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" | |
30 | #include "algorithms.h" | |
31 | ||
32 | /*----- Key sizes ---------------------------------------------------------*/ | |
33 | ||
34 | PyTypeObject *keysz_pytype; | |
35 | PyTypeObject *keyszany_pytype, *keyszrange_pytype, *keyszset_pytype; | |
36 | PyObject *sha_pyobj, *has160_pyobj; | |
37 | ||
cfe23cf8 MW |
38 | #ifndef KSZ_OPMASK |
39 | # define KSZ_OPMASK 0x1f | |
40 | #endif | |
41 | ||
42 | #ifndef KSZ_16BIT | |
43 | # define KSZ_16BIT 0x20 | |
44 | #endif | |
45 | ||
d7ab1bab | 46 | PyObject *keysz_pywrap(const octet *k) |
47 | { | |
cfe23cf8 MW |
48 | unsigned op = *k++; |
49 | #define ARG(i) (op&KSZ_16BIT ? LOAD16(k + 2*(i)) : k[i]) | |
50 | switch (op&KSZ_OPMASK) { | |
d7ab1bab | 51 | case KSZ_ANY: { |
52 | keysz_pyobj *o = PyObject_New(keysz_pyobj, keyszany_pytype); | |
cfe23cf8 | 53 | o->dfl = ARG(0); |
d7ab1bab | 54 | return ((PyObject *)o); |
55 | } break; | |
56 | case KSZ_RANGE: { | |
57 | keyszrange_pyobj *o = | |
b2687a0a | 58 | PyObject_New(keyszrange_pyobj, keyszrange_pytype); |
cfe23cf8 MW |
59 | o->dfl = ARG(0); |
60 | o->min = ARG(1); | |
61 | o->max = ARG(2); | |
62 | o->mod = ARG(3); | |
d7ab1bab | 63 | if (!o->mod) o->mod = 1; |
64 | return ((PyObject *)o); | |
65 | } break; | |
66 | case KSZ_SET: { | |
67 | keyszset_pyobj *o = | |
b2687a0a | 68 | PyObject_New(keyszset_pyobj, keyszset_pytype); |
d7ab1bab | 69 | int i, n; |
cfe23cf8 MW |
70 | o->dfl = ARG(0); |
71 | for (i = 0; ARG(i); i++) ; | |
d7ab1bab | 72 | n = i; o->set = PyTuple_New(n); |
73 | for (i = 0; i < n; i++) | |
cfe23cf8 | 74 | PyTuple_SET_ITEM(o->set, i, PyInt_FromLong(ARG(i))); |
d7ab1bab | 75 | return ((PyObject *)o); |
76 | } break; | |
77 | default: | |
78 | abort(); | |
79 | } | |
cfe23cf8 | 80 | #undef ARG |
d7ab1bab | 81 | } |
82 | ||
83 | static PyObject *keyszany_pynew(PyTypeObject *ty, | |
84 | PyObject *arg, PyObject *kw) | |
85 | { | |
86 | char *kwlist[] = { "default", 0 }; | |
87 | int dfl; | |
88 | keysz_pyobj *o; | |
89 | ||
90 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "i:new", kwlist, &dfl)) | |
91 | goto end; | |
92 | if (dfl < 0) VALERR("key size cannot be negative"); | |
93 | o = (keysz_pyobj *)ty->tp_alloc(ty, 0); | |
94 | o->dfl = dfl; | |
95 | return ((PyObject *)o); | |
96 | end: | |
97 | return (0); | |
98 | } | |
99 | ||
100 | static PyObject *keyszrange_pynew(PyTypeObject *ty, | |
101 | PyObject *arg, PyObject *kw) | |
102 | { | |
103 | char *kwlist[] = { "default", "min", "max", "mod", 0 }; | |
104 | int dfl, min = 0, max = 0, mod = 1; | |
105 | keyszrange_pyobj *o; | |
106 | ||
107 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "i|iii:new", kwlist, | |
108 | &dfl, &min, &max, &mod)) | |
109 | goto end; | |
110 | if (dfl < 0 || min < 0 || max < 0) | |
111 | VALERR("key size cannot be negative"); | |
112 | if (min > dfl || (max && dfl > max)) | |
113 | VALERR("bad key size bounds"); | |
114 | if (mod <= 0 || dfl % mod || min % mod || max % mod) | |
115 | VALERR("bad key size modulus"); | |
116 | o = (keyszrange_pyobj *)ty->tp_alloc(ty, 0); | |
117 | o->dfl = dfl; | |
118 | o->min = min; | |
119 | o->max = max; | |
120 | o->mod = mod; | |
121 | return ((PyObject *)o); | |
122 | end: | |
123 | return (0); | |
124 | } | |
125 | ||
126 | static PyObject *keyszset_pynew(PyTypeObject *ty, | |
127 | PyObject *arg, PyObject *kw) | |
128 | { | |
129 | char *kwlist[] = { "default", "set", 0 }; | |
130 | int dfl, i, n, xx; | |
131 | PyObject *set = 0; | |
132 | PyObject *x = 0, *l = 0; | |
133 | keyszset_pyobj *o = 0; | |
134 | ||
135 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "i|O:new", kwlist, | |
136 | &dfl, &set)) | |
137 | goto end; | |
138 | if (!set) set = PyTuple_New(0); | |
139 | else Py_INCREF(set); | |
140 | if (!PySequence_Check(set)) TYERR("want a sequence"); | |
4281a7ee MW |
141 | n = PySequence_Size(set); if (n < 0) goto end; |
142 | l = PyList_New(0); if (!l) goto end; | |
d7ab1bab | 143 | if (dfl < 0) VALERR("key size cannot be negative"); |
144 | x = PyInt_FromLong(dfl); | |
145 | PyList_Append(l, x); | |
146 | Py_DECREF(x); | |
147 | x = 0; | |
148 | for (i = 0; i < n; i++) { | |
149 | if ((x = PySequence_GetItem(set, i)) == 0) goto end; | |
150 | xx = PyInt_AsLong(x); | |
151 | if (PyErr_Occurred()) goto end; | |
152 | if (xx == dfl) continue; | |
153 | if (xx < 0) VALERR("key size cannot be negative"); | |
154 | PyList_Append(l, x); | |
155 | Py_DECREF(x); | |
b2687a0a | 156 | x = 0; |
d7ab1bab | 157 | } |
158 | Py_DECREF(set); | |
159 | if ((set = PySequence_Tuple(l)) == 0) goto end; | |
160 | o = (keyszset_pyobj *)ty->tp_alloc(ty, 0); | |
161 | o->dfl = dfl; | |
162 | o->set = set; | |
163 | Py_INCREF(set); | |
164 | end: | |
165 | Py_XDECREF(set); | |
166 | Py_XDECREF(l); | |
167 | Py_XDECREF(x); | |
168 | return ((PyObject *)o); | |
169 | } | |
170 | ||
171 | static PyObject *kaget_min(PyObject *me, void *hunoz) | |
172 | { return (PyInt_FromLong(0)); } | |
173 | #define kaget_max kaget_min | |
174 | ||
175 | static PyObject *ksget_min(PyObject *me, void *hunoz) | |
176 | { | |
177 | PyObject *set = ((keyszset_pyobj *)me)->set; | |
178 | int i, n, y, x = -1; | |
179 | n = PyTuple_Size(set); | |
180 | for (i = 0; i < n; i++) { | |
181 | y = PyInt_AsLong(PyTuple_GetItem(set, i)); | |
182 | if (x == -1 || y < x) x = y; | |
183 | } | |
184 | return (PyInt_FromLong(x)); | |
185 | } | |
186 | ||
187 | static PyObject *ksget_max(PyObject *me, void *hunoz) | |
188 | { | |
189 | PyObject *set = ((keyszset_pyobj *)me)->set; | |
190 | int i, n, y, x = -1; | |
191 | n = PyTuple_Size(set); | |
192 | for (i = 0; i < n; i++) { | |
193 | y = PyInt_AsLong(PyTuple_GetItem(set, i)); | |
194 | if (y > x) x = y; | |
195 | } | |
196 | return (PyInt_FromLong(x)); | |
197 | } | |
198 | ||
199 | static PyMemberDef keysz_pymembers[] = { | |
200 | #define MEMBERSTRUCT keysz_pyobj | |
201 | #define default dfl /* ugh! */ | |
202 | MEMBER(default, T_INT, READONLY, "KSZ.default -> default key size") | |
203 | #undef default | |
204 | #undef MEMBERSTRUCT | |
205 | { 0 } | |
206 | }; | |
207 | ||
208 | static PyGetSetDef keyszany_pygetset[] = { | |
209 | #define GETSETNAME(op, name) ka##op##_##name | |
210 | GET (min, "KSZ.min -> smallest allowed key size") | |
d050e0fa | 211 | GET (max, "KSZ.max -> largest allowed key size") |
d7ab1bab | 212 | #undef GETSETNAME |
213 | { 0 } | |
214 | }; | |
215 | ||
216 | static PyMemberDef keyszrange_pymembers[] = { | |
217 | #define MEMBERSTRUCT keyszrange_pyobj | |
218 | MEMBER(min, T_INT, READONLY, "KSZ.min -> smallest allowed key size") | |
d050e0fa | 219 | MEMBER(max, T_INT, READONLY, "KSZ.max -> largest allowed key size") |
d7ab1bab | 220 | MEMBER(mod, T_INT, READONLY, |
221 | "KSZ.mod -> key size must be a multiple of this") | |
222 | #undef MEMBERSTRUCT | |
223 | { 0 } | |
224 | }; | |
225 | ||
226 | static PyGetSetDef keyszset_pygetset[] = { | |
227 | #define GETSETNAME(op, name) ks##op##_##name | |
228 | GET (min, "KSZ.min -> smallest allowed key size") | |
d050e0fa | 229 | GET (max, "KSZ.max -> largest allowed key size") |
d7ab1bab | 230 | #undef GETSETNAME |
231 | { 0 } | |
232 | }; | |
233 | ||
234 | static PyMemberDef keyszset_pymembers[] = { | |
235 | #define MEMBERSTRUCT keyszset_pyobj | |
236 | MEMBER(set, T_OBJECT, READONLY, "KSZ.set -> allowed key sizes") | |
237 | #undef MEMBERSTRUCT | |
238 | { 0 } | |
239 | }; | |
240 | ||
241 | static PyTypeObject keysz_pytype_skel = { | |
6d4db0bf | 242 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 243 | "KeySZ", /* @tp_name@ */ |
d7ab1bab | 244 | sizeof(keysz_pyobj), /* @tp_basicsize@ */ |
245 | 0, /* @tp_itemsize@ */ | |
246 | ||
3aa33042 | 247 | 0, /* @tp_dealloc@ */ |
d7ab1bab | 248 | 0, /* @tp_print@ */ |
249 | 0, /* @tp_getattr@ */ | |
250 | 0, /* @tp_setattr@ */ | |
251 | 0, /* @tp_compare@ */ | |
252 | 0, /* @tp_repr@ */ | |
253 | 0, /* @tp_as_number@ */ | |
254 | 0, /* @tp_as_sequence@ */ | |
255 | 0, /* @tp_as_mapping@ */ | |
256 | 0, /* @tp_hash@ */ | |
257 | 0, /* @tp_call@ */ | |
258 | 0, /* @tp_str@ */ | |
259 | 0, /* @tp_getattro@ */ | |
260 | 0, /* @tp_setattro@ */ | |
261 | 0, /* @tp_as_buffer@ */ | |
262 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
263 | Py_TPFLAGS_BASETYPE, | |
264 | ||
265 | /* @tp_doc@ */ | |
266 | "Key size constraints.", | |
267 | ||
268 | 0, /* @tp_traverse@ */ | |
269 | 0, /* @tp_clear@ */ | |
270 | 0, /* @tp_richcompare@ */ | |
271 | 0, /* @tp_weaklistoffset@ */ | |
272 | 0, /* @tp_iter@ */ | |
963a6148 | 273 | 0, /* @tp_iternext@ */ |
d7ab1bab | 274 | 0, /* @tp_methods@ */ |
275 | keysz_pymembers, /* @tp_members@ */ | |
276 | 0, /* @tp_getset@ */ | |
277 | 0, /* @tp_base@ */ | |
278 | 0, /* @tp_dict@ */ | |
279 | 0, /* @tp_descr_get@ */ | |
280 | 0, /* @tp_descr_set@ */ | |
281 | 0, /* @tp_dictoffset@ */ | |
282 | 0, /* @tp_init@ */ | |
283 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
284 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 285 | 0, /* @tp_free@ */ |
d7ab1bab | 286 | 0 /* @tp_is_gc@ */ |
287 | }; | |
288 | ||
289 | static PyTypeObject keyszany_pytype_skel = { | |
6d4db0bf | 290 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 291 | "KeySZAny", /* @tp_name@ */ |
d7ab1bab | 292 | sizeof(keysz_pyobj), /* @tp_basicsize@ */ |
293 | 0, /* @tp_itemsize@ */ | |
294 | ||
3aa33042 | 295 | 0, /* @tp_dealloc@ */ |
d7ab1bab | 296 | 0, /* @tp_print@ */ |
297 | 0, /* @tp_getattr@ */ | |
298 | 0, /* @tp_setattr@ */ | |
299 | 0, /* @tp_compare@ */ | |
300 | 0, /* @tp_repr@ */ | |
301 | 0, /* @tp_as_number@ */ | |
302 | 0, /* @tp_as_sequence@ */ | |
303 | 0, /* @tp_as_mapping@ */ | |
304 | 0, /* @tp_hash@ */ | |
305 | 0, /* @tp_call@ */ | |
306 | 0, /* @tp_str@ */ | |
307 | 0, /* @tp_getattro@ */ | |
308 | 0, /* @tp_setattro@ */ | |
309 | 0, /* @tp_as_buffer@ */ | |
310 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
311 | Py_TPFLAGS_BASETYPE, | |
312 | ||
313 | /* @tp_doc@ */ | |
314 | "Key size constraints. This object imposes no constraints on size.", | |
315 | ||
316 | 0, /* @tp_traverse@ */ | |
317 | 0, /* @tp_clear@ */ | |
318 | 0, /* @tp_richcompare@ */ | |
319 | 0, /* @tp_weaklistoffset@ */ | |
320 | 0, /* @tp_iter@ */ | |
963a6148 | 321 | 0, /* @tp_iternext@ */ |
d7ab1bab | 322 | 0, /* @tp_methods@ */ |
323 | 0, /* @tp_members@ */ | |
324 | keyszany_pygetset, /* @tp_getset@ */ | |
325 | 0, /* @tp_base@ */ | |
326 | 0, /* @tp_dict@ */ | |
327 | 0, /* @tp_descr_get@ */ | |
328 | 0, /* @tp_descr_set@ */ | |
329 | 0, /* @tp_dictoffset@ */ | |
330 | 0, /* @tp_init@ */ | |
331 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
332 | keyszany_pynew, /* @tp_new@ */ | |
3aa33042 | 333 | 0, /* @tp_free@ */ |
d7ab1bab | 334 | 0 /* @tp_is_gc@ */ |
335 | }; | |
336 | ||
337 | static PyTypeObject keyszrange_pytype_skel = { | |
6d4db0bf | 338 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 339 | "KeySZRange", /* @tp_name@ */ |
