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*.c: Use Python `METH_NOARGS' methods where applicable.
[catacomb-python] / algorithms.c
CommitLineData
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 30PUBLIC_SYMBOLS;
d7ab1bab 31#include "algorithms.h"
6640e060 32PRIVATE_SYMBOLS;
d7ab1bab 33
34/*----- Key sizes ---------------------------------------------------------*/
35
c6e89d48
MW		 36static PyTypeObject *keysz_pytype;
37static PyTypeObject *keyszany_pytype, *keyszrange_pytype, *keyszset_pytype;
38
39typedef struct keysz_pyobj {
40 PyObject_HEAD
41 int dfl;
42} keysz_pyobj;
43
44typedef struct keyszrange_pyobj {
45 PyObject_HEAD
46 int dfl;
47 int min, max, mod;
48} keyszrange_pyobj;
49
50typedef 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 66PyObject *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);
d7ab1bab 89 int i, n;
cfe23cf8
MW		 90 o->dfl = ARG(0);
91 for (i = 0; ARG(i); i++) ;
d7ab1bab 92 n = i; o->set = PyTuple_New(n);
93 for (i = 0; i < n; i++)
cfe23cf8 94 PyTuple_SET_ITEM(o->set, i, PyInt_FromLong(ARG(i)));
d7ab1bab 95 return ((PyObject *)o);
96 } break;
97 default:
98 abort();
99 }
cfe23cf8 100#undef ARG
d7ab1bab 101}
102
103static PyObject *keyszany_pynew(PyTypeObject *ty,
104 PyObject *arg, PyObject *kw)
105{
827f89d7 106 static const char *const kwlist[] = { "default", 0 };
d7ab1bab 107 int dfl;
108 keysz_pyobj *o;
109
827f89d7 110 if (!PyArg_ParseTupleAndKeywords(arg, kw, "i:new", KWLIST, &dfl))
d7ab1bab 111 goto end;
112 if (dfl < 0) VALERR("key size cannot be negative");
113 o = (keysz_pyobj *)ty->tp_alloc(ty, 0);
114 o->dfl = dfl;
115 return ((PyObject *)o);
116end:
117 return (0);
118}
119
120static PyObject *keyszrange_pynew(PyTypeObject *ty,
121 PyObject *arg, PyObject *kw)
122{
827f89d7 123 static const char *const kwlist[] = { "default", "min", "max", "mod", 0 };
d7ab1bab 124 int dfl, min = 0, max = 0, mod = 1;
125 keyszrange_pyobj *o;
126
827f89d7 127 if (!PyArg_ParseTupleAndKeywords(arg, kw, "i|iii:new", KWLIST,
d7ab1bab 128 &dfl, &min, &max, &mod))
129 goto end;
838ab173
MW		 130 if (dfl < 0 || min < 0) VALERR("key size cannot be negative");
131 if (min > dfl || (max && dfl > max)) VALERR("bad key size bounds");
132 if (mod <= 0 || dfl%mod || min%mod || max%mod)
d7ab1bab 133 VALERR("bad key size modulus");
134 o = (keyszrange_pyobj *)ty->tp_alloc(ty, 0);
135 o->dfl = dfl;
136 o->min = min;
137 o->max = max;
138 o->mod = mod;
139 return ((PyObject *)o);
140end:
141 return (0);
142}
143
144static PyObject *keyszset_pynew(PyTypeObject *ty,
145 PyObject *arg, PyObject *kw)
146{
827f89d7 147 static const char *const kwlist[] = { "default", "set", 0 };
d7ab1bab 148 int dfl, i, n, xx;
