Commit | Line | Data |
---|---|---|
d7ab1bab | 1 | /* -*-c-*- |
2 | * | |
d7ab1bab | 3 | * Symmetric cryptography |
4 | * | |
5 | * (c) 2004 Straylight/Edgeware | |
6 | */ | |
7 | ||
b2687a0a | 8 | /*----- Licensing notice --------------------------------------------------* |
d7ab1bab | 9 | * |
10 | * This file is part of the Python interface to Catacomb. | |
11 | * | |
12 | * Catacomb/Python is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or | |
15 | * (at your option) any later version. | |
b2687a0a | 16 | * |
d7ab1bab | 17 | * Catacomb/Python is distributed in the hope that it will be useful, |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
b2687a0a | 21 | * |
d7ab1bab | 22 | * You should have received a copy of the GNU General Public License |
23 | * along with Catacomb/Python; if not, write to the Free Software Foundation, | |
24 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
25 | */ | |
26 | ||
27 | /*----- Header files ------------------------------------------------------*/ | |
28 | ||
29 | #include "catacomb-python.h" | |
6640e060 | 30 | PUBLIC_SYMBOLS; |
d7ab1bab | 31 | #include "algorithms.h" |
6640e060 | 32 | PRIVATE_SYMBOLS; |
d7ab1bab | 33 | |
34 | /*----- Key sizes ---------------------------------------------------------*/ | |
35 | ||
c6e89d48 MW |
36 | static PyTypeObject *keysz_pytype; |
37 | static PyTypeObject *keyszany_pytype, *keyszrange_pytype, *keyszset_pytype; | |
38 | ||
39 | typedef struct keysz_pyobj { | |
40 | PyObject_HEAD | |
41 | int dfl; | |
42 | } keysz_pyobj; | |
43 | ||
44 | typedef struct keyszrange_pyobj { | |
45 | PyObject_HEAD | |
46 | int dfl; | |
47 | int min, max, mod; | |
48 | } keyszrange_pyobj; | |
49 | ||
50 | typedef struct keyszset_pyobj { | |
51 | PyObject_HEAD | |
52 | int dfl; | |
53 | PyObject *set; | |
54 | } keyszset_pyobj; | |
55 | ||
56 | #define KEYSZ_PYCHECK(o) PyObject_TypeCheck((o), keysz_pytype) | |
d7ab1bab | 57 | |
cfe23cf8 MW |
58 | #ifndef KSZ_OPMASK |
59 | # define KSZ_OPMASK 0x1f | |
60 | #endif | |
61 | ||
62 | #ifndef KSZ_16BIT | |
63 | # define KSZ_16BIT 0x20 | |
64 | #endif | |
65 | ||
d7ab1bab | 66 | PyObject *keysz_pywrap(const octet *k) |
67 | { | |
cfe23cf8 MW |
68 | unsigned op = *k++; |
69 | #define ARG(i) (op&KSZ_16BIT ? LOAD16(k + 2*(i)) : k[i]) | |
70 | switch (op&KSZ_OPMASK) { | |
d7ab1bab | 71 | case KSZ_ANY: { |
72 | keysz_pyobj *o = PyObject_New(keysz_pyobj, keyszany_pytype); | |
cfe23cf8 | 73 | o->dfl = ARG(0); |
d7ab1bab | 74 | return ((PyObject *)o); |
75 | } break; | |
76 | case KSZ_RANGE: { | |
77 | keyszrange_pyobj *o = | |
b2687a0a | 78 | PyObject_New(keyszrange_pyobj, keyszrange_pytype); |
cfe23cf8 MW |
79 | o->dfl = ARG(0); |
80 | o->min = ARG(1); | |
81 | o->max = ARG(2); | |
82 | o->mod = ARG(3); | |
d7ab1bab | 83 | if (!o->mod) o->mod = 1; |
84 | return ((PyObject *)o); | |
85 | } break; | |
86 | case KSZ_SET: { | |
87 | keyszset_pyobj *o = | |
b2687a0a | 88 | PyObject_New(keyszset_pyobj, keyszset_pytype); |
fd46a88d | 89 | PyObject *l; |
d7ab1bab | 90 | int i, n; |
cfe23cf8 MW |
91 | o->dfl = ARG(0); |
92 | for (i = 0; ARG(i); i++) ; | |
fd46a88d MW |
93 | n = i; l = PyList_New(n); |
94 | for (i = 0; i < n; i++) PyList_SET_ITEM(l, i, PyInt_FromLong(ARG(i))); | |
95 | o->set = PyFrozenSet_New(l); Py_DECREF(l); | |
d7ab1bab | 96 | return ((PyObject *)o); |
97 | } break; | |
98 | default: | |
99 | abort(); | |
100 | } | |
cfe23cf8 | 101 | #undef ARG |
d7ab1bab | 102 | } |
103 | ||
104 | static PyObject *keyszany_pynew(PyTypeObject *ty, | |
105 | PyObject *arg, PyObject *kw) | |
106 | { | |
827f89d7 | 107 | static const char *const kwlist[] = { "default", 0 }; |
d7ab1bab | 108 | int dfl; |
109 | keysz_pyobj *o; | |
110 | ||
827f89d7 | 111 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "i:new", KWLIST, &dfl)) |
d7ab1bab | 112 | goto end; |
113 | if (dfl < 0) VALERR("key size cannot be negative"); | |
114 | o = (keysz_pyobj *)ty->tp_alloc(ty, 0); | |
115 | o->dfl = dfl; | |
116 | return ((PyObject *)o); | |
117 | end: | |
118 | return (0); | |
119 | } | |
120 | ||
121 | static PyObject *keyszrange_pynew(PyTypeObject *ty, | |
122 | PyObject *arg, PyObject *kw) | |
123 | { | |
827f89d7 | 124 | static const char *const kwlist[] = { "default", "min", "max", "mod", 0 }; |
a9410db7 MW |
125 | int dfl, min = 0, max, mod = 1; |
126 | PyObject *maxobj = Py_None; | |
d7ab1bab | 127 | keyszrange_pyobj *o; |
128 | ||
a9410db7 MW |
129 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "i|iOi:new", KWLIST, |
130 | &dfl, &min, &maxobj, &mod)) | |
d7ab1bab | 131 | goto end; |
a9410db7 MW |
132 | if (maxobj == Py_None) |
133 | max = 0; | |
134 | else { | |
135 | max = PyInt_AsLong(maxobj); | |
136 | if (max == -1 && PyErr_Occurred()) goto end; | |
137 | } | |
138 | if (dfl < 0 || min < 0 || max < 0) VALERR("key size cannot be negative"); | |
838ab173 MW |
139 | if (min > dfl || (max && dfl > max)) VALERR("bad key size bounds"); |
140 | if (mod <= 0 || dfl%mod || min%mod || max%mod) | |
d7ab1bab | 141 | VALERR("bad key size modulus"); |
142 | o = (keyszrange_pyobj *)ty->tp_alloc(ty, 0); | |
143 | o->dfl = dfl; | |
144 | o->min = min; | |
145 | o->max = max; | |
146 | o->mod = mod; | |
147 | return ((PyObject *)o); | |
148 | end: | |
149 | return (0); | |
150 | } | |
151 | ||
152 | static PyObject *keyszset_pynew(PyTypeObject *ty, | |
153 | PyObject *arg, PyObject *kw) | |
154 | { | |
827f89d7 | 155 | static const char *const kwlist[] = { "default", "set", 0 }; |
fd46a88d | 156 | int dfl, xx; |
d7ab1bab | 157 | PyObject *set = 0; |
fd46a88d | 158 | PyObject *x = 0, *l = 0, *i = 0; |
d7ab1bab | 159 | keyszset_pyobj *o = 0; |
160 | ||
827f89d7 | 161 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "i|O:new", KWLIST, &dfl, &set)) |
d7ab1bab | 162 | goto end; |
fd46a88d MW |
163 | if (set) i = PyObject_GetIter(set); |
164 | else { set = PyTuple_New(0); i = PyObject_GetIter(set); Py_DECREF(set); } | |
165 | if (!i) goto end; | |
4281a7ee | 166 | l = PyList_New(0); if (!l) goto end; |
d7ab1bab | 167 | if (dfl < 0) VALERR("key size cannot be negative"); |
fd46a88d MW |
168 | x = PyInt_FromLong(dfl); PyList_Append(l, x); Py_DECREF(x); x = 0; |
169 | for (;;) { | |
170 | x = PyIter_Next(i); if (!x) break; | |
171 | xx = PyInt_AsLong(x); if (xx == -1 && PyErr_Occurred()) goto end; | |
d7ab1bab | 172 | if (xx < 0) VALERR("key size cannot be negative"); |
fd46a88d | 173 | PyList_Append(l, x); Py_DECREF(x); x = 0; |
d7ab1bab | 174 | } |
fd46a88d | 175 | if ((set = PyFrozenSet_New(l)) == 0) goto end; |
d7ab1bab | 176 | o = (keyszset_pyobj *)ty->tp_alloc(ty, 0); |
177 | o->dfl = dfl; | |
178 | o->set = set; | |
d7ab1bab | 179 | end: |
d7ab1bab | 180 | Py_XDECREF(l); |
181 | Py_XDECREF(x); | |
182 | return ((PyObject *)o); | |
183 | } | |
184 | ||
185 | static PyObject *kaget_min(PyObject *me, void *hunoz) | |
186 | { return (PyInt_FromLong(0)); } | |
a9410db7 MW |
187 | static PyObject *kaget_max(PyObject *me, void *hunoz) |
188 | { RETURN_NONE; } | |
189 | ||
190 | static PyObject *krget_max(PyObject *me, void *hunoz) | |
191 | { | |
192 | int max = ((keyszrange_pyobj *)me)->max; | |
193 | if (max) return (PyInt_FromLong(max)); | |
194 | else RETURN_NONE; | |
195 | } | |
d7ab1bab | 196 | |
197 | static PyObject *ksget_min(PyObject *me, void *hunoz) | |
198 | { | |
fd46a88d MW |
199 | PyObject *i = PyObject_GetIter(((keyszset_pyobj *)me)->set); |
200 | PyObject *v = 0; | |
201 | int y, x = -1; | |
202 | for (;;) { | |
203 | v = PyIter_Next(i); if (!v) break; | |
204 | y = PyInt_AsLong(v); assert(y >= 0); | |
d7ab1bab | 205 | if (x == -1 || y < x) x = y; |
206 | } | |
fd46a88d MW |
207 | Py_DECREF(i); Py_XDECREF(v); |
208 | if (PyErr_Occurred()) return (0); | |
d7ab1bab | 209 | return (PyInt_FromLong(x)); |
210 | } | |
211 | ||
212 | static PyObject *ksget_max(PyObject *me, void *hunoz) | |
213 | { | |
fd46a88d MW |
214 | PyObject *i = PyObject_GetIter(((keyszset_pyobj *)me)->set); |
215 | PyObject *v = 0; | |
216 | int y, x = -1; | |
217 | for (;;) { | |
218 | v = PyIter_Next(i); if (!v) break; | |
219 | y = PyInt_AsLong(v); assert(y >= 0); | |
d7ab1bab | 220 | if (y > x) x = y; |
221 | } | |
fd46a88d MW |
222 | Py_DECREF(i); Py_XDECREF(v); |
223 | if (PyErr_Occurred()) return (0); | |
d7ab1bab | 224 | return (PyInt_FromLong(x)); |
225 | } | |
226 | ||
c90f712e | 227 | static const PyMemberDef keysz_pymembers[] = { |
d7ab1bab | 228 | #define MEMBERSTRUCT keysz_pyobj |
8dfb09a7 | 229 | MEMRNM(default, T_INT, dfl, READONLY, "KSZ.default -> default key size") |
d7ab1bab | 230 | #undef MEMBERSTRUCT |
231 | { 0 } | |
232 | }; | |
233 | ||
f281293c | 234 | #define KSZCONVOP(op) \ |
a157093f | 235 | static PyObject *kszmeth_##op(PyObject *me, PyObject *arg) \ |
f281293c MW |
236 | { \ |
237 | double x, y; \ | |
a157093f | 238 | if (!PyArg_ParseTuple(arg, "d:" #op, &x)) return (0); \ |
f281293c MW |
239 | y = keysz_##op(x); \ |
240 | return (PyFloat_FromDouble(y)); \ | |
241 | } | |
242 | KSZCONVOP(fromdl) | |
243 | KSZCONVOP(fromschnorr) | |
244 | KSZCONVOP(fromif) | |
245 | KSZCONVOP(fromec) | |
246 | KSZCONVOP(todl) | |
247 | KSZCONVOP(toschnorr) | |
248 | KSZCONVOP(toif) | |
249 | KSZCONVOP(toec) | |
250 | #undef KSZCONVOP | |
251 | ||
a157093f MW |
252 | static const PyMethodDef keysz_pymethods[] = { |
253 | #define METHNAME(name) kszmeth_##name | |
254 | SMTH (fromdl, "fromdl(N) -> M: " | |
255 | "convert integer discrete log field size to work factor") | |
256 | SMTH (fromschnorr, "fromschnorr(N) -> M: " | |
257 | "convert Schnorr group order to work factor") | |
258 | SMTH (fromif, "fromif(N) -> M: " | |
259 | "convert integer factorization problem size to work factor") | |
260 | SMTH (fromec, "fromec(N) -> M: " | |
261 | "convert elliptic curve group order to work factor") | |
262 | SMTH (todl, "todl(N) -> M: " | |
263 | "convert work factor to integer discrete log field size") | |
264 | SMTH (toschnorr, "toschnorr(N) -> M: " | |
265 | "convert work factor to Schnorr group order") | |
266 | SMTH (toif, "toif(N) -> M: " | |
267 | "convert work factor to integer factorization problem size") | |
268 | SMTH (toec, "toec(N) -> M: " | |
269 | "convert work factor to elliptic curve group order") | |
270 | SMTH (toec, "toec(N) -> M: " | |
271 | "convert work factor to elliptic curve group order") | |
272 | #undef METHNAME | |
273 | { 0 } | |
274 | }; | |
275 | ||
c90f712e | 276 | static const PyGetSetDef keyszany_pygetset[] = { |
d7ab1bab | 277 | #define GETSETNAME(op, name) ka##op##_##name |
d96c882e MW |
278 | GET (min, "KSZ.min -> smallest allowed key size") |
279 | GET (max, "KSZ.max -> largest allowed key size") | |
d7ab1bab | 280 | #undef GETSETNAME |
281 | { 0 } | |
282 | }; | |
283 | ||
c90f712e | 284 | static const PyMemberDef keyszrange_pymembers[] = { |
d7ab1bab | 285 | #define MEMBERSTRUCT keyszrange_pyobj |
d96c882e | 286 | MEMBER(min, T_INT, READONLY, "KSZ.min -> smallest allowed key size") |
d96c882e MW |
287 | MEMBER(mod, T_INT, READONLY, |
288 | "KSZ.mod -> key size must be a multiple of this") | |
d7ab1bab | 289 | #undef MEMBERSTRUCT |
290 | { 0 } | |
291 | }; | |
292 | ||
a9410db7 MW |
293 | static const PyGetSetDef keyszrange_pygetset[] = { |
294 | #define GETSETNAME(op, name) kr##op##_##name | |
295 | GET (max, "KSZ.max -> largest allowed key size") | |
296 | #undef GETSETNAME | |
297 | { 0 } | |
298 | }; | |
299 | ||
c90f712e | 300 | static const PyGetSetDef keyszset_pygetset[] = { |
d7ab1bab | 301 | #define GETSETNAME(op, name) ks##op##_##name |
d96c882e MW |
302 | GET (min, "KSZ.min -> smallest allowed key size") |
303 | GET (max, "KSZ.max -> largest allowed key size") | |
d7ab1bab | 304 | #undef GETSETNAME |
305 | { 0 } | |
306 | }; | |
307 | ||
c90f712e | 308 | static const PyMemberDef keyszset_pymembers[] = { |
d7ab1bab | 309 | #define MEMBERSTRUCT keyszset_pyobj |
d96c882e | 310 | MEMBER(set, T_OBJECT, READONLY, "KSZ.set -> allowed key sizes") |
d7ab1bab | 311 | #undef MEMBERSTRUCT |
312 | { 0 } | |
313 | }; | |
314 | ||
c263b05c | 315 | static const PyTypeObject keysz_pytype_skel = { |
591bf41b | 316 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
c461c9b3 | 317 | "KeySZ", /* @tp_name@ */ |
d7ab1bab | 318 | sizeof(keysz_pyobj), /* @tp_basicsize@ */ |
319 | 0, /* @tp_itemsize@ */ | |
320 | ||
3aa33042 | 321 | 0, /* @tp_dealloc@ */ |
d7ab1bab | 322 | 0, /* @tp_print@ */ |
323 | 0, /* @tp_getattr@ */ | |
324 | 0, /* @tp_setattr@ */ | |
325 | 0, /* @tp_compare@ */ | |
326 | 0, /* @tp_repr@ */ | |
327 | 0, /* @tp_as_number@ */ | |
328 | 0, /* @tp_as_sequence@ */ | |
329 | 0, /* @tp_as_mapping@ */ | |
330 | 0, /* @tp_hash@ */ | |
331 | 0, /* @tp_call@ */ | |
332 | 0, /* @tp_str@ */ | |
333 | 0, /* @tp_getattro@ */ | |
334 | 0, /* @tp_setattro@ */ | |
335 | 0, /* @tp_as_buffer@ */ | |
336 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
337 | Py_TPFLAGS_BASETYPE, | |
338 | ||
339 | /* @tp_doc@ */ | |
d96c882e | 340 | "Key size constraints. Abstract.", |
d7ab1bab | 341 | |
342 | 0, /* @tp_traverse@ */ | |
343 | 0, /* @tp_clear@ */ | |
344 | 0, /* @tp_richcompare@ */ | |
345 | 0, /* @tp_weaklistoffset@ */ | |
346 | 0, /* @tp_iter@ */ | |
963a6148 | 347 | 0, /* @tp_iternext@ */ |
a157093f | 348 | PYMETHODS(keysz), /* @tp_methods@ */ |
c90f712e | 349 | PYMEMBERS(keysz), /* @tp_members@ */ |
d7ab1bab | 350 | 0, /* @tp_getset@ */ |
351 | 0, /* @tp_base@ */ | |
352 | 0, /* @tp_dict@ */ | |
353 | 0, /* @tp_descr_get@ */ | |
354 | 0, /* @tp_descr_set@ */ | |
355 | 0, /* @tp_dictoffset@ */ | |
356 | 0, /* @tp_init@ */ | |
357 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
358 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 359 | 0, /* @tp_free@ */ |
d7ab1bab | 360 | 0 /* @tp_is_gc@ */ |
361 | }; | |
362 | ||
c263b05c | 363 | static const PyTypeObject keyszany_pytype_skel = { |
591bf41b | 364 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
c461c9b3 | 365 | "KeySZAny", /* @tp_name@ */ |
d7ab1bab | 366 | sizeof(keysz_pyobj), /* @tp_basicsize@ */ |
367 | 0, /* @tp_itemsize@ */ | |
368 | ||
3aa33042 | 369 | 0, /* @tp_dealloc@ */ |
d7ab1bab | 370 | 0, /* @tp_print@ */ |
371 | 0, /* @tp_getattr@ */ | |
372 | 0, /* @tp_setattr@ */ | |
373 | 0, /* @tp_compare@ */ | |
374 | 0, /* @tp_repr@ */ | |
375 | 0, /* @tp_as_number@ */ | |
376 | 0, /* @tp_as_sequence@ */ | |
377 | 0, /* @tp_as_mapping@ */ | |
378 | 0, /* @tp_hash@ */ | |
379 | 0, /* @tp_call@ */ | |
380 | 0, /* @tp_str@ */ | |
381 | 0, /* @tp_getattro@ */ | |
382 | 0, /* @tp_setattro@ */ | |
383 | 0, /* @tp_as_buffer@ */ | |
384 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
385 | Py_TPFLAGS_BASETYPE, | |
386 | ||
387 | /* @tp_doc@ */ | |
d96c882e MW |
388 | "KeySZAny(DEFAULT)\n" |
389 | " Key size constraints. This object imposes no constraints on size.", | |
d7ab1bab | 390 | |
391 | 0, /* @tp_traverse@ */ | |
392 | 0, /* @tp_clear@ */ | |
393 | 0, /* @tp_richcompare@ */ | |
394 | 0, /* @tp_weaklistoffset@ */ | |
395 | 0, /* @tp_iter@ */ | |
963a6148 | 396 | 0, /* @tp_iternext@ */ |
d7ab1bab | 397 | 0, /* @tp_methods@ */ |
398 | 0, /* @tp_members@ */ | |
c90f712e | 399 | PYGETSET(keyszany), /* @tp_getset@ */ |
d7ab1bab | 400 | 0, /* @tp_base@ */ |
401 | 0, /* @tp_dict@ */ | |
402 | 0, /* @tp_descr_get@ */ | |
403 | 0, /* @tp_descr_set@ */ | |
404 | 0, /* @tp_dictoffset@ */ | |
405 | 0, /* @tp_init@ */ | |
406 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
407 | keyszany_pynew, /* @tp_new@ */ | |
3aa33042 | 408 | 0, /* @tp_free@ */ |
d7ab1bab | 409 | 0 /* @tp_is_gc@ */ |
410 | }; | |
411 | ||
c263b05c | 412 | static const PyTypeObject keyszrange_pytype_skel = { |
591bf41b | 413 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
c461c9b3 | 414 | "KeySZRange", /* @tp_name@ */ |
d7ab1bab | 415 | sizeof(keyszrange_pyobj), /* @tp_basicsize@ */ |
416 | 0, /* @tp_itemsize@ */ | |
417 | ||
3aa33042 | 418 | 0, /* @tp_dealloc@ */ |
d7ab1bab | 419 | 0, /* @tp_print@ */ |
420 | 0, /* @tp_getattr@ */ | |
421 | 0, /* @tp_setattr@ */ | |
422 | 0, /* @tp_compare@ */ | |
423 | 0, /* @tp_repr@ */ | |
424 | 0, /* @tp_as_number@ */ | |
425 | 0, /* @tp_as_sequence@ */ | |
426 | 0, /* @tp_as_mapping@ */ | |
427 | 0, /* @tp_hash@ */ | |
428 | 0, /* @tp_call@ */ | |
429 | 0, /* @tp_str@ */ | |
430 | 0, /* @tp_getattro@ */ | |
431 | 0, /* @tp_setattro@ */ | |
432 | 0, /* @tp_as_buffer@ */ | |
433 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
434 | Py_TPFLAGS_BASETYPE, | |
435 | ||
436 | /* @tp_doc@ */ | |
d96c882e MW |
437 | "KeySZRange(DEFAULT, [min = 0], [max = 0], [mod = 1])\n" |
438 | " Key size constraints: size must be between MIN and MAX inclusive, and\n" | |
439 | " be a multiple of MOD.", | |
d7ab1bab | 440 | |
441 | 0, /* @tp_traverse@ */ | |
442 | 0, /* @tp_clear@ */ | |
443 | 0, /* @tp_richcompare@ */ | |
444 | 0, /* @tp_weaklistoffset@ */ | |
445 | 0, /* @tp_iter@ */ | |
963a6148 | 446 | 0, /* @tp_iternext@ */ |
d7ab1bab | 447 | 0, /* @tp_methods@ */ |
c90f712e | 448 | PYMEMBERS(keyszrange), /* @tp_members@ */ |
a9410db7 | 449 | PYGETSET(keyszrange), /* @tp_getset@ */ |
d7ab1bab | 450 | 0, /* @tp_base@ */ |
451 | 0, /* @tp_dict@ */ | |
452 | 0, /* @tp_descr_get@ */ | |
453 | 0, /* @tp_descr_set@ */ | |
454 | 0, /* @tp_dictoffset@ */ | |
455 | 0, /* @tp_init@ */ | |
456 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
457 | keyszrange_pynew, /* @tp_new@ */ | |
3aa33042 | 458 | 0, /* @tp_free@ */ |
d7ab1bab | 459 | 0 /* @tp_is_gc@ */ |
460 | }; | |
461 | ||
c263b05c | 462 | static const PyTypeObject keyszset_pytype_skel = { |
591bf41b | 463 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
c461c9b3 | 464 | "KeySZSet", /* @tp_name@ */ |
d7ab1bab | 465 | sizeof(keyszset_pyobj), /* @tp_basicsize@ */ |
466 | 0, /* @tp_itemsize@ */ | |
467 | ||
3aa33042 | 468 | 0, /* @tp_dealloc@ */ |
d7ab1bab | 469 | 0, /* @tp_print@ */ |
470 | 0, /* @tp_getattr@ */ | |
471 | 0, /* @tp_setattr@ */ | |
472 | 0, /* @tp_compare@ */ | |
473 | 0, /* @tp_repr@ */ | |
474 | 0, /* @tp_as_number@ */ | |
475 | 0, /* @tp_as_sequence@ */ | |
476 | 0, /* @tp_as_mapping@ */ | |
477 | 0, /* @tp_hash@ */ | |
478 | 0, /* @tp_call@ */ | |
479 | 0, /* @tp_str@ */ | |
480 | 0, /* @tp_getattro@ */ | |
481 | 0, /* @tp_setattro@ */ | |
482 | 0, /* @tp_as_buffer@ */ | |
483 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
484 | Py_TPFLAGS_BASETYPE, | |
485 | ||
486 | /* @tp_doc@ */ | |
fd46a88d MW |
487 | "KeySZSet(DEFAULT, ITER)\n" |
488 | " Key size constraints: size must be DEFAULT or an element of ITER.", | |
d7ab1bab | 489 | |
490 | 0, /* @tp_traverse@ */ | |
491 | 0, /* @tp_clear@ */ | |
492 | 0, /* @tp_richcompare@ */ | |
493 | 0, /* @tp_weaklistoffset@ */ | |
494 | 0, /* @tp_iter@ */ | |
963a6148 | 495 | 0, /* @tp_iternext@ */ |
d7ab1bab | 496 | 0, /* @tp_methods@ */ |
c90f712e MW |
497 | PYMEMBERS(keyszset), /* @tp_members@ */ |
498 | PYGETSET(keyszset), /* @tp_getset@ */ | |
d7ab1bab | 499 | 0, /* @tp_base@ */ |
500 | 0, /* @tp_dict@ */ | |
501 | 0, /* @tp_descr_get@ */ | |
502 | 0, /* @tp_descr_set@ */ | |
503 | 0, /* @tp_dictoffset@ */ | |
504 | 0, /* @tp_init@ */ | |
505 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
506 | keyszset_pynew, /* @tp_new@ */ | |
3aa33042 | 507 | 0, /* @tp_free@ */ |
d7ab1bab | 508 | 0 /* @tp_is_gc@ */ |
509 | }; | |
510 | ||