d7ab1bab | 340 | sizeof(keyszrange_pyobj), /* @tp_basicsize@ */ |
341 | 0, /* @tp_itemsize@ */ | |
342 | ||
3aa33042 | 343 | 0, /* @tp_dealloc@ */ |
d7ab1bab | 344 | 0, /* @tp_print@ */ |
345 | 0, /* @tp_getattr@ */ | |
346 | 0, /* @tp_setattr@ */ | |
347 | 0, /* @tp_compare@ */ | |
348 | 0, /* @tp_repr@ */ | |
349 | 0, /* @tp_as_number@ */ | |
350 | 0, /* @tp_as_sequence@ */ | |
351 | 0, /* @tp_as_mapping@ */ | |
352 | 0, /* @tp_hash@ */ | |
353 | 0, /* @tp_call@ */ | |
354 | 0, /* @tp_str@ */ | |
355 | 0, /* @tp_getattro@ */ | |
356 | 0, /* @tp_setattro@ */ | |
357 | 0, /* @tp_as_buffer@ */ | |
358 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
359 | Py_TPFLAGS_BASETYPE, | |
360 | ||
361 | /* @tp_doc@ */ | |
362 | "Key size constraints. This object asserts minimum and maximum (if\n\ | |
363 | sizes, and requires the key length to be a multiple of some value.", | |
364 | ||
365 | 0, /* @tp_traverse@ */ | |
366 | 0, /* @tp_clear@ */ | |
367 | 0, /* @tp_richcompare@ */ | |
368 | 0, /* @tp_weaklistoffset@ */ | |
369 | 0, /* @tp_iter@ */ | |
963a6148 | 370 | 0, /* @tp_iternext@ */ |
d7ab1bab | 371 | 0, /* @tp_methods@ */ |
372 | keyszrange_pymembers, /* @tp_members@ */ | |
373 | 0, /* @tp_getset@ */ | |
374 | 0, /* @tp_base@ */ | |
375 | 0, /* @tp_dict@ */ | |
376 | 0, /* @tp_descr_get@ */ | |
377 | 0, /* @tp_descr_set@ */ | |
378 | 0, /* @tp_dictoffset@ */ | |
379 | 0, /* @tp_init@ */ | |
380 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
381 | keyszrange_pynew, /* @tp_new@ */ | |
3aa33042 | 382 | 0, /* @tp_free@ */ |
d7ab1bab | 383 | 0 /* @tp_is_gc@ */ |
384 | }; | |
385 | ||
386 | static PyTypeObject keyszset_pytype_skel = { | |
6d4db0bf | 387 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 388 | "KeySZSet", /* @tp_name@ */ |
d7ab1bab | 389 | sizeof(keyszset_pyobj), /* @tp_basicsize@ */ |
390 | 0, /* @tp_itemsize@ */ | |
391 | ||
3aa33042 | 392 | 0, /* @tp_dealloc@ */ |
d7ab1bab | 393 | 0, /* @tp_print@ */ |
394 | 0, /* @tp_getattr@ */ | |
395 | 0, /* @tp_setattr@ */ | |
396 | 0, /* @tp_compare@ */ | |
397 | 0, /* @tp_repr@ */ | |
398 | 0, /* @tp_as_number@ */ | |
399 | 0, /* @tp_as_sequence@ */ | |
400 | 0, /* @tp_as_mapping@ */ | |
401 | 0, /* @tp_hash@ */ | |
402 | 0, /* @tp_call@ */ | |
403 | 0, /* @tp_str@ */ | |
404 | 0, /* @tp_getattro@ */ | |
405 | 0, /* @tp_setattro@ */ | |
406 | 0, /* @tp_as_buffer@ */ | |
407 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
408 | Py_TPFLAGS_BASETYPE, | |
409 | ||
410 | /* @tp_doc@ */ | |
411 | "Key size constraints. This object requires the key to be one of a\n\ | |
412 | few listed sizes.", | |
413 | ||
414 | 0, /* @tp_traverse@ */ | |
415 | 0, /* @tp_clear@ */ | |
416 | 0, /* @tp_richcompare@ */ | |
417 | 0, /* @tp_weaklistoffset@ */ | |
418 | 0, /* @tp_iter@ */ | |
963a6148 | 419 | 0, /* @tp_iternext@ */ |
d7ab1bab | 420 | 0, /* @tp_methods@ */ |
421 | keyszset_pymembers, /* @tp_members@ */ | |
422 | keyszset_pygetset, /* @tp_getset@ */ | |
423 | 0, /* @tp_base@ */ | |
424 | 0, /* @tp_dict@ */ | |
425 | 0, /* @tp_descr_get@ */ | |
426 | 0, /* @tp_descr_set@ */ | |
427 | 0, /* @tp_dictoffset@ */ | |
428 | 0, /* @tp_init@ */ | |
429 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
430 | keyszset_pynew, /* @tp_new@ */ | |
3aa33042 | 431 | 0, /* @tp_free@ */ |
d7ab1bab | 432 | 0 /* @tp_is_gc@ */ |
433 | }; | |
434 | ||
89157adc MW |
435 | #define KSZCONVOP(op) \ |
436 | static PyObject *meth__KeySZ_##op(PyObject *me, PyObject *arg) \ | |
437 | { \ | |
438 | double x, y; \ | |
439 | if (!PyArg_ParseTuple(arg, "Od:" #op, &me, &x)) return (0); \ | |
440 | y = keysz_##op(x); \ | |
441 | return (PyFloat_FromDouble(y)); \ | |
442 | } | |
443 | KSZCONVOP(fromdl) | |
444 | KSZCONVOP(fromschnorr) | |
445 | KSZCONVOP(fromif) | |
446 | KSZCONVOP(fromec) | |
447 | KSZCONVOP(todl) | |
448 | KSZCONVOP(toschnorr) | |
449 | KSZCONVOP(toif) | |
450 | KSZCONVOP(toec) | |
451 | #undef KSZCONVOP | |
452 | ||
d7ab1bab | 453 | /*----- Symmetric encryption ----------------------------------------------*/ |
454 | ||
455 | PyTypeObject *gccipher_pytype, *gcipher_pytype; | |
456 | ||
457 | CONVFUNC(gccipher, gccipher *, GCCIPHER_CC) | |
458 | CONVFUNC(gcipher, gcipher *, GCIPHER_C) | |
459 | ||
460 | PyObject *gcipher_pywrap(PyObject *cobj, gcipher *c, unsigned f) | |
461 | { | |
462 | gcipher_pyobj *g; | |
463 | if (!cobj) cobj = gccipher_pywrap((/*unconst*/ gccipher *)GC_CLASS(c)); | |
464 | else Py_INCREF(cobj); | |
465 | g = PyObject_NEW(gcipher_pyobj, (PyTypeObject *)cobj); | |
466 | g->c = c; | |
467 | g->f = f; | |
b2687a0a | 468 | return ((PyObject *)g); |
d7ab1bab | 469 | } |
470 | ||
471 | static PyObject *gcipher_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
472 | { | |
473 | char *kwlist[] = { "k", 0 }; | |
474 | char *k; | |
6b54260d | 475 | Py_ssize_t sz; |
d7ab1bab | 476 | |
477 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &sz)) | |
478 | goto end; | |
479 | if (keysz(sz, GCCIPHER_CC(ty)->keysz) != sz) VALERR("bad key length"); | |
480 | return (gcipher_pywrap((PyObject *)ty, | |
481 | GC_INIT(GCCIPHER_CC(ty), k, sz), | |
482 | f_freeme)); | |
483 | end: | |
b2687a0a | 484 | return (0); |
d7ab1bab | 485 | } |
486 | ||
487 | PyObject *gccipher_pywrap(gccipher *cc) | |
488 | { | |
df9f8366 | 489 | gccipher_pyobj *g = newtype(gccipher_pytype, 0, cc->name); |
d7ab1bab | 490 | g->cc = cc; |
24b3d57b MW |
491 | g->ty.ht_type.tp_basicsize = sizeof(gcipher_pyobj); |
492 | g->ty.ht_type.tp_base = gcipher_pytype; | |
d7ab1bab | 493 | Py_INCREF(gcipher_pytype); |
24b3d57b MW |
494 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
495 | Py_TPFLAGS_BASETYPE | | |
496 | Py_TPFLAGS_HEAPTYPE); | |
497 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
498 | g->ty.ht_type.tp_free = 0; | |
499 | g->ty.ht_type.tp_new = gcipher_pynew; | |
dc075750 | 500 | typeready(&g->ty.ht_type); |
d7ab1bab | 501 | return ((PyObject *)g); |
502 | } | |
503 | ||
504 | static void gcipher_pydealloc(PyObject *me) | |
505 | { | |
506 | if (GCIPHER_F(me) & f_freeme) | |
507 | GC_DESTROY(GCIPHER_C(me)); | |
508 | Py_DECREF(me->ob_type); | |
3aa33042 | 509 | FREEOBJ(me); |
d7ab1bab | 510 | } |
511 | ||
512 | static PyObject *gccget_name(PyObject *me, void *hunoz) | |
513 | { return (PyString_FromString(GCCIPHER_CC(me)->name)); } | |
514 | ||
515 | static PyObject *gccget_keysz(PyObject *me, void *hunoz) | |
516 | { return (keysz_pywrap(GCCIPHER_CC(me)->keysz)); } | |
517 | ||
518 | static PyObject *gccget_blksz(PyObject *me, void *hunoz) | |
519 | { return (PyInt_FromLong(GCCIPHER_CC(me)->blksz)); } | |
520 | ||
521 | static PyObject *gcmeth_encrypt(PyObject *me, PyObject *arg) | |
522 | { | |
523 | char *p; | |
6b54260d | 524 | Py_ssize_t sz; |
d7ab1bab | 525 | PyObject *rc = 0; |
526 | ||
527 | if (!PyArg_ParseTuple(arg, "s#:encrypt", &p, &sz)) return (0); | |
528 | rc = bytestring_pywrap(0, sz); | |
529 | GC_ENCRYPT(GCIPHER_C(me), p, PyString_AS_STRING(rc), sz); | |
530 | return (rc); | |
531 | } | |
532 | ||
533 | static PyObject *gcmeth_enczero(PyObject *me, PyObject *arg) | |
534 | { | |
535 | char *p; | |
536 | int sz; | |
537 | PyObject *rc = 0; | |
538 | ||
539 | if (!PyArg_ParseTuple(arg, "i:enczero", &sz)) return (0); | |
540 | rc = bytestring_pywrap(0, sz); | |
541 | p = PyString_AS_STRING(rc); | |
542 | memset(p, 0, sz); | |
543 | GC_ENCRYPT(GCIPHER_C(me), p, p, sz); | |
544 | return (rc); | |
545 | } | |
546 | ||
547 | static PyObject *gcmeth_decrypt(PyObject *me, PyObject *arg) | |
548 | { | |
549 | char *p; | |
6b54260d | 550 | Py_ssize_t sz; |
d7ab1bab | 551 | PyObject *rc = 0; |
552 | ||
553 | if (!PyArg_ParseTuple(arg, "s#:decrypt", &p, &sz)) return (0); | |
554 | rc = bytestring_pywrap(0, sz); | |
555 | GC_DECRYPT(GCIPHER_C(me), p, PyString_AS_STRING(rc), sz); | |
556 | return (rc); | |
557 | } | |
558 | ||
559 | static PyObject *gcmeth_deczero(PyObject *me, PyObject *arg) | |
560 | { | |
561 | char *p; | |
562 | int sz; | |
563 | PyObject *rc = 0; | |
564 | ||
565 | if (!PyArg_ParseTuple(arg, "i:deczero", &sz)) return (0); | |
566 | rc = bytestring_pywrap(0, sz); | |
567 | p = PyString_AS_STRING(rc); | |
568 | memset(p, 0, sz); | |
569 | GC_DECRYPT(GCIPHER_C(me), p, p, sz); | |
570 | return (rc); | |
571 | } | |
572 | ||
573 | static PyObject *gcmeth_setiv(PyObject *me, PyObject *arg) | |
574 | { | |
575 | char *p; | |
6b54260d | 576 | Py_ssize_t sz; |
d7ab1bab | 577 | |
578 | if (!PyArg_ParseTuple(arg, "s#:setiv", &p, &sz)) goto end; | |
30eef666 | 579 | if (!GCIPHER_C(me)->ops->setiv) VALERR("`setiv' not supported"); |
d7ab1bab | 580 | if (!GC_CLASS(GCIPHER_C(me))->blksz) VALERR("not a block cipher mode"); |
581 | if (sz != GC_CLASS(GCIPHER_C(me))->blksz) VALERR("bad IV length"); | |
582 | GC_SETIV(GCIPHER_C(me), p); | |
583 | RETURN_ME; | |
584 | end: | |
585 | return (0); | |
586 | } | |
587 | ||
588 | static PyObject *gcmeth_bdry(PyObject *me, PyObject *arg) | |
589 | { | |
590 | if (!PyArg_ParseTuple(arg, ":bdry")) goto end; | |
30eef666 | 591 | if (!GCIPHER_C(me)->ops->bdry) VALERR("`bdry' not supported"); |
d7ab1bab | 592 | if (!GC_CLASS(GCIPHER_C(me))->blksz) VALERR("not a block cipher mode"); |
593 | GC_BDRY(GCIPHER_C(me)); | |
594 | RETURN_ME; | |
595 | end: | |
596 | return (0); | |
597 | } | |
598 | ||
599 | static PyGetSetDef gccipher_pygetset[] = { | |
600 | #define GETSETNAME(op, name) gcc##op##_##name | |
601 | GET (keysz, "CC.keysz -> acceptable key sizes") | |
602 | GET (blksz, "CC.blksz -> block size, or zero") | |
603 | GET (name, "CC.name -> name of this kind of cipher") | |
604 | #undef GETSETNAME | |
605 | { 0 } | |
606 | }; | |
607 | ||
608 | static PyMethodDef gcipher_pymethods[] = { | |
609 | #define METHNAME(name) gcmeth_##name | |
610 | METH (encrypt, "C.encrypt(PT) -> CT") | |
611 | METH (enczero, "C.enczero(N) -> CT") | |
612 | METH (decrypt, "C.decrypt(CT) -> PT") | |
613 | METH (deczero, "C.deczero(N) -> PT") | |
614 | METH (setiv, "C.setiv(IV)") | |
615 | METH (bdry, "C.bdry()") | |
616 | #undef METHNAME | |
617 | { 0 } | |
618 | }; | |
619 | ||
620 | static PyTypeObject gccipher_pytype_skel = { | |
6d4db0bf | 621 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 622 | "GCCipher", /* @tp_name@ */ |
d7ab1bab | 623 | sizeof(gccipher_pyobj), /* @tp_basicsize@ */ |
624 | 0, /* @tp_itemsize@ */ | |
625 | ||
626 | 0, /* @tp_dealloc@ */ | |
627 | 0, /* @tp_print@ */ | |
628 | 0, /* @tp_getattr@ */ | |
629 | 0, /* @tp_setattr@ */ | |
630 | 0, /* @tp_compare@ */ | |
631 | 0, /* @tp_repr@ */ | |
632 | 0, /* @tp_as_number@ */ | |
633 | 0, /* @tp_as_sequence@ */ | |
634 | 0, /* @tp_as_mapping@ */ | |
635 | 0, /* @tp_hash@ */ | |
636 | 0, /* @tp_call@ */ | |
637 | 0, /* @tp_str@ */ | |
638 | 0, /* @tp_getattro@ */ | |
639 | 0, /* @tp_setattro@ */ | |
640 | 0, /* @tp_as_buffer@ */ | |
641 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
642 | Py_TPFLAGS_BASETYPE, | |
643 | ||
644 | /* @tp_doc@ */ | |
645 | "Symmetric cipher metaclass.", | |
646 | ||