149 PyObject *set = 0;
150 PyObject *x = 0, *l = 0;
151 keyszset_pyobj *o = 0;
152
827f89d7 153 if (!PyArg_ParseTupleAndKeywords(arg, kw, "i|O:new", KWLIST, &dfl, &set))
d7ab1bab 154 goto end;
155 if (!set) set = PyTuple_New(0);
156 else Py_INCREF(set);
157 if (!PySequence_Check(set)) TYERR("want a sequence");
4281a7ee
MW		 158 n = PySequence_Size(set); if (n < 0) goto end;
159 l = PyList_New(0); if (!l) goto end;
d7ab1bab 160 if (dfl < 0) VALERR("key size cannot be negative");
161 x = PyInt_FromLong(dfl);
162 PyList_Append(l, x);
163 Py_DECREF(x);
164 x = 0;
165 for (i = 0; i < n; i++) {
166 if ((x = PySequence_GetItem(set, i)) == 0) goto end;
167 xx = PyInt_AsLong(x);
168 if (PyErr_Occurred()) goto end;
169 if (xx == dfl) continue;
170 if (xx < 0) VALERR("key size cannot be negative");
171 PyList_Append(l, x);
172 Py_DECREF(x);
b2687a0a 173 x = 0;
d7ab1bab 174 }
175 Py_DECREF(set);
176 if ((set = PySequence_Tuple(l)) == 0) goto end;
177 o = (keyszset_pyobj *)ty->tp_alloc(ty, 0);
178 o->dfl = dfl;
179 o->set = set;
180 Py_INCREF(set);
181end:
182 Py_XDECREF(set);
183 Py_XDECREF(l);
184 Py_XDECREF(x);
185 return ((PyObject *)o);
186}
187
188static PyObject *kaget_min(PyObject *me, void *hunoz)
189 { return (PyInt_FromLong(0)); }
190#define kaget_max kaget_min
191
192static PyObject *ksget_min(PyObject *me, void *hunoz)
193{
194 PyObject *set = ((keyszset_pyobj *)me)->set;
195 int i, n, y, x = -1;
c51a597d 196 n = PyTuple_GET_SIZE(set);
d7ab1bab 197 for (i = 0; i < n; i++) {
c51a597d 198 y = PyInt_AS_LONG(PyTuple_GET_ITEM(set, i));
d7ab1bab 199 if (x == -1 || y < x) x = y;
200 }
201 return (PyInt_FromLong(x));
202}
203
204static PyObject *ksget_max(PyObject *me, void *hunoz)
205{
206 PyObject *set = ((keyszset_pyobj *)me)->set;
207 int i, n, y, x = -1;
c51a597d 208 n = PyTuple_GET_SIZE(set);
d7ab1bab 209 for (i = 0; i < n; i++) {
c51a597d 210 y = PyInt_AS_LONG(PyTuple_GET_ITEM(set, i));
d7ab1bab 211 if (y > x) x = y;
212 }
213 return (PyInt_FromLong(x));
214}
215
c90f712e 216static const PyMemberDef keysz_pymembers[] = {
d7ab1bab 217#define MEMBERSTRUCT keysz_pyobj
218#define default dfl /* ugh! */
d96c882e 219 MEMBER(default, T_INT, READONLY, "KSZ.default -> default key size")
d7ab1bab 220#undef default
221#undef MEMBERSTRUCT
222 { 0 }
223};
224
f281293c 225#define KSZCONVOP(op) \
a157093f 226 static PyObject *kszmeth_##op(PyObject *me, PyObject *arg) \
f281293c
MW		 227 { \
228 double x, y; \
a157093f 229 if (!PyArg_ParseTuple(arg, "d:" #op, &x)) return (0); \
f281293c
MW		 230 y = keysz_##op(x); \
231 return (PyFloat_FromDouble(y)); \
232 }
233KSZCONVOP(fromdl)
234KSZCONVOP(fromschnorr)
235KSZCONVOP(fromif)
236KSZCONVOP(fromec)
237KSZCONVOP(todl)