511 | /*----- Symmetric encryption ----------------------------------------------*/ | |
512 | ||
c6e89d48 MW |
513 | static PyTypeObject *gccipher_pytype, *gcipher_pytype; |
514 | ||
515 | typedef struct gccipher_pyobj { | |
516 | PyHeapTypeObject ty; | |
517 | gccipher *cc; | |
518 | } gccipher_pyobj; | |
519 | ||
520 | #define GCCIPHER_PYCHECK(o) PyObject_TypeCheck((o), gccipher_pytype) | |
521 | #define GCCIPHER_CC(o) (((gccipher_pyobj *)(o))->cc) | |
522 | ||
523 | typedef struct gcipher_pyobj { | |
524 | PyObject_HEAD | |
525 | gcipher *c; | |
526 | } gcipher_pyobj; | |
527 | ||
528 | #define GCIPHER_PYCHECK(o) PyObject_TypeCheck((o), gcipher_pytype) | |
529 | #define GCIPHER_C(o) (((gcipher_pyobj *)(o))->c) | |
d7ab1bab | 530 | |
531 | CONVFUNC(gccipher, gccipher *, GCCIPHER_CC) | |
d7ab1bab | 532 | |
c6e89d48 | 533 | static PyObject *gcipher_pywrap(PyObject *cobj, gcipher *c) |
d7ab1bab | 534 | { |
535 | gcipher_pyobj *g; | |
536 | if (!cobj) cobj = gccipher_pywrap((/*unconst*/ gccipher *)GC_CLASS(c)); | |
537 | else Py_INCREF(cobj); | |
538 | g = PyObject_NEW(gcipher_pyobj, (PyTypeObject *)cobj); | |
539 | g->c = c; | |
b2687a0a | 540 | return ((PyObject *)g); |
d7ab1bab | 541 | } |
542 | ||
543 | static PyObject *gcipher_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
544 | { | |
827f89d7 | 545 | static const char *const kwlist[] = { "k", 0 }; |
67c75893 | 546 | struct bin k; |
d7ab1bab | 547 | |
67c75893 | 548 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&:new", KWLIST, convbin, &k)) |
d7ab1bab | 549 | goto end; |
67c75893 | 550 | if (keysz(k.sz, GCCIPHER_CC(ty)->keysz) != k.sz) VALERR("bad key length"); |
d7ab1bab | 551 | return (gcipher_pywrap((PyObject *)ty, |
67c75893 | 552 | GC_INIT(GCCIPHER_CC(ty), k.p, k.sz))); |
d7ab1bab | 553 | end: |
b2687a0a | 554 | return (0); |
d7ab1bab | 555 | } |
556 | ||
557 | PyObject *gccipher_pywrap(gccipher *cc) | |
558 | { | |
df9f8366 | 559 | gccipher_pyobj *g = newtype(gccipher_pytype, 0, cc->name); |
d7ab1bab | 560 | g->cc = cc; |
24b3d57b MW |
561 | g->ty.ht_type.tp_basicsize = sizeof(gcipher_pyobj); |
562 | g->ty.ht_type.tp_base = gcipher_pytype; | |
d7ab1bab | 563 | Py_INCREF(gcipher_pytype); |
24b3d57b MW |
564 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
565 | Py_TPFLAGS_BASETYPE | | |
566 | Py_TPFLAGS_HEAPTYPE); | |
567 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
568 | g->ty.ht_type.tp_free = 0; | |
569 | g->ty.ht_type.tp_new = gcipher_pynew; | |
dc075750 | 570 | typeready(&g->ty.ht_type); |
d7ab1bab | 571 | return ((PyObject *)g); |
572 | } | |
573 | ||
574 | static void gcipher_pydealloc(PyObject *me) | |
575 | { | |
c41d0371 | 576 | GC_DESTROY(GCIPHER_C(me)); |
2a448f86 | 577 | Py_DECREF(Py_TYPE(me)); |
3aa33042 | 578 | FREEOBJ(me); |
d7ab1bab | 579 | } |
580 | ||
581 | static PyObject *gccget_name(PyObject *me, void *hunoz) | |
2135a6d3 | 582 | { return (TEXT_FROMSTR(GCCIPHER_CC(me)->name)); } |
d7ab1bab | 583 | |
584 | static PyObject *gccget_keysz(PyObject *me, void *hunoz) | |
585 | { return (keysz_pywrap(GCCIPHER_CC(me)->keysz)); } | |
586 | ||
587 | static PyObject *gccget_blksz(PyObject *me, void *hunoz) | |
588 | { return (PyInt_FromLong(GCCIPHER_CC(me)->blksz)); } | |
589 | ||
590 | static PyObject *gcmeth_encrypt(PyObject *me, PyObject *arg) | |
591 | { | |
67c75893 | 592 | struct bin m; |
d7ab1bab | 593 | PyObject *rc = 0; |
594 | ||
67c75893 MW |
595 | if (!PyArg_ParseTuple(arg, "O&:encrypt", convbin, &m)) return (0); |
596 | rc = bytestring_pywrap(0, m.sz); | |
2135a6d3 | 597 | GC_ENCRYPT(GCIPHER_C(me), m.p, BIN_PTR(rc), m.sz); |
d7ab1bab | 598 | return (rc); |
599 | } | |
600 | ||
601 | static PyObject *gcmeth_enczero(PyObject *me, PyObject *arg) | |
602 | { | |
603 | char *p; | |
604 | int sz; | |
605 | PyObject *rc = 0; | |
606 | ||
607 | if (!PyArg_ParseTuple(arg, "i:enczero", &sz)) return (0); | |
608 | rc = bytestring_pywrap(0, sz); | |
2135a6d3 | 609 | p = BIN_PTR(rc); |
d7ab1bab | 610 | memset(p, 0, sz); |
611 | GC_ENCRYPT(GCIPHER_C(me), p, p, sz); | |
612 | return (rc); | |
613 | } | |
614 | ||
615 | static PyObject *gcmeth_decrypt(PyObject *me, PyObject *arg) | |
616 | { | |
67c75893 | 617 | struct bin c; |
d7ab1bab | 618 | PyObject *rc = 0; |
619 | ||
67c75893 MW |
620 | if (!PyArg_ParseTuple(arg, "O&:decrypt", convbin, &c)) return (0); |
621 | rc = bytestring_pywrap(0, c.sz); | |
2135a6d3 | 622 | GC_DECRYPT(GCIPHER_C(me), c.p, BIN_PTR(rc), c.sz); |
d7ab1bab | 623 | return (rc); |
624 | } | |
625 | ||
626 | static PyObject *gcmeth_deczero(PyObject *me, PyObject *arg) | |
627 | { | |
628 | char *p; | |
629 | int sz; | |
630 | PyObject *rc = 0; | |
631 | ||
632 | if (!PyArg_ParseTuple(arg, "i:deczero", &sz)) return (0); | |
633 | rc = bytestring_pywrap(0, sz); | |
2135a6d3 | 634 | p = BIN_PTR(rc); |
d7ab1bab | 635 | memset(p, 0, sz); |
636 | GC_DECRYPT(GCIPHER_C(me), p, p, sz); | |
637 | return (rc); | |
638 | } | |
639 | ||
640 | static PyObject *gcmeth_setiv(PyObject *me, PyObject *arg) | |
641 | { | |
67c75893 | 642 | struct bin iv; |
d7ab1bab | 643 | |
67c75893 | 644 | if (!PyArg_ParseTuple(arg, "O&:setiv", convbin, &iv)) goto end; |
30eef666 | 645 | if (!GCIPHER_C(me)->ops->setiv) VALERR("`setiv' not supported"); |
d7ab1bab | 646 | if (!GC_CLASS(GCIPHER_C(me))->blksz) VALERR("not a block cipher mode"); |
67c75893 MW |
647 | if (iv.sz != GC_CLASS(GCIPHER_C(me))->blksz) VALERR("bad IV length"); |
648 | GC_SETIV(GCIPHER_C(me), iv.p); | |
d7ab1bab | 649 | RETURN_ME; |
650 | end: | |
651 | return (0); | |
652 | } | |
653 | ||
91e56f06 | 654 | static PyObject *gcmeth_bdry(PyObject *me) |
d7ab1bab | 655 | { |
30eef666 | 656 | if (!GCIPHER_C(me)->ops->bdry) VALERR("`bdry' not supported"); |
d7ab1bab | 657 | if (!GC_CLASS(GCIPHER_C(me))->blksz) VALERR("not a block cipher mode"); |
658 | GC_BDRY(GCIPHER_C(me)); | |
659 | RETURN_ME; | |
660 | end: | |
661 | return (0); | |
662 | } | |
663 | ||
c90f712e | 664 | static const PyGetSetDef gccipher_pygetset[] = { |
d7ab1bab | 665 | #define GETSETNAME(op, name) gcc##op##_##name |
d96c882e MW |
666 | GET (keysz, "CC.keysz -> acceptable key sizes") |
667 | GET (blksz, "CC.blksz -> block size, or zero") | |
668 | GET (name, "CC.name -> name of this kind of cipher") | |
d7ab1bab | 669 | #undef GETSETNAME |
670 | { 0 } | |
671 | }; | |
672 | ||
c90f712e | 673 | static const PyMethodDef gcipher_pymethods[] = { |
d7ab1bab | 674 | #define METHNAME(name) gcmeth_##name |
d96c882e MW |
675 | METH (encrypt, "C.encrypt(PT) -> CT") |
676 | METH (enczero, "C.enczero(N) -> CT") | |
677 | METH (decrypt, "C.decrypt(CT) -> PT") | |
678 | METH (deczero, "C.deczero(N) -> PT") | |
679 | METH (setiv, "C.setiv(IV)") | |
91e56f06 | 680 | NAMETH(bdry, "C.bdry()") |
d7ab1bab | 681 | #undef METHNAME |
682 | { 0 } | |
683 | }; | |
684 | ||
c263b05c | 685 | static const PyTypeObject gccipher_pytype_skel = { |
591bf41b | 686 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
c461c9b3 | 687 | "GCCipher", /* @tp_name@ */ |
d7ab1bab | 688 | sizeof(gccipher_pyobj), /* @tp_basicsize@ */ |
689 | 0, /* @tp_itemsize@ */ | |
690 | ||
691 | 0, /* @tp_dealloc@ */ | |
692 | 0, /* @tp_print@ */ | |
693 | 0, /* @tp_getattr@ */ | |
694 | 0, /* @tp_setattr@ */ | |
695 | 0, /* @tp_compare@ */ | |
696 | 0, /* @tp_repr@ */ | |
697 | 0, /* @tp_as_number@ */ | |
698 | 0, /* @tp_as_sequence@ */ | |
699 | 0, /* @tp_as_mapping@ */ | |
700 | 0, /* @tp_hash@ */ | |
701 | 0, /* @tp_call@ */ | |
702 | 0, /* @tp_str@ */ | |
703 | 0, /* @tp_getattro@ */ | |
704 | 0, /* @tp_setattro@ */ | |
705 | 0, /* @tp_as_buffer@ */ | |
706 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
707 | Py_TPFLAGS_BASETYPE, | |
708 | ||
709 | /* @tp_doc@ */ | |
d96c882e | 710 | "Symmetric cipher metaclass.", |
d7ab1bab | 711 | |
712 | 0, /* @tp_traverse@ */ | |
713 | 0, /* @tp_clear@ */ | |
714 | 0, /* @tp_richcompare@ */ | |
715 | 0, /* @tp_weaklistoffset@ */ | |
716 | 0, /* @tp_iter@ */ | |
963a6148 | 717 | 0, /* @tp_iternext@ */ |
d7ab1bab | 718 | 0, /* @tp_methods@ */ |
719 | 0, /* @tp_members@ */ | |
c90f712e | 720 | PYGETSET(gccipher), /* @tp_getset@ */ |
d7ab1bab | 721 | 0, /* @tp_base@ */ |
722 | 0, /* @tp_dict@ */ | |
723 | 0, /* @tp_descr_get@ */ | |
724 | 0, /* @tp_descr_set@ */ | |
725 | 0, /* @tp_dictoffset@ */ | |
726 | 0, /* @tp_init@ */ | |
727 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
728 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 729 | 0, /* @tp_free@ */ |
d7ab1bab | 730 | 0 /* @tp_is_gc@ */ |
731 | }; | |
732 | ||
c263b05c | 733 | static const PyTypeObject gcipher_pytype_skel = { |
591bf41b | 734 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
c461c9b3 | 735 | "GCipher", /* @tp_name@ */ |
d7ab1bab | 736 | sizeof(gcipher_pyobj), /* @tp_basicsize@ */ |
737 | 0, /* @tp_itemsize@ */ | |
738 | ||
739 | gcipher_pydealloc, /* @tp_dealloc@ */ | |
740 | 0, /* @tp_print@ */ | |
741 | 0, /* @tp_getattr@ */ | |
742 | 0, /* @tp_setattr@ */ | |
743 | 0, /* @tp_compare@ */ | |
744 | 0, /* @tp_repr@ */ | |
745 | 0, /* @tp_as_number@ */ | |
746 | 0, /* @tp_as_sequence@ */ | |
747 | 0, /* @tp_as_mapping@ */ | |
748 | 0, /* @tp_hash@ */ | |
749 | 0, /* @tp_call@ */ | |
750 | 0, /* @tp_str@ */ | |
751 | 0, /* @tp_getattro@ */ | |
752 | 0, /* @tp_setattro@ */ | |
753 | 0, /* @tp_as_buffer@ */ | |
754 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
755 | Py_TPFLAGS_BASETYPE, | |
756 | ||
757 | /* @tp_doc@ */ | |
d96c882e | 758 | "Symmetric cipher, abstract base class.", |
d7ab1bab | 759 | |
760 | 0, /* @tp_traverse@ */ | |
761 | 0, /* @tp_clear@ */ | |
762 | 0, /* @tp_richcompare@ */ | |
763 | 0, /* @tp_weaklistoffset@ */ | |
764 | 0, /* @tp_iter@ */ | |
963a6148 | 765 | 0, /* @tp_iternext@ */ |
c90f712e | 766 | PYMETHODS(gcipher), /* @tp_methods@ */ |
d7ab1bab | 767 | 0, /* @tp_members@ */ |
768 | 0, /* @tp_getset@ */ | |
769 | 0, /* @tp_base@ */ | |
770 | 0, /* @tp_dict@ */ | |
771 | 0, /* @tp_descr_get@ */ | |
772 | 0, /* @tp_descr_set@ */ | |
773 | 0, /* @tp_dictoffset@ */ | |
774 | 0, /* @tp_init@ */ | |
775 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
776 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 777 | 0, /* @tp_free@ */ |
d7ab1bab | 778 | 0 /* @tp_is_gc@ */ |
779 | }; | |
780 | ||
bebf03ab MW |
781 | /*----- Authenticated encryption ------------------------------------------*/ |
782 | ||
c6e89d48 MW |
783 | static PyTypeObject *gcaead_pytype, *gaeadkey_pytype; |
784 | static PyTypeObject *gcaeadaad_pytype, *gaeadaad_pytype; | |
785 | static PyTypeObject *gcaeadenc_pytype, *gaeadenc_pytype; | |
786 | static PyTypeObject *gcaeaddec_pytype, *gaeaddec_pytype; | |
787 | ||
788 | typedef struct gcaead_pyobj { | |
789 | PyHeapTypeObject ty; | |
790 | gcaead *aec; | |
791 | struct gcaeadaad_pyobj *aad; | |
792 | struct gcaeadenc_pyobj *enc; | |
793 | struct gcaeaddec_pyobj *dec; | |
794 | } gcaead_pyobj; | |
795 | ||
796 | #define GCAEAD_PYCHECK(o) PyObject_TypeCheck((o), gcaead_pytype) | |
797 | #define GCAEAD_AEC(o) (((gcaead_pyobj *)(o))->aec) | |
798 | #define GCAEAD_AAD(o) (((gcaead_pyobj *)(o))->aad) | |
799 | #define GCAEAD_ENC(o) (((gcaead_pyobj *)(o))->enc) | |
800 | #define GCAEAD_DEC(o) (((gcaead_pyobj *)(o))->dec) | |
801 | static PyObject *gcaead_pywrap(gcaead *); | |
802 | ||
803 | typedef struct gaeadkey_pyobj { | |
804 | PyObject_HEAD | |
805 | gaead_key *k; | |
806 | } gaeadkey_pyobj; | |
807 | ||
808 | #define GAEADKEY_PYCHECK(o) PyObject_TypeCheck((o), gaeadkey_pytype) | |
809 | #define GAEADKEY_K(o) (((gaeadkey_pyobj *)(o))->k) | |
810 | ||
811 | typedef struct gcaeadaad_pyobj { | |
812 | PyHeapTypeObject ty; | |
813 | gcaead_pyobj *key; | |
814 | } gcaeadaad_pyobj; | |
815 | ||
816 | #define GCAEADAAD_KEY(o) (((gcaeadaad_pyobj *)(o))->key) | |
817 | static PyObject *gaeadaad_pywrap(PyObject *, gaead_aad *, unsigned, size_t); | |
818 | ||
819 | typedef struct gaeadaad_pyobj { | |
820 | PyObject_HEAD | |
821 | gaead_aad *a; | |
822 | unsigned f; | |
823 | #define AEADF_DEAD 32768u | |
824 | size_t hsz, hlen; | |
825 | } gaeadaad_pyobj; | |
826 | ||
827 | #define GAEADAAD_PYCHECK(o) PyObject_TypeCheck((o), gaeadaad_pytype) | |
828 | #define GAEADAAD_A(o) (((gaeadaad_pyobj *)(o))->a) | |
829 | #define GAEADAAD_F(o) (((gaeadaad_pyobj *)(o))->f) | |
830 | #define GAEADAAD_HSZ(o) (((gaeadaad_pyobj *)(o))->hsz) | |
831 | #define GAEADAAD_HLEN(o) (((gaeadaad_pyobj *)(o))->hlen) | |
832 | ||
833 | typedef struct gcaeadenc_pyobj { | |
834 | PyHeapTypeObject ty; | |
835 | gcaead_pyobj *key; | |
836 | } gcaeadenc_pyobj; | |
837 | ||
838 | #define GCAEADENC_KEY(o) (((gcaeadenc_pyobj *)(o))->key) | |
839 | static PyObject *gaeadenc_pywrap(PyObject *, gaead_enc *, unsigned, | |
840 | size_t, size_t, size_t); | |
841 | ||
842 | typedef struct gaeadenc_pyobj { | |
843 | PyObject_HEAD | |
844 | gaead_enc *e; | |
845 | gaeadaad_pyobj *aad; | |
846 | unsigned f; | |
847 | size_t hsz, msz, tsz; | |
848 | size_t mlen; | |
849 | } gaeadenc_pyobj; | |
850 | ||
851 | #define GAEADENC_PYCHECK(o) PyObject_TypeCheck((o), gaeadenc_pytype) | |
852 | #define GAEADENC_AAD(o) (((gaeadenc_pyobj *)(o))->aad) | |
853 | #define GAEADENC_E(o) (((gaeadenc_pyobj *)(o))->e) | |
854 | #define GAEADENC_F(o) (((gaeadenc_pyobj *)(o))->f) | |
855 | #define GAEADENC_HSZ(o) (((gaeadenc_pyobj *)(o))->hsz) | |
856 | #define GAEADENC_MSZ(o) (((gaeadenc_pyobj *)(o))->msz) | |
857 | #define GAEADENC_TSZ(o) (((gaeadenc_pyobj *)(o))->tsz) | |
858 | #define GAEADENC_MLEN(o) (((gaeadenc_pyobj *)(o))->mlen) | |
859 | ||
860 | typedef struct gcaeaddec_pyobj { | |
861 | PyHeapTypeObject ty; | |
862 | gcaead_pyobj *key; | |
863 | } gcaeaddec_pyobj; | |
864 | ||
865 | #define GCAEADDEC_KEY(o) (((gcaeaddec_pyobj *)(o))->key) | |
866 | static PyObject *gaeaddec_pywrap(PyObject *, gaead_dec *, unsigned, | |
867 | size_t, size_t, size_t); | |
868 | ||
869 | typedef struct gaeaddec_pyobj { | |
870 | PyObject_HEAD | |
871 | gaead_dec *d; | |
872 | gaeadaad_pyobj *aad; | |
873 | unsigned f; | |
874 | size_t hsz, csz, tsz; | |
875 | size_t clen; | |
876 | } gaeaddec_pyobj; | |
877 | ||
878 | #define GAEADDEC_PYCHECK(o) PyObject_TypeCheck((o), gaeaddec_pytype) | |
879 | #define GAEADDEC_AAD(o) (((gaeaddec_pyobj *)(o))->aad) | |
880 | #define GAEADDEC_D(o) (((gaeaddec_pyobj *)(o))->d) | |
881 | #define GAEADDEC_F(o) (((gaeaddec_pyobj *)(o))->f) | |
882 | #define GAEADDEC_HSZ(o) (((gaeaddec_pyobj *)(o))->hsz) | |
883 | #define GAEADDEC_CSZ(o) (((gaeaddec_pyobj *)(o))->csz) | |
884 | #define GAEADDEC_TSZ(o) (((gaeaddec_pyobj *)(o))->tsz) | |
885 | #define GAEADDEC_CLEN(o) (((gaeaddec_pyobj *)(o))->clen) | |
886 | ||
887 | static PyObject *gaeadkey_pywrap(PyObject *cobj, gaead_key *k) | |
bebf03ab MW |
888 | { |
889 | gaeadkey_pyobj *gk; | |
890 | ||
891 | if (!cobj) cobj = gcaead_pywrap((/*unconst*/ gcaead *)GAEAD_CLASS(k)); | |
892 | else Py_INCREF(cobj); | |
893 | gk = PyObject_NEW(gaeadkey_pyobj, (PyTypeObject *)cobj); | |
894 | gk->k = k; | |
895 | return ((PyObject *)gk); | |
896 | } | |
897 | ||
898 | static PyObject *gaeadkey_pynew(PyTypeObject *ty, | |
899 | PyObject *arg, PyObject *kw) | |
900 | { | |
901 | static const char *const kwlist[] = { "k", 0 }; | |
67c75893 | 902 | struct bin k; |
bebf03ab | 903 | |
67c75893 | 904 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&:new", KWLIST, convbin, &k)) |
bebf03ab | 905 | goto end; |
67c75893 | 906 | if (keysz(k.sz, GCAEAD_AEC(ty)->keysz) != k.sz) VALERR("bad key length"); |
bebf03ab | 907 | return (gaeadkey_pywrap((PyObject *)ty, |
67c75893 | 908 | GAEAD_KEY(GCAEAD_AEC(ty), k.p, k.sz))); |
bebf03ab MW |
909 | end: |
910 | return (0); | |
911 | } | |
912 | ||
c6e89d48 | 913 | static PyObject *gcaead_pywrap(gcaead *aec) |
bebf03ab MW |
914 | { |
915 | gcaead_pyobj *gck; | |
916 | gcaeadaad_pyobj *gca; | |
917 | gcaeadenc_pyobj *gce; | |
918 | gcaeaddec_pyobj *gcd; | |
919 | ||
920 | #define MKTYPE(obj, thing, newfn, namefmt) do { \ | |
921 | (obj) = newtype(gcaead_pytype, 0, 0); \ | |
2135a6d3 MW |
922 | (obj)->ty.ht_name = TEXT_FORMAT(namefmt, aec->name); \ |
923 | (obj)->ty.ht_type.tp_name = TEXT_PTR((obj)->ty.ht_name); \ | |
bebf03ab MW |
924 | (obj)->ty.ht_type.tp_basicsize = sizeof(gaead##thing##_pyobj); \ |
925 | (obj)->ty.ht_type.tp_base = gaead##thing##_pytype; \ | |
926 | Py_INCREF(gaead##thing##_pytype); \ | |
927 | (obj)->ty.ht_type.tp_flags = \ | |
928 | (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HEAPTYPE); \ | |
929 | (obj)->ty.ht_type.tp_alloc = PyType_GenericAlloc; \ | |
930 | (obj)->ty.ht_type.tp_free = 0; \ | |
931 | (obj)->ty.ht_type.tp_new = newfn; \ | |
932 | typeready(&(obj)->ty.ht_type); \ | |
933 | } while (0) | |
934 | ||
935 | MKTYPE(gck, key, gaeadkey_pynew, "%s(key)"); | |
936 | MKTYPE(gca, aad, abstract_pynew, "%s(aad-hash)"); | |
937 | MKTYPE(gce, enc, abstract_pynew, "%s(encrypt)"); | |
938 | MKTYPE(gcd, dec, abstract_pynew, "%s(decrypt)"); | |
939 | ||
940 | #undef MKTYPE | |
941 | ||
942 | gck->aec = aec; gck->aad = gca; gck->enc = gce; gck->dec = gcd; | |
943 | gca->key = gce->key = gcd->key = gck; | |
944 | return ((PyObject *)gck); | |
945 | } | |
946 | ||
947 | static void gaeadkey_pydealloc(PyObject *me) | |
2a448f86 | 948 | { GAEAD_DESTROY(GAEADKEY_K(me)); Py_DECREF(Py_TYPE(me)); FREEOBJ(me); } |
bebf03ab MW |
949 | |
950 | static PyObject *gcaeget_name(PyObject *me, void *hunoz) | |
2135a6d3 | 951 | { return (TEXT_FROMSTR(GCAEAD_AEC(me)->name)); } |
bebf03ab MW |
952 | |
953 | static PyObject *gcaeget_keysz(PyObject *me, void *hunoz) | |
954 | { return (keysz_pywrap(GCAEAD_AEC(me)->keysz)); } | |
955 | ||
956 | static PyObject *gcaeget_noncesz(PyObject *me, void *hunoz) | |
957 | { return (keysz_pywrap(GCAEAD_AEC(me)->noncesz)); } | |
958 | ||
959 | static PyObject *gcaeget_tagsz(PyObject *me, void *hunoz) | |
960 | { return (keysz_pywrap(GCAEAD_AEC(me)->tagsz)); } | |
961 | ||
962 | static PyObject *gcaeget_blksz(PyObject *me, void *hunoz) | |
963 | { return (PyInt_FromLong(GCAEAD_AEC(me)->blksz)); } | |
964 | ||
965 | static PyObject *gcaeget_bufsz(PyObject *me, void *hunoz) | |
966 | { return (PyInt_FromLong(GCAEAD_AEC(me)->bufsz)); } | |
967 | ||
968 | static PyObject *gcaeget_ohd(PyObject *me, void *hunoz) | |
969 | { return (PyInt_FromLong(GCAEAD_AEC(me)->ohd)); } | |
970 | ||
971 | static PyObject *gcaeget_flags(PyObject *me, void *hunoz) | |
972 | { return (PyInt_FromLong(GCAEAD_AEC(me)->f)); } | |
973 | ||
c90f712e | 974 | static const PyGetSetDef gcaead_pygetset[] = { |
bebf03ab | 975 | #define GETSETNAME(op, name) gcae##op##_##name |
d96c882e MW |
976 | GET (keysz, "AEC.keysz -> acceptable key sizes") |
977 | GET (noncesz, "AEC.noncesz -> acceptable nonce sizes") | |
978 | GET (tagsz, "AEC.tagsz -> acceptable tag sizes") | |
979 | GET (blksz, "AEC.blksz -> block size, or zero") | |
980 | GET (bufsz, "AEC.bufsz -> amount of data buffered internally") | |
981 | GET (ohd, "AEC.ohd -> maximum encryption overhead") | |
982 | GET (name, "AEC.name -> name of this kind of AEAD scheme") | |
983 | GET (flags, "AEC.flags -> mask of `AEADF_...' flags") | |
bebf03ab MW |
984 | #undef GETSETNAME |
985 | { 0 } | |
986 | }; | |
987 | ||
91e56f06 | 988 | static PyObject *gaekmeth_aad(PyObject *me) |
bebf03ab MW |
989 | { |
990 | const gaead_key *k = GAEADKEY_K(me); | |