647 | 0, /* @tp_traverse@ */ | |
648 | 0, /* @tp_clear@ */ | |
649 | 0, /* @tp_richcompare@ */ | |
650 | 0, /* @tp_weaklistoffset@ */ | |
651 | 0, /* @tp_iter@ */ | |
963a6148 | 652 | 0, /* @tp_iternext@ */ |
d7ab1bab | 653 | 0, /* @tp_methods@ */ |
654 | 0, /* @tp_members@ */ | |
655 | gccipher_pygetset, /* @tp_getset@ */ | |
656 | 0, /* @tp_base@ */ | |
657 | 0, /* @tp_dict@ */ | |
658 | 0, /* @tp_descr_get@ */ | |
659 | 0, /* @tp_descr_set@ */ | |
660 | 0, /* @tp_dictoffset@ */ | |
661 | 0, /* @tp_init@ */ | |
662 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
663 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 664 | 0, /* @tp_free@ */ |
d7ab1bab | 665 | 0 /* @tp_is_gc@ */ |
666 | }; | |
667 | ||
668 | static PyTypeObject gcipher_pytype_skel = { | |
6d4db0bf | 669 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 670 | "GCipher", /* @tp_name@ */ |
d7ab1bab | 671 | sizeof(gcipher_pyobj), /* @tp_basicsize@ */ |
672 | 0, /* @tp_itemsize@ */ | |
673 | ||
674 | gcipher_pydealloc, /* @tp_dealloc@ */ | |
675 | 0, /* @tp_print@ */ | |
676 | 0, /* @tp_getattr@ */ | |
677 | 0, /* @tp_setattr@ */ | |
678 | 0, /* @tp_compare@ */ | |
679 | 0, /* @tp_repr@ */ | |
680 | 0, /* @tp_as_number@ */ | |
681 | 0, /* @tp_as_sequence@ */ | |
682 | 0, /* @tp_as_mapping@ */ | |
683 | 0, /* @tp_hash@ */ | |
684 | 0, /* @tp_call@ */ | |
685 | 0, /* @tp_str@ */ | |
686 | 0, /* @tp_getattro@ */ | |
687 | 0, /* @tp_setattro@ */ | |
688 | 0, /* @tp_as_buffer@ */ | |
689 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
690 | Py_TPFLAGS_BASETYPE, | |
691 | ||
692 | /* @tp_doc@ */ | |
693 | "Symmetric cipher, abstract base class.", | |
694 | ||
695 | 0, /* @tp_traverse@ */ | |
696 | 0, /* @tp_clear@ */ | |
697 | 0, /* @tp_richcompare@ */ | |
698 | 0, /* @tp_weaklistoffset@ */ | |
699 | 0, /* @tp_iter@ */ | |
963a6148 | 700 | 0, /* @tp_iternext@ */ |
d7ab1bab | 701 | gcipher_pymethods, /* @tp_methods@ */ |
702 | 0, /* @tp_members@ */ | |
703 | 0, /* @tp_getset@ */ | |
704 | 0, /* @tp_base@ */ | |
705 | 0, /* @tp_dict@ */ | |
706 | 0, /* @tp_descr_get@ */ | |
707 | 0, /* @tp_descr_set@ */ | |
708 | 0, /* @tp_dictoffset@ */ | |
709 | 0, /* @tp_init@ */ | |
710 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
711 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 712 | 0, /* @tp_free@ */ |
d7ab1bab | 713 | 0 /* @tp_is_gc@ */ |
714 | }; | |
715 | ||
716 | /*----- Hash functions ----------------------------------------------------*/ | |
717 | ||
718 | PyTypeObject *gchash_pytype, *ghash_pytype; | |
719 | ||
720 | CONVFUNC(gchash, gchash *, GCHASH_CH) | |
721 | CONVFUNC(ghash, ghash *, GHASH_H) | |
722 | ||
723 | static PyObject *ghash_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
724 | { | |
725 | char *kwlist[] = { 0 }; | |
726 | if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", kwlist)) | |
727 | goto end; | |
728 | return (ghash_pywrap((PyObject *)ty, GH_INIT(GCHASH_CH(ty)), f_freeme)); | |
729 | end: | |
b2687a0a | 730 | return (0); |
d7ab1bab | 731 | } |
732 | ||
733 | PyObject *gchash_pywrap(gchash *ch) | |
734 | { | |
df9f8366 | 735 | gchash_pyobj *g = newtype(gchash_pytype, 0, ch->name); |
d7ab1bab | 736 | g->ch = ch; |
24b3d57b MW |
737 | g->ty.ht_type.tp_basicsize = sizeof(ghash_pyobj); |
738 | g->ty.ht_type.tp_base = ghash_pytype; | |
d7ab1bab | 739 | Py_INCREF(ghash_pytype); |
24b3d57b MW |
740 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
741 | Py_TPFLAGS_BASETYPE | | |
742 | Py_TPFLAGS_HEAPTYPE); | |
743 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
744 | g->ty.ht_type.tp_free = 0; | |
745 | g->ty.ht_type.tp_new = ghash_pynew; | |
dc075750 | 746 | typeready(&g->ty.ht_type); |
d7ab1bab | 747 | return ((PyObject *)g); |
748 | } | |
749 | ||
750 | PyObject *ghash_pywrap(PyObject *cobj, ghash *h, unsigned f) | |
751 | { | |
752 | ghash_pyobj *g; | |
753 | if (!cobj) cobj = gchash_pywrap((/*unconst*/ gchash *)GH_CLASS(h)); | |
754 | else Py_INCREF(cobj); | |
755 | g = PyObject_NEW(ghash_pyobj, (PyTypeObject *)cobj); | |
756 | g->h = h; | |
757 | g->f = f; | |
b2687a0a | 758 | return ((PyObject *)g); |
d7ab1bab | 759 | } |
760 | ||
761 | static void ghash_pydealloc(PyObject *me) | |
762 | { | |
763 | if (GHASH_F(me) & f_freeme) | |
764 | GH_DESTROY(GHASH_H(me)); | |
765 | Py_DECREF(me->ob_type); | |
3aa33042 | 766 | FREEOBJ(me); |
d7ab1bab | 767 | } |
768 | ||
769 | static PyObject *gchget_name(PyObject *me, void *hunoz) | |
770 | { return (PyString_FromString(GCHASH_CH(me)->name)); } | |
771 | ||
772 | static PyObject *gchget_hashsz(PyObject *me, void *hunoz) | |
773 | { return (PyInt_FromLong(GCHASH_CH(me)->hashsz)); } | |
774 | ||
775 | static PyObject *gchget_bufsz(PyObject *me, void *hunoz) | |
776 | { return (PyInt_FromLong(GCHASH_CH(me)->bufsz)); } | |
777 | ||
778 | static PyObject *ghmeth_hash(PyObject *me, PyObject *arg) | |
779 | { | |
780 | char *p; | |
6b54260d | 781 | Py_ssize_t sz; |
d7ab1bab | 782 | if (!PyArg_ParseTuple(arg, "s#:hash", &p, &sz)) return (0); |
783 | GH_HASH(GHASH_H(me), p, sz); | |
784 | RETURN_ME; | |
785 | } | |
786 | ||
46e6ad89 | 787 | #define GHMETH_HASHU_(n, W, w) \ |
788 | static PyObject *ghmeth_hashu##w(PyObject *me, PyObject *arg) \ | |
789 | { \ | |
790 | uint##n x; \ | |
791 | if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) goto end; \ | |
792 | GH_HASHU##W(GHASH_H(me), x); \ | |
793 | RETURN_ME; \ | |
794 | end: \ | |
795 | return (0); \ | |
796 | } | |
797 | DOUINTCONV(GHMETH_HASHU_) | |
798 | ||
799 | #define GHMETH_HASHBUF_(n, W, w) \ | |
800 | static PyObject *ghmeth_hashbuf##w(PyObject *me, PyObject *arg) \ | |
801 | { \ | |
802 | char *p; \ | |
6b54260d | 803 | Py_ssize_t sz; \ |
46e6ad89 | 804 | if (!PyArg_ParseTuple(arg, "s#:hashbuf" #w, &p, &sz)) goto end; \ |
805 | if (sz > MASK##n) TYERR("string too long"); \ | |
806 | GH_HASHBUF##W(GHASH_H(me), p, sz); \ | |
807 | RETURN_ME; \ | |
808 | end: \ | |
809 | return (0); \ | |
810 | } | |
811 | DOUINTCONV(GHMETH_HASHBUF_) | |
812 | ||
813 | static PyObject *ghmeth_hashstrz(PyObject *me, PyObject *arg) | |
814 | { | |
815 | char *p; | |
816 | if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0); | |
817 | GH_HASHSTRZ(GHASH_H(me), p); | |
818 | RETURN_ME; | |
819 | } | |
820 | ||
07bcd768 MW |
821 | static PyObject *ghmeth_done(PyObject *me, PyObject *arg) |
822 | { | |
823 | ghash *g; | |
824 | PyObject *rc; | |
825 | if (!PyArg_ParseTuple(arg, ":done")) return (0); | |
826 | g = GH_COPY(GHASH_H(me)); | |
827 | rc = bytestring_pywrap(0, g->ops->c->hashsz); | |
828 | GH_DONE(g, PyString_AS_STRING(rc)); | |
829 | GH_DESTROY(g); | |
830 | return (rc); | |
831 | } | |
832 | ||
833 | static PyGetSetDef gchash_pygetset[] = { | |
834 | #define GETSETNAME(op, name) gch##op##_##name | |
835 | GET (bufsz, "CH.bufsz -> hash buffer size, or zero") | |
836 | GET (hashsz, "CH.hashsz -> hash output size") | |
837 | GET (name, "CH.name -> name of this kind of hash") | |
838 | #undef GETSETNAME | |
839 | { 0 } | |
840 | }; | |
841 | ||
d7ab1bab | 842 | static PyMethodDef ghash_pymethods[] = { |
843 | #define METHNAME(name) ghmeth_##name | |
844 | METH (hash, "H.hash(M)") | |
46e6ad89 | 845 | #define METHU_(n, W, w) METH(hashu##w, "H.hashu" #w "(WORD)") |
846 | DOUINTCONV(METHU_) | |
07bcd768 | 847 | #undef METHU_ |
46e6ad89 | 848 | #define METHBUF_(n, W, w) METH(hashbuf##w, "H.hashbuf" #w "(BYTES)") |
849 | DOUINTCONV(METHBUF_) | |
07bcd768 | 850 | #undef METHBUF_ |
46e6ad89 | 851 | METH (hashstrz, "H.hashstrz(STRING)") |
d7ab1bab | 852 | METH (done, "H.done() -> HASH") |
853 | #undef METHNAME | |
854 | { 0 } | |
855 | }; | |
856 | ||
857 | static PyTypeObject gchash_pytype_skel = { | |
6d4db0bf | 858 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 859 | "GCHash", /* @tp_name@ */ |
d7ab1bab | 860 | sizeof(gchash_pyobj), /* @tp_basicsize@ */ |
861 | 0, /* @tp_itemsize@ */ | |
862 | ||
863 | 0, /* @tp_dealloc@ */ | |
864 | 0, /* @tp_print@ */ | |
865 | 0, /* @tp_getattr@ */ | |
866 | 0, /* @tp_setattr@ */ | |
867 | 0, /* @tp_compare@ */ | |
868 | 0, /* @tp_repr@ */ | |
869 | 0, /* @tp_as_number@ */ | |
870 | 0, /* @tp_as_sequence@ */ | |
871 | 0, /* @tp_as_mapping@ */ | |
872 | 0, /* @tp_hash@ */ | |
873 | 0, /* @tp_call@ */ | |
874 | 0, /* @tp_str@ */ | |
875 | 0, /* @tp_getattro@ */ | |
876 | 0, /* @tp_setattro@ */ | |
877 | 0, /* @tp_as_buffer@ */ | |
878 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
879 | Py_TPFLAGS_BASETYPE, | |
880 | ||
881 | /* @tp_doc@ */ | |
882 | "Hash function metaclass.", | |
883 | ||
884 | 0, /* @tp_traverse@ */ | |
885 | 0, /* @tp_clear@ */ | |
886 | 0, /* @tp_richcompare@ */ | |
887 | 0, /* @tp_weaklistoffset@ */ | |
888 | 0, /* @tp_iter@ */ | |
963a6148 | 889 | 0, /* @tp_iternext@ */ |
d7ab1bab | 890 | 0, /* @tp_methods@ */ |
891 | 0, /* @tp_members@ */ | |
892 | gchash_pygetset, /* @tp_getset@ */ | |
893 | 0, /* @tp_base@ */ | |
894 | 0, /* @tp_dict@ */ | |
895 | 0, /* @tp_descr_get@ */ | |
896 | 0, /* @tp_descr_set@ */ | |
897 | 0, /* @tp_dictoffset@ */ | |
898 | 0, /* @tp_init@ */ | |
899 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
900 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 901 | 0, /* @tp_free@ */ |
d7ab1bab | 902 | 0 /* @tp_is_gc@ */ |
903 | }; | |
904 | ||
905 | static PyTypeObject ghash_pytype_skel = { | |
6d4db0bf | 906 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 907 | "GHash", /* @tp_name@ */ |
d7ab1bab | 908 | sizeof(ghash_pyobj), /* @tp_basicsize@ */ |
909 | 0, /* @tp_itemsize@ */ | |
910 | ||
911 | ghash_pydealloc, /* @tp_dealloc@ */ | |
912 | 0, /* @tp_print@ */ | |
913 | 0, /* @tp_getattr@ */ | |
914 | 0, /* @tp_setattr@ */ | |
915 | 0, /* @tp_compare@ */ | |
916 | 0, /* @tp_repr@ */ | |
917 | 0, /* @tp_as_number@ */ | |
918 | 0, /* @tp_as_sequence@ */ | |
919 | 0, /* @tp_as_mapping@ */ | |
920 | 0, /* @tp_hash@ */ | |
921 | 0, /* @tp_call@ */ | |
922 | 0, /* @tp_str@ */ | |
923 | 0, /* @tp_getattro@ */ | |
924 | 0, /* @tp_setattro@ */ | |
925 | 0, /* @tp_as_buffer@ */ | |
926 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
927 | Py_TPFLAGS_BASETYPE, | |
928 | ||
929 | /* @tp_doc@ */ | |
930 | "Hash function, abstract base class.", | |
931 | ||
932 | 0, /* @tp_traverse@ */ | |
933 | 0, /* @tp_clear@ */ | |
934 | 0, /* @tp_richcompare@ */ | |
935 | 0, /* @tp_weaklistoffset@ */ | |
936 | 0, /* @tp_iter@ */ | |
963a6148 | 937 | 0, /* @tp_iternext@ */ |
d7ab1bab | 938 | ghash_pymethods, /* @tp_methods@ */ |
939 | 0, /* @tp_members@ */ | |
940 | 0, /* @tp_getset@ */ | |
941 | 0, /* @tp_base@ */ | |
942 | 0, /* @tp_dict@ */ | |
943 | 0, /* @tp_descr_get@ */ | |
944 | 0, /* @tp_descr_set@ */ | |
945 | 0, /* @tp_dictoffset@ */ | |
946 | 0, /* @tp_init@ */ | |
947 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
948 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 949 | 0, /* @tp_free@ */ |
d7ab1bab | 950 | 0 /* @tp_is_gc@ */ |
951 | }; | |
952 | ||
953 | /*----- Message authentication --------------------------------------------*/ | |