238KSZCONVOP(toschnorr)
239KSZCONVOP(toif)
240KSZCONVOP(toec)
241#undef KSZCONVOP
242
a157093f
MW		 243static const PyMethodDef keysz_pymethods[] = {
244#define METHNAME(name) kszmeth_##name
245 SMTH (fromdl, "fromdl(N) -> M: "
246 "convert integer discrete log field size to work factor")
247 SMTH (fromschnorr, "fromschnorr(N) -> M: "
248 "convert Schnorr group order to work factor")
249 SMTH (fromif, "fromif(N) -> M: "
250 "convert integer factorization problem size to work factor")
251 SMTH (fromec, "fromec(N) -> M: "
252 "convert elliptic curve group order to work factor")
253 SMTH (todl, "todl(N) -> M: "
254 "convert work factor to integer discrete log field size")
255 SMTH (toschnorr, "toschnorr(N) -> M: "
256 "convert work factor to Schnorr group order")
257 SMTH (toif, "toif(N) -> M: "
258 "convert work factor to integer factorization problem size")
259 SMTH (toec, "toec(N) -> M: "
260 "convert work factor to elliptic curve group order")
261 SMTH (toec, "toec(N) -> M: "
262 "convert work factor to elliptic curve group order")
263#undef METHNAME
264 { 0 }
265};
266
c90f712e 267static const PyGetSetDef keyszany_pygetset[] = {
d7ab1bab 268#define GETSETNAME(op, name) ka##op##_##name
d96c882e
MW		 269 GET (min, "KSZ.min -> smallest allowed key size")
270 GET (max, "KSZ.max -> largest allowed key size")
d7ab1bab 271#undef GETSETNAME
272 { 0 }
273};
274
c90f712e 275static const PyMemberDef keyszrange_pymembers[] = {
d7ab1bab 276#define MEMBERSTRUCT keyszrange_pyobj
d96c882e
MW		 277 MEMBER(min, T_INT, READONLY, "KSZ.min -> smallest allowed key size")
278 MEMBER(max, T_INT, READONLY, "KSZ.max -> largest allowed key size")
279 MEMBER(mod, T_INT, READONLY,
280 "KSZ.mod -> key size must be a multiple of this")
d7ab1bab 281#undef MEMBERSTRUCT
282 { 0 }
283};
284
c90f712e 285static const PyGetSetDef keyszset_pygetset[] = {
d7ab1bab 286#define GETSETNAME(op, name) ks##op##_##name
d96c882e
MW		 287 GET (min, "KSZ.min -> smallest allowed key size")
288 GET (max, "KSZ.max -> largest allowed key size")
d7ab1bab 289#undef GETSETNAME
290 { 0 }
291};
292
c90f712e 293static const PyMemberDef keyszset_pymembers[] = {
d7ab1bab 294#define MEMBERSTRUCT keyszset_pyobj
d96c882e 295 MEMBER(set, T_OBJECT, READONLY, "KSZ.set -> allowed key sizes")
d7ab1bab 296#undef MEMBERSTRUCT
297 { 0 }
298};
299
300static PyTypeObject keysz_pytype_skel = {
6d4db0bf 301 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 302 "KeySZ", /* @tp_name@ */
d7ab1bab 303 sizeof(keysz_pyobj), /* @tp_basicsize@ */
304 0, /* @tp_itemsize@ */
305
3aa33042 306 0, /* @tp_dealloc@ */
d7ab1bab 307 0, /* @tp_print@ */
308 0, /* @tp_getattr@ */
309 0, /* @tp_setattr@ */