991 | PyObject *rc = 0; | |
992 | ||
bebf03ab MW |
993 | if (k->ops->c->f&AEADF_AADNDEP) |
994 | VALERR("aad must be associated with enc/dec op"); | |
2a448f86 | 995 | rc = gaeadaad_pywrap((PyObject *)GCAEAD_AAD(Py_TYPE(me)), |
bebf03ab MW |
996 | GAEAD_AAD(k), 0, 0); |
997 | end: | |
998 | return (rc); | |
999 | } | |
1000 | ||
1001 | static int check_aead_encdec(const gcaead *aec, unsigned *f_out, size_t nsz, | |
1002 | PyObject *hszobj, size_t *hsz_out, | |
1003 | PyObject *mszobj, size_t *msz_out, | |
1004 | PyObject *tszobj, size_t *tsz_out) | |
1005 | { | |
1006 | unsigned f = 0, miss; | |
1007 | int rc = -1; | |
1008 | ||
1009 | if (hszobj != Py_None) | |
1010 | { f |= AEADF_PCHSZ; if (!convszt(hszobj, hsz_out)) goto end; } | |
1011 | if (mszobj != Py_None) | |
1012 | { f |= AEADF_PCMSZ; if (!convszt(mszobj, msz_out)) goto end; } | |
1013 | if (tszobj != Py_None) | |
1014 | { f |= AEADF_PCTSZ; if (!convszt(tszobj, tsz_out)) goto end; } | |
1015 | miss = aec->f&~f; | |
1016 | if (miss&AEADF_PCHSZ) VALERR("header length precommitment required"); | |
1017 | if (miss&AEADF_PCMSZ) VALERR("message length precommitment required"); | |
1018 | if (miss&AEADF_PCTSZ) VALERR("tag length precommitment required"); | |
1019 | if (keysz(nsz, aec->noncesz) != nsz) VALERR("bad nonce length"); | |
1020 | if (tszobj != Py_None && keysz(*tsz_out, aec->tagsz) != *tsz_out) | |
1021 | VALERR("bad tag length"); | |
1022 | *f_out = f | aec->f; rc = 0; | |
1023 | end: | |
1024 | return (rc); | |
1025 | } | |
1026 | ||
1027 | static PyObject *gaekmeth_enc(PyObject *me, PyObject *arg, PyObject *kw) | |
1028 | { | |
1029 | static const char *const kwlist[] = { "nonce", "hsz", "msz", "tsz", 0 }; | |
1030 | const gaead_key *k = GAEADKEY_K(me); | |
1031 | gaead_enc *e; | |
1032 | PyObject *rc = 0; | |
67c75893 | 1033 | struct bin n; |
bebf03ab MW |
1034 | PyObject *hszobj = Py_None, *mszobj = Py_None, *tszobj = Py_None; |
1035 | size_t hsz = 0, msz = 0, tsz = 0; | |
1036 | unsigned f; | |
1037 | ||
67c75893 MW |
1038 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|OOO:enc", KWLIST, |
1039 | convbin, &n, &hszobj, &mszobj, &tszobj)) | |
bebf03ab | 1040 | goto end; |
67c75893 | 1041 | if (check_aead_encdec(k->ops->c, &f, n.sz, |
bebf03ab MW |
1042 | hszobj, &hsz, mszobj, &msz, tszobj, &tsz)) |
1043 | goto end; | |
67c75893 | 1044 | e = GAEAD_ENC(GAEADKEY_K(me), n.p, n.sz, hsz, msz, tsz); |
bebf03ab | 1045 | if (!e) VALERR("bad aead parameter combination"); |
2a448f86 | 1046 | rc = gaeadenc_pywrap((PyObject *)GCAEAD_ENC(Py_TYPE(me)), |
bebf03ab MW |
1047 | e, f, hsz, msz, tsz); |
1048 | end: | |
1049 | return (rc); | |
1050 | } | |
1051 | ||
1052 | static PyObject *gaekmeth_dec(PyObject *me, PyObject *arg, PyObject *kw) | |
1053 | { | |
1054 | static const char *const kwlist[] = { "nonce", "hsz", "csz", "tsz", 0 }; | |
1055 | const gaead_key *k = GAEADKEY_K(me); | |
1056 | gaead_dec *d; | |
1057 | PyObject *rc = 0; | |
67c75893 | 1058 | struct bin n; |
bebf03ab MW |
1059 | PyObject *hszobj = Py_None, *cszobj = Py_None, *tszobj = Py_None; |
1060 | size_t hsz = 0, csz = 0, tsz = 0; | |
1061 | unsigned f; | |
1062 | ||
67c75893 MW |
1063 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|OOO:dec", KWLIST, |
1064 | convbin, &n, &hszobj, &cszobj, &tszobj)) | |
bebf03ab | 1065 | goto end; |
67c75893 | 1066 | if (check_aead_encdec(k->ops->c, &f, n.sz, |
bebf03ab MW |
1067 | hszobj, &hsz, cszobj, &csz, tszobj, &tsz)) |
1068 | goto end; | |
67c75893 | 1069 | d = GAEAD_DEC(GAEADKEY_K(me), n.p, n.sz, hsz, csz, tsz); |
bebf03ab | 1070 | if (!d) VALERR("bad aead parameter combination"); |
2a448f86 | 1071 | rc = gaeaddec_pywrap((PyObject *)GCAEAD_DEC(Py_TYPE(me)), |
bebf03ab MW |
1072 | d, f, hsz, csz, tsz); |
1073 | end: | |
1074 | return (rc); | |
1075 | } | |
1076 | ||
c90f712e | 1077 | static const PyMethodDef gaeadkey_pymethods[] = { |
bebf03ab | 1078 | #define METHNAME(name) gaekmeth_##name |
91e56f06 | 1079 | NAMETH(aad, "KEY.aad() -> AAD") |
d96c882e MW |
1080 | KWMETH(enc, "KEY.enc(NONCE, [hsz], [msz], [tsz]) -> ENC") |
1081 | KWMETH(dec, "KEY.dec(NONCE, [hsz], [csz], [tsz]) -> DEC") | |
bebf03ab MW |
1082 | #undef METHNAME |
1083 | { 0 } | |
1084 | }; | |
1085 | ||
c6e89d48 MW |
1086 | static PyObject *gaeadaad_pywrap(PyObject *cobj, gaead_aad *a, |
1087 | unsigned f, size_t hsz) | |
bebf03ab MW |
1088 | { |
1089 | gaeadaad_pyobj *ga; | |
1090 | ||
1091 | assert(cobj); Py_INCREF(cobj); | |
1092 | ga = PyObject_NEW(gaeadaad_pyobj, (PyTypeObject *)cobj); | |
1093 | ga->a = a; ga->f = f; ga->hsz = hsz; ga->hlen = 0; | |
1094 | return ((PyObject *)ga); | |
1095 | } | |
1096 | ||
1097 | static void gaeadaad_pydealloc(PyObject *me) | |
1098 | { | |
1099 | gaeadaad_pyobj *ga = (gaeadaad_pyobj *)me; | |
1100 | ||
1101 | if (ga->a) GAEAD_DESTROY(ga->a); | |
2a448f86 | 1102 | Py_DECREF(Py_TYPE(me)); FREEOBJ(me); |
bebf03ab MW |
1103 | } |
1104 | ||
1105 | static int gaea_check(PyObject *me) | |
1106 | { | |
1107 | gaeadaad_pyobj *ga = (gaeadaad_pyobj *)me; | |
1108 | int rc = -1; | |
1109 | ||
1110 | if ((ga->f&AEADF_DEAD) || !ga->a) VALERR("aad object no longer active"); | |
1111 | rc = 0; | |
1112 | end: | |
1113 | return (rc); | |
1114 | } | |
1115 | ||
1116 | static void gaea_invalidate(gaeadaad_pyobj *ga) | |
1117 | { if (ga) ga->f |= AEADF_DEAD; } | |
1118 | ||
1119 | static void gaea_sever(gaeadaad_pyobj **ga_inout) | |
1120 | { | |
1121 | gaeadaad_pyobj *ga = *ga_inout; | |
1122 | if (ga) { ga->f |= AEADF_DEAD; ga->a = 0; Py_DECREF(ga); *ga_inout = 0; } | |
1123 | } | |
1124 | ||
1125 | static PyObject *gaeaget_hsz(PyObject *me, void *hunoz) | |
1126 | { | |
1127 | if (gaea_check(me)) return (0); | |
1128 | else if (GAEADAAD_F(me)&AEADF_PCHSZ) return getulong(GAEADAAD_HSZ(me)); | |
1129 | else RETURN_NONE; | |
1130 | } | |
1131 | ||
1132 | static PyObject *gaeaget_hlen(PyObject *me, void *hunoz) | |
1133 | { return (gaea_check(me) ? 0 : getulong(GAEADAAD_HLEN(me))); } | |
1134 | ||
c90f712e | 1135 | static const PyGetSetDef gaeadaad_pygetset[] = { |
bebf03ab | 1136 | #define GETSETNAME(op, name) gaea##op##_##name |
d96c882e MW |
1137 | GET (hsz, "AAD.hsz -> precommitted header length or `None'") |
1138 | GET (hlen, "AAD.hlen -> header length so far") | |
bebf03ab MW |
1139 | #undef GETSETNAME |
1140 | { 0 } | |
1141 | }; | |
1142 | ||
91e56f06 | 1143 | static PyObject *gaeameth_copy(PyObject *me) |
bebf03ab MW |
1144 | { |
1145 | PyObject *rc = 0; | |
1146 | ||
bebf03ab MW |
1147 | if (gaea_check(me)) goto end; |
1148 | if (GAEADAAD_F(me)&AEADF_AADNDEP) | |
1149 | VALERR("can't duplicate nonce-dependent aad"); | |
2a448f86 | 1150 | rc = gaeadaad_pywrap((PyObject *)Py_TYPE(me), |
bebf03ab | 1151 | GAEAD_DUP(GAEADAAD_A(me)), 0, 0); |
de7abe02 | 1152 | GAEADAAD_HLEN(rc) = GAEADAAD_HLEN(me); |
bebf03ab MW |
1153 | end: |
1154 | return (rc); | |
1155 | } | |
1156 | ||
1157 | static int gaeadaad_hash(PyObject *me, const void *h, size_t hsz) | |
1158 | { | |
1159 | gaeadaad_pyobj *ga = (gaeadaad_pyobj *)me; | |
1160 | int rc = -1; | |
1161 | ||
1162 | if (gaea_check(me)) goto end; | |
1163 | if ((ga->f&AEADF_NOAAD) && hsz) | |
1164 | VALERR("header data not permitted"); | |
1165 | if ((ga->f&AEADF_PCHSZ) && hsz > ga->hsz - ga->hlen) | |
1166 | VALERR("too large for precommitted header length"); | |
1167 | GAEAD_HASH(ga->a, h, hsz); ga->hlen += hsz; | |
1168 | rc = 0; | |
1169 | end: | |
1170 | return (rc); | |
1171 | } | |
1172 | ||
bebf03ab MW |
1173 | static PyObject *gaeameth_hash(PyObject *me, PyObject *arg) |
1174 | { | |
67c75893 | 1175 | struct bin h; |
bebf03ab | 1176 | |
67c75893 MW |
1177 | if (!PyArg_ParseTuple(arg, "O&:hash", convbin, &h)) return (0); |
1178 | if (gaeadaad_hash(me, h.p, h.sz)) return (0); | |
bebf03ab MW |
1179 | RETURN_ME; |
1180 | } | |
1181 | ||
1182 | #define GAEAMETH_HASHU_(n, W, w) \ | |
1183 | static PyObject *gaeameth_hashu##w(PyObject *me, PyObject *arg) \ | |
1184 | { \ | |
1185 | uint##n x; octet b[SZ_##W]; \ | |
1186 | if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) return (0); \ | |
1187 | STORE##W(b, x); if (gaeadaad_hash(me, b, sizeof(b))) return (0); \ | |
1188 | RETURN_ME; \ | |
1189 | } | |
1190 | DOUINTCONV(GAEAMETH_HASHU_) | |
1191 | ||
1192 | #define GAEAMETH_HASHBUF_(n, W, w) \ | |
1193 | static PyObject *gaeameth_hashbuf##w(PyObject *me, PyObject *arg) \ | |
1194 | { \ | |
67c75893 MW |
1195 | struct bin in; octet b[SZ_##W]; \ |
1196 | if (!PyArg_ParseTuple(arg, "O&:hashbuf" #w, convbin, &in)) goto end; \ | |
e01ab3c9 | 1197 | if (in.sz > MASK##n) VALERR("too large"); \ |
67c75893 MW |
1198 | STORE##W(b, in.sz); if (gaeadaad_hash(me, b, sizeof(b))) goto end; \ |
1199 | if (gaeadaad_hash(me, in.p, in.sz)) goto end; \ | |
bebf03ab MW |
1200 | RETURN_ME; \ |
1201 | end: \ | |
1202 | return (0); \ | |
1203 | } | |
1204 | DOUINTCONV(GAEAMETH_HASHBUF_) | |
1205 | ||
1206 | static PyObject *gaeameth_hashstrz(PyObject *me, PyObject *arg) | |
1207 | { | |
1208 | char *p; | |
1209 | if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0); | |
1210 | if (gaeadaad_hash(me, p, strlen(p) + 1)) return (0); | |
1211 | RETURN_ME; | |
1212 | } | |
1213 | ||
c90f712e | 1214 | static const PyMethodDef gaeadaad_pymethods[] = { |
bebf03ab | 1215 | #define METHNAME(name) gaeameth_##name |
91e56f06 | 1216 | NAMETH(copy, "AAD.copy() -> AAD'") |
d96c882e | 1217 | METH (hash, "AAD.hash(H)") |
bebf03ab MW |
1218 | #define METHU_(n, W, w) METH(hashu##w, "AAD.hashu" #w "(WORD)") |
1219 | DOUINTCONV(METHU_) | |
1220 | #undef METHU_ | |
1221 | #define METHBUF_(n, W, w) METH(hashbuf##w, "AAD.hashbuf" #w "(BYTES)") | |
1222 | DOUINTCONV(METHBUF_) | |
1223 | #undef METHBUF_ | |
d96c882e | 1224 | METH (hashstrz, "AAD.hashstrz(STRING)") |
bebf03ab MW |
1225 | #undef METHNAME |
1226 | { 0 } | |
1227 | }; | |
1228 | ||
c6e89d48 MW |
1229 | static PyObject *gaeadenc_pywrap(PyObject *cobj, gaead_enc *e, unsigned f, |
1230 | size_t hsz, size_t msz, size_t tsz) | |
bebf03ab MW |
1231 | { |
1232 | gaeadenc_pyobj *ge; | |
1233 | ||
1234 | assert(cobj); Py_INCREF(cobj); | |
1235 | ge = PyObject_NEW(gaeadenc_pyobj, (PyTypeObject *)cobj); | |
1236 | ge->e = e; ge->f = f; ge->hsz = hsz; ge->msz = msz; ge->tsz = tsz; | |
1237 | ge->aad = 0; ge->mlen = 0; | |
1238 | return ((PyObject *)ge); | |
1239 | } | |
1240 | ||
1241 | static void gaeadenc_pydealloc(PyObject *me) | |
1242 | { | |
1243 | gaeadenc_pyobj *ge = (gaeadenc_pyobj *)me; | |
1244 | ||
1245 | gaea_sever(&ge->aad); GAEAD_DESTROY(ge->e); | |
2a448f86 | 1246 | Py_DECREF(Py_TYPE(me)); FREEOBJ(me); |
bebf03ab MW |
1247 | } |
1248 | ||
1249 | static PyObject *gaeeget_hsz(PyObject *me, void *hunoz) | |
1250 | { | |
1251 | if (GAEADENC_F(me)&AEADF_PCHSZ) return getulong(GAEADENC_HSZ(me)); | |
1252 | else RETURN_NONE; | |
1253 | } | |
1254 | ||
1255 | static PyObject *gaeeget_msz(PyObject *me, void *hunoz) | |
1256 | { | |
1257 | if (GAEADENC_F(me)&AEADF_PCMSZ) return getulong(GAEADENC_MSZ(me)); | |
1258 | else RETURN_NONE; | |
1259 | } | |
1260 | ||
1261 | static PyObject *gaeeget_tsz(PyObject *me, void *hunoz) | |
1262 | { | |
1263 | if (GAEADENC_F(me)&AEADF_PCTSZ) return getulong(GAEADENC_TSZ(me)); | |
1264 | else RETURN_NONE; | |
1265 | } | |
1266 | ||
1267 | static PyObject *gaeeget_mlen(PyObject *me, void *hunoz) | |
1268 | { return getulong(GAEADENC_MLEN(me)); } | |
1269 | ||
c90f712e | 1270 | static const PyGetSetDef gaeadenc_pygetset[] = { |
bebf03ab | 1271 | #define GETSETNAME(op, name) gaee##op##_##name |
d96c882e MW |
1272 | GET (hsz, "ENC.hsz -> precommitted header length or `None'") |
1273 | GET (msz, "ENC.msz -> precommitted message length or `None'") | |
1274 | GET (tsz, "ENC.tsz -> precommitted tag length or `None'") | |
1275 | GET (mlen, "ENC.mlen -> message length so far") | |
bebf03ab MW |
1276 | #undef GETSETNAME |
1277 | { 0 } | |
1278 | }; | |
1279 | ||
91e56f06 | 1280 | static PyObject *gaeemeth_aad(PyObject *me) |
bebf03ab MW |
1281 | { |
1282 | gaeadenc_pyobj *ge = (gaeadenc_pyobj *)me; | |
1283 | PyObject *rc = 0; | |
1284 | ||
bebf03ab | 1285 | if (!(ge->f&AEADF_AADNDEP)) |
2a448f86 | 1286 | rc = gaeadaad_pywrap((PyObject *)GCAEADENC_KEY(Py_TYPE(ge))->aad, |
bebf03ab MW |
1287 | GAEAD_AAD(ge->e), 0, 0); |
1288 | else { | |
1289 | if ((ge->f&AEADF_AADFIRST) && ge->mlen) | |
1290 | VALERR("too late for aad"); | |
1291 | if (!ge->aad) | |
1292 | ge->aad = (gaeadaad_pyobj *) | |
2a448f86 | 1293 | gaeadaad_pywrap((PyObject *)GCAEADENC_KEY(Py_TYPE(ge))->aad, |
f77c6b68 MW |
1294 | GAEAD_AAD(ge->e), ge->f&(AEADF_PCHSZ | AEADF_NOAAD), |
1295 | ge->hsz); | |
bebf03ab MW |
1296 | Py_INCREF(ge->aad); |
1297 | rc = (PyObject *)ge->aad; | |
1298 | } | |
1299 | end: | |
1300 | return (rc); | |
1301 | } | |
1302 | ||
1303 | static PyObject *gaeemeth_reinit(PyObject *me, PyObject *arg, PyObject *kw) | |
1304 | { | |
1305 | static const char *const kwlist[] = { "nonce", "hsz", "msz", "tsz", 0 }; | |
1306 | gaeadenc_pyobj *ge = (gaeadenc_pyobj *)me; | |
67c75893 | 1307 | struct bin n; |
bebf03ab MW |
1308 | PyObject *hszobj = Py_None, *mszobj = Py_None, *tszobj = Py_None; |
1309 | size_t hsz = 0, msz = 0, tsz = 0; | |
1310 | unsigned f; | |
1311 | ||
67c75893 MW |
1312 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|OOO:enc", KWLIST, |
1313 | convbin, &n, &hszobj, &mszobj, &tszobj)) | |
bebf03ab | 1314 | goto end; |
67c75893 | 1315 | if (check_aead_encdec(ge->e->ops->c, &f, n.sz, |
bebf03ab MW |
1316 | hszobj, &hsz, mszobj, &msz, tszobj, &tsz)) |
1317 | goto end; | |
67c75893 | 1318 | if (GAEAD_REINIT(ge->e, n.p, n.sz, hsz, msz, tsz)) |
bebf03ab MW |
1319 | VALERR("bad aead parameter combination"); |
1320 | gaea_sever(&ge->aad); | |
1321 | ge->f = f; ge->hsz = hsz; ge->msz = msz; ge->tsz = tsz; | |
1322 | end: | |
1323 | return (0); | |
1324 | } | |
1325 | ||
1326 | static PyObject *gaeemeth_encrypt(PyObject *me, PyObject *arg) | |
1327 | { | |
1328 | gaeadenc_pyobj *ge = (gaeadenc_pyobj *)me; | |
67c75893 | 1329 | struct bin m; |
bebf03ab MW |
1330 | char *c = 0; size_t csz; buf b; |
1331 | int err; | |
1332 | PyObject *rc = 0; | |
1333 | ||
67c75893 | 1334 | if (!PyArg_ParseTuple(arg, "O&:encrypt", convbin, &m)) goto end; |
bebf03ab MW |
1335 | if (ge->f&AEADF_AADFIRST) { |
1336 | if ((ge->f&AEADF_PCHSZ) && (ge->aad ? ge->aad->hlen : 0) != ge->hsz) | |
1337 | VALERR("header doesn't match precommitted length"); | |
1338 | gaea_invalidate(ge->aad); | |
1339 | } | |
67c75893 | 1340 | if ((ge->f&AEADF_PCMSZ) && m.sz > ge->msz - ge->mlen) |
bebf03ab | 1341 | VALERR("too large for precommitted message length"); |
67c75893 MW |
1342 | csz = m.sz + ge->e->ops->c->bufsz; c = xmalloc(csz); buf_init(&b, c, csz); |
1343 | err = GAEAD_ENCRYPT(ge->e, m.p, m.sz, &b); assert(!err); (void)err; | |
1344 | buf_flip(&b); rc = bytestring_pywrapbuf(&b); ge->mlen += m.sz; | |
bebf03ab MW |
1345 | end: |
1346 | xfree(c); | |
1347 | return (rc); | |
1348 | } | |
1349 | ||
1350 | static PyObject *gaeemeth_done(PyObject *me, PyObject *arg, PyObject *kw) | |
1351 | { | |
1352 | static const char *const kwlist[] = { "tsz", "aad", 0 }; | |
1353 | gaeadenc_pyobj *ge = (gaeadenc_pyobj *)me; | |
1354 | PyObject *aad = Py_None; | |
1355 | char *c = 0; size_t csz; buf b; | |
1356 | PyObject *tszobj = Py_None; PyObject *tag; size_t tsz; | |
1357 | int err; | |
1358 | PyObject *rc = 0; | |
1359 | ||
1360 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|OO:done", KWLIST, | |
1361 | &tszobj, &aad)) | |
1362 | goto end; | |
1363 | if (tszobj != Py_None && !convszt(tszobj, &tsz)) goto end; | |
1364 | if (aad != Py_None && | |
1365 | !PyObject_TypeCheck(aad, | |
2a448f86 | 1366 | (PyTypeObject *)GCAEADENC_KEY(Py_TYPE(me))->aad)) |
bebf03ab MW |
1367 | TYERR("wanted aad"); |
1368 | if ((ge->f&AEADF_AADNDEP) && aad != Py_None && aad != (PyObject *)ge->aad) | |
1369 | VALERR("mismatched aad"); | |
1370 | if ((ge->f&AEADF_PCHSZ) && | |
1371 | (aad == Py_None ? 0 : GAEADAAD_HLEN(aad)) != ge->hsz) | |
1372 | VALERR("header doesn't match precommitted length"); | |
1373 | if ((ge->f&AEADF_PCMSZ) && ge->mlen != ge->msz) | |
1374 | VALERR("message doesn't match precommitted length"); | |
1375 | if (tszobj == Py_None) { | |
1376 | if (ge->f&AEADF_PCTSZ) tsz = ge->tsz; | |
1377 | else tsz = keysz(0, ge->e->ops->c->tagsz); | |
1378 | } else { | |
1379 | if ((ge->f&AEADF_PCTSZ) && tsz != ge->tsz) | |
1380 | VALERR("tag length doesn't match precommitted value"); | |
1381 | if (keysz(tsz, ge->e->ops->c->tagsz) != tsz) VALERR("bad tag length"); | |
1382 | } | |
1383 | csz = ge->e->ops->c->bufsz; c = xmalloc(csz); buf_init(&b, c, csz); | |
1384 | tag = bytestring_pywrap(0, tsz); | |
1385 | err = GAEAD_DONE(ge->e, aad == Py_None ? 0 : GAEADAAD_A(aad), &b, | |
2135a6d3 | 1386 | BIN_PTR(tag), tsz); |
bebf03ab MW |
1387 | assert(!err); (void)err; |
1388 | buf_flip(&b); rc = Py_BuildValue("NN", bytestring_pywrapbuf(&b), tag); | |
1389 | end: | |
1390 | xfree(c); | |
1391 | return (rc); | |
1392 | } | |
1393 | ||
c90f712e | 1394 | static const PyMethodDef gaeadenc_pymethods[] = { |
bebf03ab | 1395 | #define METHNAME(name) gaeemeth_##name |
91e56f06 | 1396 | NAMETH(aad, "ENC.aad() -> AAD") |
d96c882e MW |
1397 | KWMETH(reinit, "ENC.reinit(NONCE, [hsz], [msz], [tsz])") |
1398 | METH (encrypt, "ENC.encrypt(MSG) -> CT") | |
1399 | KWMETH(done, "ENC.done([tsz], [aad]) -> CT, TAG") | |
bebf03ab MW |
1400 | #undef METHNAME |
1401 | { 0 } | |
1402 | }; | |
1403 | ||
c6e89d48 MW |
1404 | static PyObject *gaeaddec_pywrap(PyObject *cobj, gaead_dec *d, unsigned f, |
1405 | size_t hsz, size_t csz, size_t tsz) | |
bebf03ab MW |
1406 | { |
1407 | gaeaddec_pyobj *gd; | |
1408 | assert(cobj); Py_INCREF(cobj); | |
1409 | gd = PyObject_NEW(gaeaddec_pyobj, (PyTypeObject *)cobj); | |
1410 | gd->d = d; gd->f = f; gd->hsz = hsz; gd->csz = csz; gd->tsz = tsz; | |
1411 | gd->aad = 0; gd->clen = 0; | |
1412 | return ((PyObject *)gd); | |
1413 | } | |
1414 | ||
1415 | static void gaeaddec_pydealloc(PyObject *me) | |
1416 | { | |
1417 | gaeaddec_pyobj *gd = (gaeaddec_pyobj *)me; | |
1418 | ||
1419 | gaea_sever(&gd->aad); GAEAD_DESTROY(GAEADDEC_D(me)); | |
2a448f86 | 1420 | Py_DECREF(Py_TYPE(me)); FREEOBJ(me); |
bebf03ab MW |
1421 | } |
1422 | ||
1423 | static PyObject *gaedget_hsz(PyObject *me, void *hunoz) | |
1424 | { | |
1425 | if (GAEADDEC_F(me)&AEADF_PCHSZ) return getulong(GAEADDEC_HSZ(me)); | |
1426 | else RETURN_NONE; | |
1427 | } | |
1428 | ||
1429 | static PyObject *gaedget_csz(PyObject *me, void *hunoz) | |
1430 | { | |
1431 | if (GAEADDEC_F(me)&AEADF_PCMSZ) return getulong(GAEADDEC_CSZ(me)); | |
1432 | else RETURN_NONE; | |
1433 | } | |
1434 | ||
1435 | static PyObject *gaedget_tsz(PyObject *me, void *hunoz) | |
1436 | { | |
1437 | if (GAEADDEC_F(me)&AEADF_PCTSZ) return getulong(GAEADDEC_TSZ(me)); | |
1438 | else RETURN_NONE; | |
1439 | } | |
1440 | ||
1441 | static PyObject *gaedget_clen(PyObject *me, void *hunoz) | |
1442 | { return getulong(GAEADDEC_CLEN(me)); } | |
1443 | ||
c90f712e | 1444 | static const PyGetSetDef gaeaddec_pygetset[] = { |
bebf03ab | 1445 | #define GETSETNAME(op, name) gaed##op##_##name |
d96c882e MW |
1446 | GET (hsz, "DEC.hsz -> precommitted header length or `None'") |
1447 | GET (csz, "DEC.csz -> precommitted ciphertext length or `None'") | |