954 | ||
955 | PyTypeObject *gcmac_pytype, *gmac_pytype, *gmhash_pytype; | |
956 | ||
957 | CONVFUNC(gcmac, gcmac *, GCMAC_CM) | |
958 | CONVFUNC(gmac, gmac *, GMAC_M) | |
959 | CONVFUNC(gmhash, ghash *, GHASH_H) | |
960 | ||
961 | static PyObject *gmac_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
962 | { | |
963 | char *kwlist[] = { "k", 0 }; | |
964 | char *k; | |
6b54260d | 965 | Py_ssize_t sz; |
d7ab1bab | 966 | |
967 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &sz)) | |
968 | goto end; | |
969 | if (keysz(sz, GCMAC_CM(ty)->keysz) != sz) VALERR("bad key length"); | |
970 | return (gmac_pywrap((PyObject *)ty, | |
971 | GM_KEY(GCMAC_CM(ty), k, sz), | |
972 | f_freeme)); | |
973 | end: | |
b2687a0a | 974 | return (0); |
d7ab1bab | 975 | } |
976 | ||
977 | static PyObject *gmhash_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
978 | { | |
979 | char *kwlist[] = { 0 }; | |
980 | ghash_pyobj *g; | |
981 | ||
982 | if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", kwlist)) return (0); | |
983 | g = PyObject_NEW(ghash_pyobj, ty); | |
984 | g->h = GM_INIT(GMAC_M(ty)); | |
985 | g->f = f_freeme; | |
986 | Py_INCREF(ty); | |
987 | return ((PyObject *)g); | |
988 | } | |
989 | ||
990 | PyObject *gcmac_pywrap(gcmac *cm) | |
991 | { | |
df9f8366 | 992 | gcmac_pyobj *g = newtype(gcmac_pytype, 0, cm->name); |
d7ab1bab | 993 | g->cm = cm; |
24b3d57b MW |
994 | g->ty.ht_type.tp_basicsize = sizeof(gmac_pyobj); |
995 | g->ty.ht_type.tp_base = gmac_pytype; | |
d7ab1bab | 996 | Py_INCREF(gmac_pytype); |
24b3d57b MW |
997 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
998 | Py_TPFLAGS_BASETYPE | | |
999 | Py_TPFLAGS_HEAPTYPE); | |
1000 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
1001 | g->ty.ht_type.tp_free = 0; | |
1002 | g->ty.ht_type.tp_new = gmac_pynew; | |
dc075750 | 1003 | typeready(&g->ty.ht_type); |
d7ab1bab | 1004 | return ((PyObject *)g); |
1005 | } | |
1006 | ||
1007 | PyObject *gmac_pywrap(PyObject *cobj, gmac *m, unsigned f) | |
1008 | { | |
1009 | gmac_pyobj *g; | |
1010 | if (!cobj) cobj = gcmac_pywrap((/*unconst*/ gcmac *)GM_CLASS(m)); | |
1011 | else Py_INCREF(cobj); | |
df9f8366 | 1012 | g = newtype((PyTypeObject *)cobj, 0, 0); |
828b1388 | 1013 | g->ty.ht_type.tp_basicsize = sizeof(ghash_pyobj); |
24b3d57b MW |
1014 | g->ty.ht_name = PyString_FromFormat("%s(keyed)", m->ops->c->name); |
1015 | g->ty.ht_type.tp_name = PyString_AS_STRING(g->ty.ht_name); | |
1016 | g->ty.ht_type.tp_base = gmhash_pytype; | |
d7ab1bab | 1017 | Py_INCREF(gmac_pytype); |
24b3d57b MW |
1018 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
1019 | Py_TPFLAGS_BASETYPE | | |
1020 | Py_TPFLAGS_HEAPTYPE); | |
1021 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
1022 | g->ty.ht_type.tp_free = 0; | |
1023 | g->ty.ht_type.tp_new = gmhash_pynew; | |
dc075750 | 1024 | typeready(&g->ty.ht_type); |
d7ab1bab | 1025 | g->m = m; |
1026 | g->f = f; | |
b2687a0a | 1027 | return ((PyObject *)g); |
d7ab1bab | 1028 | } |
1029 | ||
1030 | static void gmac_pydealloc(PyObject *me) | |
1031 | { | |
1032 | if (GMAC_F(me) & f_freeme) | |
1033 | GM_DESTROY(GMAC_M(me)); | |
1034 | Py_DECREF(me->ob_type); | |
d7ab1bab | 1035 | PyType_Type.tp_dealloc(me); |
1036 | } | |
1037 | ||
1038 | static PyObject *gcmget_name(PyObject *me, void *hunoz) | |
1039 | { return (PyString_FromString(GCMAC_CM(me)->name)); } | |
1040 | ||
1041 | static PyObject *gcmget_keysz(PyObject *me, void *hunoz) | |
1042 | { return (keysz_pywrap(GCMAC_CM(me)->keysz)); } | |
1043 | ||
1044 | static PyObject *gcmget_tagsz(PyObject *me, void *hunoz) | |
1045 | { return (PyInt_FromLong(GCMAC_CM(me)->hashsz)); } | |
1046 | ||
1047 | static PyGetSetDef gcmac_pygetset[] = { | |
1048 | #define GETSETNAME(op, name) gcm##op##_##name | |
1049 | GET (keysz, "CM.keysz -> acceptable key sizes") | |
1050 | GET (tagsz, "CM.tagsz -> MAC output size") | |
1051 | GET (name, "CM.name -> name of this kind of MAC") | |
1052 | #undef GETSETNAME | |
1053 | { 0 } | |
1054 | }; | |
1055 | ||
1056 | static PyTypeObject gcmac_pytype_skel = { | |
6d4db0bf | 1057 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 1058 | "GCMAC", /* @tp_name@ */ |
d7ab1bab | 1059 | sizeof(gchash_pyobj), /* @tp_basicsize@ */ |
1060 | 0, /* @tp_itemsize@ */ | |
1061 | ||
1062 | 0, /* @tp_dealloc@ */ | |
1063 | 0, /* @tp_print@ */ | |
1064 | 0, /* @tp_getattr@ */ | |
1065 | 0, /* @tp_setattr@ */ | |
1066 | 0, /* @tp_compare@ */ | |
1067 | 0, /* @tp_repr@ */ | |
1068 | 0, /* @tp_as_number@ */ | |
1069 | 0, /* @tp_as_sequence@ */ | |
1070 | 0, /* @tp_as_mapping@ */ | |
1071 | 0, /* @tp_hash@ */ | |
1072 | 0, /* @tp_call@ */ | |
1073 | 0, /* @tp_str@ */ | |
1074 | 0, /* @tp_getattro@ */ | |
1075 | 0, /* @tp_setattro@ */ | |
1076 | 0, /* @tp_as_buffer@ */ | |
1077 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1078 | Py_TPFLAGS_BASETYPE, | |
1079 | ||
1080 | /* @tp_doc@ */ | |
1081 | "Message authentication code metametaclass.", | |
1082 | ||
1083 | 0, /* @tp_traverse@ */ | |
1084 | 0, /* @tp_clear@ */ | |
1085 | 0, /* @tp_richcompare@ */ | |
1086 | 0, /* @tp_weaklistoffset@ */ | |
1087 | 0, /* @tp_iter@ */ | |
963a6148 | 1088 | 0, /* @tp_iternext@ */ |
d7ab1bab | 1089 | 0, /* @tp_methods@ */ |
1090 | 0, /* @tp_members@ */ | |
1091 | gcmac_pygetset, /* @tp_getset@ */ | |
1092 | 0, /* @tp_base@ */ | |
1093 | 0, /* @tp_dict@ */ | |
1094 | 0, /* @tp_descr_get@ */ | |
1095 | 0, /* @tp_descr_set@ */ | |
1096 | 0, /* @tp_dictoffset@ */ | |
1097 | 0, /* @tp_init@ */ | |
1098 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1099 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 1100 | 0, /* @tp_free@ */ |
d7ab1bab | 1101 | 0 /* @tp_is_gc@ */ |
1102 | }; | |
1103 | ||
1104 | static PyTypeObject gmac_pytype_skel = { | |
6d4db0bf | 1105 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 1106 | "GMAC", /* @tp_name@ */ |
d7ab1bab | 1107 | sizeof(gmac_pyobj), /* @tp_basicsize@ */ |
1108 | 0, /* @tp_itemsize@ */ | |
1109 | ||
1110 | gmac_pydealloc, /* @tp_dealloc@ */ | |
1111 | 0, /* @tp_print@ */ | |
1112 | 0, /* @tp_getattr@ */ | |
1113 | 0, /* @tp_setattr@ */ | |
1114 | 0, /* @tp_compare@ */ | |
1115 | 0, /* @tp_repr@ */ | |
1116 | 0, /* @tp_as_number@ */ | |
1117 | 0, /* @tp_as_sequence@ */ | |
1118 | 0, /* @tp_as_mapping@ */ | |
1119 | 0, /* @tp_hash@ */ | |
1120 | 0, /* @tp_call@ */ | |
1121 | 0, /* @tp_str@ */ | |
1122 | 0, /* @tp_getattro@ */ | |
1123 | 0, /* @tp_setattro@ */ | |
1124 | 0, /* @tp_as_buffer@ */ | |
1125 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1126 | Py_TPFLAGS_BASETYPE, | |
1127 | ||
1128 | /* @tp_doc@ */ | |
1129 | "Message authentication code metaclass, abstract base class.", | |
1130 | ||
1131 | 0, /* @tp_traverse@ */ | |
1132 | 0, /* @tp_clear@ */ | |
1133 | 0, /* @tp_richcompare@ */ | |
1134 | 0, /* @tp_weaklistoffset@ */ | |
1135 | 0, /* @tp_iter@ */ | |
963a6148 | 1136 | 0, /* @tp_iternext@ */ |
d7ab1bab | 1137 | 0, /* @tp_methods@ */ |
1138 | 0, /* @tp_members@ */ | |
1139 | 0, /* @tp_getset@ */ | |
1140 | 0, /* @tp_base@ */ | |
1141 | 0, /* @tp_dict@ */ | |
1142 | 0, /* @tp_descr_get@ */ | |
1143 | 0, /* @tp_descr_set@ */ | |
1144 | 0, /* @tp_dictoffset@ */ | |
1145 | 0, /* @tp_init@ */ | |
1146 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1147 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 1148 | 0, /* @tp_free@ */ |
d7ab1bab | 1149 | 0 /* @tp_is_gc@ */ |
1150 | }; | |
1151 | ||
1152 | static PyTypeObject gmhash_pytype_skel = { | |
6d4db0bf | 1153 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 1154 | "GMACHash", /* @tp_name@ */ |
d7ab1bab | 1155 | sizeof(ghash_pyobj), /* @tp_basicsize@ */ |
1156 | 0, /* @tp_itemsize@ */ | |
1157 | ||
1158 | ghash_pydealloc, /* @tp_dealloc@ */ | |
1159 | 0, /* @tp_print@ */ | |
1160 | 0, /* @tp_getattr@ */ | |
1161 | 0, /* @tp_setattr@ */ | |
1162 | 0, /* @tp_compare@ */ | |
1163 | 0, /* @tp_repr@ */ | |
1164 | 0, /* @tp_as_number@ */ | |
1165 | 0, /* @tp_as_sequence@ */ | |
1166 | 0, /* @tp_as_mapping@ */ | |
1167 | 0, /* @tp_hash@ */ | |
1168 | 0, /* @tp_call@ */ | |
1169 | 0, /* @tp_str@ */ | |
1170 | 0, /* @tp_getattro@ */ | |
1171 | 0, /* @tp_setattro@ */ | |
1172 | 0, /* @tp_as_buffer@ */ | |
1173 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1174 | Py_TPFLAGS_BASETYPE, | |
1175 | ||
1176 | /* @tp_doc@ */ | |
1177 | "Message authentication code, abstract base class.", | |
1178 | ||
1179 | 0, /* @tp_traverse@ */ | |
1180 | 0, /* @tp_clear@ */ | |
1181 | 0, /* @tp_richcompare@ */ | |
1182 | 0, /* @tp_weaklistoffset@ */ | |
1183 | 0, /* @tp_iter@ */ | |
963a6148 | 1184 | 0, /* @tp_iternext@ */ |
d7ab1bab | 1185 | 0, /* @tp_methods@ */ |
1186 | 0, /* @tp_members@ */ | |
1187 | 0, /* @tp_getset@ */ | |
1188 | 0, /* @tp_base@ */ | |
1189 | 0, /* @tp_dict@ */ | |
1190 | 0, /* @tp_descr_get@ */ | |
1191 | 0, /* @tp_descr_set@ */ | |
1192 | 0, /* @tp_dictoffset@ */ | |
1193 | 0, /* @tp_init@ */ | |
1194 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1195 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 1196 | 0, /* @tp_free@ */ |
d7ab1bab | 1197 | 0 /* @tp_is_gc@ */ |
1198 | }; | |
1199 | ||
204d480b MW |
1200 | /*----- Special snowflake for Poly1305 ------------------------------------*/ |
1201 | ||
1202 | PyTypeObject *poly1305cls_pytype, *poly1305key_pytype, *poly1305hash_pytype; | |
1203 | ||
1204 | typedef struct poly1305key_pyobj { | |
1205 | PyHeapTypeObject ty; | |
1206 | poly1305_key k; | |
1207 | } poly1305key_pyobj; | |
1208 | ||
1209 | typedef struct poly1305hash_pyobj { | |
1210 | PyObject_HEAD | |
1211 | unsigned f; | |
1212 | #define f_mask 1u | |
1213 | poly1305_ctx ctx; | |
1214 | } poly1305hash_pyobj; | |
1215 | ||
1216 | #define P1305_F(o) (((poly1305hash_pyobj *)(o))->f) | |
1217 | #define P1305_CTX(o) (&((poly1305hash_pyobj *)(o))->ctx) | |
1218 | CONVFUNC(poly1305hash, poly1305_ctx *, P1305_CTX) | |
1219 | ||
1220 | static PyObject *poly1305hash_pynew(PyTypeObject *ty, | |
1221 | PyObject *arg, PyObject *kw) | |
1222 | { | |
1223 | char *kwlist[] = { "mask", 0 }; | |
1224 | poly1305key_pyobj *pk = (poly1305key_pyobj *)ty; | |
1225 | poly1305hash_pyobj *ph; | |
1226 | char *m = 0; | |
6b54260d | 1227 | Py_ssize_t sz; |
204d480b MW |
1228 | |
1229 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|s#:new", kwlist, &m, &sz)) | |
1230 | return (0); | |
1231 | if (m && sz != POLY1305_MASKSZ) VALERR("bad mask length"); | |
1232 | ph = PyObject_NEW(poly1305hash_pyobj, ty); | |
1233 | ph->f = 0; | |
1234 | if (m) ph->f |= f_mask; | |
1235 | poly1305_macinit(&ph->ctx, &pk->k, m); | |
1236 | Py_INCREF(ty); | |
1237 | return ((PyObject *)ph); | |
1238 | end: | |
1239 | return (0); | |
1240 | } | |
1241 | ||
1242 | static PyObject *poly1305key_pynew(PyTypeObject *ty, | |
1243 | PyObject *arg, PyObject *kw) | |
1244 | { | |
1245 | char *kwlist[] = { "k", 0 }; | |
1246 | poly1305key_pyobj *pk; | |
1247 | char *k; | |