310 0, /* @tp_compare@ */
311 0, /* @tp_repr@ */
312 0, /* @tp_as_number@ */
313 0, /* @tp_as_sequence@ */
314 0, /* @tp_as_mapping@ */
315 0, /* @tp_hash@ */
316 0, /* @tp_call@ */
317 0, /* @tp_str@ */
318 0, /* @tp_getattro@ */
319 0, /* @tp_setattro@ */
320 0, /* @tp_as_buffer@ */
321 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
322 Py_TPFLAGS_BASETYPE,
323
324 /* @tp_doc@ */
d96c882e 325 "Key size constraints. Abstract.",
d7ab1bab 326
327 0, /* @tp_traverse@ */
328 0, /* @tp_clear@ */
329 0, /* @tp_richcompare@ */
330 0, /* @tp_weaklistoffset@ */
331 0, /* @tp_iter@ */
963a6148 332 0, /* @tp_iternext@ */
a157093f 333 PYMETHODS(keysz), /* @tp_methods@ */
c90f712e 334 PYMEMBERS(keysz), /* @tp_members@ */
d7ab1bab 335 0, /* @tp_getset@ */
336 0, /* @tp_base@ */
337 0, /* @tp_dict@ */
338 0, /* @tp_descr_get@ */
339 0, /* @tp_descr_set@ */
340 0, /* @tp_dictoffset@ */
341 0, /* @tp_init@ */
342 PyType_GenericAlloc, /* @tp_alloc@ */
343 abstract_pynew, /* @tp_new@ */
3aa33042 344 0, /* @tp_free@ */
d7ab1bab 345 0 /* @tp_is_gc@ */
346};
347
348static PyTypeObject keyszany_pytype_skel = {
6d4db0bf 349 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 350 "KeySZAny", /* @tp_name@ */
d7ab1bab 351 sizeof(keysz_pyobj), /* @tp_basicsize@ */
352 0, /* @tp_itemsize@ */
353
3aa33042 354 0, /* @tp_dealloc@ */
d7ab1bab 355 0, /* @tp_print@ */
356 0, /* @tp_getattr@ */
357 0, /* @tp_setattr@ */
358 0, /* @tp_compare@ */
359 0, /* @tp_repr@ */
360 0, /* @tp_as_number@ */
361 0, /* @tp_as_sequence@ */
362 0, /* @tp_as_mapping@ */
363 0, /* @tp_hash@ */
364 0, /* @tp_call@ */
365 0, /* @tp_str@ */
366 0, /* @tp_getattro@ */
367 0, /* @tp_setattro@ */
368 0, /* @tp_as_buffer@ */
369 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
370 Py_TPFLAGS_BASETYPE,
371
372 /* @tp_doc@ */
d96c882e
MW		 373 "KeySZAny(DEFAULT)\n"
374 " Key size constraints. This object imposes no constraints on size.",
d7ab1bab 375
376 0, /* @tp_traverse@ */
377 0, /* @tp_clear@ */
378 0, /* @tp_richcompare@ */
379 0, /* @tp_weaklistoffset@ */
380 0, /* @tp_iter@ */
963a6148 381 0, /* @tp_iternext@ */
d7ab1bab 382 0, /* @tp_methods@ */
383 0, /* @tp_members@ */
c90f712e 384 PYGETSET(keyszany), /* @tp_getset@ */
d7ab1bab 385 0, /* @tp_base@ */
386 0, /* @tp_dict@ */
387 0, /* @tp_descr_get@ */
388 0, /* @tp_descr_set@ */
389 0, /* @tp_dictoffset@ */
390 0, /* @tp_init@ */
391 PyType_GenericAlloc, /* @tp_alloc@ */
392 keyszany_pynew, /* @tp_new@ */
3aa33042 393 0, /* @tp_free@ */
d7ab1bab 394 0 /* @tp_is_gc@ */
395};
396
397static PyTypeObject keyszrange_pytype_skel = {
6d4db0bf 398 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 399 "KeySZRange", /* @tp_name@ */