1448 | GET (tsz, "DEC.tsz -> precommitted tag length or `None'") | |
1449 | GET (clen, "DEC.clen -> ciphertext length so far") | |
bebf03ab MW |
1450 | #undef GETSETNAME |
1451 | { 0 } | |
1452 | }; | |
1453 | ||
91e56f06 | 1454 | static PyObject *gaedmeth_aad(PyObject *me) |
bebf03ab MW |
1455 | { |
1456 | gaeaddec_pyobj *gd = (gaeaddec_pyobj *)me; | |
1457 | ||
bebf03ab | 1458 | if (!(gd->f&AEADF_AADNDEP)) |
2a448f86 | 1459 | return (gaeadaad_pywrap((PyObject *)GCAEADDEC_KEY(Py_TYPE(gd))->aad, |
bebf03ab MW |
1460 | GAEAD_AAD(gd->d), 0, 0)); |
1461 | else { | |
1462 | if (!gd->aad) | |
1463 | gd->aad = (gaeadaad_pyobj *) | |
2a448f86 | 1464 | gaeadaad_pywrap((PyObject *)GCAEADENC_KEY(Py_TYPE(gd))->aad, |
f77c6b68 MW |
1465 | GAEAD_AAD(gd->d), gd->f&(AEADF_PCHSZ | AEADF_NOAAD), |
1466 | gd->hsz); | |
bebf03ab MW |
1467 | Py_INCREF(gd->aad); |
1468 | return ((PyObject *)gd->aad); | |
1469 | } | |
1470 | } | |
1471 | ||
1472 | static PyObject *gaedmeth_reinit(PyObject *me, PyObject *arg, PyObject *kw) | |
1473 | { | |
1474 | static const char *const kwlist[] = { "nonce", "hsz", "csz", "tsz", 0 }; | |
1475 | gaeaddec_pyobj *gd = (gaeaddec_pyobj *)me; | |
67c75893 | 1476 | struct bin n; |
bebf03ab MW |
1477 | PyObject *hszobj = Py_None, *cszobj = Py_None, *tszobj = Py_None; |
1478 | size_t hsz = 0, csz = 0, tsz = 0; | |
1479 | unsigned f; | |
1480 | ||
67c75893 MW |
1481 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|OOO:enc", KWLIST, |
1482 | convbin, &n, &hszobj, &cszobj, &tszobj)) | |
bebf03ab | 1483 | goto end; |
67c75893 | 1484 | if (check_aead_encdec(gd->d->ops->c, &f, n.sz, |
bebf03ab MW |
1485 | hszobj, &hsz, cszobj, &csz, tszobj, &tsz)) |
1486 | goto end; | |
67c75893 | 1487 | if (GAEAD_REINIT(gd->d, n.p, n.sz, hsz, csz, tsz)) |
bebf03ab MW |
1488 | VALERR("bad aead parameter combination"); |
1489 | gaea_sever(&gd->aad); | |
1490 | gd->f = f; gd->hsz = hsz; gd->csz = csz; gd->tsz = tsz; | |
1491 | end: | |
1492 | return (0); | |
1493 | } | |
1494 | ||
1495 | static PyObject *gaedmeth_decrypt(PyObject *me, PyObject *arg) | |
1496 | { | |
1497 | gaeaddec_pyobj *gd = (gaeaddec_pyobj *)me; | |
67c75893 | 1498 | struct bin c; |
bebf03ab MW |
1499 | char *m = 0; size_t msz; buf b; |
1500 | int err; | |
1501 | PyObject *rc = 0; | |
1502 | ||
67c75893 | 1503 | if (!PyArg_ParseTuple(arg, "O&:decrypt", convbin, &c)) goto end; |
bebf03ab MW |
1504 | if (gd->f&AEADF_AADFIRST) { |
1505 | if ((gd->f&AEADF_PCHSZ) && (gd->aad ? gd->aad->hlen : 0) != gd->hsz) | |
1506 | VALERR("header doesn't match precommitted length"); | |
1507 | gaea_invalidate(gd->aad); | |
1508 | } | |
67c75893 | 1509 | if ((gd->f&AEADF_PCMSZ) && c.sz > gd->csz - gd->clen) |
bebf03ab | 1510 | VALERR("too large for precommitted message length"); |
67c75893 MW |
1511 | msz = c.sz + gd->d->ops->c->bufsz; m = xmalloc(msz); buf_init(&b, m, msz); |
1512 | err = GAEAD_DECRYPT(gd->d, c.p, c.sz, &b); assert(!err); (void)err; | |
1513 | buf_flip(&b); rc = bytestring_pywrapbuf(&b); gd->clen += c.sz; | |
bebf03ab MW |
1514 | end: |
1515 | xfree(m); | |
1516 | return (rc); | |
1517 | } | |
1518 | ||
1519 | static PyObject *gaedmeth_done(PyObject *me, PyObject *arg, PyObject *kw) | |
1520 | { | |
1521 | static const char *const kwlist[] = { "tag", "aad", 0 }; | |
1522 | gaeaddec_pyobj *gd = (gaeaddec_pyobj *)me; | |
1523 | PyObject *aad = Py_None; | |
67c75893 | 1524 | struct bin t; |
bebf03ab MW |
1525 | char *m = 0; size_t msz; buf b; |
1526 | int err; | |
1527 | PyObject *rc = 0; | |
1528 | ||
67c75893 MW |
1529 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O:done", KWLIST, |
1530 | convbin, &t, &aad)) | |
bebf03ab MW |
1531 | goto end; |
1532 | if (aad != Py_None && | |
1533 | !PyObject_TypeCheck(aad, | |
2a448f86 | 1534 | (PyTypeObject *)GCAEADENC_KEY(Py_TYPE(me))->aad)) |
bebf03ab MW |
1535 | TYERR("wanted aad"); |
1536 | if ((gd->f&AEADF_AADNDEP) && aad != Py_None && aad != (PyObject *)gd->aad) | |
1537 | VALERR("mismatched aad"); | |
1538 | if ((gd->f&AEADF_PCHSZ) && | |
1539 | (aad == Py_None ? 0 : GAEADAAD_HLEN(aad)) != gd->hsz) | |
1540 | VALERR("header doesn't match precommitted length"); | |
1541 | if ((gd->f&AEADF_PCMSZ) && gd->clen != gd->csz) | |
1542 | VALERR("message doesn't match precommitted length"); | |
67c75893 | 1543 | if ((gd->f&AEADF_PCTSZ) && t.sz != gd->tsz) |
bebf03ab | 1544 | VALERR("tag length doesn't match precommitted value"); |
67c75893 | 1545 | if (keysz(t.sz, gd->d->ops->c->tagsz) != t.sz) VALERR("bad tag length"); |
bebf03ab | 1546 | msz = gd->d->ops->c->bufsz; m = xmalloc(msz); buf_init(&b, m, msz); |
67c75893 MW |
1547 | err = GAEAD_DONE(gd->d, aad == Py_None ? 0 : GAEADAAD_A(aad), |
1548 | &b, t.p, t.sz); | |
bebf03ab MW |
1549 | assert(err >= 0); |
1550 | if (!err) VALERR("decryption failed"); | |
1551 | buf_flip(&b); rc = bytestring_pywrapbuf(&b); | |
1552 | end: | |
1553 | xfree(m); | |
1554 | return (rc); | |
1555 | } | |
1556 | ||
c90f712e | 1557 | static const PyMethodDef gaeaddec_pymethods[] = { |
bebf03ab | 1558 | #define METHNAME(name) gaedmeth_##name |
91e56f06 | 1559 | NAMETH(aad, "DEC.aad() -> AAD") |
d96c882e MW |
1560 | KWMETH(reinit, "DEC.reinit(NONCE, [hsz], [csz], [tsz])") |
1561 | METH (decrypt, "DEC.decrypt(CT) -> MSG") | |
1562 | KWMETH(done, "DEC.done(TAG, [aad]) -> MSG | None") | |
bebf03ab MW |
1563 | #undef METHNAME |
1564 | { 0 } | |
1565 | }; | |
1566 | ||
c263b05c | 1567 | static const PyTypeObject gcaead_pytype_skel = { |
591bf41b | 1568 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
bebf03ab MW |
1569 | "GCAEAD", /* @tp_name@ */ |
1570 | sizeof(gcaead_pyobj), /* @tp_basicsize@ */ | |
1571 | 0, /* @tp_itemsize@ */ | |
1572 | ||
1573 | 0, /* @tp_dealloc@ */ | |
1574 | 0, /* @tp_print@ */ | |
1575 | 0, /* @tp_getattr@ */ | |
1576 | 0, /* @tp_setattr@ */ | |
1577 | 0, /* @tp_compare@ */ | |
1578 | 0, /* @tp_repr@ */ | |
1579 | 0, /* @tp_as_number@ */ | |
1580 | 0, /* @tp_as_sequence@ */ | |
1581 | 0, /* @tp_as_mapping@ */ | |
1582 | 0, /* @tp_hash@ */ | |
1583 | 0, /* @tp_call@ */ | |
1584 | 0, /* @tp_str@ */ | |
1585 | 0, /* @tp_getattro@ */ | |
1586 | 0, /* @tp_setattro@ */ | |
1587 | 0, /* @tp_as_buffer@ */ | |
1588 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1589 | Py_TPFLAGS_BASETYPE, | |
1590 | ||
1591 | /* @tp_doc@ */ | |
d96c882e | 1592 | "Authenticated encryption (key) metaclass.", |
bebf03ab MW |
1593 | |
1594 | 0, /* @tp_traverse@ */ | |
1595 | 0, /* @tp_clear@ */ | |
1596 | 0, /* @tp_richcompare@ */ | |
1597 | 0, /* @tp_weaklistoffset@ */ | |
1598 | 0, /* @tp_iter@ */ | |
1599 | 0, /* @tp_iternext@ */ | |
1600 | 0, /* @tp_methods@ */ | |
1601 | 0, /* @tp_members@ */ | |
c90f712e | 1602 | PYGETSET(gcaead), /* @tp_getset@ */ |
bebf03ab MW |
1603 | 0, /* @tp_base@ */ |
1604 | 0, /* @tp_dict@ */ | |
1605 | 0, /* @tp_descr_get@ */ | |
1606 | 0, /* @tp_descr_set@ */ | |
1607 | 0, /* @tp_dictoffset@ */ | |
1608 | 0, /* @tp_init@ */ | |
1609 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1610 | abstract_pynew, /* @tp_new@ */ | |
1611 | 0, /* @tp_free@ */ | |
1612 | 0 /* @tp_is_gc@ */ | |
1613 | }; | |
1614 | ||
c263b05c | 1615 | static const PyTypeObject gaeadkey_pytype_skel = { |
591bf41b | 1616 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
bebf03ab MW |
1617 | "GAEKey", /* @tp_name@ */ |
1618 | sizeof(gaeadkey_pyobj), /* @tp_basicsize@ */ | |
1619 | 0, /* @tp_itemsize@ */ | |
1620 | ||
1621 | gaeadkey_pydealloc, /* @tp_dealloc@ */ | |
1622 | 0, /* @tp_print@ */ | |
1623 | 0, /* @tp_getattr@ */ | |
1624 | 0, /* @tp_setattr@ */ | |
1625 | 0, /* @tp_compare@ */ | |
1626 | 0, /* @tp_repr@ */ | |
1627 | 0, /* @tp_as_number@ */ | |
1628 | 0, /* @tp_as_sequence@ */ | |
1629 | 0, /* @tp_as_mapping@ */ | |
1630 | 0, /* @tp_hash@ */ | |
1631 | 0, /* @tp_call@ */ | |
1632 | 0, /* @tp_str@ */ | |
1633 | 0, /* @tp_getattro@ */ | |
1634 | 0, /* @tp_setattro@ */ | |
1635 | 0, /* @tp_as_buffer@ */ | |
1636 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1637 | Py_TPFLAGS_BASETYPE, | |
1638 | ||
1639 | /* @tp_doc@ */ | |
d96c882e | 1640 | "Authenticated encryption key.", |
bebf03ab MW |
1641 | |
1642 | 0, /* @tp_traverse@ */ | |
1643 | 0, /* @tp_clear@ */ | |
1644 | 0, /* @tp_richcompare@ */ | |
1645 | 0, /* @tp_weaklistoffset@ */ | |
1646 | 0, /* @tp_iter@ */ | |
1647 | 0, /* @tp_iternext@ */ | |
c90f712e | 1648 | PYMETHODS(gaeadkey), /* @tp_methods@ */ |
bebf03ab MW |
1649 | 0, /* @tp_members@ */ |
1650 | 0, /* @tp_getset@ */ | |
1651 | 0, /* @tp_base@ */ | |
1652 | 0, /* @tp_dict@ */ | |
1653 | 0, /* @tp_descr_get@ */ | |
1654 | 0, /* @tp_descr_set@ */ | |
1655 | 0, /* @tp_dictoffset@ */ | |
1656 | 0, /* @tp_init@ */ | |
1657 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1658 | abstract_pynew, /* @tp_new@ */ | |
1659 | 0, /* @tp_free@ */ | |
1660 | 0 /* @tp_is_gc@ */ | |
1661 | }; | |
1662 | ||
c263b05c | 1663 | static const PyTypeObject gcaeadaad_pytype_skel = { |
591bf41b | 1664 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
bebf03ab MW |
1665 | "GAEAADClass", /* @tp_name@ */ |
1666 | sizeof(gcaeadaad_pyobj), /* @tp_basicsize@ */ | |
1667 | 0, /* @tp_itemsize@ */ | |
1668 | ||
1669 | 0, /* @tp_dealloc@ */ | |
1670 | 0, /* @tp_print@ */ | |
1671 | 0, /* @tp_getattr@ */ | |
1672 | 0, /* @tp_setattr@ */ | |
1673 | 0, /* @tp_compare@ */ | |
1674 | 0, /* @tp_repr@ */ | |
1675 | 0, /* @tp_as_number@ */ | |
1676 | 0, /* @tp_as_sequence@ */ | |
1677 | 0, /* @tp_as_mapping@ */ | |
1678 | 0, /* @tp_hash@ */ | |
1679 | 0, /* @tp_call@ */ | |
1680 | 0, /* @tp_str@ */ | |
1681 | 0, /* @tp_getattro@ */ | |
1682 | 0, /* @tp_setattro@ */ | |
1683 | 0, /* @tp_as_buffer@ */ | |
1684 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1685 | Py_TPFLAGS_BASETYPE, | |
1686 | ||
1687 | /* @tp_doc@ */ | |
d96c882e | 1688 | "Authenticated encryption additional-data hash metaclass.", |
bebf03ab MW |
1689 | |
1690 | 0, /* @tp_traverse@ */ | |
1691 | 0, /* @tp_clear@ */ | |
1692 | 0, /* @tp_richcompare@ */ | |
1693 | 0, /* @tp_weaklistoffset@ */ | |
1694 | 0, /* @tp_iter@ */ | |
1695 | 0, /* @tp_iternext@ */ | |
1696 | 0, /* @tp_methods@ */ | |
1697 | 0, /* @tp_members@ */ | |
1698 | 0, /* @tp_getset@ */ | |
1699 | 0, /* @tp_base@ */ | |
1700 | 0, /* @tp_dict@ */ | |
1701 | 0, /* @tp_descr_get@ */ | |
1702 | 0, /* @tp_descr_set@ */ | |
1703 | 0, /* @tp_dictoffset@ */ | |
1704 | 0, /* @tp_init@ */ | |
1705 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1706 | abstract_pynew, /* @tp_new@ */ | |
1707 | 0, /* @tp_free@ */ | |
1708 | 0 /* @tp_is_gc@ */ | |
1709 | }; | |
1710 | ||
c263b05c | 1711 | static const PyTypeObject gaeadaad_pytype_skel = { |
591bf41b | 1712 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
bebf03ab MW |
1713 | "GAEAAD", /* @tp_name@ */ |
1714 | sizeof(gaeadaad_pyobj), /* @tp_basicsize@ */ | |
1715 | 0, /* @tp_itemsize@ */ | |
1716 | ||
1717 | gaeadaad_pydealloc, /* @tp_dealloc@ */ | |
1718 | 0, /* @tp_print@ */ | |
1719 | 0, /* @tp_getattr@ */ | |
1720 | 0, /* @tp_setattr@ */ | |
1721 | 0, /* @tp_compare@ */ | |
1722 | 0, /* @tp_repr@ */ | |
1723 | 0, /* @tp_as_number@ */ | |
1724 | 0, /* @tp_as_sequence@ */ | |
1725 | 0, /* @tp_as_mapping@ */ | |
1726 | 0, /* @tp_hash@ */ | |
1727 | 0, /* @tp_call@ */ | |
1728 | 0, /* @tp_str@ */ | |
1729 | 0, /* @tp_getattro@ */ | |
1730 | 0, /* @tp_setattro@ */ | |
1731 | 0, /* @tp_as_buffer@ */ | |
1732 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1733 | Py_TPFLAGS_BASETYPE, | |
1734 | ||
1735 | /* @tp_doc@ */ | |
d96c882e | 1736 | "Authenticated encryption AAD hash.", |
bebf03ab MW |
1737 | |
1738 | 0, /* @tp_traverse@ */ | |
1739 | 0, /* @tp_clear@ */ | |
1740 | 0, /* @tp_richcompare@ */ | |
1741 | 0, /* @tp_weaklistoffset@ */ | |
1742 | 0, /* @tp_iter@ */ | |
1743 | 0, /* @tp_iternext@ */ | |
c90f712e | 1744 | PYMETHODS(gaeadaad), /* @tp_methods@ */ |
bebf03ab | 1745 | 0, /* @tp_members@ */ |
c90f712e | 1746 | PYGETSET(gaeadaad), /* @tp_getset@ */ |
bebf03ab MW |
1747 | 0, /* @tp_base@ */ |
1748 | 0, /* @tp_dict@ */ | |
1749 | 0, /* @tp_descr_get@ */ | |
1750 | 0, /* @tp_descr_set@ */ | |
1751 | 0, /* @tp_dictoffset@ */ | |
1752 | 0, /* @tp_init@ */ | |
1753 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1754 | abstract_pynew, /* @tp_new@ */ | |
1755 | 0, /* @tp_free@ */ | |
1756 | 0 /* @tp_is_gc@ */ | |
1757 | }; | |
1758 | ||
c263b05c | 1759 | static const PyTypeObject gcaeadenc_pytype_skel = { |
591bf41b | 1760 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
bebf03ab MW |
1761 | "GAEEncClass", /* @tp_name@ */ |
1762 | sizeof(gcaeadenc_pyobj), /* @tp_basicsize@ */ | |
1763 | 0, /* @tp_itemsize@ */ | |
1764 | ||
1765 | 0, /* @tp_dealloc@ */ | |
1766 | 0, /* @tp_print@ */ | |
1767 | 0, /* @tp_getattr@ */ | |
1768 | 0, /* @tp_setattr@ */ | |
1769 | 0, /* @tp_compare@ */ | |
1770 | 0, /* @tp_repr@ */ | |
1771 | 0, /* @tp_as_number@ */ | |
1772 | 0, /* @tp_as_sequence@ */ | |
1773 | 0, /* @tp_as_mapping@ */ | |
1774 | 0, /* @tp_hash@ */ | |
1775 | 0, /* @tp_call@ */ | |
1776 | 0, /* @tp_str@ */ | |
1777 | 0, /* @tp_getattro@ */ | |
1778 | 0, /* @tp_setattro@ */ | |
1779 | 0, /* @tp_as_buffer@ */ | |
1780 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1781 | Py_TPFLAGS_BASETYPE, | |
1782 | ||
1783 | /* @tp_doc@ */ | |
d96c882e | 1784 | "Authenticated encryption operation metaclass.", |
bebf03ab MW |
1785 | |
1786 | 0, /* @tp_traverse@ */ | |
1787 | 0, /* @tp_clear@ */ | |
1788 | 0, /* @tp_richcompare@ */ | |
1789 | 0, /* @tp_weaklistoffset@ */ | |
1790 | 0, /* @tp_iter@ */ | |
1791 | 0, /* @tp_iternext@ */ | |
1792 | 0, /* @tp_methods@ */ | |
1793 | 0, /* @tp_members@ */ | |
1794 | 0, /* @tp_getset@ */ | |
1795 | 0, /* @tp_base@ */ | |
1796 | 0, /* @tp_dict@ */ | |
1797 | 0, /* @tp_descr_get@ */ | |
1798 | 0, /* @tp_descr_set@ */ | |
1799 | 0, /* @tp_dictoffset@ */ | |
1800 | 0, /* @tp_init@ */ | |
1801 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1802 | abstract_pynew, /* @tp_new@ */ | |
1803 | 0, /* @tp_free@ */ | |
1804 | 0 /* @tp_is_gc@ */ | |
1805 | }; | |
1806 | ||
c263b05c | 1807 | static const PyTypeObject gaeadenc_pytype_skel = { |
591bf41b | 1808 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
bebf03ab MW |
1809 | "GAEEnc", /* @tp_name@ */ |
1810 | sizeof(gaeadenc_pyobj), /* @tp_basicsize@ */ | |
1811 | 0, /* @tp_itemsize@ */ | |
1812 | ||
1813 | gaeadenc_pydealloc, /* @tp_dealloc@ */ | |
1814 | 0, /* @tp_print@ */ | |
1815 | 0, /* @tp_getattr@ */ | |
1816 | 0, /* @tp_setattr@ */ | |
1817 | 0, /* @tp_compare@ */ | |
1818 | 0, /* @tp_repr@ */ | |
1819 | 0, /* @tp_as_number@ */ | |
1820 | 0, /* @tp_as_sequence@ */ | |
1821 | 0, /* @tp_as_mapping@ */ | |
1822 | 0, /* @tp_hash@ */ | |
1823 | 0, /* @tp_call@ */ | |
1824 | 0, /* @tp_str@ */ | |
1825 | 0, /* @tp_getattro@ */ | |
1826 | 0, /* @tp_setattro@ */ | |
1827 | 0, /* @tp_as_buffer@ */ | |
1828 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1829 | Py_TPFLAGS_BASETYPE, | |
1830 | ||
1831 | /* @tp_doc@ */ | |
d96c882e | 1832 | "Authenticated encryption operation.", |
bebf03ab MW |
1833 | |
1834 | 0, /* @tp_traverse@ */ | |
1835 | 0, /* @tp_clear@ */ | |
1836 | 0, /* @tp_richcompare@ */ | |
1837 | 0, /* @tp_weaklistoffset@ */ | |
1838 | 0, /* @tp_iter@ */ | |
1839 | 0, /* @tp_iternext@ */ | |
c90f712e | 1840 | PYMETHODS(gaeadenc), /* @tp_methods@ */ |
bebf03ab | 1841 | 0, /* @tp_members@ */ |
c90f712e | 1842 | PYGETSET(gaeadenc), /* @tp_getset@ */ |
bebf03ab MW |
1843 | 0, /* @tp_base@ */ |
1844 | 0, /* @tp_dict@ */ | |
1845 | 0, /* @tp_descr_get@ */ | |
1846 | 0, /* @tp_descr_set@ */ | |
1847 | 0, /* @tp_dictoffset@ */ | |
1848 | 0, /* @tp_init@ */ | |
1849 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1850 | abstract_pynew, /* @tp_new@ */ | |
1851 | 0, /* @tp_free@ */ | |
1852 | 0 /* @tp_is_gc@ */ | |
1853 | }; | |
1854 | ||
c263b05c | 1855 | static const PyTypeObject gcaeaddec_pytype_skel = { |
591bf41b | 1856 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
bebf03ab MW |
1857 | "GAEDecClass", /* @tp_name@ */ |
1858 | sizeof(gcaeaddec_pyobj), /* @tp_basicsize@ */ | |
1859 | 0, /* @tp_itemsize@ */ | |
1860 | ||
1861 | 0, /* @tp_dealloc@ */ | |
1862 | 0, /* @tp_print@ */ | |
1863 | 0, /* @tp_getattr@ */ | |
1864 | 0, /* @tp_setattr@ */ | |
1865 | 0, /* @tp_compare@ */ | |
1866 | 0, /* @tp_repr@ */ | |
1867 | 0, /* @tp_as_number@ */ | |
1868 | 0, /* @tp_as_sequence@ */ | |
1869 | 0, /* @tp_as_mapping@ */ | |
1870 | 0, /* @tp_hash@ */ | |
1871 | 0, /* @tp_call@ */ | |
1872 | 0, /* @tp_str@ */ | |
1873 | 0, /* @tp_getattro@ */ | |
1874 | 0, /* @tp_setattro@ */ | |
1875 | 0, /* @tp_as_buffer@ */ | |
1876 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1877 | Py_TPFLAGS_BASETYPE, | |
1878 | ||
1879 | /* @tp_doc@ */ | |
d96c882e | 1880 | "Authenticated decryption operation metaclass.", |
bebf03ab MW |
1881 | |
1882 | 0, /* @tp_traverse@ */ | |
1883 | 0, /* @tp_clear@ */ | |
1884 | 0, /* @tp_richcompare@ */ | |
1885 | 0, /* @tp_weaklistoffset@ */ | |
1886 | 0, /* @tp_iter@ */ | |
1887 | 0, /* @tp_iternext@ */ | |
1888 | 0, /* @tp_methods@ */ | |
1889 | 0, /* @tp_members@ */ | |
1890 | 0, /* @tp_getset@ */ | |
1891 | 0, /* @tp_base@ */ | |
1892 | 0, /* @tp_dict@ */ | |
1893 | 0, /* @tp_descr_get@ */ | |
1894 | 0, /* @tp_descr_set@ */ | |
1895 | 0, /* @tp_dictoffset@ */ | |
1896 | 0, /* @tp_init@ */ | |
1897 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1898 | abstract_pynew, /* @tp_new@ */ | |
1899 | 0, /* @tp_free@ */ | |
1900 | 0 /* @tp_is_gc@ */ | |
1901 | }; | |
1902 | ||
c263b05c | 1903 | static const PyTypeObject gaeaddec_pytype_skel = { |
591bf41b | 1904 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
bebf03ab MW |
1905 | "GAEDec", /* @tp_name@ */ |
1906 | sizeof(gaeaddec_pyobj), /* @tp_basicsize@ */ | |
1907 | 0, /* @tp_itemsize@ */ | |
1908 | ||
1909 | gaeaddec_pydealloc, /* @tp_dealloc@ */ | |
1910 | 0, /* @tp_print@ */ | |
1911 | 0, /* @tp_getattr@ */ | |
1912 | 0, /* @tp_setattr@ */ | |
1913 | 0, /* @tp_compare@ */ | |
1914 | 0, /* @tp_repr@ */ | |
1915 | 0, /* @tp_as_number@ */ | |
1916 | 0, /* @tp_as_sequence@ */ | |
1917 | 0, /* @tp_as_mapping@ */ | |
1918 | 0, /* @tp_hash@ */ | |
1919 | 0, /* @tp_call@ */ | |
1920 | 0, /* @tp_str@ */ | |
1921 | 0, /* @tp_getattro@ */ | |
1922 | 0, /* @tp_setattro@ */ | |
1923 | 0, /* @tp_as_buffer@ */ | |
1924 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1925 | Py_TPFLAGS_BASETYPE, | |
1926 | ||
1927 | /* @tp_doc@ */ | |
d96c882e | 1928 | "Authenticated decryption operation.", |
bebf03ab MW |
1929 | |
1930 | 0, /* @tp_traverse@ */ | |
1931 | 0, /* @tp_clear@ */ | |
1932 | 0, /* @tp_richcompare@ */ | |
1933 | 0, /* @tp_weaklistoffset@ */ | |
1934 | 0, /* @tp_iter@ */ | |
1935 | 0, /* @tp_iternext@ */ | |
c90f712e | 1936 | PYMETHODS(gaeaddec), /* @tp_methods@ */ |
bebf03ab | 1937 | 0, /* @tp_members@ */ |
c90f712e | 1938 | PYGETSET(gaeaddec), /* @tp_getset@ */ |
bebf03ab MW |
1939 | 0, /* @tp_base@ */ |
1940 | 0, /* @tp_dict@ */ | |
1941 | 0, /* @tp_descr_get@ */ | |
1942 | 0, /* @tp_descr_set@ */ | |
1943 | 0, /* @tp_dictoffset@ */ | |
1944 | 0, /* @tp_init@ */ | |
1945 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1946 | abstract_pynew, /* @tp_new@ */ | |
1947 | 0, /* @tp_free@ */ | |
1948 | 0 /* @tp_is_gc@ */ | |
1949 | }; | |
1950 | ||