6b54260d | 1248 | Py_ssize_t sz; |
204d480b MW |
1249 | |
1250 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &sz)) | |
1251 | goto end; | |
1252 | if (keysz(sz, poly1305_keysz) != sz) VALERR("bad key length"); | |
1253 | ||
1254 | pk = newtype(ty, 0, 0); | |
1255 | pk->ty.ht_name = PyString_FromString("poly1305(keyed)"); | |
1256 | pk->ty.ht_type.tp_basicsize = sizeof(poly1305hash_pyobj); | |
1257 | pk->ty.ht_type.tp_name = PyString_AS_STRING(pk->ty.ht_name); | |
1258 | pk->ty.ht_type.tp_base = poly1305hash_pytype; | |
1259 | Py_INCREF(poly1305key_pytype); | |
1260 | pk->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | | |
1261 | Py_TPFLAGS_BASETYPE | | |
1262 | Py_TPFLAGS_HEAPTYPE); | |
1263 | pk->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
1264 | pk->ty.ht_type.tp_free = 0; | |
1265 | pk->ty.ht_type.tp_new = poly1305hash_pynew; | |
1266 | typeready(&pk->ty.ht_type); | |
1267 | ||
1268 | poly1305_keyinit(&pk->k, k, sz); | |
1269 | return ((PyObject *)pk); | |
1270 | ||
1271 | end: | |
1272 | return (0); | |
1273 | } | |
1274 | ||
1275 | static PyObject *poly1305clsget_name(PyObject *me, void *hunoz) | |
1276 | { return (PyString_FromString("poly1305")); } | |
1277 | ||
1278 | static PyObject *poly1305clsget_keysz(PyObject *me, void *hunoz) | |
1279 | { return (keysz_pywrap(poly1305_keysz)); } | |
1280 | ||
1281 | static PyObject *poly1305clsget_masksz(PyObject *me, void *hunoz) | |
1282 | { return (PyInt_FromLong(POLY1305_MASKSZ)); } | |
1283 | ||
1284 | static PyObject *poly1305clsget_tagsz(PyObject *me, void *hunoz) | |
1285 | { return (PyInt_FromLong(POLY1305_TAGSZ)); } | |
1286 | ||
1287 | static PyObject *polymeth_copy(PyObject *me, PyObject *arg) | |
1288 | { | |
1289 | poly1305hash_pyobj *ph; | |
1290 | if (!PyArg_ParseTuple(arg, ":copy")) return (0); | |
1291 | ph = PyObject_NEW(poly1305hash_pyobj, me->ob_type); | |
1292 | poly1305_copy(&ph->ctx, P1305_CTX(me)); | |
1293 | Py_INCREF(me->ob_type); | |
1294 | return ((PyObject *)ph); | |
1295 | } | |
1296 | ||
1297 | static PyObject *polymeth_hash(PyObject *me, PyObject *arg) | |
1298 | { | |
1299 | char *p; | |
6b54260d | 1300 | Py_ssize_t sz; |
204d480b MW |
1301 | if (!PyArg_ParseTuple(arg, "s#:hash", &p, &sz)) return (0); |
1302 | poly1305_hash(P1305_CTX(me), p, sz); | |
1303 | RETURN_ME; | |
1304 | } | |
1305 | ||
1306 | #define POLYMETH_HASHU_(n, W, w) \ | |
1307 | static PyObject *polymeth_hashu##w(PyObject *me, PyObject *arg) \ | |
1308 | { \ | |
1309 | uint##n x; \ | |
1310 | octet b[SZ_##W]; \ | |
1311 | if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) goto end; \ | |
0c87e818 | 1312 | STORE##W(b, x); poly1305_hash(P1305_CTX(me), b, sizeof(b)); \ |
204d480b MW |
1313 | RETURN_ME; \ |
1314 | end: \ | |
1315 | return (0); \ | |
1316 | } | |
1317 | DOUINTCONV(POLYMETH_HASHU_) | |
1318 | ||
1319 | #define POLYMETH_HASHBUF_(n, W, w) \ | |
1320 | static PyObject *polymeth_hashbuf##w(PyObject *me, PyObject *arg) \ | |
1321 | { \ | |
1322 | char *p; \ | |
6b54260d | 1323 | Py_ssize_t sz; \ |
204d480b MW |
1324 | octet b[SZ_##W]; \ |
1325 | if (!PyArg_ParseTuple(arg, "s#:hashbuf" #w, &p, &sz)) goto end; \ | |
1326 | if (sz > MASK##n) TYERR("string too long"); \ | |
0c87e818 | 1327 | STORE##W(b, sz); poly1305_hash(P1305_CTX(me), b, sizeof(b)); \ |
204d480b MW |
1328 | poly1305_hash(P1305_CTX(me), p, sz); \ |
1329 | RETURN_ME; \ | |
1330 | end: \ | |
1331 | return (0); \ | |
1332 | } | |
1333 | DOUINTCONV(POLYMETH_HASHBUF_) | |
1334 | ||
1335 | static PyObject *polymeth_hashstrz(PyObject *me, PyObject *arg) | |
1336 | { | |
1337 | char *p; | |
1338 | if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0); | |
1339 | poly1305_hash(P1305_CTX(me), p, strlen(p) + 1); | |
1340 | RETURN_ME; | |
1341 | } | |
1342 | ||
1343 | static PyObject *polymeth_flush(PyObject *me, PyObject *arg) | |
1344 | { | |
1345 | if (!PyArg_ParseTuple(arg, ":flush")) return (0); | |
1346 | poly1305_flush(P1305_CTX(me)); | |
1347 | RETURN_ME; | |
1348 | } | |
1349 | ||
5c17375a MW |
1350 | static PyObject *polymeth_flushzero(PyObject *me, PyObject *arg) |
1351 | { | |
1352 | if (!PyArg_ParseTuple(arg, ":flushzero")) return (0); | |
1353 | poly1305_flushzero(P1305_CTX(me)); | |
1354 | RETURN_ME; | |
1355 | } | |
1356 | ||
204d480b MW |
1357 | static PyObject *polymeth_concat(PyObject *me, PyObject *arg) |
1358 | { | |
1359 | PyObject *pre, *suff; | |
1360 | if (!PyArg_ParseTuple(arg, "OO:concat", &pre, &suff)) return (0); | |
1361 | if (!PyObject_TypeCheck(pre, poly1305hash_pytype) || | |
1362 | !PyObject_TypeCheck(suff, poly1305hash_pytype)) | |
1363 | TYERR("wanted a poly1305hash"); | |
1364 | if (me->ob_type != pre->ob_type || me->ob_type != suff->ob_type) | |
1365 | TYERR("key mismatch"); | |
1366 | if (P1305_CTX(pre)->nbuf) VALERR("prefix is not block-aligned"); | |
1367 | poly1305_concat(P1305_CTX(me), P1305_CTX(pre), P1305_CTX(suff)); | |
1368 | RETURN_ME; | |
1369 | end: | |
1370 | return (0); | |
1371 | } | |
1372 | ||
1373 | static PyObject *polymeth_done(PyObject *me, PyObject *arg) | |
1374 | { | |
1375 | PyObject *rc; | |
1376 | if (!PyArg_ParseTuple(arg, ":done")) return (0); | |
1377 | if (!(P1305_F(me) & f_mask)) VALERR("no mask"); | |
1378 | rc = bytestring_pywrap(0, POLY1305_TAGSZ); | |
1379 | poly1305_done(P1305_CTX(me), PyString_AS_STRING(rc)); | |
1380 | return (rc); | |
1381 | end: | |
1382 | return (0); | |
1383 | } | |
1384 | ||
1385 | static PyGetSetDef poly1305cls_pygetset[] = { | |
1386 | #define GETSETNAME(op, name) poly1305cls##op##_##name | |
1387 | GET (keysz, "PC.keysz -> acceptable key sizes") | |
1388 | GET (masksz, "PC.masksz -> mask size") | |
1389 | GET (tagsz, "PC.tagsz -> MAC output size") | |
1390 | GET (name, "PC.name -> name of this kind of MAC") | |
1391 | #undef GETSETNAME | |
1392 | { 0 } | |
1393 | }; | |
1394 | ||
1395 | static PyMethodDef poly1305hash_pymethods[] = { | |
1396 | #define METHNAME(name) polymeth_##name | |
1397 | METH (copy, "P.copy() -> PP") | |
1398 | METH (hash, "P.hash(M)") | |
1399 | #define METHU_(n, W, w) METH(hashu##w, "P.hashu" #w "(WORD)") | |
1400 | DOUINTCONV(METHU_) | |
1401 | #undef METHU_ | |
1402 | #define METHBUF_(n, W, w) METH(hashbuf##w, "P.hashbuf" #w "(BYTES)") | |
1403 | DOUINTCONV(METHBUF_) | |
1404 | #undef METHBUF_ | |
1405 | METH (hashstrz, "P.hashstrz(STRING)") | |
1406 | METH (flush, "P.flush()") | |
5c17375a | 1407 | METH (flushzero, "P.flushzero()") |
204d480b MW |
1408 | METH (concat, "P.concat(PREFIX, SUFFIX)") |
1409 | METH (done, "P.done() -> TAG") | |
1410 | #undef METHNAME | |
1411 | { 0 } | |
1412 | }; | |
1413 | ||
1414 | static PyTypeObject poly1305cls_pytype_skel = { | |
1415 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
1416 | "Poly1305Class", /* @tp_name@ */ | |
1417 | sizeof(PyHeapTypeObject), /* @tp_basicsize@ */ | |
1418 | 0, /* @tp_itemsize@ */ | |
1419 | ||
1420 | 0, /* @tp_dealloc@ */ | |
1421 | 0, /* @tp_print@ */ | |
1422 | 0, /* @tp_getattr@ */ | |
1423 | 0, /* @tp_setattr@ */ | |
1424 | 0, /* @tp_compare@ */ | |
1425 | 0, /* @tp_repr@ */ | |
1426 | 0, /* @tp_as_number@ */ | |
1427 | 0, /* @tp_as_sequence@ */ | |
1428 | 0, /* @tp_as_mapping@ */ | |
1429 | 0, /* @tp_hash@ */ | |
1430 | 0, /* @tp_call@ */ | |
1431 | 0, /* @tp_str@ */ | |
1432 | 0, /* @tp_getattro@ */ | |
1433 | 0, /* @tp_setattro@ */ | |
1434 | 0, /* @tp_as_buffer@ */ | |
1435 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1436 | Py_TPFLAGS_BASETYPE, | |
1437 | ||
1438 | /* @tp_doc@ */ | |
1439 | "Poly1305 metametaclass. Best not to ask.", | |
1440 | ||
1441 | 0, /* @tp_traverse@ */ | |
1442 | 0, /* @tp_clear@ */ | |
1443 | 0, /* @tp_richcompare@ */ | |
1444 | 0, /* @tp_weaklistoffset@ */ | |
1445 | 0, /* @tp_iter@ */ | |
1446 | 0, /* @tp_iternext@ */ | |
1447 | 0, /* @tp_methods@ */ | |
1448 | 0, /* @tp_members@ */ | |
1449 | poly1305cls_pygetset, /* @tp_getset@ */ | |
1450 | 0, /* @tp_base@ */ | |
1451 | 0, /* @tp_dict@ */ | |
1452 | 0, /* @tp_descr_get@ */ | |
1453 | 0, /* @tp_descr_set@ */ | |
1454 | 0, /* @tp_dictoffset@ */ | |
1455 | 0, /* @tp_init@ */ | |
1456 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1457 | abstract_pynew, /* @tp_new@ */ | |
1458 | 0, /* @tp_free@ */ | |
1459 | 0 /* @tp_is_gc@ */ | |
1460 | }; | |
1461 | ||
1462 | static PyTypeObject poly1305key_pytype_skel = { | |
1463 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
1464 | "poly1305", /* @tp_name@ */ | |
1465 | sizeof(poly1305key_pyobj), /* @tp_basicsize@ */ | |
1466 | 0, /* @tp_itemsize@ */ | |
1467 | ||
1468 | 0, /* @tp_dealloc@ */ | |
1469 | 0, /* @tp_print@ */ | |
1470 | 0, /* @tp_getattr@ */ | |
1471 | 0, /* @tp_setattr@ */ | |
1472 | 0, /* @tp_compare@ */ | |
1473 | 0, /* @tp_repr@ */ | |
1474 | 0, /* @tp_as_number@ */ | |
1475 | 0, /* @tp_as_sequence@ */ | |
1476 | 0, /* @tp_as_mapping@ */ | |
1477 | 0, /* @tp_hash@ */ | |
1478 | 0, /* @tp_call@ */ | |
1479 | 0, /* @tp_str@ */ | |
1480 | 0, /* @tp_getattro@ */ | |
1481 | 0, /* @tp_setattro@ */ | |
1482 | 0, /* @tp_as_buffer@ */ | |
1483 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1484 | Py_TPFLAGS_BASETYPE, | |
1485 | ||
1486 | /* @tp_doc@ */ | |
1487 | "Poly1305 key.", | |
1488 | ||
1489 | 0, /* @tp_traverse@ */ | |
1490 | 0, /* @tp_clear@ */ | |
1491 | 0, /* @tp_richcompare@ */ | |
1492 | 0, /* @tp_weaklistoffset@ */ | |
1493 | 0, /* @tp_iter@ */ | |
1494 | 0, /* @tp_iternext@ */ | |
1495 | 0, /* @tp_methods@ */ | |
1496 | 0, /* @tp_members@ */ | |
1497 | 0, /* @tp_getset@ */ | |
1498 | 0, /* @tp_base@ */ | |
1499 | 0, /* @tp_dict@ */ | |
1500 | 0, /* @tp_descr_get@ */ | |
1501 | 0, /* @tp_descr_set@ */ | |
1502 | 0, /* @tp_dictoffset@ */ | |
1503 | 0, /* @tp_init@ */ | |
1504 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1505 | poly1305key_pynew, /* @tp_new@ */ | |
1506 | 0, /* @tp_free@ */ | |
1507 | 0 /* @tp_is_gc@ */ | |
1508 | }; | |
1509 | ||
1510 | static PyTypeObject poly1305hash_pytype_skel = { | |
1511 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
1512 | "Poly1305Hash", /* @tp_name@ */ | |
1513 | sizeof(poly1305hash_pyobj), /* @tp_basicsize@ */ | |
1514 | 0, /* @tp_itemsize@ */ | |
1515 | ||
1516 | 0, /* @tp_dealloc@ */ | |
1517 | 0, /* @tp_print@ */ | |
1518 | 0, /* @tp_getattr@ */ | |
1519 | 0, /* @tp_setattr@ */ | |
1520 | 0, /* @tp_compare@ */ | |
1521 | 0, /* @tp_repr@ */ | |
1522 | 0, /* @tp_as_number@ */ | |
1523 | 0, /* @tp_as_sequence@ */ | |
1524 | 0, /* @tp_as_mapping@ */ | |
1525 | 0, /* @tp_hash@ */ | |
1526 | 0, /* @tp_call@ */ | |
1527 | 0, /* @tp_str@ */ | |
1528 | 0, /* @tp_getattro@ */ | |
1529 | 0, /* @tp_setattro@ */ | |
1530 | 0, /* @tp_as_buffer@ */ | |
1531 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1532 | Py_TPFLAGS_BASETYPE, | |
1533 | ||
1534 | /* @tp_doc@ */ | |
1535 | "Poly1305 MAC context base class.", | |
1536 | ||
1537 | 0, /* @tp_traverse@ */ | |
1538 | 0, /* @tp_clear@ */ | |
1539 | 0, /* @tp_richcompare@ */ | |
1540 | 0, /* @tp_weaklistoffset@ */ | |