d7ab1bab 400 sizeof(keyszrange_pyobj), /* @tp_basicsize@ */
401 0, /* @tp_itemsize@ */
402
3aa33042 403 0, /* @tp_dealloc@ */
d7ab1bab 404 0, /* @tp_print@ */
405 0, /* @tp_getattr@ */
406 0, /* @tp_setattr@ */
407 0, /* @tp_compare@ */
408 0, /* @tp_repr@ */
409 0, /* @tp_as_number@ */
410 0, /* @tp_as_sequence@ */
411 0, /* @tp_as_mapping@ */
412 0, /* @tp_hash@ */
413 0, /* @tp_call@ */
414 0, /* @tp_str@ */
415 0, /* @tp_getattro@ */
416 0, /* @tp_setattro@ */
417 0, /* @tp_as_buffer@ */
418 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
419 Py_TPFLAGS_BASETYPE,
420
421 /* @tp_doc@ */
d96c882e
MW		 422 "KeySZRange(DEFAULT, [min = 0], [max = 0], [mod = 1])\n"
423 " Key size constraints: size must be between MIN and MAX inclusive, and\n"
424 " be a multiple of MOD.",
d7ab1bab 425
426 0, /* @tp_traverse@ */
427 0, /* @tp_clear@ */
428 0, /* @tp_richcompare@ */
429 0, /* @tp_weaklistoffset@ */
430 0, /* @tp_iter@ */
963a6148 431 0, /* @tp_iternext@ */
d7ab1bab 432 0, /* @tp_methods@ */
c90f712e 433 PYMEMBERS(keyszrange), /* @tp_members@ */
d7ab1bab 434 0, /* @tp_getset@ */
435 0, /* @tp_base@ */
436 0, /* @tp_dict@ */
437 0, /* @tp_descr_get@ */
438 0, /* @tp_descr_set@ */
439 0, /* @tp_dictoffset@ */
440 0, /* @tp_init@ */
441 PyType_GenericAlloc, /* @tp_alloc@ */
442 keyszrange_pynew, /* @tp_new@ */
3aa33042 443 0, /* @tp_free@ */
d7ab1bab 444 0 /* @tp_is_gc@ */
445};
446
447static PyTypeObject keyszset_pytype_skel = {
6d4db0bf 448 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 449 "KeySZSet", /* @tp_name@ */
d7ab1bab 450 sizeof(keyszset_pyobj), /* @tp_basicsize@ */
451 0, /* @tp_itemsize@ */
452
3aa33042 453 0, /* @tp_dealloc@ */
d7ab1bab 454 0, /* @tp_print@ */
455 0, /* @tp_getattr@ */
456 0, /* @tp_setattr@ */
457 0, /* @tp_compare@ */
458 0, /* @tp_repr@ */
459 0, /* @tp_as_number@ */
460 0, /* @tp_as_sequence@ */
461 0, /* @tp_as_mapping@ */
462 0, /* @tp_hash@ */
463 0, /* @tp_call@ */
464 0, /* @tp_str@ */
465 0, /* @tp_getattro@ */
466 0, /* @tp_setattro@ */
467 0, /* @tp_as_buffer@ */
468 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
469 Py_TPFLAGS_BASETYPE,
470
471 /* @tp_doc@ */
d96c882e
MW		 472 "KeySZSet(DEFAULT, SEQ)\n"
473 " Key size constraints: size must be DEFAULT or an element of SEQ.",
d7ab1bab 474
475 0, /* @tp_traverse@ */
476 0, /* @tp_clear@ */
477 0, /* @tp_richcompare@ */
478 0, /* @tp_weaklistoffset@ */
479 0, /* @tp_iter@ */
963a6148 480 0, /* @tp_iternext@ */
d7ab1bab 481 0, /* @tp_methods@ */
c90f712e
MW		 482 PYMEMBERS(keyszset), /* @tp_members@ */
483 PYGETSET(keyszset), /* @tp_getset@ */
d7ab1bab 484 0, /* @tp_base@ */
485 0, /* @tp_dict@ */
486 0, /* @tp_descr_get@ */
487 0, /* @tp_descr_set@ */