d7ab1bab | 1951 | /*----- Hash functions ----------------------------------------------------*/ |
1952 | ||
c6e89d48 MW |
1953 | PyTypeObject *gchash_pytype; |
1954 | static PyTypeObject *ghash_pytype; | |
1955 | PyObject *sha_pyobj, *has160_pyobj; | |
1956 | ||
1957 | typedef struct ghash_pyobj { | |
1958 | PyObject_HEAD | |
1959 | ghash *h; | |
1960 | } ghash_pyobj; | |
1961 | ||
1962 | #define GHASH_PYCHECK(o) PyObject_TypeCheck((o), ghash_pytype) | |
1963 | #define GHASH_H(o) (((ghash_pyobj *)(o))->h) | |
d7ab1bab | 1964 | |
1965 | CONVFUNC(gchash, gchash *, GCHASH_CH) | |
1966 | CONVFUNC(ghash, ghash *, GHASH_H) | |
1967 | ||
1968 | static PyObject *ghash_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
1969 | { | |
827f89d7 MW |
1970 | static const char *const kwlist[] = { 0 }; |
1971 | if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", KWLIST)) | |
d7ab1bab | 1972 | goto end; |
c41d0371 | 1973 | return (ghash_pywrap((PyObject *)ty, GH_INIT(GCHASH_CH(ty)))); |
d7ab1bab | 1974 | end: |
b2687a0a | 1975 | return (0); |
d7ab1bab | 1976 | } |
1977 | ||
c6e89d48 | 1978 | static PyObject *gchash_pywrap(gchash *ch) |
d7ab1bab | 1979 | { |
df9f8366 | 1980 | gchash_pyobj *g = newtype(gchash_pytype, 0, ch->name); |
d7ab1bab | 1981 | g->ch = ch; |
24b3d57b MW |
1982 | g->ty.ht_type.tp_basicsize = sizeof(ghash_pyobj); |
1983 | g->ty.ht_type.tp_base = ghash_pytype; | |
d7ab1bab | 1984 | Py_INCREF(ghash_pytype); |
24b3d57b MW |
1985 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
1986 | Py_TPFLAGS_BASETYPE | | |
1987 | Py_TPFLAGS_HEAPTYPE); | |
1988 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
1989 | g->ty.ht_type.tp_free = 0; | |
1990 | g->ty.ht_type.tp_new = ghash_pynew; | |
dc075750 | 1991 | typeready(&g->ty.ht_type); |
d7ab1bab | 1992 | return ((PyObject *)g); |
1993 | } | |
1994 | ||
c41d0371 | 1995 | PyObject *ghash_pywrap(PyObject *cobj, ghash *h) |
d7ab1bab | 1996 | { |
1997 | ghash_pyobj *g; | |
1998 | if (!cobj) cobj = gchash_pywrap((/*unconst*/ gchash *)GH_CLASS(h)); | |
1999 | else Py_INCREF(cobj); | |
2000 | g = PyObject_NEW(ghash_pyobj, (PyTypeObject *)cobj); | |
2001 | g->h = h; | |
b2687a0a | 2002 | return ((PyObject *)g); |
d7ab1bab | 2003 | } |
2004 | ||
2005 | static void ghash_pydealloc(PyObject *me) | |
2006 | { | |
c41d0371 | 2007 | GH_DESTROY(GHASH_H(me)); |
2a448f86 | 2008 | Py_DECREF(Py_TYPE(me)); |
3aa33042 | 2009 | FREEOBJ(me); |
d7ab1bab | 2010 | } |
2011 | ||
2012 | static PyObject *gchget_name(PyObject *me, void *hunoz) | |
2135a6d3 | 2013 | { return (TEXT_FROMSTR(GCHASH_CH(me)->name)); } |
d7ab1bab | 2014 | |
2015 | static PyObject *gchget_hashsz(PyObject *me, void *hunoz) | |
2016 | { return (PyInt_FromLong(GCHASH_CH(me)->hashsz)); } | |
2017 | ||
2018 | static PyObject *gchget_bufsz(PyObject *me, void *hunoz) | |
2019 | { return (PyInt_FromLong(GCHASH_CH(me)->bufsz)); } | |
2020 | ||
91e56f06 | 2021 | static PyObject *ghmeth_copy(PyObject *me) |
2a448f86 | 2022 | { return (ghash_pywrap((PyObject *)Py_TYPE(me), GH_COPY(GHASH_H(me)))); } |
cfe80e51 | 2023 | |
d7ab1bab | 2024 | static PyObject *ghmeth_hash(PyObject *me, PyObject *arg) |
2025 | { | |
67c75893 MW |
2026 | struct bin m; |
2027 | if (!PyArg_ParseTuple(arg, "O&:hash", convbin, &m)) return (0); | |
2028 | GH_HASH(GHASH_H(me), m.p, m.sz); | |
d7ab1bab | 2029 | RETURN_ME; |
2030 | } | |
2031 | ||
46e6ad89 | 2032 | #define GHMETH_HASHU_(n, W, w) \ |
2033 | static PyObject *ghmeth_hashu##w(PyObject *me, PyObject *arg) \ | |
2034 | { \ | |
2035 | uint##n x; \ | |
0e5c668c | 2036 | if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) return (0); \ |
46e6ad89 | 2037 | GH_HASHU##W(GHASH_H(me), x); \ |
2038 | RETURN_ME; \ | |
46e6ad89 | 2039 | } |
2040 | DOUINTCONV(GHMETH_HASHU_) | |
2041 | ||
2042 | #define GHMETH_HASHBUF_(n, W, w) \ | |
2043 | static PyObject *ghmeth_hashbuf##w(PyObject *me, PyObject *arg) \ | |
2044 | { \ | |
67c75893 MW |
2045 | struct bin in; \ |
2046 | if (!PyArg_ParseTuple(arg, "O&:hashbuf" #w, convbin, &in)) goto end; \ | |
e01ab3c9 | 2047 | if (in.sz > MASK##n) VALERR("too large"); \ |
67c75893 | 2048 | GH_HASHBUF##W(GHASH_H(me), in.p, in.sz); \ |
46e6ad89 | 2049 | RETURN_ME; \ |
2050 | end: \ | |
2051 | return (0); \ | |
2052 | } | |
2053 | DOUINTCONV(GHMETH_HASHBUF_) | |
2054 | ||
2055 | static PyObject *ghmeth_hashstrz(PyObject *me, PyObject *arg) | |
2056 | { | |
2057 | char *p; | |
2058 | if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0); | |
2059 | GH_HASHSTRZ(GHASH_H(me), p); | |
2060 | RETURN_ME; | |
2061 | } | |
2062 | ||
91e56f06 | 2063 | static PyObject *ghmeth_done(PyObject *me) |
07bcd768 MW |
2064 | { |
2065 | ghash *g; | |
2066 | PyObject *rc; | |
07bcd768 MW |
2067 | g = GH_COPY(GHASH_H(me)); |
2068 | rc = bytestring_pywrap(0, g->ops->c->hashsz); | |
2135a6d3 | 2069 | GH_DONE(g, BIN_PTR(rc)); |
07bcd768 MW |
2070 | GH_DESTROY(g); |
2071 | return (rc); | |
2072 | } | |
2073 | ||
c90f712e | 2074 | static const PyGetSetDef gchash_pygetset[] = { |
07bcd768 | 2075 | #define GETSETNAME(op, name) gch##op##_##name |
d96c882e MW |
2076 | GET (bufsz, "CH.bufsz -> hash buffer size, or zero") |
2077 | GET (hashsz, "CH.hashsz -> hash output size") | |
2078 | GET (name, "CH.name -> name of this kind of hash") | |
07bcd768 MW |
2079 | #undef GETSETNAME |
2080 | { 0 } | |
2081 | }; | |
2082 | ||
c90f712e | 2083 | static const PyMethodDef ghash_pymethods[] = { |
d7ab1bab | 2084 | #define METHNAME(name) ghmeth_##name |
91e56f06 | 2085 | NAMETH(copy, "H.copy() -> HH") |
d96c882e | 2086 | METH (hash, "H.hash(M)") |
46e6ad89 | 2087 | #define METHU_(n, W, w) METH(hashu##w, "H.hashu" #w "(WORD)") |
2088 | DOUINTCONV(METHU_) | |
07bcd768 | 2089 | #undef METHU_ |
46e6ad89 | 2090 | #define METHBUF_(n, W, w) METH(hashbuf##w, "H.hashbuf" #w "(BYTES)") |
2091 | DOUINTCONV(METHBUF_) | |
07bcd768 | 2092 | #undef METHBUF_ |
d96c882e | 2093 | METH (hashstrz, "H.hashstrz(STRING)") |
91e56f06 | 2094 | NAMETH(done, "H.done() -> HASH") |
d7ab1bab | 2095 | #undef METHNAME |
2096 | { 0 } | |
2097 | }; | |
2098 | ||
c263b05c | 2099 | static const PyTypeObject gchash_pytype_skel = { |
591bf41b | 2100 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
c461c9b3 | 2101 | "GCHash", /* @tp_name@ */ |
d7ab1bab | 2102 | sizeof(gchash_pyobj), /* @tp_basicsize@ */ |
2103 | 0, /* @tp_itemsize@ */ | |
2104 | ||
2105 | 0, /* @tp_dealloc@ */ | |
2106 | 0, /* @tp_print@ */ | |
2107 | 0, /* @tp_getattr@ */ | |
2108 | 0, /* @tp_setattr@ */ | |
2109 | 0, /* @tp_compare@ */ | |
2110 | 0, /* @tp_repr@ */ | |
2111 | 0, /* @tp_as_number@ */ | |
2112 | 0, /* @tp_as_sequence@ */ | |
2113 | 0, /* @tp_as_mapping@ */ | |
2114 | 0, /* @tp_hash@ */ | |
2115 | 0, /* @tp_call@ */ | |
2116 | 0, /* @tp_str@ */ | |
2117 | 0, /* @tp_getattro@ */ | |
2118 | 0, /* @tp_setattro@ */ | |
2119 | 0, /* @tp_as_buffer@ */ | |
2120 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
2121 | Py_TPFLAGS_BASETYPE, | |
2122 | ||
2123 | /* @tp_doc@ */ | |
d96c882e | 2124 | "Hash function metaclass.", |
d7ab1bab | 2125 | |
2126 | 0, /* @tp_traverse@ */ | |
2127 | 0, /* @tp_clear@ */ | |
2128 | 0, /* @tp_richcompare@ */ | |
2129 | 0, /* @tp_weaklistoffset@ */ | |
2130 | 0, /* @tp_iter@ */ | |
963a6148 | 2131 | 0, /* @tp_iternext@ */ |
d7ab1bab | 2132 | 0, /* @tp_methods@ */ |
2133 | 0, /* @tp_members@ */ | |
c90f712e | 2134 | PYGETSET(gchash), /* @tp_getset@ */ |
d7ab1bab | 2135 | 0, /* @tp_base@ */ |
2136 | 0, /* @tp_dict@ */ | |
2137 | 0, /* @tp_descr_get@ */ | |
2138 | 0, /* @tp_descr_set@ */ | |
2139 | 0, /* @tp_dictoffset@ */ | |
2140 | 0, /* @tp_init@ */ | |
2141 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
2142 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 2143 | 0, /* @tp_free@ */ |
d7ab1bab | 2144 | 0 /* @tp_is_gc@ */ |
2145 | }; | |
2146 | ||
c263b05c | 2147 | static const PyTypeObject ghash_pytype_skel = { |
591bf41b | 2148 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
c461c9b3 | 2149 | "GHash", /* @tp_name@ */ |
d7ab1bab | 2150 | sizeof(ghash_pyobj), /* @tp_basicsize@ */ |
2151 | 0, /* @tp_itemsize@ */ | |
2152 | ||
2153 | ghash_pydealloc, /* @tp_dealloc@ */ | |
2154 | 0, /* @tp_print@ */ | |
2155 | 0, /* @tp_getattr@ */ | |
2156 | 0, /* @tp_setattr@ */ | |
2157 | 0, /* @tp_compare@ */ | |
2158 | 0, /* @tp_repr@ */ | |
2159 | 0, /* @tp_as_number@ */ | |
2160 | 0, /* @tp_as_sequence@ */ | |
2161 | 0, /* @tp_as_mapping@ */ | |
2162 | 0, /* @tp_hash@ */ | |
2163 | 0, /* @tp_call@ */ | |
2164 | 0, /* @tp_str@ */ | |
2165 | 0, /* @tp_getattro@ */ | |
2166 | 0, /* @tp_setattro@ */ | |
2167 | 0, /* @tp_as_buffer@ */ | |
2168 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
2169 | Py_TPFLAGS_BASETYPE, | |
2170 | ||
2171 | /* @tp_doc@ */ | |
d96c882e | 2172 | "Hash function, abstract base class.", |
d7ab1bab | 2173 | |
2174 | 0, /* @tp_traverse@ */ | |
2175 | 0, /* @tp_clear@ */ | |
2176 | 0, /* @tp_richcompare@ */ | |
2177 | 0, /* @tp_weaklistoffset@ */ | |
2178 | 0, /* @tp_iter@ */ | |
963a6148 | 2179 | 0, /* @tp_iternext@ */ |
c90f712e | 2180 | PYMETHODS(ghash), /* @tp_methods@ */ |
d7ab1bab | 2181 | 0, /* @tp_members@ */ |
2182 | 0, /* @tp_getset@ */ | |
2183 | 0, /* @tp_base@ */ | |
2184 | 0, /* @tp_dict@ */ | |
2185 | 0, /* @tp_descr_get@ */ | |
2186 | 0, /* @tp_descr_set@ */ | |
2187 | 0, /* @tp_dictoffset@ */ | |
2188 | 0, /* @tp_init@ */ | |
2189 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
2190 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 2191 | 0, /* @tp_free@ */ |
d7ab1bab | 2192 | 0 /* @tp_is_gc@ */ |
2193 | }; | |
2194 | ||
2195 | /*----- Message authentication --------------------------------------------*/ | |
2196 | ||
c6e89d48 | 2197 | static PyTypeObject *gcmac_pytype, *gmac_pytype, *gmhash_pytype; |
d7ab1bab | 2198 | |
c6e89d48 MW |
2199 | typedef struct gcmac_pyobj { |
2200 | PyHeapTypeObject ty; | |
2201 | gcmac *cm; | |
2202 | } gcmac_pyobj; | |
2203 | ||
2204 | #define GCMAC_PYCHECK(o) PyObject_TypeCheck((o), gcmac_pytype) | |
2205 | #define GCMAC_CM(o) (((gcmac_pyobj *)(o))->cm) | |
2206 | #define GCMAC_F(o) (((gcmac_pyobj *)(o))->f) | |
d7ab1bab | 2207 | CONVFUNC(gcmac, gcmac *, GCMAC_CM) |
c6e89d48 MW |
2208 | static PyObject *gmac_pywrap(PyObject *, gmac *); |
2209 | ||
2210 | typedef struct gmac_pyobj { | |
2211 | PyHeapTypeObject ty; | |
2212 | gmac *m; | |
2213 | } gmac_pyobj; | |
2214 | ||
2215 | extern PyTypeObject *gmac_pytype; | |
2216 | #define GMAC_PYCHECK(o) PyObject_TypeCheck((o), gmac_pytype) | |
2217 | #define GMAC_M(o) (((gmac_pyobj *)(o))->m) | |
2218 | #define GMAC_F(o) (((gmac_pyobj *)(o))->f) | |
2219 | extern PyObject *gmac_pywrap(PyObject *, gmac *); | |
2220 | extern int convgmac(PyObject *, void *); | |
d7ab1bab | 2221 | |
2222 | static PyObject *gmac_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
2223 | { | |
827f89d7 | 2224 | static const char *const kwlist[] = { "k", 0 }; |
67c75893 | 2225 | struct bin k; |
d7ab1bab | 2226 | |
67c75893 | 2227 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&:new", KWLIST, convbin, &k)) |
d7ab1bab | 2228 | goto end; |
67c75893 | 2229 | if (keysz(k.sz, GCMAC_CM(ty)->keysz) != k.sz) VALERR("bad key length"); |
d7ab1bab | 2230 | return (gmac_pywrap((PyObject *)ty, |
67c75893 | 2231 | GM_KEY(GCMAC_CM(ty), k.p, k.sz))); |
d7ab1bab | 2232 | end: |
b2687a0a | 2233 | return (0); |
d7ab1bab | 2234 | } |
2235 | ||
2236 | static PyObject *gmhash_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
2237 | { | |
827f89d7 | 2238 | static const char *const kwlist[] = { 0 }; |
d7ab1bab | 2239 | ghash_pyobj *g; |
2240 | ||
827f89d7 | 2241 | if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", KWLIST)) return (0); |
d7ab1bab | 2242 | g = PyObject_NEW(ghash_pyobj, ty); |
2243 | g->h = GM_INIT(GMAC_M(ty)); | |
d7ab1bab | 2244 | Py_INCREF(ty); |
2245 | return ((PyObject *)g); | |
2246 | } | |
2247 | ||
c6e89d48 | 2248 | static PyObject *gcmac_pywrap(gcmac *cm) |
d7ab1bab | 2249 | { |
df9f8366 | 2250 | gcmac_pyobj *g = newtype(gcmac_pytype, 0, cm->name); |
d7ab1bab | 2251 | g->cm = cm; |
24b3d57b MW |
2252 | g->ty.ht_type.tp_basicsize = sizeof(gmac_pyobj); |
2253 | g->ty.ht_type.tp_base = gmac_pytype; | |
d7ab1bab | 2254 | Py_INCREF(gmac_pytype); |
24b3d57b MW |
2255 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
2256 | Py_TPFLAGS_BASETYPE | | |
2257 | Py_TPFLAGS_HEAPTYPE); | |
2258 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
2259 | g->ty.ht_type.tp_free = 0; | |
2260 | g->ty.ht_type.tp_new = gmac_pynew; | |
dc075750 | 2261 | typeready(&g->ty.ht_type); |
d7ab1bab | 2262 | return ((PyObject *)g); |
2263 | } | |
2264 | ||
c6e89d48 | 2265 | static PyObject *gmac_pywrap(PyObject *cobj, gmac *m) |
d7ab1bab | 2266 | { |
2267 | gmac_pyobj *g; | |
2268 | if (!cobj) cobj = gcmac_pywrap((/*unconst*/ gcmac *)GM_CLASS(m)); | |
2269 | else Py_INCREF(cobj); | |
df9f8366 | 2270 | g = newtype((PyTypeObject *)cobj, 0, 0); |
828b1388 | 2271 | g->ty.ht_type.tp_basicsize = sizeof(ghash_pyobj); |
2135a6d3 MW |
2272 | g->ty.ht_name = TEXT_FORMAT("%s(keyed)", m->ops->c->name); |
2273 | g->ty.ht_type.tp_name = TEXT_PTR(g->ty.ht_name); | |
24b3d57b | 2274 | g->ty.ht_type.tp_base = gmhash_pytype; |
d7ab1bab | 2275 | Py_INCREF(gmac_pytype); |
24b3d57b MW |
2276 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
2277 | Py_TPFLAGS_BASETYPE | | |
2278 | Py_TPFLAGS_HEAPTYPE); | |
2279 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
2280 | g->ty.ht_type.tp_free = 0; | |
2281 | g->ty.ht_type.tp_new = gmhash_pynew; | |
dc075750 | 2282 | typeready(&g->ty.ht_type); |
d7ab1bab | 2283 | g->m = m; |
b2687a0a | 2284 | return ((PyObject *)g); |
d7ab1bab | 2285 | } |
2286 | ||
2287 | static void gmac_pydealloc(PyObject *me) | |
2288 | { | |
c41d0371 | 2289 | GM_DESTROY(GMAC_M(me)); |
2a448f86 | 2290 | Py_DECREF(Py_TYPE(me)); |
d7ab1bab | 2291 | PyType_Type.tp_dealloc(me); |
2292 | } | |
2293 | ||
2294 | static PyObject *gcmget_name(PyObject *me, void *hunoz) | |
2135a6d3 | 2295 | { return (TEXT_FROMSTR(GCMAC_CM(me)->name)); } |
d7ab1bab | 2296 | |
2297 | static PyObject *gcmget_keysz(PyObject *me, void *hunoz) | |
2298 | { return (keysz_pywrap(GCMAC_CM(me)->keysz)); } | |
2299 | ||
2300 | static PyObject *gcmget_tagsz(PyObject *me, void *hunoz) | |
2301 | { return (PyInt_FromLong(GCMAC_CM(me)->hashsz)); } | |
2302 | ||
c90f712e | 2303 | static const PyGetSetDef gcmac_pygetset[] = { |
d7ab1bab | 2304 | #define GETSETNAME(op, name) gcm##op##_##name |
d96c882e MW |
2305 | GET (keysz, "CM.keysz -> acceptable key sizes") |
2306 | GET (tagsz, "CM.tagsz -> MAC output size") | |
2307 | GET (name, "CM.name -> name of this kind of MAC") | |
d7ab1bab | 2308 | #undef GETSETNAME |
2309 | { 0 } | |
2310 | }; | |
2311 | ||
71574cba MW |
2312 | static PyObject *gmget_name(PyObject *me, void *hunoz) |
2313 | { return (TEXT_FROMSTR(GMAC_M(me)->ops->c->name)); } | |
2314 | ||
2315 | static PyObject *gmget_hashsz(PyObject *me, void *hunoz) | |
2316 | { return (PyInt_FromLong(GMAC_M(me)->ops->c->hashsz)); } | |
2317 | #define gmget_tagsz gmget_hashsz | |
2318 | ||
2319 | static const PyGetSetDef gmac_pygetset[] = { | |
2320 | #define GETSETNAME(op, name) gm##op##_##name | |
2321 | GET (hashsz, "M.hashsz -> MAC output size") | |
2322 | GET (tagsz, "M.tagsz -> MAC output size") | |
2323 | GET (name, "M.name -> name of this kind of MAC") | |
2324 | #undef GETSETNAME | |
2325 | { 0 } | |
2326 | }; | |
2327 | ||
c263b05c | 2328 | static const PyTypeObject gcmac_pytype_skel = { |
591bf41b | 2329 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
c461c9b3 | 2330 | "GCMAC", /* @tp_name@ */ |
d7ab1bab | 2331 | sizeof(gchash_pyobj), /* @tp_basicsize@ */ |
2332 | 0, /* @tp_itemsize@ */ | |
2333 | ||
2334 | 0, /* @tp_dealloc@ */ | |
2335 | 0, /* @tp_print@ */ | |
2336 | 0, /* @tp_getattr@ */ | |
2337 | 0, /* @tp_setattr@ */ | |
2338 | 0, /* @tp_compare@ */ | |
2339 | 0, /* @tp_repr@ */ | |
2340 | 0, /* @tp_as_number@ */ | |
2341 | 0, /* @tp_as_sequence@ */ | |
2342 | 0, /* @tp_as_mapping@ */ | |
2343 | 0, /* @tp_hash@ */ | |
2344 | 0, /* @tp_call@ */ | |
2345 | 0, /* @tp_str@ */ | |
2346 | 0, /* @tp_getattro@ */ | |
2347 | 0, /* @tp_setattro@ */ | |
2348 | 0, /* @tp_as_buffer@ */ | |
2349 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
2350 | Py_TPFLAGS_BASETYPE, | |
2351 | ||
2352 | /* @tp_doc@ */ | |
d96c882e | 2353 | "Message authentication code metametaclass.", |
d7ab1bab | 2354 | |
2355 | 0, /* @tp_traverse@ */ | |
2356 | 0, /* @tp_clear@ */ | |
2357 | 0, /* @tp_richcompare@ */ | |
2358 | 0, /* @tp_weaklistoffset@ */ | |
2359 | 0, /* @tp_iter@ */ | |
963a6148 | 2360 | 0, /* @tp_iternext@ */ |
d7ab1bab | 2361 | 0, /* @tp_methods@ */ |
2362 | 0, /* @tp_members@ */ | |
c90f712e | 2363 | PYGETSET(gcmac), /* @tp_getset@ */ |
d7ab1bab | 2364 | 0, /* @tp_base@ */ |
2365 | 0, /* @tp_dict@ */ | |
2366 | 0, /* @tp_descr_get@ */ | |
2367 | 0, /* @tp_descr_set@ */ | |
2368 | 0, /* @tp_dictoffset@ */ | |
2369 | 0, /* @tp_init@ */ | |
2370 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
2371 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 2372 | 0, /* @tp_free@ */ |
d7ab1bab | 2373 | 0 /* @tp_is_gc@ */ |
2374 | }; | |
2375 | ||
c263b05c | 2376 | static const PyTypeObject gmac_pytype_skel = { |
591bf41b | 2377 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
c461c9b3 | 2378 | "GMAC", /* @tp_name@ */ |
d7ab1bab | 2379 | sizeof(gmac_pyobj), /* @tp_basicsize@ */ |
2380 | 0, /* @tp_itemsize@ */ | |
2381 | ||
2382 | gmac_pydealloc, /* @tp_dealloc@ */ | |
2383 | 0, /* @tp_print@ */ | |
2384 | 0, /* @tp_getattr@ */ | |
2385 | 0, /* @tp_setattr@ */ | |
2386 | 0, /* @tp_compare@ */ | |
2387 | 0, /* @tp_repr@ */ | |
2388 | 0, /* @tp_as_number@ */ | |
2389 | 0, /* @tp_as_sequence@ */ | |
2390 | 0, /* @tp_as_mapping@ */ | |
2391 | 0, /* @tp_hash@ */ | |
2392 | 0, /* @tp_call@ */ | |
2393 | 0, /* @tp_str@ */ | |
2394 | 0, /* @tp_getattro@ */ | |
2395 | 0, /* @tp_setattro@ */ | |
2396 | 0, /* @tp_as_buffer@ */ | |
2397 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
2398 | Py_TPFLAGS_BASETYPE, | |
2399 | ||
2400 | /* @tp_doc@ */ | |
d96c882e | 2401 | "Message authentication code metaclass, abstract base class.", |
d7ab1bab | 2402 | |
2403 | 0, /* @tp_traverse@ */ | |
2404 | 0, /* @tp_clear@ */ | |
2405 | 0, /* @tp_richcompare@ */ | |
2406 | 0, /* @tp_weaklistoffset@ */ | |
2407 | 0, /* @tp_iter@ */ | |
963a6148 | 2408 | 0, /* @tp_iternext@ */ |
d7ab1bab | 2409 | 0, /* @tp_methods@ */ |
2410 | 0, /* @tp_members@ */ | |
71574cba | 2411 | PYGETSET(gmac), /* @tp_getset@ */ |
d7ab1bab | 2412 | 0, /* @tp_base@ */ |
2413 | 0, /* @tp_dict@ */ | |
2414 | 0, /* @tp_descr_get@ */ | |
2415 | 0, /* @tp_descr_set@ */ | |
2416 | 0, /* @tp_dictoffset@ */ | |
2417 | 0, /* @tp_init@ */ | |
2418 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
2419 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 2420 | 0, /* @tp_free@ */ |
d7ab1bab | 2421 | 0 /* @tp_is_gc@ */ |
2422 | }; | |
2423 | ||
c263b05c | 2424 | static const PyTypeObject gmhash_pytype_skel = { |
591bf41b | 2425 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
c461c9b3 | 2426 | "GMACHash", /* @tp_name@ */ |
d7ab1bab | 2427 | sizeof(ghash_pyobj), /* @tp_basicsize@ */ |
2428 | 0, /* @tp_itemsize@ */ | |
2429 | ||
2430 | ghash_pydealloc, /* @tp_dealloc@ */ | |