1541 | 0, /* @tp_iter@ */ | |
1542 | 0, /* @tp_iternext@ */ | |
1543 | poly1305hash_pymethods, /* @tp_methods@ */ | |
1544 | 0, /* @tp_members@ */ | |
1545 | 0, /* @tp_getset@ */ | |
1546 | 0, /* @tp_base@ */ | |
1547 | 0, /* @tp_dict@ */ | |
1548 | 0, /* @tp_descr_get@ */ | |
1549 | 0, /* @tp_descr_set@ */ | |
1550 | 0, /* @tp_dictoffset@ */ | |
1551 | 0, /* @tp_init@ */ | |
1552 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1553 | abstract_pynew, /* @tp_new@ */ | |
1554 | 0, /* @tp_free@ */ | |
1555 | 0 /* @tp_is_gc@ */ | |
1556 | }; | |
1557 | ||
a75e68c9 MW |
1558 | /*----- Special snowflake for HSalsa and HChaCha --------------------------*/ |
1559 | ||
1560 | #define DEF_HDANCE(DANCE, HDANCE, dance, hdance) \ | |
1561 | static PyObject *meth_##hdance##_prf(PyObject *me, PyObject *arg) \ | |
1562 | { \ | |
1563 | dance##_ctx dance; \ | |
1564 | char *k, *n; \ | |
6b54260d | 1565 | Py_ssize_t ksz, nsz; \ |
a75e68c9 MW |
1566 | PyObject *rc; \ |
1567 | if (!PyArg_ParseTuple(arg, "s#s#:" #hdance "_prf", \ | |
1568 | &k, &ksz, &n, &nsz)) \ | |
1569 | goto end; \ | |
0b7c311a | 1570 | if (ksz != keysz(ksz, dance##_keysz)) VALERR("bad key length"); \ |
a75e68c9 MW |
1571 | if (nsz != HDANCE##_INSZ) VALERR("bad input length"); \ |
1572 | rc = bytestring_pywrap(0, HSALSA20_OUTSZ); \ | |
1573 | dance##_init(&dance, k, ksz, 0); \ | |
1574 | hdance##_prf(&dance, n, PyString_AS_STRING(rc)); \ | |
1575 | return (rc); \ | |
1576 | end: \ | |
1577 | return (0); \ | |
1578 | } | |
1579 | ||
1580 | DEF_HDANCE(SALSA20, HSALSA20, salsa20, hsalsa20) | |
1581 | DEF_HDANCE(SALSA20, HSALSA20, salsa20, hsalsa2012) | |
1582 | DEF_HDANCE(SALSA20, HSALSA20, salsa20, hsalsa208) | |
1583 | ||
1584 | DEF_HDANCE(CHACHA, HCHACHA, chacha, hchacha20) | |
1585 | DEF_HDANCE(CHACHA, HCHACHA, chacha, hchacha12) | |
1586 | DEF_HDANCE(CHACHA, HCHACHA, chacha, hchacha8) | |
204d480b | 1587 | |
b35fdbe6 MW |
1588 | /*----- Keccak-p[1600, n] -------------------------------------------------*/ |
1589 | ||
1590 | static PyTypeObject *kxvik_pytype; | |
1591 | ||
1592 | typedef struct kxvik_pyobj { | |
1593 | PyObject_HEAD | |
1594 | keccak1600_state s; | |
1595 | unsigned n; | |
1596 | } kxvik_pyobj; | |
1597 | ||
1598 | static PyObject *kxvik_pynew(PyTypeObject *ty, | |
1599 | PyObject *arg, PyObject *kw) | |
1600 | { | |
1601 | unsigned n = 24; | |
1602 | kxvik_pyobj *rc = 0; | |
1603 | char *kwlist[] = { "nround", 0 }; | |
1604 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:new", kwlist, | |
1605 | convuint, &n)) | |
1606 | goto end; | |
1607 | rc = (kxvik_pyobj *)ty->tp_alloc(ty, 0); | |
1608 | rc->n = n; | |
1609 | keccak1600_init(&rc->s); | |
1610 | end: | |
1611 | return ((PyObject *)rc); | |
1612 | } | |
1613 | ||
1614 | static PyObject *kxvikmeth_mix(PyObject *me, PyObject *arg) | |
1615 | { | |
1616 | kxvik_pyobj *k = (kxvik_pyobj *)me; | |
1617 | kludge64 t[25]; | |
1618 | const octet *q; | |
1619 | octet buf[8]; | |
1620 | unsigned i; | |
1621 | char *p; Py_ssize_t n; | |
1622 | ||
1623 | if (!PyArg_ParseTuple(arg, "s#:mix", &p, &n)) goto end; | |
1624 | if (n > 200) VALERR("out of range"); | |
1625 | q = (const octet *)p; | |
1626 | i = 0; | |
1627 | while (n > 8) { LOAD64_L_(t[i], q); i++; q += 8; n -= 8; } | |
1628 | if (n) { | |
1629 | memcpy(buf, q, n); memset(buf + n, 0, 8 - n); | |
1630 | LOAD64_L_(t[i], buf); i++; | |
1631 | } | |
1632 | keccak1600_mix(&k->s, t, i); | |
1633 | RETURN_ME; | |
1634 | end: | |
1635 | return (0); | |
1636 | } | |
1637 | ||
1638 | static PyObject *kxvikmeth_extract(PyObject *me, PyObject *arg) | |
1639 | { | |
1640 | kxvik_pyobj *k = (kxvik_pyobj *)me; | |
1641 | PyObject *rc = 0; | |
1642 | kludge64 t[25]; | |
1643 | octet *q, buf[8]; | |
1644 | unsigned i; | |
1645 | unsigned n; | |
1646 | ||
ae5dbbad | 1647 | if (!PyArg_ParseTuple(arg, "O&:extract", convuint, &n)) goto end; |
b35fdbe6 MW |
1648 | if (n > 200) VALERR("out of range"); |
1649 | rc = bytestring_pywrap(0, n); | |
1650 | q = (octet *)PyString_AS_STRING(rc); | |
1651 | keccak1600_extract(&k->s, t, (n + 7)/8); | |
1652 | i = 0; | |
1653 | while (n > 8) { STORE64_L_(q, t[i]); i++; q += 8; n -= 8; } | |
1654 | if (n) { STORE64_L_(buf, t[i]); memcpy(q, buf, n); } | |
1655 | end: | |
1656 | return (rc); | |
1657 | } | |
1658 | ||
1659 | static PyObject *kxvikmeth_step(PyObject *me, PyObject *arg) | |
1660 | { | |
1661 | kxvik_pyobj *k = (kxvik_pyobj *)me; | |
1662 | if (!PyArg_ParseTuple(arg, ":step")) return (0); | |
1663 | keccak1600_p(&k->s, &k->s, k->n); | |
1664 | RETURN_ME; | |
1665 | } | |
1666 | ||
1667 | static PyObject *kxvikget_nround(PyObject *me, void *hunoz) | |
1668 | { | |
1669 | kxvik_pyobj *k = (kxvik_pyobj *)me; | |
1670 | return (PyInt_FromLong(k->n)); | |
1671 | } | |
1672 | ||
1673 | static int kxvikset_nround(PyObject *me, PyObject *val, void *hunoz) | |
1674 | { | |
1675 | kxvik_pyobj *k = (kxvik_pyobj *)me; | |
1676 | unsigned n; | |
d26c1ca8 | 1677 | int rc = -1; |
b35fdbe6 | 1678 | |
d26c1ca8 MW |
1679 | if (!val) NIERR("__del__"); |
1680 | if (!convuint(val, &n)) goto end; | |
b35fdbe6 | 1681 | k->n = n; |
d26c1ca8 MW |
1682 | rc = 0; |
1683 | end: | |
1684 | return (rc); | |
b35fdbe6 MW |
1685 | } |
1686 | ||
1687 | static PyGetSetDef kxvik_pygetset[] = { | |
1688 | #define GETSETNAME(op, name) kxvik##op##_##name | |
1689 | GETSET(nround, "KECCAK.nround -> number of rounds") | |
1690 | #undef GETSETNAME | |
1691 | { 0 } | |
1692 | }; | |
1693 | ||
1694 | static PyMethodDef kxvik_pymethods[] = { | |
1695 | #define METHNAME(func) kxvikmeth_##func | |
1696 | METH (mix, "KECCAK.mix(DATA)") | |
1697 | METH (extract, "KECCAK.extract(NOCTETS)") | |
1698 | METH (step, "KECCAK.step()") | |
1699 | #undef METHNAME | |
1700 | { 0 } | |
1701 | }; | |
1702 | ||
1703 | static PyTypeObject kxvik_pytype_skel = { | |
1704 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
1705 | "Keccak1600", /* @tp_name@ */ | |
1706 | sizeof(kxvik_pyobj), /* @tp_basicsize@ */ | |
1707 | 0, /* @tp_itemsize@ */ | |
1708 | ||
1709 | 0, /* @tp_dealloc@ */ | |
1710 | 0, /* @tp_print@ */ | |
1711 | 0, /* @tp_getattr@ */ | |
1712 | 0, /* @tp_setattr@ */ | |
1713 | 0, /* @tp_compare@ */ | |
1714 | 0, /* @tp_repr@ */ | |
1715 | 0, /* @tp_as_number@ */ | |
1716 | 0, /* @tp_as_sequence@ */ | |
1717 | 0, /* @tp_as_mapping@ */ | |
1718 | 0, /* @tp_hash@ */ | |
1719 | 0, /* @tp_call@ */ | |
1720 | 0, /* @tp_str@ */ | |
1721 | 0, /* @tp_getattro@ */ | |
1722 | 0, /* @tp_setattro@ */ | |
1723 | 0, /* @tp_as_buffer@ */ | |
1724 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1725 | Py_TPFLAGS_BASETYPE, | |
1726 | ||
1727 | /* @tp_doc@ */ | |
1728 | "Keccak-p[1600, n] state.", | |
1729 | ||
1730 | 0, /* @tp_traverse@ */ | |
1731 | 0, /* @tp_clear@ */ | |
1732 | 0, /* @tp_richcompare@ */ | |
1733 | 0, /* @tp_weaklistoffset@ */ | |
1734 | 0, /* @tp_iter@ */ | |
1735 | 0, /* @tp_iternext@ */ | |
1736 | kxvik_pymethods, /* @tp_methods@ */ | |
1737 | 0, /* @tp_members@ */ | |
1738 | kxvik_pygetset, /* @tp_getset@ */ | |
1739 | 0, /* @tp_base@ */ | |
1740 | 0, /* @tp_dict@ */ | |
1741 | 0, /* @tp_descr_get@ */ | |
1742 | 0, /* @tp_descr_set@ */ | |
1743 | 0, /* @tp_dictoffset@ */ | |
1744 | 0, /* @tp_init@ */ | |
1745 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1746 | kxvik_pynew, /* @tp_new@ */ | |
1747 | 0, /* @tp_free@ */ | |
1748 | 0 /* @tp_is_gc@ */ | |
1749 | }; | |
1750 | ||
6bd22b53 MW |
1751 | static PyTypeObject *shake_pytype, *shake128_pytype, *shake256_pytype; |
1752 | ||
1753 | typedef struct shake_pyobj { | |
1754 | PyObject_HEAD | |
1755 | int st; | |
1756 | shake_ctx h; | |
1757 | } shake_pyobj; | |
1758 | ||
1759 | #define SHAKE_H(o) (&((shake_pyobj *)(o))->h) | |
1760 | #define SHAKE_ST(o) (((shake_pyobj *)(o))->st) | |
1761 | ||
1762 | static PyObject *shake_dopynew(void (*initfn)(shake_ctx *, | |
1763 | const void *, size_t, | |
1764 | const void *, size_t), | |
1765 | PyTypeObject *ty, | |
1766 | PyObject *arg, PyObject *kw) | |
1767 | { | |
1768 | shake_pyobj *rc = 0; | |
1769 | char *p = 0, *f = 0; | |
1770 | Py_ssize_t psz = 0, fsz = 0; | |
1771 | char *kwlist[] = { "perso", "func", 0 }; | |
1772 | ||
1773 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|s#s#:new", kwlist, | |
1774 | &p, &psz, &f, &fsz)) | |
1775 | goto end; | |
1776 | rc = (shake_pyobj *)ty->tp_alloc(ty, 0); | |
1777 | initfn(&rc->h, f, fsz, p, psz); | |
1778 | rc->st = 0; | |
1779 | end: | |
1780 | return ((PyObject *)rc); | |
1781 | } | |
1782 | ||
1783 | static PyObject *shake128_pynew(PyTypeObject *ty, | |
1784 | PyObject *arg, PyObject *kw) | |
1785 | { return (shake_dopynew(cshake128_init, ty, arg, kw)); } | |
1786 | ||
1787 | static PyObject *shake256_pynew(PyTypeObject *ty, | |
1788 | PyObject *arg, PyObject *kw) | |
1789 | { return (shake_dopynew(cshake256_init, ty, arg, kw)); } | |
1790 | ||
1791 | static int shake_check(PyObject *me, int st) | |
1792 | { | |
1793 | if (SHAKE_ST(me) != st) VALERR("wrong state"); | |
1794 | return (0); | |
1795 | end: | |
1796 | return (-1); | |
1797 | } | |
1798 | ||
1799 | static PyObject *shakemeth_hash(PyObject *me, PyObject *arg) | |
1800 | { | |
1801 | char *p; | |
1802 | Py_ssize_t sz; | |
1803 | if (!PyArg_ParseTuple(arg, "s#:hash", &p, &sz)) return (0); | |
1804 | if (shake_check(me, 0)) return (0); | |
1805 | shake_hash(SHAKE_H(me), p, sz); | |
1806 | RETURN_ME; | |
1807 | } | |
1808 | ||
1809 | #define SHAKEMETH_HASHU_(n, W, w) \ | |
1810 | static PyObject *shakemeth_hashu##w(PyObject *me, PyObject *arg) \ | |
1811 | { \ | |
1812 | uint##n x; \ | |
1813 | octet b[SZ_##W]; \ | |
1814 | if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) goto end; \ | |
1815 | if (shake_check(me, 0)) goto end; \ | |
1816 | STORE##W(b, x); shake_hash(SHAKE_H(me), b, sizeof(b)); \ | |
1817 | RETURN_ME; \ | |
1818 | end: \ | |
1819 | return (0); \ | |
1820 | } | |
1821 | DOUINTCONV(SHAKEMETH_HASHU_) | |
1822 | ||
1823 | #define SHAKEMETH_HASHBUF_(n, W, w) \ | |
1824 | static PyObject *shakemeth_hashbuf##w(PyObject *me, PyObject *arg) \ | |
1825 | { \ | |
1826 | char *p; \ | |
1827 | Py_ssize_t sz; \ | |
1828 | octet b[SZ_##W]; \ | |
1829 | if (!PyArg_ParseTuple(arg, "s#:hashbuf" #w, &p, &sz)) goto end; \ | |
1830 | if (sz > MASK##n) TYERR("string too long"); \ | |
1831 | if (shake_check(me, 0)) goto end; \ | |
1832 | STORE##W(b, sz); shake_hash(SHAKE_H(me), b, sizeof(b)); \ | |
1833 | shake_hash(SHAKE_H(me), p, sz); \ | |
1834 | RETURN_ME; \ | |
1835 | end: \ | |
1836 | return (0); \ | |
1837 | } | |
1838 | DOUINTCONV(SHAKEMETH_HASHBUF_) | |
1839 | ||
1840 | static PyObject *shakemeth_hashstrz(PyObject *me, PyObject *arg) | |
1841 | { | |
1842 | char *p; | |
1843 | if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0); | |
1844 | if (shake_check(me, 0)) return (0); | |
1845 | shake_hash(SHAKE_H(me), p, strlen(p) + 1); | |
1846 | RETURN_ME; | |
1847 | } | |
1848 | ||
1849 | static PyObject *shakemeth_xof(PyObject *me, PyObject *arg) | |