488 0, /* @tp_dictoffset@ */
489 0, /* @tp_init@ */
490 PyType_GenericAlloc, /* @tp_alloc@ */
491 keyszset_pynew, /* @tp_new@ */
3aa33042 492 0, /* @tp_free@ */
d7ab1bab 493 0 /* @tp_is_gc@ */
494};
495
496/*----- Symmetric encryption ----------------------------------------------*/
497
c6e89d48
MW		 498static PyTypeObject *gccipher_pytype, *gcipher_pytype;
499
500typedef struct gccipher_pyobj {
501 PyHeapTypeObject ty;
502 gccipher *cc;
503} gccipher_pyobj;
504
505#define GCCIPHER_PYCHECK(o) PyObject_TypeCheck((o), gccipher_pytype)
506#define GCCIPHER_CC(o) (((gccipher_pyobj *)(o))->cc)
507
508typedef struct gcipher_pyobj {
509 PyObject_HEAD
510 gcipher *c;
511} gcipher_pyobj;
512
513#define GCIPHER_PYCHECK(o) PyObject_TypeCheck((o), gcipher_pytype)
514#define GCIPHER_C(o) (((gcipher_pyobj *)(o))->c)
d7ab1bab 515
516CONVFUNC(gccipher, gccipher *, GCCIPHER_CC)
d7ab1bab 517
c6e89d48 518static PyObject *gcipher_pywrap(PyObject *cobj, gcipher *c)
d7ab1bab 519{
520 gcipher_pyobj *g;
521 if (!cobj) cobj = gccipher_pywrap((/*unconst*/ gccipher *)GC_CLASS(c));
522 else Py_INCREF(cobj);
523 g = PyObject_NEW(gcipher_pyobj, (PyTypeObject *)cobj);
524 g->c = c;
b2687a0a 525 return ((PyObject *)g);
d7ab1bab 526}
527
528static PyObject *gcipher_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
529{
827f89d7 530 static const char *const kwlist[] = { "k", 0 };
d7ab1bab 531 char *k;
6b54260d 532 Py_ssize_t sz;
d7ab1bab 533
827f89d7 534 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", KWLIST, &k, &sz))
d7ab1bab 535 goto end;
536 if (keysz(sz, GCCIPHER_CC(ty)->keysz) != sz) VALERR("bad key length");
537 return (gcipher_pywrap((PyObject *)ty,
c41d0371 538 GC_INIT(GCCIPHER_CC(ty), k, sz)));
d7ab1bab 539end:
b2687a0a 540 return (0);
d7ab1bab 541}
542
543PyObject *gccipher_pywrap(gccipher *cc)
544{
df9f8366 545 gccipher_pyobj *g = newtype(gccipher_pytype, 0, cc->name);
d7ab1bab 546 g->cc = cc;
24b3d57b
MW		 547 g->ty.ht_type.tp_basicsize = sizeof(gcipher_pyobj);
548 g->ty.ht_type.tp_base = gcipher_pytype;
d7ab1bab 549 Py_INCREF(gcipher_pytype);
24b3d57b
MW		 550 g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT |
551 Py_TPFLAGS_BASETYPE |
552 Py_TPFLAGS_HEAPTYPE);
553 g->ty.ht_type.tp_alloc = PyType_GenericAlloc;
554 g->ty.ht_type.tp_free = 0;
555 g->ty.ht_type.tp_new = gcipher_pynew;
dc075750 556 typeready(&g->ty.ht_type);
d7ab1bab 557 return ((PyObject *)g);
558}
559
560static void gcipher_pydealloc(PyObject *me)
561{
c41d0371 562 GC_DESTROY(GCIPHER_C(me));
d7ab1bab 563 Py_DECREF(me->ob_type);
3aa33042 564 FREEOBJ(me);
d7ab1bab 565}
566
567static PyObject *gccget_name(PyObject *me, void *hunoz)
568 { return (PyString_FromString(GCCIPHER_CC(me)->name)); }