2431 | 0, /* @tp_print@ */ | |
2432 | 0, /* @tp_getattr@ */ | |
2433 | 0, /* @tp_setattr@ */ | |
2434 | 0, /* @tp_compare@ */ | |
2435 | 0, /* @tp_repr@ */ | |
2436 | 0, /* @tp_as_number@ */ | |
2437 | 0, /* @tp_as_sequence@ */ | |
2438 | 0, /* @tp_as_mapping@ */ | |
2439 | 0, /* @tp_hash@ */ | |
2440 | 0, /* @tp_call@ */ | |
2441 | 0, /* @tp_str@ */ | |
2442 | 0, /* @tp_getattro@ */ | |
2443 | 0, /* @tp_setattro@ */ | |
2444 | 0, /* @tp_as_buffer@ */ | |
2445 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
2446 | Py_TPFLAGS_BASETYPE, | |
2447 | ||
2448 | /* @tp_doc@ */ | |
d96c882e | 2449 | "Message authentication code, abstract base class.", |
d7ab1bab | 2450 | |
2451 | 0, /* @tp_traverse@ */ | |
2452 | 0, /* @tp_clear@ */ | |
2453 | 0, /* @tp_richcompare@ */ | |
2454 | 0, /* @tp_weaklistoffset@ */ | |
2455 | 0, /* @tp_iter@ */ | |
963a6148 | 2456 | 0, /* @tp_iternext@ */ |
d7ab1bab | 2457 | 0, /* @tp_methods@ */ |
2458 | 0, /* @tp_members@ */ | |
2459 | 0, /* @tp_getset@ */ | |
2460 | 0, /* @tp_base@ */ | |
2461 | 0, /* @tp_dict@ */ | |
2462 | 0, /* @tp_descr_get@ */ | |
2463 | 0, /* @tp_descr_set@ */ | |
2464 | 0, /* @tp_dictoffset@ */ | |
2465 | 0, /* @tp_init@ */ | |
2466 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
2467 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 2468 | 0, /* @tp_free@ */ |
d7ab1bab | 2469 | 0 /* @tp_is_gc@ */ |
2470 | }; | |
2471 | ||
204d480b MW |
2472 | /*----- Special snowflake for Poly1305 ------------------------------------*/ |
2473 | ||
2474 | PyTypeObject *poly1305cls_pytype, *poly1305key_pytype, *poly1305hash_pytype; | |
2475 | ||
2476 | typedef struct poly1305key_pyobj { | |
2477 | PyHeapTypeObject ty; | |
2478 | poly1305_key k; | |
2479 | } poly1305key_pyobj; | |
2480 | ||
2481 | typedef struct poly1305hash_pyobj { | |
2482 | PyObject_HEAD | |
2483 | unsigned f; | |
2484 | #define f_mask 1u | |
2485 | poly1305_ctx ctx; | |
2486 | } poly1305hash_pyobj; | |
2487 | ||
2488 | #define P1305_F(o) (((poly1305hash_pyobj *)(o))->f) | |
2489 | #define P1305_CTX(o) (&((poly1305hash_pyobj *)(o))->ctx) | |
2490 | CONVFUNC(poly1305hash, poly1305_ctx *, P1305_CTX) | |
2491 | ||
2492 | static PyObject *poly1305hash_pynew(PyTypeObject *ty, | |
2493 | PyObject *arg, PyObject *kw) | |
2494 | { | |
827f89d7 | 2495 | static const char *const kwlist[] = { "mask", 0 }; |
204d480b MW |
2496 | poly1305key_pyobj *pk = (poly1305key_pyobj *)ty; |
2497 | poly1305hash_pyobj *ph; | |
67c75893 | 2498 | struct bin m = { 0, 0 }; |
204d480b | 2499 | |
67c75893 | 2500 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:new", KWLIST, convbin, &m)) |
204d480b | 2501 | return (0); |
67c75893 | 2502 | if (m.p && m.sz != POLY1305_MASKSZ) VALERR("bad mask length"); |
204d480b MW |
2503 | ph = PyObject_NEW(poly1305hash_pyobj, ty); |
2504 | ph->f = 0; | |
67c75893 MW |
2505 | if (m.p) ph->f |= f_mask; |
2506 | poly1305_macinit(&ph->ctx, &pk->k, m.p); | |
204d480b MW |
2507 | Py_INCREF(ty); |
2508 | return ((PyObject *)ph); | |
2509 | end: | |
2510 | return (0); | |
2511 | } | |
2512 | ||
2513 | static PyObject *poly1305key_pynew(PyTypeObject *ty, | |
2514 | PyObject *arg, PyObject *kw) | |
2515 | { | |
827f89d7 | 2516 | static const char *const kwlist[] = { "k", 0 }; |
204d480b | 2517 | poly1305key_pyobj *pk; |
67c75893 | 2518 | struct bin k; |
204d480b | 2519 | |
67c75893 | 2520 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&:new", KWLIST, convbin, &k)) |
204d480b | 2521 | goto end; |
67c75893 | 2522 | if (keysz(k.sz, poly1305_keysz) != k.sz) VALERR("bad key length"); |
204d480b MW |
2523 | |
2524 | pk = newtype(ty, 0, 0); | |
2135a6d3 | 2525 | pk->ty.ht_name = TEXT_FROMSTR("poly1305(keyed)"); |
204d480b | 2526 | pk->ty.ht_type.tp_basicsize = sizeof(poly1305hash_pyobj); |
2135a6d3 | 2527 | pk->ty.ht_type.tp_name = TEXT_PTR(pk->ty.ht_name); |
204d480b MW |
2528 | pk->ty.ht_type.tp_base = poly1305hash_pytype; |
2529 | Py_INCREF(poly1305key_pytype); | |
2530 | pk->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | | |
2531 | Py_TPFLAGS_BASETYPE | | |
2532 | Py_TPFLAGS_HEAPTYPE); | |
2533 | pk->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
2534 | pk->ty.ht_type.tp_free = 0; | |
2535 | pk->ty.ht_type.tp_new = poly1305hash_pynew; | |
2536 | typeready(&pk->ty.ht_type); | |
2537 | ||
67c75893 | 2538 | poly1305_keyinit(&pk->k, k.p, k.sz); |
204d480b MW |
2539 | return ((PyObject *)pk); |
2540 | ||
2541 | end: | |
2542 | return (0); | |
2543 | } | |
2544 | ||
2545 | static PyObject *poly1305clsget_name(PyObject *me, void *hunoz) | |
2135a6d3 | 2546 | { return (TEXT_FROMSTR("poly1305")); } |
204d480b MW |
2547 | |
2548 | static PyObject *poly1305clsget_keysz(PyObject *me, void *hunoz) | |
2549 | { return (keysz_pywrap(poly1305_keysz)); } | |
2550 | ||
2551 | static PyObject *poly1305clsget_masksz(PyObject *me, void *hunoz) | |
2552 | { return (PyInt_FromLong(POLY1305_MASKSZ)); } | |
2553 | ||
2554 | static PyObject *poly1305clsget_tagsz(PyObject *me, void *hunoz) | |
2555 | { return (PyInt_FromLong(POLY1305_TAGSZ)); } | |
2556 | ||
91e56f06 | 2557 | static PyObject *polymeth_copy(PyObject *me) |
204d480b MW |
2558 | { |
2559 | poly1305hash_pyobj *ph; | |
2a448f86 | 2560 | ph = PyObject_NEW(poly1305hash_pyobj, Py_TYPE(me)); |
204d480b | 2561 | poly1305_copy(&ph->ctx, P1305_CTX(me)); |
2a448f86 | 2562 | Py_INCREF(Py_TYPE(me)); |
204d480b MW |
2563 | return ((PyObject *)ph); |
2564 | } | |
2565 | ||
2566 | static PyObject *polymeth_hash(PyObject *me, PyObject *arg) | |
2567 | { | |
67c75893 MW |
2568 | struct bin m; |
2569 | if (!PyArg_ParseTuple(arg, "O&:hash", convbin, &m)) return (0); | |
2570 | poly1305_hash(P1305_CTX(me), m.p, m.sz); | |
204d480b MW |
2571 | RETURN_ME; |
2572 | } | |
2573 | ||
2574 | #define POLYMETH_HASHU_(n, W, w) \ | |
2575 | static PyObject *polymeth_hashu##w(PyObject *me, PyObject *arg) \ | |
2576 | { \ | |
2577 | uint##n x; \ | |
2578 | octet b[SZ_##W]; \ | |
0e5c668c | 2579 | if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) return (0); \ |
0c87e818 | 2580 | STORE##W(b, x); poly1305_hash(P1305_CTX(me), b, sizeof(b)); \ |
204d480b | 2581 | RETURN_ME; \ |
204d480b MW |
2582 | } |
2583 | DOUINTCONV(POLYMETH_HASHU_) | |
2584 | ||
2585 | #define POLYMETH_HASHBUF_(n, W, w) \ | |
2586 | static PyObject *polymeth_hashbuf##w(PyObject *me, PyObject *arg) \ | |
2587 | { \ | |
67c75893 | 2588 | struct bin in; \ |
204d480b | 2589 | octet b[SZ_##W]; \ |
67c75893 | 2590 | if (!PyArg_ParseTuple(arg, "O&:hashbuf" #w, convbin, &in)) goto end; \ |
e01ab3c9 | 2591 | if (in.sz > MASK##n) VALERR("too large"); \ |
67c75893 MW |
2592 | STORE##W(b, in.sz); poly1305_hash(P1305_CTX(me), b, sizeof(b)); \ |
2593 | poly1305_hash(P1305_CTX(me), in.p, in.sz); \ | |
204d480b MW |
2594 | RETURN_ME; \ |
2595 | end: \ | |
2596 | return (0); \ | |
2597 | } | |
2598 | DOUINTCONV(POLYMETH_HASHBUF_) | |
2599 | ||
2600 | static PyObject *polymeth_hashstrz(PyObject *me, PyObject *arg) | |
2601 | { | |
2602 | char *p; | |
2603 | if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0); | |
2604 | poly1305_hash(P1305_CTX(me), p, strlen(p) + 1); | |
2605 | RETURN_ME; | |
2606 | } | |
2607 | ||
91e56f06 MW |
2608 | static PyObject *polymeth_flush(PyObject *me) |
2609 | { poly1305_flush(P1305_CTX(me)); RETURN_ME; } | |
204d480b | 2610 | |
91e56f06 MW |
2611 | static PyObject *polymeth_flushzero(PyObject *me) |
2612 | { poly1305_flushzero(P1305_CTX(me)); RETURN_ME; } | |
5c17375a | 2613 | |
204d480b MW |
2614 | static PyObject *polymeth_concat(PyObject *me, PyObject *arg) |
2615 | { | |
2616 | PyObject *pre, *suff; | |
2617 | if (!PyArg_ParseTuple(arg, "OO:concat", &pre, &suff)) return (0); | |
2618 | if (!PyObject_TypeCheck(pre, poly1305hash_pytype) || | |
2619 | !PyObject_TypeCheck(suff, poly1305hash_pytype)) | |
2620 | TYERR("wanted a poly1305hash"); | |
2a448f86 | 2621 | if (Py_TYPE(me) != Py_TYPE(pre) || Py_TYPE(me) != Py_TYPE(suff)) |
204d480b MW |
2622 | TYERR("key mismatch"); |
2623 | if (P1305_CTX(pre)->nbuf) VALERR("prefix is not block-aligned"); | |
2624 | poly1305_concat(P1305_CTX(me), P1305_CTX(pre), P1305_CTX(suff)); | |
2625 | RETURN_ME; | |
2626 | end: | |
2627 | return (0); | |
2628 | } | |
2629 | ||
91e56f06 | 2630 | static PyObject *polymeth_done(PyObject *me) |
204d480b MW |
2631 | { |
2632 | PyObject *rc; | |
204d480b MW |
2633 | if (!(P1305_F(me) & f_mask)) VALERR("no mask"); |
2634 | rc = bytestring_pywrap(0, POLY1305_TAGSZ); | |
2135a6d3 | 2635 | poly1305_done(P1305_CTX(me), BIN_PTR(rc)); |
204d480b MW |
2636 | return (rc); |
2637 | end: | |
2638 | return (0); | |
2639 | } | |
2640 | ||
c90f712e | 2641 | static const PyGetSetDef poly1305cls_pygetset[] = { |
204d480b | 2642 | #define GETSETNAME(op, name) poly1305cls##op##_##name |
d96c882e MW |
2643 | GET (keysz, "PC.keysz -> acceptable key sizes") |
2644 | GET (masksz, "PC.masksz -> mask size") | |
2645 | GET (tagsz, "PC.tagsz -> MAC output size") | |
2646 | GET (name, "PC.name -> name of this kind of MAC") | |
204d480b MW |
2647 | #undef GETSETNAME |
2648 | { 0 } | |
2649 | }; | |
2650 | ||
71574cba MW |
2651 | static PyObject *poly1305get_name(PyObject *me, void *hunoz) |
2652 | { RETURN_OBJ(((PyHeapTypeObject *)poly1305key_pytype)->ht_name); } | |
2653 | ||
2654 | static PyObject *poly1305get_tagsz(PyObject *me, void *hunoz) | |
2655 | { return (PyInt_FromLong(16)); } | |
2656 | ||
2657 | static const PyGetSetDef poly1305_pygetset[] = { | |
2658 | #define GETSETNAME(op, name) poly1305##op##_##name | |
2659 | GET (tagsz, "PK.tagsz -> MAC output size") | |
2660 | GET (name, "PK.name -> name of this kind of MAC") | |
2661 | #undef GETSETNAME | |
2662 | { 0 } | |
2663 | }; | |
2664 | ||
c90f712e | 2665 | static const PyMethodDef poly1305hash_pymethods[] = { |
204d480b | 2666 | #define METHNAME(name) polymeth_##name |
91e56f06 | 2667 | NAMETH(copy, "P.copy() -> PP") |
d96c882e | 2668 | METH (hash, "P.hash(M)") |
204d480b MW |
2669 | #define METHU_(n, W, w) METH(hashu##w, "P.hashu" #w "(WORD)") |
2670 | DOUINTCONV(METHU_) | |
2671 | #undef METHU_ | |
2672 | #define METHBUF_(n, W, w) METH(hashbuf##w, "P.hashbuf" #w "(BYTES)") | |
2673 | DOUINTCONV(METHBUF_) | |
2674 | #undef METHBUF_ | |
d96c882e | 2675 | METH (hashstrz, "P.hashstrz(STRING)") |
91e56f06 MW |
2676 | NAMETH(flush, "P.flush()") |
2677 | NAMETH(flushzero, "P.flushzero()") | |
d96c882e | 2678 | METH (concat, "P.concat(PREFIX, SUFFIX)") |
91e56f06 | 2679 | NAMETH(done, "P.done() -> TAG") |
204d480b MW |
2680 | #undef METHNAME |
2681 | { 0 } | |
2682 | }; | |
2683 | ||
c263b05c | 2684 | static const PyTypeObject poly1305cls_pytype_skel = { |
591bf41b | 2685 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
2edb633e | 2686 | "_Poly1305Class", /* @tp_name@ */ |
204d480b MW |
2687 | sizeof(PyHeapTypeObject), /* @tp_basicsize@ */ |
2688 | 0, /* @tp_itemsize@ */ | |
2689 | ||
2690 | 0, /* @tp_dealloc@ */ | |
2691 | 0, /* @tp_print@ */ | |
2692 | 0, /* @tp_getattr@ */ | |
2693 | 0, /* @tp_setattr@ */ | |
2694 | 0, /* @tp_compare@ */ | |
2695 | 0, /* @tp_repr@ */ | |
2696 | 0, /* @tp_as_number@ */ | |
2697 | 0, /* @tp_as_sequence@ */ | |
2698 | 0, /* @tp_as_mapping@ */ | |
2699 | 0, /* @tp_hash@ */ | |
2700 | 0, /* @tp_call@ */ | |
2701 | 0, /* @tp_str@ */ | |
2702 | 0, /* @tp_getattro@ */ | |
2703 | 0, /* @tp_setattro@ */ | |
2704 | 0, /* @tp_as_buffer@ */ | |
2705 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
2706 | Py_TPFLAGS_BASETYPE, | |
2707 | ||
2708 | /* @tp_doc@ */ | |
d96c882e | 2709 | "Poly1305 metametaclass. Best not to ask.", |
204d480b MW |
2710 | |
2711 | 0, /* @tp_traverse@ */ | |
2712 | 0, /* @tp_clear@ */ | |
2713 | 0, /* @tp_richcompare@ */ | |
2714 | 0, /* @tp_weaklistoffset@ */ | |
2715 | 0, /* @tp_iter@ */ | |
2716 | 0, /* @tp_iternext@ */ | |
2717 | 0, /* @tp_methods@ */ | |
2718 | 0, /* @tp_members@ */ | |
c90f712e | 2719 | PYGETSET(poly1305cls), /* @tp_getset@ */ |
204d480b MW |
2720 | 0, /* @tp_base@ */ |
2721 | 0, /* @tp_dict@ */ | |
2722 | 0, /* @tp_descr_get@ */ | |
2723 | 0, /* @tp_descr_set@ */ | |
2724 | 0, /* @tp_dictoffset@ */ | |
2725 | 0, /* @tp_init@ */ | |
2726 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
2727 | abstract_pynew, /* @tp_new@ */ | |
2728 | 0, /* @tp_free@ */ | |
2729 | 0 /* @tp_is_gc@ */ | |
2730 | }; | |
2731 | ||
c263b05c | 2732 | static const PyTypeObject poly1305key_pytype_skel = { |
591bf41b | 2733 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
204d480b MW |
2734 | "poly1305", /* @tp_name@ */ |
2735 | sizeof(poly1305key_pyobj), /* @tp_basicsize@ */ | |
2736 | 0, /* @tp_itemsize@ */ | |
2737 | ||
2738 | 0, /* @tp_dealloc@ */ | |
2739 | 0, /* @tp_print@ */ | |
2740 | 0, /* @tp_getattr@ */ | |
2741 | 0, /* @tp_setattr@ */ | |
2742 | 0, /* @tp_compare@ */ | |
2743 | 0, /* @tp_repr@ */ | |
2744 | 0, /* @tp_as_number@ */ | |
2745 | 0, /* @tp_as_sequence@ */ | |
2746 | 0, /* @tp_as_mapping@ */ | |
2747 | 0, /* @tp_hash@ */ | |
2748 | 0, /* @tp_call@ */ | |
2749 | 0, /* @tp_str@ */ | |
2750 | 0, /* @tp_getattro@ */ | |
2751 | 0, /* @tp_setattro@ */ | |
2752 | 0, /* @tp_as_buffer@ */ | |
2753 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
2754 | Py_TPFLAGS_BASETYPE, | |
2755 | ||
2756 | /* @tp_doc@ */ | |
d96c882e | 2757 | "poly1305(K): Poly1305 key.", |
204d480b MW |
2758 | |
2759 | 0, /* @tp_traverse@ */ | |
2760 | 0, /* @tp_clear@ */ | |
2761 | 0, /* @tp_richcompare@ */ | |
2762 | 0, /* @tp_weaklistoffset@ */ | |
2763 | 0, /* @tp_iter@ */ | |
2764 | 0, /* @tp_iternext@ */ | |
2765 | 0, /* @tp_methods@ */ | |
2766 | 0, /* @tp_members@ */ | |
71574cba | 2767 | PYGETSET(poly1305), /* @tp_getset@ */ |
204d480b MW |
2768 | 0, /* @tp_base@ */ |
2769 | 0, /* @tp_dict@ */ | |
2770 | 0, /* @tp_descr_get@ */ | |
2771 | 0, /* @tp_descr_set@ */ | |
2772 | 0, /* @tp_dictoffset@ */ | |
2773 | 0, /* @tp_init@ */ | |
2774 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
2775 | poly1305key_pynew, /* @tp_new@ */ | |
2776 | 0, /* @tp_free@ */ | |
2777 | 0 /* @tp_is_gc@ */ | |
2778 | }; | |
2779 | ||
c263b05c | 2780 | static const PyTypeObject poly1305hash_pytype_skel = { |
591bf41b | 2781 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
204d480b MW |
2782 | "Poly1305Hash", /* @tp_name@ */ |
2783 | sizeof(poly1305hash_pyobj), /* @tp_basicsize@ */ | |
2784 | 0, /* @tp_itemsize@ */ | |
2785 | ||
2786 | 0, /* @tp_dealloc@ */ | |
2787 | 0, /* @tp_print@ */ | |
2788 | 0, /* @tp_getattr@ */ | |
2789 | 0, /* @tp_setattr@ */ | |
2790 | 0, /* @tp_compare@ */ | |
2791 | 0, /* @tp_repr@ */ | |
2792 | 0, /* @tp_as_number@ */ | |
2793 | 0, /* @tp_as_sequence@ */ | |
2794 | 0, /* @tp_as_mapping@ */ | |
2795 | 0, /* @tp_hash@ */ | |
2796 | 0, /* @tp_call@ */ | |
2797 | 0, /* @tp_str@ */ | |
2798 | 0, /* @tp_getattro@ */ | |
2799 | 0, /* @tp_setattro@ */ | |
2800 | 0, /* @tp_as_buffer@ */ | |
2801 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
2802 | Py_TPFLAGS_BASETYPE, | |
2803 | ||
2804 | /* @tp_doc@ */ | |
d96c882e | 2805 | "Poly1305 MAC context base class.", |
204d480b MW |
2806 | |
2807 | 0, /* @tp_traverse@ */ | |
2808 | 0, /* @tp_clear@ */ | |
2809 | 0, /* @tp_richcompare@ */ | |
2810 | 0, /* @tp_weaklistoffset@ */ | |
2811 | 0, /* @tp_iter@ */ | |
2812 | 0, /* @tp_iternext@ */ | |
c90f712e | 2813 | PYMETHODS(poly1305hash), /* @tp_methods@ */ |
204d480b MW |
2814 | 0, /* @tp_members@ */ |
2815 | 0, /* @tp_getset@ */ | |
2816 | 0, /* @tp_base@ */ | |
2817 | 0, /* @tp_dict@ */ | |
2818 | 0, /* @tp_descr_get@ */ | |
2819 | 0, /* @tp_descr_set@ */ | |
2820 | 0, /* @tp_dictoffset@ */ | |
2821 | 0, /* @tp_init@ */ | |
2822 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
2823 | abstract_pynew, /* @tp_new@ */ | |
2824 | 0, /* @tp_free@ */ | |
2825 | 0 /* @tp_is_gc@ */ | |
2826 | }; | |
2827 | ||
a75e68c9 MW |
2828 | /*----- Special snowflake for HSalsa and HChaCha --------------------------*/ |
2829 | ||
2830 | #define DEF_HDANCE(DANCE, HDANCE, dance, hdance) \ | |
2831 | static PyObject *meth_##hdance##_prf(PyObject *me, PyObject *arg) \ | |
2832 | { \ | |
2833 | dance##_ctx dance; \ | |
67c75893 | 2834 | struct bin k, n; \ |
a75e68c9 | 2835 | PyObject *rc; \ |
67c75893 MW |
2836 | if (!PyArg_ParseTuple(arg, "O&O&:" #hdance "_prf", \ |
2837 | convbin, &k, convbin, &n)) \ | |
a75e68c9 | 2838 | goto end; \ |
67c75893 MW |
2839 | if (k.sz != keysz(k.sz, dance##_keysz)) VALERR("bad key length"); \ |
2840 | if (n.sz != HDANCE##_INSZ) VALERR("bad input length"); \ | |
a75e68c9 | 2841 | rc = bytestring_pywrap(0, HSALSA20_OUTSZ); \ |
67c75893 | 2842 | dance##_init(&dance, k.p, k.sz, 0); \ |
2135a6d3 | 2843 | hdance##_prf(&dance, n.p, BIN_PTR(rc)); \ |
a75e68c9 MW |
2844 | return (rc); \ |
2845 | end: \ | |
2846 | return (0); \ | |
2847 | } | |
2848 | ||
2849 | DEF_HDANCE(SALSA20, HSALSA20, salsa20, hsalsa20) | |
2850 | DEF_HDANCE(SALSA20, HSALSA20, salsa20, hsalsa2012) | |
2851 | DEF_HDANCE(SALSA20, HSALSA20, salsa20, hsalsa208) | |
2852 | ||
2853 | DEF_HDANCE(CHACHA, HCHACHA, chacha, hchacha20) | |
2854 | DEF_HDANCE(CHACHA, HCHACHA, chacha, hchacha12) | |
2855 | DEF_HDANCE(CHACHA, HCHACHA, chacha, hchacha8) | |
204d480b | 2856 | |
b35fdbe6 MW |
2857 | /*----- Keccak-p[1600, n] -------------------------------------------------*/ |
2858 | ||
2859 | static PyTypeObject *kxvik_pytype; | |
2860 | ||
2861 | typedef struct kxvik_pyobj { | |
2862 | PyObject_HEAD | |
2863 | keccak1600_state s; | |
2864 | unsigned n; | |
2865 | } kxvik_pyobj; | |
2866 | ||
8d2dd9dc | 2867 | static PyObject *kxvik_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
b35fdbe6 MW |
2868 | { |
2869 | unsigned n = 24; | |
2870 | kxvik_pyobj *rc = 0; | |
827f89d7 MW |
2871 | static const char *const kwlist[] = { "nround", 0 }; |
2872 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:new", KWLIST, | |
b35fdbe6 MW |
2873 | convuint, &n)) |
2874 | goto end; | |
2875 | rc = (kxvik_pyobj *)ty->tp_alloc(ty, 0); | |
2876 | rc->n = n; | |
2877 | keccak1600_init(&rc->s); | |
2878 | end: | |
2879 | return ((PyObject *)rc); | |
2880 | } | |
2881 | ||
91e56f06 | 2882 | static PyObject *kxvikmeth_copy(PyObject *me) |
cfe80e51 MW |
2883 | { |
2884 | kxvik_pyobj *k = (kxvik_pyobj *)me, *rc = 0; | |
2a448f86 | 2885 | rc = (kxvik_pyobj *)Py_TYPE(k)->tp_alloc(Py_TYPE(k), 0); |
cfe80e51 | 2886 | rc->s = k->s; rc->n = k->n; |
cfe80e51 MW |
2887 | return ((PyObject *)rc); |
2888 | } | |
2889 | ||
b35fdbe6 MW |
2890 | static PyObject *kxvikmeth_mix(PyObject *me, PyObject *arg) |
2891 | { | |
2892 | kxvik_pyobj *k = (kxvik_pyobj *)me; | |
2893 | kludge64 t[25]; | |
2894 | const octet *q; | |
2895 | octet buf[8]; | |
2896 | unsigned i; | |
67c75893 MW |
2897 | struct bin in; |
2898 | size_t n; | |
b35fdbe6 | 2899 | |
67c75893 MW |
2900 | if (!PyArg_ParseTuple(arg, "O&:mix", convbin, &in)) goto end; |
2901 | if (in.sz > 200) VALERR("out of range"); | |
2902 | q = in.p; n = in.sz; | |
b35fdbe6 MW |
2903 | i = 0; |
2904 | while (n > 8) { LOAD64_L_(t[i], q); i++; q += 8; n -= 8; } | |
2905 | if (n) { | |
2906 | memcpy(buf, q, n); memset(buf + n, 0, 8 - n); | |
2907 | LOAD64_L_(t[i], buf); i++; | |
2908 | } | |
2909 | keccak1600_mix(&k->s, t, i); | |
2910 | RETURN_ME; | |
2911 | end: | |
2912 | return (0); | |
2913 | } | |
2914 | ||
2915 | static PyObject *kxvikmeth_extract(PyObject *me, PyObject *arg) | |