1850 | { | |
1851 | if (!PyArg_ParseTuple(arg, ":xof")) goto end; | |
1852 | if (shake_check(me, 0)) goto end; | |
1853 | shake_xof(SHAKE_H(me)); | |
1854 | SHAKE_ST(me) = 1; | |
1855 | RETURN_ME; | |
1856 | end: | |
1857 | return (0); | |
1858 | } | |
1859 | ||
1860 | static PyObject *shakemeth_done(PyObject *me, PyObject *arg) | |
1861 | { | |
1862 | PyObject *rc = 0; | |
1863 | size_t n; | |
1864 | if (!PyArg_ParseTuple(arg, "O&:done", convszt, &n)) goto end; | |
1865 | if (shake_check(me, 0)) goto end; | |
1866 | rc = bytestring_pywrap(0, n); | |
1867 | shake_done(SHAKE_H(me), PyString_AS_STRING(rc), n); | |
1868 | SHAKE_ST(me) = -1; | |
1869 | end: | |
1870 | return (rc); | |
1871 | } | |
1872 | ||
1873 | static PyObject *shakemeth_copy(PyObject *me, PyObject *arg) | |
1874 | { | |
1875 | shake_pyobj *rc = 0; | |
1876 | ||
1877 | if (!PyArg_ParseTuple(arg, ":copy")) goto end; | |
1878 | rc = PyObject_NEW(shake_pyobj, me->ob_type); | |
1879 | rc->h = *SHAKE_H(me); | |
1880 | rc->st = SHAKE_ST(me); | |
1881 | end: | |
9b5c9816 | 1882 | return ((PyObject *)rc); |
6bd22b53 MW |
1883 | } |
1884 | ||
1885 | static PyObject *shakemeth_get(PyObject *me, PyObject *arg) | |
1886 | { | |
1887 | PyObject *rc = 0; | |
1888 | size_t sz; | |
1889 | ||
1890 | if (!PyArg_ParseTuple(arg, "O&:get", convszt, &sz)) goto end; | |
1891 | if (shake_check(me, 1)) goto end; | |
1892 | rc = bytestring_pywrap(0, sz); | |
1893 | shake_get(SHAKE_H(me), PyString_AS_STRING(rc), sz); | |
1894 | end: | |
1895 | return (rc); | |
1896 | } | |
1897 | ||
1898 | static PyObject *shakemeth_mask(PyObject *me, PyObject *arg) | |
1899 | { | |
1900 | PyObject *rc = 0; | |
1901 | char *p; Py_ssize_t sz; | |
1902 | ||
1903 | if (!PyArg_ParseTuple(arg, "s#:mask", &p, &sz)) goto end; | |
1904 | if (shake_check(me, 1)) goto end; | |
1905 | rc = bytestring_pywrap(0, sz); | |
1906 | shake_mask(SHAKE_H(me), p, PyString_AS_STRING(rc), sz); | |
1907 | end: | |
1908 | return (rc); | |
1909 | } | |
1910 | ||
1911 | static PyObject *shakeget_rate(PyObject *me, void *hunoz) | |
1912 | { return (PyInt_FromLong(SHAKE_H(me)->h.r)); } | |
1913 | ||
1914 | static PyObject *shakeget_buffered(PyObject *me, void *hunoz) | |
1915 | { return (PyInt_FromLong(SHAKE_H(me)->h.n)); } | |
1916 | ||
1917 | static PyObject *shakeget_state(PyObject *me, void *hunoz) | |
1918 | { | |
1919 | int st = SHAKE_ST(me); | |
1920 | return (PyString_FromString(st == 0 ? "absorb" : | |
1921 | st == 1 ? "squeeze" : "dead")); | |
1922 | } | |
1923 | ||
1924 | static PyGetSetDef shake_pygetset[] = { | |
1925 | #define GETSETNAME(op, name) shake##op##_##name | |
1926 | GET (rate, "S.rate -> rate, in bytes") | |
1927 | GET (buffered, "S.buffered -> amount currently buffered") | |
1928 | GET (state, "S.state -> `absorb', `squeeze', `dead'") | |
1929 | #undef GETSETNAME | |
1930 | { 0 } | |
1931 | }; | |
1932 | ||
1933 | static PyMethodDef shake_pymethods[] = { | |
1934 | #define METHNAME(func) shakemeth_##func | |
1935 | METH (copy, "S.copy() -> SS") | |
1936 | METH (hash, "S.hash(M)") | |
1937 | #define METHU_(n, W, w) METH(hashu##w, "S.hashu" #w "(WORD)") | |
1938 | DOUINTCONV(METHU_) | |
1939 | #undef METHU_ | |
1940 | #define METHBUF_(n, W, w) METH(hashbuf##w, "S.hashbuf" #w "(BYTES)") | |
1941 | DOUINTCONV(METHBUF_) | |
1942 | #undef METHBUF_ | |
1943 | METH (hashstrz, "S.hashstrz(STRING)") | |
1944 | METH (xof, "S.xof()") | |
1945 | METH (done, "S.done(LEN) ->H") | |
1946 | METH (get, "S.get(LEN) -> H") | |
1947 | METH (mask, "S.mask(M) -> C") | |
1948 | #undef METHNAME | |
1949 | { 0 } | |
1950 | }; | |
1951 | ||
1952 | static PyTypeObject shake_pytype_skel = { | |
1953 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
1954 | "Shake", /* @tp_name@ */ | |
1955 | sizeof(shake_pyobj), /* @tp_basicsize@ */ | |
1956 | 0, /* @tp_itemsize@ */ | |
1957 | ||
1958 | 0, /* @tp_dealloc@ */ | |
1959 | 0, /* @tp_print@ */ | |
1960 | 0, /* @tp_getattr@ */ | |
1961 | 0, /* @tp_setattr@ */ | |
1962 | 0, /* @tp_compare@ */ | |
1963 | 0, /* @tp_repr@ */ | |
1964 | 0, /* @tp_as_number@ */ | |
1965 | 0, /* @tp_as_sequence@ */ | |
1966 | 0, /* @tp_as_mapping@ */ | |
1967 | 0, /* @tp_hash@ */ | |
1968 | 0, /* @tp_call@ */ | |
1969 | 0, /* @tp_str@ */ | |
1970 | 0, /* @tp_getattro@ */ | |
1971 | 0, /* @tp_setattro@ */ | |
1972 | 0, /* @tp_as_buffer@ */ | |
1973 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1974 | Py_TPFLAGS_BASETYPE, | |
1975 | ||
1976 | /* @tp_doc@ */ | |
1977 | "SHAKE/cSHAKE base class.", | |
1978 | ||
1979 | 0, /* @tp_traverse@ */ | |
1980 | 0, /* @tp_clear@ */ | |
1981 | 0, /* @tp_richcompare@ */ | |
1982 | 0, /* @tp_weaklistoffset@ */ | |
1983 | 0, /* @tp_iter@ */ | |
1984 | 0, /* @tp_iternext@ */ | |
1985 | shake_pymethods, /* @tp_methods@ */ | |
1986 | 0, /* @tp_members@ */ | |
1987 | shake_pygetset, /* @tp_getset@ */ | |
1988 | 0, /* @tp_base@ */ | |
1989 | 0, /* @tp_dict@ */ | |
1990 | 0, /* @tp_descr_get@ */ | |
1991 | 0, /* @tp_descr_set@ */ | |
1992 | 0, /* @tp_dictoffset@ */ | |
1993 | 0, /* @tp_init@ */ | |
1994 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1995 | abstract_pynew, /* @tp_new@ */ | |
1996 | 0, /* @tp_free@ */ | |
1997 | 0 /* @tp_is_gc@ */ | |
1998 | }; | |
1999 | ||
2000 | static PyTypeObject shake128_pytype_skel = { | |
2001 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
2002 | "Shake128", /* @tp_name@ */ | |
2003 | 0, /* @tp_basicsize@ */ | |
2004 | 0, /* @tp_itemsize@ */ | |
2005 | ||
2006 | 0, /* @tp_dealloc@ */ | |
2007 | 0, /* @tp_print@ */ | |
2008 | 0, /* @tp_getattr@ */ | |
2009 | 0, /* @tp_setattr@ */ | |
2010 | 0, /* @tp_compare@ */ | |
2011 | 0, /* @tp_repr@ */ | |
2012 | 0, /* @tp_as_number@ */ | |
2013 | 0, /* @tp_as_sequence@ */ | |
2014 | 0, /* @tp_as_mapping@ */ | |
2015 | 0, /* @tp_hash@ */ | |
2016 | 0, /* @tp_call@ */ | |
2017 | 0, /* @tp_str@ */ | |
2018 | 0, /* @tp_getattro@ */ | |
2019 | 0, /* @tp_setattro@ */ | |
2020 | 0, /* @tp_as_buffer@ */ | |
2021 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
2022 | Py_TPFLAGS_BASETYPE, | |
2023 | ||
2024 | /* @tp_doc@ */ | |
2025 | "SHAKE128/cSHAKE128 XOF.", | |
2026 | ||
2027 | 0, /* @tp_traverse@ */ | |
2028 | 0, /* @tp_clear@ */ | |
2029 | 0, /* @tp_richcompare@ */ | |
2030 | 0, /* @tp_weaklistoffset@ */ | |
2031 | 0, /* @tp_iter@ */ | |
2032 | 0, /* @tp_iternext@ */ | |
2033 | 0, /* @tp_methods@ */ | |
2034 | 0, /* @tp_members@ */ | |
2035 | 0, /* @tp_getset@ */ | |
2036 | 0, /* @tp_base@ */ | |
2037 | 0, /* @tp_dict@ */ | |
2038 | 0, /* @tp_descr_get@ */ | |
2039 | 0, /* @tp_descr_set@ */ | |
2040 | 0, /* @tp_dictoffset@ */ | |
2041 | 0, /* @tp_init@ */ | |
2042 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
2043 | shake128_pynew, /* @tp_new@ */ | |
2044 | 0, /* @tp_free@ */ | |
2045 | 0 /* @tp_is_gc@ */ | |
2046 | }; | |
2047 | ||
2048 | static PyTypeObject shake256_pytype_skel = { | |
2049 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
2050 | "Shake256", /* @tp_name@ */ | |
2051 | 0, /* @tp_basicsize@ */ | |
2052 | 0, /* @tp_itemsize@ */ | |
2053 | ||
2054 | 0, /* @tp_dealloc@ */ | |
2055 | 0, /* @tp_print@ */ | |
2056 | 0, /* @tp_getattr@ */ | |
2057 | 0, /* @tp_setattr@ */ | |
2058 | 0, /* @tp_compare@ */ | |
2059 | 0, /* @tp_repr@ */ | |
2060 | 0, /* @tp_as_number@ */ | |
2061 | 0, /* @tp_as_sequence@ */ | |
2062 | 0, /* @tp_as_mapping@ */ | |
2063 | 0, /* @tp_hash@ */ | |
2064 | 0, /* @tp_call@ */ | |
2065 | 0, /* @tp_str@ */ | |
2066 | 0, /* @tp_getattro@ */ | |
2067 | 0, /* @tp_setattro@ */ | |
2068 | 0, /* @tp_as_buffer@ */ | |
2069 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
2070 | Py_TPFLAGS_BASETYPE, | |
2071 | ||
2072 | /* @tp_doc@ */ | |
2073 | "SHAKE256/cSHAKE256 XOF.", | |
2074 | ||
2075 | 0, /* @tp_traverse@ */ | |
2076 | 0, /* @tp_clear@ */ | |
2077 | 0, /* @tp_richcompare@ */ | |
2078 | 0, /* @tp_weaklistoffset@ */ | |
2079 | 0, /* @tp_iter@ */ | |
2080 | 0, /* @tp_iternext@ */ | |
2081 | 0, /* @tp_methods@ */ | |
2082 | 0, /* @tp_members@ */ | |
2083 | 0, /* @tp_getset@ */ | |
2084 | 0, /* @tp_base@ */ | |
2085 | 0, /* @tp_dict@ */ | |
2086 | 0, /* @tp_descr_get@ */ | |
2087 | 0, /* @tp_descr_set@ */ | |
2088 | 0, /* @tp_dictoffset@ */ | |
2089 | 0, /* @tp_init@ */ | |
2090 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
2091 | shake256_pynew, /* @tp_new@ */ | |
2092 | 0, /* @tp_free@ */ | |
2093 | 0 /* @tp_is_gc@ */ | |
2094 | }; | |
2095 | ||
03ed9abb MW |
2096 | /*----- Pseudorandom permutations -----------------------------------------*/ |
2097 | ||
2098 | static PyTypeObject *gcprp_pytype, *gprp_pytype; | |
2099 | ||
2100 | typedef struct prpinfo { | |
2101 | const char *name; | |
2102 | const octet *keysz; | |
2103 | size_t ctxsz; | |
2104 | size_t blksz; | |
2105 | void (*init)(void *, const void *, size_t); | |
2106 | void (*eblk)(void *, const void *, void *); | |
2107 | void (*dblk)(void *, const void *, void *); | |
2108 | } prpinfo; | |
2109 | ||
2110 | #define PRP_DEF(PRE, pre) \ | |
2111 | static void pre##_prpinit(void *ctx, const void *k, size_t ksz) \ | |
2112 | { pre##_init(ctx, k, ksz); } \ | |
2113 | static void pre##_prpeblk(void *ctx, const void *in, void *out) \ | |
2114 | { \ | |
2115 | uint32 w[PRE##_BLKSZ/4]; BLKC_LOAD(PRE, w, in); \ | |
2116 | pre##_eblk(ctx, w, w); BLKC_STORE(PRE, out, w); \ | |
2117 | } \ | |
2118 | static void pre##_prpdblk(void *ctx, const void *in, void *out) \ | |
2119 | { \ | |
2120 | uint32 w[PRE##_BLKSZ/4]; BLKC_LOAD(PRE, w, in); \ | |
2121 | pre##_dblk(ctx, w, w); BLKC_STORE(PRE, out, w); \ | |
2122 | } \ | |
2123 | static const prpinfo pre##_prpinfo = { \ | |
2124 | #pre, pre##_keysz, sizeof(pre##_ctx), PRE##_BLKSZ, \ | |
2125 | pre##_prpinit, pre##_prpeblk, pre##_prpdblk \ | |
2126 | }; | |
2127 | PRPS(PRP_DEF) | |
2128 | ||
2129 | static const struct prpinfo *const gprptab[] = { | |
2130 | #define PRP_ENTRY(PRE, pre) &pre##_prpinfo, | |
2131 | PRPS(PRP_ENTRY) | |
2132 | 0 | |
b2687a0a | 2133 | }; |
03ed9abb MW |
2134 | |
2135 | typedef struct gcprp_pyobj { | |
2136 | PyHeapTypeObject ty; | |
2137 | const prpinfo *prp; | |
2138 | } gcprp_pyobj; | |
2139 | #define GCPRP_PRP(o) (((gcprp_pyobj *)(o))->prp) | |
2140 | ||
2141 | typedef struct gprp_pyobj { | |
2142 | PyObject_HEAD | |
2143 | const prpinfo *prp; | |
2144 | } gprp_pyobj; | |
2145 | #define GPRP_PRP(o) (((gprp_pyobj *)(o))->prp) | |
2146 | #define GPRP_CTX(o) (((gprp_pyobj *)(o)) + 1) | |
2147 | ||
2148 | typedef struct prp { | |
2149 | const prpinfo *prp; | |
2150 | void *ctx; | |
2151 | } prp; | |
2152 | ||
2153 | static PyObject *gprp_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
2154 | { | |
2155 | char *kwlist[] = { "key", 0 }; | |
2156 | char *k; | |
6b54260d | 2157 | Py_ssize_t sz; |
03ed9abb MW |
2158 | const prpinfo *prp = GCPRP_PRP(ty); |
2159 | PyObject *me; | |
2160 | ||
2161 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &sz)) | |
2162 | goto end; | |
2163 | if (keysz(sz, prp->keysz) != sz) VALERR("bad key length"); | |
2164 | me = (PyObject *)ty->tp_alloc(ty, 0); | |
2165 | GPRP_PRP(me) = prp; | |
2166 | prp->init(GPRP_CTX(me), k, sz); | |
2167 | Py_INCREF(me); | |
2168 | return (me); | |
2169 | end: | |
b2687a0a | 2170 | return (0); |
03ed9abb MW |
2171 | } |
2172 | ||
2173 | static void gprp_pydealloc(PyObject *me) | |
2174 | { Py_DECREF(me->ob_type); FREEOBJ(me); } | |
2175 | ||
2176 | static PyObject *gcprp_pywrap(const prpinfo *prp) | |
2177 | { | |
2178 | gcprp_pyobj *g = newtype(gcprp_pytype, 0, prp->name); | |
2179 | g->prp = prp; | |
24b3d57b MW |
2180 | g->ty.ht_type.tp_basicsize = sizeof(gprp_pyobj) + prp->ctxsz; |
2181 | g->ty.ht_type.tp_base = gprp_pytype; | |
03ed9abb | 2182 | Py_INCREF(gprp_pytype); |
24b3d57b MW |
2183 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
2184 | Py_TPFLAGS_BASETYPE | | |
2185 | Py_TPFLAGS_HEAPTYPE); | |
2186 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
2187 | g->ty.ht_type.tp_free = 0; | |
2188 | g->ty.ht_type.tp_new = gprp_pynew; | |
dc075750 | 2189 | typeready(&g->ty.ht_type); |
03ed9abb MW |
2190 | return ((PyObject *)g); |
2191 | } | |
2192 | ||
2193 | static PyObject *gcpget_name(PyObject *me, void *hunoz) | |
2194 | { return (PyString_FromString(GCPRP_PRP(me)->name)); } | |
2195 | static PyObject *gcpget_keysz(PyObject *me, void *hunoz) | |
2196 | { return (keysz_pywrap(GCPRP_PRP(me)->keysz)); } | |
2197 | static PyObject *gcpget_blksz(PyObject *me, void *hunoz) | |
2198 | { return (PyInt_FromLong(GCPRP_PRP(me)->blksz)); } | |
2199 | ||
2200 | static PyObject *gpmeth_encrypt(PyObject *me, PyObject *arg) | |
2201 | { | |
2202 | char *p; | |
6b54260d | 2203 | Py_ssize_t n; |
03ed9abb MW |
2204 | PyObject *rc = 0; |
2205 | ||
2206 | if (!PyArg_ParseTuple(arg, "s#:encrypt", &p, &n)) goto end; | |
2207 | if (n != GPRP_PRP(me)->blksz) VALERR("incorrect block length"); | |
2208 | rc = bytestring_pywrap(0, n); | |
2209 | GPRP_PRP(me)->eblk(GPRP_CTX(me), p, PyString_AS_STRING(rc)); | |
2210 | end: | |
2211 | return (rc); | |
2212 | } | |
2213 | ||
2214 | static PyObject *gpmeth_decrypt(PyObject *me, PyObject *arg) | |
2215 | { | |
2216 | char *p; | |
6b54260d | 2217 | Py_ssize_t n; |
03ed9abb MW |
2218 | PyObject *rc = 0; |
2219 | ||
2220 | if (!PyArg_ParseTuple(arg, "s#:decrypt", &p, &n)) goto end; | |
2221 | if (n != GPRP_PRP(me)->blksz) VALERR("incorrect block length"); | |
2222 | rc = bytestring_pywrap(0, n); | |
2223 | GPRP_PRP(me)->dblk(GPRP_CTX(me), p, PyString_AS_STRING(rc)); | |
2224 | end: | |
2225 | return (rc); | |
2226 | } | |
2227 | ||
2228 | static PyGetSetDef gcprp_pygetset[] = { | |
2229 | #define GETSETNAME(op, name) gcp##op##_##name | |
2230 | GET (keysz, "CP.keysz -> acceptable key sizes") | |
2231 | GET (blksz, "CP.blksz -> block size") | |
2232 | GET (name, "CP.name -> name of this kind of PRP") | |
2233 | #undef GETSETNAME | |
2234 | { 0 } | |
2235 | }; | |
2236 | ||
2237 | static PyMethodDef gprp_pymethods[] = { | |
2238 | #define METHNAME(name) gpmeth_##name | |
2239 | METH (encrypt, "P.encrypt(PT) -> CT") | |
2240 | METH (decrypt, "P.decrypt(CT) -> PT") | |
2241 | #undef METHNAME | |
2242 | { 0 } | |
2243 | }; | |
2244 | ||
2245 | static PyTypeObject gcprp_pytype_skel = { | |
2246 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
c461c9b3 | 2247 | "GCPRP", /* @tp_name@ */ |
03ed9abb MW |
2248 | sizeof(gcprp_pyobj), /* @tp_basicsize@ */ |
2249 | 0, /* @tp_itemsize@ */ | |
2250 | ||
2251 | 0, /* @tp_dealloc@ */ | |
2252 | 0, /* @tp_print@ */ | |
2253 | 0, /* @tp_getattr@ */ | |
2254 | 0, /* @tp_setattr@ */ | |
2255 | 0, /* @tp_compare@ */ | |
2256 | 0, /* @tp_repr@ */ | |
2257 | 0, /* @tp_as_number@ */ | |
2258 | 0, /* @tp_as_sequence@ */ | |
2259 | 0, /* @tp_as_mapping@ */ | |
2260 | 0, /* @tp_hash@ */ | |
2261 | 0, /* @tp_call@ */ | |
2262 | 0, /* @tp_str@ */ | |
2263 | 0, /* @tp_getattro@ */ | |
2264 | 0, /* @tp_setattro@ */ | |
2265 | 0, /* @tp_as_buffer@ */ | |
2266 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
2267 | Py_TPFLAGS_BASETYPE, | |
2268 | ||
2269 | /* @tp_doc@ */ | |
2270 | "Pseudorandom permutation metaclass.", | |
2271 | ||
2272 | 0, /* @tp_traverse@ */ | |
2273 | 0, /* @tp_clear@ */ | |
2274 | 0, /* @tp_richcompare@ */ | |
2275 | 0, /* @tp_weaklistoffset@ */ | |
2276 | 0, /* @tp_iter@ */ | |
2277 | 0, /* @tp_iternext@ */ | |
2278 | 0, /* @tp_methods@ */ | |
2279 | 0, /* @tp_members@ */ | |
2280 | gcprp_pygetset, /* @tp_getset@ */ | |
2281 | 0, /* @tp_base@ */ | |
2282 | 0, /* @tp_dict@ */ | |
2283 | 0, /* @tp_descr_get@ */ | |
2284 | 0, /* @tp_descr_set@ */ | |
2285 | 0, /* @tp_dictoffset@ */ | |
2286 | 0, /* @tp_init@ */ | |
2287 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
2288 | abstract_pynew, /* @tp_new@ */ | |
2289 | 0, /* @tp_free@ */ | |
2290 | 0 /* @tp_is_gc@ */ | |
2291 | }; | |
2292 | ||
2293 | static PyTypeObject gprp_pytype_skel = { | |
2294 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
c461c9b3 | 2295 | "GPRP", /* @tp_name@ */ |
03ed9abb MW |
2296 | sizeof(gprp_pyobj), /* @tp_basicsize@ */ |
2297 | 0, /* @tp_itemsize@ */ | |
2298 | ||
2299 | gprp_pydealloc, /* @tp_dealloc@ */ | |
2300 | 0, /* @tp_print@ */ | |
2301 | 0, /* @tp_getattr@ */ | |
2302 | 0, /* @tp_setattr@ */ | |
2303 | 0, /* @tp_compare@ */ | |
2304 | 0, /* @tp_repr@ */ | |
2305 | 0, /* @tp_as_number@ */ | |
2306 | 0, /* @tp_as_sequence@ */ | |
2307 | 0, /* @tp_as_mapping@ */ | |
2308 | 0, /* @tp_hash@ */ | |
2309 | 0, /* @tp_call@ */ | |
2310 | 0, /* @tp_str@ */ | |
2311 | 0, /* @tp_getattro@ */ | |
2312 | 0, /* @tp_setattro@ */ | |
2313 | 0, /* @tp_as_buffer@ */ | |
2314 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
2315 | Py_TPFLAGS_BASETYPE, | |
2316 | ||
2317 | /* @tp_doc@ */ | |
2318 | "Pseudorandom permutation, abstract base class.", | |
2319 | ||
2320 | 0, /* @tp_traverse@ */ | |
2321 | 0, /* @tp_clear@ */ | |
2322 | 0, /* @tp_richcompare@ */ | |
2323 | 0, /* @tp_weaklistoffset@ */ | |
2324 | 0, /* @tp_iter@ */ | |
2325 | 0, /* @tp_iternext@ */ | |
2326 | gprp_pymethods, /* @tp_methods@ */ | |
2327 | 0, /* @tp_members@ */ | |
2328 | 0, /* @tp_getset@ */ | |
2329 | 0, /* @tp_base@ */ | |
2330 | 0, /* @tp_dict@ */ | |
2331 | 0, /* @tp_descr_get@ */ | |
2332 | 0, /* @tp_descr_set@ */ | |
2333 | 0, /* @tp_dictoffset@ */ | |
2334 | 0, /* @tp_init@ */ | |
2335 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
2336 | abstract_pynew, /* @tp_new@ */ | |
2337 | 0, /* @tp_free@ */ | |
2338 | 0 /* @tp_is_gc@ */ | |
2339 | }; | |
2340 | ||
d7ab1bab | 2341 | /*----- Main code ---------------------------------------------------------*/ |
2342 | ||
89157adc MW |
2343 | static PyMethodDef methods[] = { |
2344 | #define METHNAME(func) meth_##func | |
2345 | METH (_KeySZ_fromdl, "\ | |
2346 | fromdl(N) -> M: convert integer discrete log field size to work factor") | |
2347 | METH (_KeySZ_fromschnorr, "\ | |
2348 | fromschnorr(N) -> M: convert Schnorr group order to work factor") | |
2349 | METH (_KeySZ_fromif, "\ | |
2350 | fromif(N) -> M: convert integer factorization problem size to work factor") | |
2351 | METH (_KeySZ_fromec, "\ | |
2352 | fromec(N) -> M: convert elliptic curve group order to work factor") | |
2353 | METH (_KeySZ_todl, "\ | |
2354 | todl(N) -> M: convert work factor to integer discrete log field size") | |
2355 | METH (_KeySZ_toschnorr, "\ | |
2356 | toschnorr(N) -> M: convert work factor to Schnorr group order") | |
2357 | METH (_KeySZ_toif, "\ | |
2358 | toif(N) -> M: convert work factor to integer factorization problem size") | |
2359 | METH (_KeySZ_toec, "\ | |
2360 | toec(N) -> M: convert work factor to elliptic curve group order") | |
a75e68c9 MW |
2361 | METH (_KeySZ_toec, "\ |
2362 | toec(N) -> M: convert work factor to elliptic curve group order") | |
2363 | #define METH_HDANCE(hdance, HDance) METH(hdance##_prf, "\ | |
2364 | " #hdance "_prf(K, N) -> H: calculate " HDance " hash of N with K") | |
2365 | METH_HDANCE(hsalsa20, "HSalsa20") | |
2366 | METH_HDANCE(hsalsa2012, "HSalsa20/12") | |
2367 | METH_HDANCE(hsalsa208, "HSalsa20/8") | |
2368 | METH_HDANCE(hchacha20, "HChaCha20") | |
2369 | METH_HDANCE(hchacha12, "HChaCha12") | |
2370 | METH_HDANCE(hchacha8, "HChaCha8") | |
2371 | #undef METH_DANCE | |
89157adc MW |
2372 | #undef METHNAME |
2373 | { 0 } | |
2374 | }; | |
2375 | ||
d7ab1bab | 2376 | void algorithms_pyinit(void) |
2377 | { | |
2378 | INITTYPE(keysz, root); | |
2379 | INITTYPE(keyszany, keysz); | |
2380 | INITTYPE(keyszrange, keysz); | |
2381 | INITTYPE(keyszset, keysz); | |
2382 | INITTYPE(gccipher, type); | |
2383 | INITTYPE(gcipher, root); | |
2384 | INITTYPE(gchash, type); | |
2385 | INITTYPE(ghash, root); | |
2386 | INITTYPE(gcmac, type); | |
2387 | INITTYPE(gmac, type); | |
2388 | INITTYPE(gmhash, ghash); | |
204d480b MW |
2389 | INITTYPE(poly1305cls, type); |
2390 | INITTYPE_META(poly1305key, type, poly1305cls); | |
2391 | INITTYPE(poly1305hash, root); | |
b35fdbe6 | 2392 | INITTYPE(kxvik, root); |
6bd22b53 MW |
2393 | INITTYPE(shake, root); |
2394 | INITTYPE(shake128, shake); | |
2395 | INITTYPE(shake256, shake); | |
03ed9abb MW |
2396 | INITTYPE(gcprp, type); |
2397 | INITTYPE(gprp, root); | |
89157adc | 2398 | addmethods(methods); |
d7ab1bab | 2399 | } |
2400 | ||
d7ab1bab | 2401 | GEN(gcciphers, cipher) |
2402 | GEN(gchashes, hash) | |
2403 | GEN(gcmacs, mac) | |
03ed9abb MW |
2404 | #define gcprp prpinfo |
2405 | GEN(gcprps, prp) | |
d7ab1bab | 2406 | |
2407 | void algorithms_pyinsert(PyObject *mod) | |
2408 | { | |
2409 | PyObject *d; | |
2410 | INSERT("KeySZ", keysz_pytype); | |
2411 | INSERT("KeySZAny", keyszany_pytype); | |
2412 | INSERT("KeySZRange", keyszrange_pytype); | |
2413 | INSERT("KeySZSet", keyszset_pytype); | |
2414 | INSERT("GCCipher", gccipher_pytype); | |
2415 | INSERT("GCipher", gcipher_pytype); | |
2416 | INSERT("gcciphers", gcciphers()); | |
2417 | INSERT("GCHash", gchash_pytype); | |
2418 | INSERT("GHash", ghash_pytype); | |
2419 | INSERT("gchashes", d = gchashes()); | |
2420 | sha_pyobj = PyDict_GetItemString(d, "sha"); Py_INCREF(sha_pyobj); | |
2421 | has160_pyobj = PyDict_GetItemString(d, "has160"); Py_INCREF(has160_pyobj); | |
2422 | INSERT("GCMAC", gcmac_pytype); | |
2423 | INSERT("GMAC", gmac_pytype); | |
2424 | INSERT("GMACHash", gmhash_pytype); | |
2425 | INSERT("gcmacs", gcmacs()); | |
204d480b MW |
2426 | INSERT("Poly1305Class", poly1305cls_pytype); |
2427 | INSERT("poly1305", poly1305key_pytype); | |
2428 | INSERT("Poly1305Hash", poly1305hash_pytype); | |
b35fdbe6 | 2429 | INSERT("Keccak1600", kxvik_pytype); |
6bd22b53 MW |
2430 | INSERT("Shake", shake_pytype); |
2431 | INSERT("Shake128", shake128_pytype); | |
2432 | INSERT("Shake256", shake256_pytype); | |
03ed9abb MW |
2433 | INSERT("GCPRP", gcprp_pytype); |
2434 | INSERT("GPRP", gprp_pytype); | |
2435 | INSERT("gcprps", gcprps()); | |
d7ab1bab | 2436 | } |
2437 | ||
2438 | /*----- That's all, folks -------------------------------------------------*/ |