2916 | { | |
2917 | kxvik_pyobj *k = (kxvik_pyobj *)me; | |
2918 | PyObject *rc = 0; | |
2919 | kludge64 t[25]; | |
2920 | octet *q, buf[8]; | |
2921 | unsigned i; | |
2922 | unsigned n; | |
2923 | ||
ae5dbbad | 2924 | if (!PyArg_ParseTuple(arg, "O&:extract", convuint, &n)) goto end; |
b35fdbe6 MW |
2925 | if (n > 200) VALERR("out of range"); |
2926 | rc = bytestring_pywrap(0, n); | |
2135a6d3 | 2927 | q = (octet *)BIN_PTR(rc); |
b35fdbe6 MW |
2928 | keccak1600_extract(&k->s, t, (n + 7)/8); |
2929 | i = 0; | |
2930 | while (n > 8) { STORE64_L_(q, t[i]); i++; q += 8; n -= 8; } | |
2931 | if (n) { STORE64_L_(buf, t[i]); memcpy(q, buf, n); } | |
2932 | end: | |
2933 | return (rc); | |
2934 | } | |
2935 | ||
91e56f06 | 2936 | static PyObject *kxvikmeth_step(PyObject *me) |
b35fdbe6 MW |
2937 | { |
2938 | kxvik_pyobj *k = (kxvik_pyobj *)me; | |
b35fdbe6 MW |
2939 | keccak1600_p(&k->s, &k->s, k->n); |
2940 | RETURN_ME; | |
2941 | } | |
2942 | ||
8e923c68 MW |
2943 | static const PyMemberDef kxvik_pymembers[] = { |
2944 | #define MEMBERSTRUCT kxvik_pyobj | |
2945 | MEMRNM(nround, T_UINT, n, 0, "KECCAC.nround -> number of rounds") | |
2946 | #undef MEMBERSTRUCT | |
b35fdbe6 MW |
2947 | { 0 } |
2948 | }; | |
2949 | ||
c90f712e | 2950 | static const PyMethodDef kxvik_pymethods[] = { |
b35fdbe6 | 2951 | #define METHNAME(func) kxvikmeth_##func |
91e56f06 | 2952 | NAMETH(copy, "KECCAK.copy() -> KECCAK'") |
d96c882e MW |
2953 | METH (mix, "KECCAK.mix(DATA)") |
2954 | METH (extract, "KECCAK.extract(NOCTETS)") | |
91e56f06 | 2955 | NAMETH(step, "KECCAK.step()") |
b35fdbe6 MW |
2956 | #undef METHNAME |
2957 | { 0 } | |
2958 | }; | |
2959 | ||
c263b05c | 2960 | static const PyTypeObject kxvik_pytype_skel = { |
591bf41b | 2961 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
b35fdbe6 MW |
2962 | "Keccak1600", /* @tp_name@ */ |
2963 | sizeof(kxvik_pyobj), /* @tp_basicsize@ */ | |
2964 | 0, /* @tp_itemsize@ */ | |
2965 | ||
2966 | 0, /* @tp_dealloc@ */ | |
2967 | 0, /* @tp_print@ */ | |
2968 | 0, /* @tp_getattr@ */ | |
2969 | 0, /* @tp_setattr@ */ | |
2970 | 0, /* @tp_compare@ */ | |
2971 | 0, /* @tp_repr@ */ | |
2972 | 0, /* @tp_as_number@ */ | |
2973 | 0, /* @tp_as_sequence@ */ | |
2974 | 0, /* @tp_as_mapping@ */ | |
2975 | 0, /* @tp_hash@ */ | |
2976 | 0, /* @tp_call@ */ | |
2977 | 0, /* @tp_str@ */ | |
2978 | 0, /* @tp_getattro@ */ | |
2979 | 0, /* @tp_setattro@ */ | |
2980 | 0, /* @tp_as_buffer@ */ | |
2981 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
2982 | Py_TPFLAGS_BASETYPE, | |
2983 | ||
2984 | /* @tp_doc@ */ | |
d96c882e | 2985 | "Keccak1600([nround = 24]): Keccak-p[1600, n] state.", |
b35fdbe6 MW |
2986 | |
2987 | 0, /* @tp_traverse@ */ | |
2988 | 0, /* @tp_clear@ */ | |
2989 | 0, /* @tp_richcompare@ */ | |
2990 | 0, /* @tp_weaklistoffset@ */ | |
2991 | 0, /* @tp_iter@ */ | |
2992 | 0, /* @tp_iternext@ */ | |
c90f712e | 2993 | PYMETHODS(kxvik), /* @tp_methods@ */ |
8e923c68 MW |
2994 | PYMEMBERS(kxvik), /* @tp_members@ */ |
2995 | 0, /* @tp_getset@ */ | |
b35fdbe6 MW |
2996 | 0, /* @tp_base@ */ |
2997 | 0, /* @tp_dict@ */ | |
2998 | 0, /* @tp_descr_get@ */ | |
2999 | 0, /* @tp_descr_set@ */ | |
3000 | 0, /* @tp_dictoffset@ */ | |
3001 | 0, /* @tp_init@ */ | |
3002 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
3003 | kxvik_pynew, /* @tp_new@ */ | |
3004 | 0, /* @tp_free@ */ | |
3005 | 0 /* @tp_is_gc@ */ | |
3006 | }; | |
3007 | ||
6bd22b53 MW |
3008 | static PyTypeObject *shake_pytype, *shake128_pytype, *shake256_pytype; |
3009 | ||
3010 | typedef struct shake_pyobj { | |
3011 | PyObject_HEAD | |
3012 | int st; | |
3013 | shake_ctx h; | |
3014 | } shake_pyobj; | |
3015 | ||
3016 | #define SHAKE_H(o) (&((shake_pyobj *)(o))->h) | |
3017 | #define SHAKE_ST(o) (((shake_pyobj *)(o))->st) | |
3018 | ||
3019 | static PyObject *shake_dopynew(void (*initfn)(shake_ctx *, | |
3020 | const void *, size_t, | |
3021 | const void *, size_t), | |
3022 | PyTypeObject *ty, | |
3023 | PyObject *arg, PyObject *kw) | |
3024 | { | |
3025 | shake_pyobj *rc = 0; | |
04b75d71 | 3026 | PyObject *pobj = Py_None, *fobj = Py_None; |
67c75893 | 3027 | struct bin p = { 0, 0 }, f = { 0, 0 }; |
827f89d7 | 3028 | static const char *const kwlist[] = { "perso", "func", 0 }; |
6bd22b53 | 3029 | |
04b75d71 MW |
3030 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|OO:new", KWLIST, &pobj, &fobj)) |
3031 | goto end; | |
3032 | if (pobj != Py_None && !convbin(pobj, &p)) goto end; | |
3033 | if (fobj != Py_None && !convbin(fobj, &f)) goto end; | |
6bd22b53 | 3034 | rc = (shake_pyobj *)ty->tp_alloc(ty, 0); |
67c75893 | 3035 | initfn(&rc->h, f.p, f.sz, p.p, p.sz); |
6bd22b53 MW |
3036 | rc->st = 0; |
3037 | end: | |
3038 | return ((PyObject *)rc); | |
3039 | } | |
3040 | ||
3041 | static PyObject *shake128_pynew(PyTypeObject *ty, | |
3042 | PyObject *arg, PyObject *kw) | |
3043 | { return (shake_dopynew(cshake128_init, ty, arg, kw)); } | |
3044 | ||
3045 | static PyObject *shake256_pynew(PyTypeObject *ty, | |
3046 | PyObject *arg, PyObject *kw) | |
3047 | { return (shake_dopynew(cshake256_init, ty, arg, kw)); } | |
3048 | ||
3049 | static int shake_check(PyObject *me, int st) | |
3050 | { | |
3051 | if (SHAKE_ST(me) != st) VALERR("wrong state"); | |
3052 | return (0); | |
3053 | end: | |
3054 | return (-1); | |
3055 | } | |
3056 | ||
3057 | static PyObject *shakemeth_hash(PyObject *me, PyObject *arg) | |
3058 | { | |
67c75893 MW |
3059 | struct bin m; |
3060 | if (!PyArg_ParseTuple(arg, "O&:hash", convbin, &m)) return (0); | |
6bd22b53 | 3061 | if (shake_check(me, 0)) return (0); |
67c75893 | 3062 | shake_hash(SHAKE_H(me), m.p, m.sz); |
6bd22b53 MW |
3063 | RETURN_ME; |
3064 | } | |
3065 | ||
3066 | #define SHAKEMETH_HASHU_(n, W, w) \ | |
3067 | static PyObject *shakemeth_hashu##w(PyObject *me, PyObject *arg) \ | |
3068 | { \ | |
3069 | uint##n x; \ | |
3070 | octet b[SZ_##W]; \ | |
0e5c668c MW |
3071 | if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) return (0); \ |
3072 | if (shake_check(me, 0)) return (0); \ | |
6bd22b53 MW |
3073 | STORE##W(b, x); shake_hash(SHAKE_H(me), b, sizeof(b)); \ |
3074 | RETURN_ME; \ | |
6bd22b53 MW |
3075 | } |
3076 | DOUINTCONV(SHAKEMETH_HASHU_) | |
3077 | ||
3078 | #define SHAKEMETH_HASHBUF_(n, W, w) \ | |
3079 | static PyObject *shakemeth_hashbuf##w(PyObject *me, PyObject *arg) \ | |
3080 | { \ | |
67c75893 | 3081 | struct bin in; \ |
6bd22b53 | 3082 | octet b[SZ_##W]; \ |
67c75893 | 3083 | if (!PyArg_ParseTuple(arg, "O&:hashbuf" #w, convbin, &in)) goto end; \ |
e01ab3c9 | 3084 | if (in.sz > MASK##n) VALERR("too large"); \ |
6bd22b53 | 3085 | if (shake_check(me, 0)) goto end; \ |
67c75893 MW |
3086 | STORE##W(b, in.sz); shake_hash(SHAKE_H(me), b, sizeof(b)); \ |
3087 | shake_hash(SHAKE_H(me), in.p, in.sz); \ | |
6bd22b53 MW |
3088 | RETURN_ME; \ |
3089 | end: \ | |
3090 | return (0); \ | |
3091 | } | |
3092 | DOUINTCONV(SHAKEMETH_HASHBUF_) | |
3093 | ||
3094 | static PyObject *shakemeth_hashstrz(PyObject *me, PyObject *arg) | |
3095 | { | |
3096 | char *p; | |
3097 | if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0); | |
3098 | if (shake_check(me, 0)) return (0); | |
3099 | shake_hash(SHAKE_H(me), p, strlen(p) + 1); | |
3100 | RETURN_ME; | |
3101 | } | |
3102 | ||
91e56f06 | 3103 | static PyObject *shakemeth_xof(PyObject *me) |
6bd22b53 | 3104 | { |
6bd22b53 MW |
3105 | if (shake_check(me, 0)) goto end; |
3106 | shake_xof(SHAKE_H(me)); | |
3107 | SHAKE_ST(me) = 1; | |
3108 | RETURN_ME; | |
3109 | end: | |
3110 | return (0); | |
3111 | } | |
3112 | ||
aaf8c7aa | 3113 | static PyObject *shakemeth_done(PyObject *me, PyObject *arg, PyObject *kw) |
6bd22b53 MW |
3114 | { |
3115 | PyObject *rc = 0; | |
aaf8c7aa MW |
3116 | size_t n = 100 - SHAKE_H(me)->h.r/2; |
3117 | static const char *const kwlist[] = { "hsz", 0 }; | |
3118 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:done", KWLIST, convszt, &n)) | |
3119 | goto end; | |
6bd22b53 MW |
3120 | if (shake_check(me, 0)) goto end; |
3121 | rc = bytestring_pywrap(0, n); | |
2135a6d3 | 3122 | shake_done(SHAKE_H(me), BIN_PTR(rc), n); |
6bd22b53 MW |
3123 | SHAKE_ST(me) = -1; |
3124 | end: | |
3125 | return (rc); | |
3126 | } | |
3127 | ||
91e56f06 | 3128 | static PyObject *shakemeth_copy(PyObject *me) |
6bd22b53 MW |
3129 | { |
3130 | shake_pyobj *rc = 0; | |
3131 | ||
2a448f86 | 3132 | rc = PyObject_NEW(shake_pyobj, Py_TYPE(me)); |
6bd22b53 MW |
3133 | rc->h = *SHAKE_H(me); |
3134 | rc->st = SHAKE_ST(me); | |
9b5c9816 | 3135 | return ((PyObject *)rc); |
6bd22b53 MW |
3136 | } |
3137 | ||
3138 | static PyObject *shakemeth_get(PyObject *me, PyObject *arg) | |
3139 | { | |
3140 | PyObject *rc = 0; | |
3141 | size_t sz; | |
3142 | ||
3143 | if (!PyArg_ParseTuple(arg, "O&:get", convszt, &sz)) goto end; | |
3144 | if (shake_check(me, 1)) goto end; | |
3145 | rc = bytestring_pywrap(0, sz); | |
2135a6d3 | 3146 | shake_get(SHAKE_H(me), BIN_PTR(rc), sz); |
6bd22b53 MW |
3147 | end: |
3148 | return (rc); | |
3149 | } | |
3150 | ||
3151 | static PyObject *shakemeth_mask(PyObject *me, PyObject *arg) | |
3152 | { | |
3153 | PyObject *rc = 0; | |
67c75893 | 3154 | struct bin in; |
6bd22b53 | 3155 | |
67c75893 | 3156 | if (!PyArg_ParseTuple(arg, "O&:mask", convbin, &in)) goto end; |
6bd22b53 | 3157 | if (shake_check(me, 1)) goto end; |
67c75893 | 3158 | rc = bytestring_pywrap(0, in.sz); |
2135a6d3 | 3159 | shake_mask(SHAKE_H(me), in.p, BIN_PTR(rc), in.sz); |
6bd22b53 MW |
3160 | end: |
3161 | return (rc); | |
3162 | } | |
3163 | ||
6bd22b53 MW |
3164 | static PyObject *shakeget_state(PyObject *me, void *hunoz) |
3165 | { | |
3166 | int st = SHAKE_ST(me); | |
2135a6d3 MW |
3167 | return (TEXT_FROMSTR(st == 0 ? "absorb" : |
3168 | st == 1 ? "squeeze" : "dead")); | |
6bd22b53 MW |
3169 | } |
3170 | ||
8e923c68 MW |
3171 | static const PyMemberDef shake_pymembers[] = { |
3172 | #define MEMBERSTRUCT shake_pyobj | |
3173 | MEMRNM(rate, T_UINT, h.h.r, READONLY, "S.rate -> rate, in bytes") | |
3174 | MEMRNM(buffered, T_UINT, h.h.n, READONLY, | |
3175 | "S.buffered -> amount currently buffered") | |
3176 | #undef MEMBERSTRUCT | |
3177 | { 0 } | |
3178 | }; | |
3179 | ||
c90f712e | 3180 | static const PyGetSetDef shake_pygetset[] = { |
6bd22b53 | 3181 | #define GETSETNAME(op, name) shake##op##_##name |
d96c882e | 3182 | GET (state, "S.state -> `absorb', `squeeze', `dead'") |
6bd22b53 MW |
3183 | #undef GETSETNAME |
3184 | { 0 } | |
3185 | }; | |
3186 | ||
c90f712e | 3187 | static const PyMethodDef shake_pymethods[] = { |
6bd22b53 | 3188 | #define METHNAME(func) shakemeth_##func |
91e56f06 | 3189 | NAMETH(copy, "S.copy() -> SS") |
d96c882e | 3190 | METH (hash, "S.hash(M)") |
6bd22b53 MW |
3191 | #define METHU_(n, W, w) METH(hashu##w, "S.hashu" #w "(WORD)") |
3192 | DOUINTCONV(METHU_) | |
3193 | #undef METHU_ | |
3194 | #define METHBUF_(n, W, w) METH(hashbuf##w, "S.hashbuf" #w "(BYTES)") | |
3195 | DOUINTCONV(METHBUF_) | |
3196 | #undef METHBUF_ | |
d96c882e | 3197 | METH (hashstrz, "S.hashstrz(STRING)") |
91e56f06 | 3198 | NAMETH(xof, "S.xof()") |
aaf8c7aa | 3199 | KWMETH(done, "S.done([hsz = CAP]) -> H") |
d96c882e MW |
3200 | METH (get, "S.get(LEN) -> H") |
3201 | METH (mask, "S.mask(M) -> C") | |
6bd22b53 MW |
3202 | #undef METHNAME |
3203 | { 0 } | |
3204 | }; | |
3205 | ||
c263b05c | 3206 | static const PyTypeObject shake_pytype_skel = { |
591bf41b | 3207 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
6bd22b53 MW |
3208 | "Shake", /* @tp_name@ */ |
3209 | sizeof(shake_pyobj), /* @tp_basicsize@ */ | |
3210 | 0, /* @tp_itemsize@ */ | |
3211 | ||
3212 | 0, /* @tp_dealloc@ */ | |
3213 | 0, /* @tp_print@ */ | |
3214 | 0, /* @tp_getattr@ */ | |
3215 | 0, /* @tp_setattr@ */ | |
3216 | 0, /* @tp_compare@ */ | |
3217 | 0, /* @tp_repr@ */ | |
3218 | 0, /* @tp_as_number@ */ | |
3219 | 0, /* @tp_as_sequence@ */ | |
3220 | 0, /* @tp_as_mapping@ */ | |
3221 | 0, /* @tp_hash@ */ | |
3222 | 0, /* @tp_call@ */ | |
3223 | 0, /* @tp_str@ */ | |
3224 | 0, /* @tp_getattro@ */ | |
3225 | 0, /* @tp_setattro@ */ | |
3226 | 0, /* @tp_as_buffer@ */ | |
3227 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
3228 | Py_TPFLAGS_BASETYPE, | |
3229 | ||
3230 | /* @tp_doc@ */ | |
d96c882e | 3231 | "SHAKE/cSHAKE/KMAC base class.", |
6bd22b53 MW |
3232 | |
3233 | 0, /* @tp_traverse@ */ | |
3234 | 0, /* @tp_clear@ */ | |
3235 | 0, /* @tp_richcompare@ */ | |
3236 | 0, /* @tp_weaklistoffset@ */ | |
3237 | 0, /* @tp_iter@ */ | |
3238 | 0, /* @tp_iternext@ */ | |
c90f712e | 3239 | PYMETHODS(shake), /* @tp_methods@ */ |
8e923c68 | 3240 | PYMEMBERS(shake), /* @tp_members@ */ |
c90f712e | 3241 | PYGETSET(shake), /* @tp_getset@ */ |
6bd22b53 MW |
3242 | 0, /* @tp_base@ */ |
3243 | 0, /* @tp_dict@ */ | |
3244 | 0, /* @tp_descr_get@ */ | |
3245 | 0, /* @tp_descr_set@ */ | |
3246 | 0, /* @tp_dictoffset@ */ | |
3247 | 0, /* @tp_init@ */ | |
3248 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
3249 | abstract_pynew, /* @tp_new@ */ | |
3250 | 0, /* @tp_free@ */ | |
3251 | 0 /* @tp_is_gc@ */ | |
3252 | }; | |
3253 | ||
c263b05c | 3254 | static const PyTypeObject shake128_pytype_skel = { |
591bf41b | 3255 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
6bd22b53 MW |
3256 | "Shake128", /* @tp_name@ */ |
3257 | 0, /* @tp_basicsize@ */ | |
3258 | 0, /* @tp_itemsize@ */ | |
3259 | ||
3260 | 0, /* @tp_dealloc@ */ | |
3261 | 0, /* @tp_print@ */ | |
3262 | 0, /* @tp_getattr@ */ | |
3263 | 0, /* @tp_setattr@ */ | |
3264 | 0, /* @tp_compare@ */ | |
3265 | 0, /* @tp_repr@ */ | |
3266 | 0, /* @tp_as_number@ */ | |
3267 | 0, /* @tp_as_sequence@ */ | |
3268 | 0, /* @tp_as_mapping@ */ | |
3269 | 0, /* @tp_hash@ */ | |
3270 | 0, /* @tp_call@ */ | |
3271 | 0, /* @tp_str@ */ | |
3272 | 0, /* @tp_getattro@ */ | |
3273 | 0, /* @tp_setattro@ */ | |
3274 | 0, /* @tp_as_buffer@ */ | |
3275 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
3276 | Py_TPFLAGS_BASETYPE, | |
3277 | ||
3278 | /* @tp_doc@ */ | |
d96c882e | 3279 | "Shake128([perso = STR], [func = STR]): SHAKE128/cSHAKE128 XOF.", |
6bd22b53 MW |
3280 | |
3281 | 0, /* @tp_traverse@ */ | |
3282 | 0, /* @tp_clear@ */ | |
3283 | 0, /* @tp_richcompare@ */ | |
3284 | 0, /* @tp_weaklistoffset@ */ | |
3285 | 0, /* @tp_iter@ */ | |
3286 | 0, /* @tp_iternext@ */ | |
3287 | 0, /* @tp_methods@ */ | |
3288 | 0, /* @tp_members@ */ | |
3289 | 0, /* @tp_getset@ */ | |
3290 | 0, /* @tp_base@ */ | |
3291 | 0, /* @tp_dict@ */ | |
3292 | 0, /* @tp_descr_get@ */ | |
3293 | 0, /* @tp_descr_set@ */ | |
3294 | 0, /* @tp_dictoffset@ */ | |
3295 | 0, /* @tp_init@ */ | |
3296 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
3297 | shake128_pynew, /* @tp_new@ */ | |
3298 | 0, /* @tp_free@ */ | |
3299 | 0 /* @tp_is_gc@ */ | |
3300 | }; | |
3301 | ||
c263b05c | 3302 | static const PyTypeObject shake256_pytype_skel = { |
591bf41b | 3303 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
6bd22b53 MW |
3304 | "Shake256", /* @tp_name@ */ |
3305 | 0, /* @tp_basicsize@ */ | |
3306 | 0, /* @tp_itemsize@ */ | |
3307 | ||
3308 | 0, /* @tp_dealloc@ */ | |
3309 | 0, /* @tp_print@ */ | |
3310 | 0, /* @tp_getattr@ */ | |
3311 | 0, /* @tp_setattr@ */ | |
3312 | 0, /* @tp_compare@ */ | |
3313 | 0, /* @tp_repr@ */ | |
3314 | 0, /* @tp_as_number@ */ | |
3315 | 0, /* @tp_as_sequence@ */ | |
3316 | 0, /* @tp_as_mapping@ */ | |
3317 | 0, /* @tp_hash@ */ | |
3318 | 0, /* @tp_call@ */ | |
3319 | 0, /* @tp_str@ */ | |
3320 | 0, /* @tp_getattro@ */ | |
3321 | 0, /* @tp_setattro@ */ | |
3322 | 0, /* @tp_as_buffer@ */ | |
3323 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
3324 | Py_TPFLAGS_BASETYPE, | |
3325 | ||
3326 | /* @tp_doc@ */ | |
d96c882e | 3327 | "Shake256([perso = STR], [func = STR]): SHAKE256/cSHAKE256 XOF.", |
6bd22b53 MW |
3328 | |
3329 | 0, /* @tp_traverse@ */ | |
3330 | 0, /* @tp_clear@ */ | |
3331 | 0, /* @tp_richcompare@ */ | |
3332 | 0, /* @tp_weaklistoffset@ */ | |
3333 | 0, /* @tp_iter@ */ | |
3334 | 0, /* @tp_iternext@ */ | |
3335 | 0, /* @tp_methods@ */ | |
3336 | 0, /* @tp_members@ */ | |
3337 | 0, /* @tp_getset@ */ | |
3338 | 0, /* @tp_base@ */ | |
3339 | 0, /* @tp_dict@ */ | |
3340 | 0, /* @tp_descr_get@ */ | |
3341 | 0, /* @tp_descr_set@ */ | |
3342 | 0, /* @tp_dictoffset@ */ | |
3343 | 0, /* @tp_init@ */ | |
3344 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
3345 | shake256_pynew, /* @tp_new@ */ | |
3346 | 0, /* @tp_free@ */ | |
3347 | 0 /* @tp_is_gc@ */ | |
3348 | }; | |
3349 | ||
668b5f54 MW |
3350 | static PyTypeObject *kmac_pytype, *kmac128_pytype, *kmac256_pytype; |
3351 | ||
3352 | static PyObject *kmac_dopynew(void (*initfn)(shake_ctx *, | |
3353 | const void *, size_t, | |
3354 | const void *, size_t), | |
3355 | PyTypeObject *ty, | |
3356 | PyObject *arg, PyObject *kw) | |
3357 | { | |
3358 | shake_pyobj *rc = 0; | |
3359 | PyObject *pobj = Py_None; | |
3360 | struct bin k = { 0, 0 }, p = { 0, 0 }; | |
3361 | static const char *const kwlist[] = { "key", "perso", 0 }; | |
3362 | ||
3363 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O:new", KWLIST, | |
3364 | convbin, &k, &pobj)) | |
3365 | goto end; | |
3366 | if (pobj != Py_None && !convbin(pobj, &p)) goto end; | |
3367 | rc = (shake_pyobj *)ty->tp_alloc(ty, 0); | |
3368 | initfn(&rc->h, p.p, p.sz, k.p, k.sz); | |
3369 | rc->st = 0; | |
3370 | end: | |
3371 | return ((PyObject *)rc); | |
3372 | } | |
3373 | ||
3374 | static PyObject *kmac128_pynew(PyTypeObject *ty, | |
3375 | PyObject *arg, PyObject *kw) | |
3376 | { return (kmac_dopynew(kmac128_init, ty, arg, kw)); } | |
3377 | ||
3378 | static PyObject *kmac256_pynew(PyTypeObject *ty, | |
3379 | PyObject *arg, PyObject *kw) | |
3380 | { return (kmac_dopynew(kmac256_init, ty, arg, kw)); } | |
3381 | ||
3382 | static PyObject *kmacmeth_xof(PyObject *me) | |
3383 | { | |
3384 | if (shake_check(me, 0)) goto end; | |
3385 | kmac_xof(SHAKE_H(me)); | |
3386 | SHAKE_ST(me) = 1; | |
3387 | RETURN_ME; | |
3388 | end: | |
3389 | return (0); | |
3390 | } | |
3391 | ||
3392 | static PyObject *kmacmeth_done(PyObject *me, PyObject *arg, PyObject *kw) | |
3393 | { | |
3394 | PyObject *rc = 0; | |
3395 | size_t n = 100 - SHAKE_H(me)->h.r/2; | |
3396 | static const char *const kwlist[] = { "hsz", 0 }; | |
3397 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:done", KWLIST, convszt, &n)) | |
3398 | goto end; | |
3399 | if (shake_check(me, 0)) goto end; | |
3400 | rc = bytestring_pywrap(0, n); | |
3401 | kmac_done(SHAKE_H(me), BIN_PTR(rc), n); | |
3402 | SHAKE_ST(me) = -1; | |
3403 | end: | |
3404 | return (rc); | |
3405 | } | |
3406 | ||
3407 | static const PyMethodDef kmac_pymethods[] = { | |
3408 | #define METHNAME(func) kmacmeth_##func | |
3409 | NAMETH(xof, "K.xof()") | |
3410 | KWMETH(done, "K.done([hsz = CAP/2]) -> T") | |
3411 | #undef METHNAME | |
3412 | { 0 } | |
3413 | }; | |
3414 | ||
3415 | static const PyTypeObject kmac_pytype_skel = { | |
3416 | PyVarObject_HEAD_INIT(0, 0) /* Header */ | |
3417 | "KMAC", /* @tp_name@ */ | |
3418 | sizeof(shake_pyobj), /* @tp_basicsize@ */ | |
3419 | 0, /* @tp_itemsize@ */ | |
3420 | ||
3421 | 0, /* @tp_dealloc@ */ | |
3422 | 0, /* @tp_print@ */ | |
3423 | 0, /* @tp_getattr@ */ | |
3424 | 0, /* @tp_setattr@ */ | |
3425 | 0, /* @tp_compare@ */ | |
3426 | 0, /* @tp_repr@ */ | |
3427 | 0, /* @tp_as_number@ */ | |
3428 | 0, /* @tp_as_sequence@ */ | |
3429 | 0, /* @tp_as_mapping@ */ | |
3430 | 0, /* @tp_hash@ */ | |
3431 | 0, /* @tp_call@ */ | |
3432 | 0, /* @tp_str@ */ | |
3433 | 0, /* @tp_getattro@ */ | |
3434 | 0, /* @tp_setattro@ */ | |
3435 | 0, /* @tp_as_buffer@ */ | |
3436 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
3437 | Py_TPFLAGS_BASETYPE, | |
3438 | ||
3439 | /* @tp_doc@ */ | |
3440 | "KMAC base class.", | |
3441 | ||
3442 | 0, /* @tp_traverse@ */ | |
3443 | 0, /* @tp_clear@ */ | |
3444 | 0, /* @tp_richcompare@ */ | |
3445 | 0, /* @tp_weaklistoffset@ */ | |
3446 | 0, /* @tp_iter@ */ | |
3447 | 0, /* @tp_iternext@ */ | |
3448 | PYMETHODS(kmac), /* @tp_methods@ */ | |
3449 | 0, /* @tp_members@ */ | |
3450 | 0, /* @tp_getset@ */ | |
3451 | 0, /* @tp_base@ */ | |
3452 | 0, /* @tp_dict@ */ | |
3453 | 0, /* @tp_descr_get@ */ | |
3454 | 0, /* @tp_descr_set@ */ | |
3455 | 0, /* @tp_dictoffset@ */ | |
3456 | 0, /* @tp_init@ */ | |
3457 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
3458 | abstract_pynew, /* @tp_new@ */ | |
3459 | 0, /* @tp_free@ */ | |
3460 | 0 /* @tp_is_gc@ */ | |
3461 | }; | |
3462 | ||
3463 | static const PyTypeObject kmac128_pytype_skel = { | |
3464 | PyVarObject_HEAD_INIT(0, 0) /* Header */ | |
3465 | "KMAC128", /* @tp_name@ */ | |
3466 | 0, /* @tp_basicsize@ */ | |
3467 | 0, /* @tp_itemsize@ */ | |
3468 | ||
3469 | 0, /* @tp_dealloc@ */ | |
3470 | 0, /* @tp_print@ */ | |
3471 | 0, /* @tp_getattr@ */ | |
3472 | 0, /* @tp_setattr@ */ | |
3473 | 0, /* @tp_compare@ */ | |
3474 | 0, /* @tp_repr@ */ | |
3475 | 0, /* @tp_as_number@ */ | |
3476 | 0, /* @tp_as_sequence@ */ | |
3477 | 0, /* @tp_as_mapping@ */ | |
3478 | 0, /* @tp_hash@ */ | |
3479 | 0, /* @tp_call@ */ | |
3480 | 0, /* @tp_str@ */ | |
3481 | 0, /* @tp_getattro@ */ | |
3482 | 0, /* @tp_setattro@ */ | |
3483 | 0, /* @tp_as_buffer@ */ | |
3484 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
3485 | Py_TPFLAGS_BASETYPE, | |
3486 | ||
3487 | /* @tp_doc@ */ | |
3488 | "KMAC128(KEY, [perso = STR]): KMAC XOMAC.", | |
3489 | ||
3490 | 0, /* @tp_traverse@ */ | |
3491 | 0, /* @tp_clear@ */ | |
3492 | 0, /* @tp_richcompare@ */ | |
3493 | 0, /* @tp_weaklistoffset@ */ | |
3494 | 0, /* @tp_iter@ */ | |
3495 | 0, /* @tp_iternext@ */ | |
3496 | 0, /* @tp_methods@ */ | |
3497 | 0, /* @tp_members@ */ | |
3498 | 0, /* @tp_getset@ */ | |
3499 | 0, /* @tp_base@ */ | |
3500 | 0, /* @tp_dict@ */ | |
3501 | 0, /* @tp_descr_get@ */ | |
3502 | 0, /* @tp_descr_set@ */ | |
3503 | 0, /* @tp_dictoffset@ */ | |
3504 | 0, /* @tp_init@ */ | |
3505 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
3506 | kmac128_pynew, /* @tp_new@ */ | |
3507 | 0, /* @tp_free@ */ | |
3508 | 0 /* @tp_is_gc@ */ | |
3509 | }; | |
3510 | ||
3511 | static const PyTypeObject kmac256_pytype_skel = { | |
3512 | PyVarObject_HEAD_INIT(0, 0) /* Header */ | |
3513 | "KMAC256", /* @tp_name@ */ | |
3514 | 0, /* @tp_basicsize@ */ | |
3515 | 0, /* @tp_itemsize@ */ | |
3516 | ||
3517 | 0, /* @tp_dealloc@ */ | |
3518 | 0, /* @tp_print@ */ | |
3519 | 0, /* @tp_getattr@ */ | |
3520 | 0, /* @tp_setattr@ */ | |
3521 | 0, /* @tp_compare@ */ | |
3522 | 0, /* @tp_repr@ */ | |
3523 | 0, /* @tp_as_number@ */ | |
3524 | 0, /* @tp_as_sequence@ */ | |
3525 | 0, /* @tp_as_mapping@ */ | |
3526 | 0, /* @tp_hash@ */ | |
3527 | 0, /* @tp_call@ */ | |
3528 | 0, /* @tp_str@ */ | |
3529 | 0, /* @tp_getattro@ */ | |
3530 | 0, /* @tp_setattro@ */ | |
3531 | 0, /* @tp_as_buffer@ */ | |
3532 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
3533 | Py_TPFLAGS_BASETYPE, | |
3534 | ||
3535 | /* @tp_doc@ */ | |
3536 | "KMAC256(KEY, [perso = STR]): KMAC XOMAC.", | |
3537 | ||
3538 | 0, /* @tp_traverse@ */ | |
3539 | 0, /* @tp_clear@ */ | |
3540 | 0, /* @tp_richcompare@ */ | |
3541 | 0, /* @tp_weaklistoffset@ */ | |
3542 | 0, /* @tp_iter@ */ | |
3543 | 0, /* @tp_iternext@ */ | |
3544 | 0, /* @tp_methods@ */ | |
3545 | 0, /* @tp_members@ */ | |
3546 | 0, /* @tp_getset@ */ | |
3547 | 0, /* @tp_base@ */ | |
3548 | 0, /* @tp_dict@ */ | |
3549 | 0, /* @tp_descr_get@ */ | |
3550 | 0, /* @tp_descr_set@ */ | |
3551 | 0, /* @tp_dictoffset@ */ | |
3552 | 0, /* @tp_init@ */ | |
3553 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
3554 | kmac256_pynew, /* @tp_new@ */ | |
3555 | 0, /* @tp_free@ */ | |
3556 | 0 /* @tp_is_gc@ */ | |
3557 | }; | |
3558 | ||
03ed9abb MW |
3559 | /*----- Pseudorandom permutations -----------------------------------------*/ |
3560 | ||
3561 | static PyTypeObject *gcprp_pytype, *gprp_pytype; | |
3562 | ||
3563 | typedef struct prpinfo { | |
3564 | const char *name; | |
3565 | const octet *keysz; | |
3566 | size_t ctxsz; | |
3567 | size_t blksz; | |
3568 | void (*init)(void *, const void *, size_t); | |
3569 | void (*eblk)(void *, const void *, void *); | |
3570 | void (*dblk)(void *, const void *, void *); | |
3571 | } prpinfo; | |
3572 | ||
3573 | #define PRP_DEF(PRE, pre) \ | |
3574 | static void pre##_prpinit(void *ctx, const void *k, size_t ksz) \ | |
3575 | { pre##_init(ctx, k, ksz); } \ | |
3576 | static void pre##_prpeblk(void *ctx, const void *in, void *out) \ | |
3577 | { \ | |
3578 | uint32 w[PRE##_BLKSZ/4]; BLKC_LOAD(PRE, w, in); \ | |
3579 | pre##_eblk(ctx, w, w); BLKC_STORE(PRE, out, w); \ | |
3580 | } \ | |
3581 | static void pre##_prpdblk(void *ctx, const void *in, void *out) \ | |
3582 | { \ | |
3583 | uint32 w[PRE##_BLKSZ/4]; BLKC_LOAD(PRE, w, in); \ | |
3584 | pre##_dblk(ctx, w, w); BLKC_STORE(PRE, out, w); \ | |
3585 | } \ | |
3586 | static const prpinfo pre##_prpinfo = { \ | |
3587 | #pre, pre##_keysz, sizeof(pre##_ctx), PRE##_BLKSZ, \ | |
3588 | pre##_prpinit, pre##_prpeblk, pre##_prpdblk \ | |
3589 | }; | |
3590 | PRPS(PRP_DEF) | |
3591 | ||
3592 | static const struct prpinfo *const gprptab[] = { | |
3593 | #define PRP_ENTRY(PRE, pre) &pre##_prpinfo, | |
3594 | PRPS(PRP_ENTRY) | |
3595 | 0 | |
b2687a0a | 3596 | }; |
03ed9abb MW |
3597 | |
3598 | typedef struct gcprp_pyobj { | |
3599 | PyHeapTypeObject ty; | |
3600 | const prpinfo *prp; | |
3601 | } gcprp_pyobj; | |
3602 | #define GCPRP_PRP(o) (((gcprp_pyobj *)(o))->prp) | |
3603 | ||
3604 | typedef struct gprp_pyobj { | |
3605 | PyObject_HEAD | |
3606 | const prpinfo *prp; | |
3607 | } gprp_pyobj; | |
3608 | #define GPRP_PRP(o) (((gprp_pyobj *)(o))->prp) | |
3609 | #define GPRP_CTX(o) (((gprp_pyobj *)(o)) + 1) | |
3610 | ||
3611 | typedef struct prp { | |
3612 | const prpinfo *prp; | |
3613 | void *ctx; | |
3614 | } prp; | |
3615 | ||
3616 | static PyObject *gprp_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
3617 | { | |
827f89d7 | 3618 | static const char *const kwlist[] = { "key", 0 }; |
67c75893 | 3619 | struct bin k; |
03ed9abb MW |
3620 | const prpinfo *prp = GCPRP_PRP(ty); |
3621 | PyObject *me; | |
3622 | ||
67c75893 | 3623 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&:new", KWLIST, convbin, &k)) |
03ed9abb | 3624 | goto end; |
67c75893 | 3625 | if (keysz(k.sz, prp->keysz) != k.sz) VALERR("bad key length"); |
03ed9abb MW |
3626 | me = (PyObject *)ty->tp_alloc(ty, 0); |
3627 | GPRP_PRP(me) = prp; | |
67c75893 | 3628 | prp->init(GPRP_CTX(me), k.p, k.sz); |
03ed9abb MW |
3629 | Py_INCREF(me); |
3630 | return (me); | |
3631 | end: | |
b2687a0a | 3632 | return (0); |
03ed9abb MW |
3633 | } |
3634 | ||
3635 | static void gprp_pydealloc(PyObject *me) | |
2a448f86 | 3636 | { Py_DECREF(Py_TYPE(me)); FREEOBJ(me); } |
03ed9abb MW |
3637 | |
3638 | static PyObject *gcprp_pywrap(const prpinfo *prp) | |
3639 | { | |
3640 | gcprp_pyobj *g = newtype(gcprp_pytype, 0, prp->name); | |
3641 | g->prp = prp; | |
24b3d57b MW |
3642 | g->ty.ht_type.tp_basicsize = sizeof(gprp_pyobj) + prp->ctxsz; |
3643 | g->ty.ht_type.tp_base = gprp_pytype; | |
03ed9abb | 3644 | Py_INCREF(gprp_pytype); |
24b3d57b MW |
3645 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
3646 | Py_TPFLAGS_BASETYPE | | |
3647 | Py_TPFLAGS_HEAPTYPE); | |
3648 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
3649 | g->ty.ht_type.tp_free = 0; | |
3650 | g->ty.ht_type.tp_new = gprp_pynew; | |
dc075750 | 3651 | typeready(&g->ty.ht_type); |
03ed9abb MW |
3652 | return ((PyObject *)g); |
3653 | } | |
3654 | ||
3655 | static PyObject *gcpget_name(PyObject *me, void *hunoz) | |
2135a6d3 | 3656 | { return (TEXT_FROMSTR(GCPRP_PRP(me)->name)); } |
03ed9abb MW |
3657 | static PyObject *gcpget_keysz(PyObject *me, void *hunoz) |
3658 | { return (keysz_pywrap(GCPRP_PRP(me)->keysz)); } | |
3659 | static PyObject *gcpget_blksz(PyObject *me, void *hunoz) | |
3660 | { return (PyInt_FromLong(GCPRP_PRP(me)->blksz)); } | |
3661 | ||
3662 | static PyObject *gpmeth_encrypt(PyObject *me, PyObject *arg) | |
3663 | { | |
67c75893 | 3664 | struct bin m; |
03ed9abb MW |
3665 | PyObject *rc = 0; |
3666 | ||
67c75893 MW |
3667 | if (!PyArg_ParseTuple(arg, "O&:encrypt", convbin, &m)) goto end; |
3668 | if (m.sz != GPRP_PRP(me)->blksz) VALERR("incorrect block length"); | |
3669 | rc = bytestring_pywrap(0, m.sz); | |
2135a6d3 | 3670 | GPRP_PRP(me)->eblk(GPRP_CTX(me), m.p, BIN_PTR(rc)); |
03ed9abb MW |
3671 | end: |
3672 | return (rc); | |
3673 | } | |
3674 | ||
3675 | static PyObject *gpmeth_decrypt(PyObject *me, PyObject *arg) | |
3676 | { | |
67c75893 | 3677 | struct bin c; |
03ed9abb MW |
3678 | PyObject *rc = 0; |
3679 | ||
67c75893 MW |
3680 | if (!PyArg_ParseTuple(arg, "O&:decrypt", convbin, &c)) goto end; |
3681 | if (c.sz != GPRP_PRP(me)->blksz) VALERR("incorrect block length"); | |
3682 | rc = bytestring_pywrap(0, c.sz); | |
2135a6d3 | 3683 | GPRP_PRP(me)->dblk(GPRP_CTX(me), c.p, BIN_PTR(rc)); |
03ed9abb MW |
3684 | end: |
3685 | return (rc); | |
3686 | } | |
3687 | ||
c90f712e | 3688 | static const PyGetSetDef gcprp_pygetset[] = { |
03ed9abb | 3689 | #define GETSETNAME(op, name) gcp##op##_##name |
d96c882e MW |
3690 | GET (keysz, "CP.keysz -> acceptable key sizes") |
3691 | GET (blksz, "CP.blksz -> block size") | |
3692 | GET (name, "CP.name -> name of this kind of PRP") | |
03ed9abb MW |
3693 | #undef GETSETNAME |
3694 | { 0 } | |
3695 | }; | |
3696 | ||
c90f712e | 3697 | static const PyMethodDef gprp_pymethods[] = { |
03ed9abb | 3698 | #define METHNAME(name) gpmeth_##name |
d96c882e MW |
3699 | METH (encrypt, "P.encrypt(PT) -> CT") |
3700 | METH (decrypt, "P.decrypt(CT) -> PT") | |
03ed9abb MW |
3701 | #undef METHNAME |
3702 | { 0 } | |
3703 | }; | |
3704 | ||
c263b05c | 3705 | static const PyTypeObject gcprp_pytype_skel = { |
591bf41b | 3706 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
c461c9b3 | 3707 | "GCPRP", /* @tp_name@ */ |
03ed9abb MW |
3708 | sizeof(gcprp_pyobj), /* @tp_basicsize@ */ |
3709 | 0, /* @tp_itemsize@ */ | |
3710 | ||
3711 | 0, /* @tp_dealloc@ */ | |
3712 | 0, /* @tp_print@ */ | |
3713 | 0, /* @tp_getattr@ */ | |
3714 | 0, /* @tp_setattr@ */ | |
3715 | 0, /* @tp_compare@ */ | |
3716 | 0, /* @tp_repr@ */ | |
3717 | 0, /* @tp_as_number@ */ | |
3718 | 0, /* @tp_as_sequence@ */ | |
3719 | 0, /* @tp_as_mapping@ */ | |
3720 | 0, /* @tp_hash@ */ | |
3721 | 0, /* @tp_call@ */ | |
3722 | 0, /* @tp_str@ */ | |
3723 | 0, /* @tp_getattro@ */ | |
3724 | 0, /* @tp_setattro@ */ | |
3725 | 0, /* @tp_as_buffer@ */ | |
3726 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
3727 | Py_TPFLAGS_BASETYPE, | |
3728 | ||
3729 | /* @tp_doc@ */ | |
d96c882e | 3730 | "Pseudorandom permutation metaclass.", |
03ed9abb MW |
3731 | |
3732 | 0, /* @tp_traverse@ */ | |
3733 | 0, /* @tp_clear@ */ | |
3734 | 0, /* @tp_richcompare@ */ | |
3735 | 0, /* @tp_weaklistoffset@ */ | |
3736 | 0, /* @tp_iter@ */ | |
3737 | 0, /* @tp_iternext@ */ | |
3738 | 0, /* @tp_methods@ */ | |
3739 | 0, /* @tp_members@ */ | |
c90f712e | 3740 | PYGETSET(gcprp), /* @tp_getset@ */ |
03ed9abb MW |
3741 | 0, /* @tp_base@ */ |
3742 | 0, /* @tp_dict@ */ | |
3743 | 0, /* @tp_descr_get@ */ | |
3744 | 0, /* @tp_descr_set@ */ | |
3745 | 0, /* @tp_dictoffset@ */ | |
3746 | 0, /* @tp_init@ */ | |
3747 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
3748 | abstract_pynew, /* @tp_new@ */ | |
3749 | 0, /* @tp_free@ */ | |
3750 | 0 /* @tp_is_gc@ */ | |
3751 | }; | |
3752 | ||
c263b05c | 3753 | static const PyTypeObject gprp_pytype_skel = { |
591bf41b | 3754 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
c461c9b3 | 3755 | "GPRP", /* @tp_name@ */ |
03ed9abb MW |
3756 | sizeof(gprp_pyobj), /* @tp_basicsize@ */ |
3757 | 0, /* @tp_itemsize@ */ | |
3758 | ||
3759 | gprp_pydealloc, /* @tp_dealloc@ */ | |
3760 | 0, /* @tp_print@ */ | |
3761 | 0, /* @tp_getattr@ */ | |
3762 | 0, /* @tp_setattr@ */ | |
3763 | 0, /* @tp_compare@ */ | |
3764 | 0, /* @tp_repr@ */ | |
3765 | 0, /* @tp_as_number@ */ | |
3766 | 0, /* @tp_as_sequence@ */ | |
3767 | 0, /* @tp_as_mapping@ */ | |
3768 | 0, /* @tp_hash@ */ | |
3769 | 0, /* @tp_call@ */ | |
3770 | 0, /* @tp_str@ */ | |
3771 | 0, /* @tp_getattro@ */ | |
3772 | 0, /* @tp_setattro@ */ | |
3773 | 0, /* @tp_as_buffer@ */ | |
3774 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
3775 | Py_TPFLAGS_BASETYPE, | |
3776 | ||
3777 | /* @tp_doc@ */ | |
d96c882e | 3778 | "Pseudorandom permutation, abstract base class.", |
03ed9abb MW |
3779 | |
3780 | 0, /* @tp_traverse@ */ | |
3781 | 0, /* @tp_clear@ */ | |
3782 | 0, /* @tp_richcompare@ */ | |
3783 | 0, /* @tp_weaklistoffset@ */ | |
3784 | 0, /* @tp_iter@ */ | |
3785 | 0, /* @tp_iternext@ */ | |
c90f712e | 3786 | PYMETHODS(gprp), /* @tp_methods@ */ |
03ed9abb MW |
3787 | 0, /* @tp_members@ */ |
3788 | 0, /* @tp_getset@ */ | |
3789 | 0, /* @tp_base@ */ | |
3790 | 0, /* @tp_dict@ */ | |
3791 | 0, /* @tp_descr_get@ */ | |
3792 | 0, /* @tp_descr_set@ */ | |
3793 | 0, /* @tp_dictoffset@ */ | |
3794 | 0, /* @tp_init@ */ | |
3795 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
3796 | abstract_pynew, /* @tp_new@ */ | |
3797 | 0, /* @tp_free@ */ | |
3798 | 0 /* @tp_is_gc@ */ | |
3799 | }; | |
3800 | ||
d7ab1bab | 3801 | /*----- Main code ---------------------------------------------------------*/ |
3802 | ||
810542b0 MW |
3803 | static const struct nameval consts[] = { |
3804 | CONST(AEADF_PCHSZ), CONST(AEADF_PCMSZ), CONST(AEADF_PCTSZ), | |
3805 | CONST(AEADF_AADNDEP), CONST(AEADF_AADFIRST), CONST(AEADF_NOAAD), | |
3806 | { 0 } | |
3807 | }; | |
3808 | ||
c90f712e | 3809 | static const PyMethodDef methods[] = { |
89157adc | 3810 | #define METHNAME(func) meth_##func |
d96c882e MW |
3811 | #define METH_HDANCE(hdance, HDance) METH(hdance##_prf, \ |
3812 | "" #hdance "_prf(K, N) -> H: calculate " HDance " hash of N with K") | |
a75e68c9 MW |
3813 | METH_HDANCE(hsalsa20, "HSalsa20") |
3814 | METH_HDANCE(hsalsa2012, "HSalsa20/12") | |
3815 | METH_HDANCE(hsalsa208, "HSalsa20/8") | |
3816 | METH_HDANCE(hchacha20, "HChaCha20") | |
3817 | METH_HDANCE(hchacha12, "HChaCha12") | |
3818 | METH_HDANCE(hchacha8, "HChaCha8") | |
3819 | #undef METH_DANCE | |
89157adc MW |
3820 | #undef METHNAME |
3821 | { 0 } | |
3822 | }; | |
3823 | ||
d7ab1bab | 3824 | void algorithms_pyinit(void) |
3825 | { | |
3826 | INITTYPE(keysz, root); | |
3827 | INITTYPE(keyszany, keysz); | |
3828 | INITTYPE(keyszrange, keysz); | |
3829 | INITTYPE(keyszset, keysz); | |
3830 | INITTYPE(gccipher, type); | |
3831 | INITTYPE(gcipher, root); | |
bebf03ab MW |
3832 | INITTYPE(gcaead, type); |
3833 | INITTYPE(gaeadkey, root); | |
3834 | INITTYPE(gcaeadaad, type); | |
3835 | INITTYPE(gaeadaad, root); | |
3836 | INITTYPE(gcaeadenc, type); | |
3837 | INITTYPE(gaeadenc, root); | |
3838 | INITTYPE(gcaeaddec, type); | |
3839 | INITTYPE(gaeaddec, root); | |
d7ab1bab | 3840 | INITTYPE(gchash, type); |
3841 | INITTYPE(ghash, root); | |
3842 | INITTYPE(gcmac, type); | |
3843 | INITTYPE(gmac, type); | |
3844 | INITTYPE(gmhash, ghash); | |
204d480b MW |
3845 | INITTYPE(poly1305cls, type); |
3846 | INITTYPE_META(poly1305key, type, poly1305cls); | |
3847 | INITTYPE(poly1305hash, root); | |
b35fdbe6 | 3848 | INITTYPE(kxvik, root); |
6bd22b53 MW |
3849 | INITTYPE(shake, root); |
3850 | INITTYPE(shake128, shake); | |
3851 | INITTYPE(shake256, shake); | |
668b5f54 MW |
3852 | INITTYPE(kmac, shake); |
3853 | INITTYPE(kmac128, kmac); | |
3854 | INITTYPE(kmac256, kmac); | |
03ed9abb MW |
3855 | INITTYPE(gcprp, type); |
3856 | INITTYPE(gprp, root); | |
89157adc | 3857 | addmethods(methods); |
d7ab1bab | 3858 | } |
3859 | ||
03ed9abb | 3860 | #define gcprp prpinfo |
a539ffb8 MW |
3861 | #define CLASS_TABLES(_) _(cipher) _(aead) _(hash) _(mac) _(prp) |
3862 | #define TABLE_FNS(pre) \ | |
3863 | static const char *pre##_namefn(const void *p) \ | |
3864 | { const gc##pre *const *cls = p; return (*cls ? (*cls)->name : 0); } \ | |
3865 | static PyObject *pre##_valfn(const void *p) \ | |
3866 | { gc##pre *const*cls = p; return (gc##pre##_pywrap(*cls)); } | |
3867 | CLASS_TABLES(TABLE_FNS) | |
d7ab1bab | 3868 | |
3869 | void algorithms_pyinsert(PyObject *mod) | |
3870 | { | |
3871 | PyObject *d; | |
3872 | INSERT("KeySZ", keysz_pytype); | |
3873 | INSERT("KeySZAny", keyszany_pytype); | |
3874 | INSERT("KeySZRange", keyszrange_pytype); | |
3875 | INSERT("KeySZSet", keyszset_pytype); | |
3876 | INSERT("GCCipher", gccipher_pytype); | |
3877 | INSERT("GCipher", gcipher_pytype); | |
a539ffb8 MW |
3878 | INSERT("gcciphers", make_algtab(gciphertab, sizeof(gccipher *), |
3879 | cipher_namefn, cipher_valfn)); | |
bebf03ab MW |
3880 | INSERT("GCAEAD", gcaead_pytype); |
3881 | INSERT("GAEKey", gaeadkey_pytype); | |
3882 | INSERT("GAEAADClass", gcaeadaad_pytype); | |
3883 | INSERT("GAEAAD", gaeadaad_pytype); | |
3884 | INSERT("GAEEncClass", gcaeadenc_pytype); | |
3885 | INSERT("GAEEnc", gaeadenc_pytype); | |
3886 | INSERT("GAEDecClass", gcaeaddec_pytype); | |
3887 | INSERT("GAEDec", gaeaddec_pytype); | |
a539ffb8 MW |
3888 | INSERT("gcaeads", make_algtab(gaeadtab, sizeof(gcaead *), |
3889 | aead_namefn, aead_valfn)); | |
d7ab1bab | 3890 | INSERT("GCHash", gchash_pytype); |
3891 | INSERT("GHash", ghash_pytype); | |
a539ffb8 MW |
3892 | d = make_algtab(ghashtab, sizeof(gchash *), hash_namefn, hash_valfn); |
3893 | INSERT("gchashes", d); | |
3894 | sha_pyobj = PyMapping_GetItemString(d, "sha"); Py_INCREF(sha_pyobj); | |
3895 | has160_pyobj = PyMapping_GetItemString(d, "has160"); Py_INCREF(has160_pyobj); | |
d7ab1bab | 3896 | INSERT("GCMAC", gcmac_pytype); |
3897 | INSERT("GMAC", gmac_pytype); | |
3898 | INSERT("GMACHash", gmhash_pytype); | |
a539ffb8 MW |
3899 | INSERT("gcmacs", make_algtab(gmactab, sizeof(gcmac *), |
3900 | mac_namefn, mac_valfn)); | |
2edb633e | 3901 | INSERT("_Poly1305Class", poly1305cls_pytype); |
204d480b MW |
3902 | INSERT("poly1305", poly1305key_pytype); |
3903 | INSERT("Poly1305Hash", poly1305hash_pytype); | |
b35fdbe6 | 3904 | INSERT("Keccak1600", kxvik_pytype); |
6bd22b53 MW |
3905 | INSERT("Shake", shake_pytype); |
3906 | INSERT("Shake128", shake128_pytype); | |
3907 | INSERT("Shake256", shake256_pytype); | |
668b5f54 MW |
3908 | INSERT("KMAC", kmac_pytype); |
3909 | INSERT("KMAC128", kmac128_pytype); | |
3910 | INSERT("KMAC256", kmac256_pytype); | |
03ed9abb MW |
3911 | INSERT("GCPRP", gcprp_pytype); |
3912 | INSERT("GPRP", gprp_pytype); | |
a539ffb8 MW |
3913 | INSERT("gcprps", make_algtab(gprptab, sizeof(gcprp *), |
3914 | prp_namefn, prp_valfn)); | |
810542b0 | 3915 | setconstants(mod, consts); |
d7ab1bab | 3916 | } |
3917 | ||
3918 | /*----- That's all, folks -------------------------------------------------*/ |