569
570static PyObject *gccget_keysz(PyObject *me, void *hunoz)
571 { return (keysz_pywrap(GCCIPHER_CC(me)->keysz)); }
572
573static PyObject *gccget_blksz(PyObject *me, void *hunoz)
574 { return (PyInt_FromLong(GCCIPHER_CC(me)->blksz)); }
575
576static PyObject *gcmeth_encrypt(PyObject *me, PyObject *arg)
577{
578 char *p;
6b54260d 579 Py_ssize_t sz;
d7ab1bab 580 PyObject *rc = 0;
581
582 if (!PyArg_ParseTuple(arg, "s#:encrypt", &p, &sz)) return (0);
583 rc = bytestring_pywrap(0, sz);
584 GC_ENCRYPT(GCIPHER_C(me), p, PyString_AS_STRING(rc), sz);
585 return (rc);
586}
587
588static PyObject *gcmeth_enczero(PyObject *me, PyObject *arg)
589{
590 char *p;
591 int sz;
592 PyObject *rc = 0;
593
594 if (!PyArg_ParseTuple(arg, "i:enczero", &sz)) return (0);
595 rc = bytestring_pywrap(0, sz);
596 p = PyString_AS_STRING(rc);
597 memset(p, 0, sz);
598 GC_ENCRYPT(GCIPHER_C(me), p, p, sz);
599 return (rc);
600}
601
602static PyObject *gcmeth_decrypt(PyObject *me, PyObject *arg)
603{
604 char *p;
6b54260d 605 Py_ssize_t sz;
d7ab1bab 606 PyObject *rc = 0;
607
608 if (!PyArg_ParseTuple(arg, "s#:decrypt", &p, &sz)) return (0);
609 rc = bytestring_pywrap(0, sz);
610 GC_DECRYPT(GCIPHER_C(me), p, PyString_AS_STRING(rc), sz);
611 return (rc);
612}
613
614static PyObject *gcmeth_deczero(PyObject *me, PyObject *arg)
615{
616 char *p;
617 int sz;
618 PyObject *rc = 0;
619
620 if (!PyArg_ParseTuple(arg, "i:deczero", &sz)) return (0);
621 rc = bytestring_pywrap(0, sz);
622 p = PyString_AS_STRING(rc);
623 memset(p, 0, sz);
624 GC_DECRYPT(GCIPHER_C(me), p, p, sz);
625 return (rc);
626}
627
628static PyObject *gcmeth_setiv(PyObject *me, PyObject *arg)
629{
630 char *p;
6b54260d 631 Py_ssize_t sz;
d7ab1bab 632
633 if (!PyArg_ParseTuple(arg, "s#:setiv", &p, &sz)) goto end;
30eef666 634 if (!GCIPHER_C(me)->ops->setiv) VALERR("`setiv' not supported");
d7ab1bab 635 if (!GC_CLASS(GCIPHER_C(me))->blksz) VALERR("not a block cipher mode");
636 if (sz != GC_CLASS(GCIPHER_C(me))->blksz) VALERR("bad IV length");
637 GC_SETIV(GCIPHER_C(me), p);
638 RETURN_ME;
639end:
640 return (0);
641}
642
91e56f06 643static PyObject *gcmeth_bdry(PyObject *me)
d7ab1bab 644{
30eef666 645 if (!GCIPHER_C(me)->ops->bdry) VALERR("`bdry' not supported");
d7ab1bab 646 if (!GC_CLASS(GCIPHER_C(me))->blksz) VALERR("not a block cipher mode");
647 GC_BDRY(GCIPHER_C(me));
648 RETURN_ME;
649end:
650 return (0);
651}
652
c90f712e 653static const PyGetSetDef gccipher_pygetset[] = {
d7ab1bab 654#define GETSETNAME(op, name) gcc##op##_##name
d96c882e
MW		 655 GET (keysz, "CC.keysz -> acceptable key sizes")
656 GET (blksz, "CC.blksz -> block size, or zero")
657 GET (name, "CC.name -> name of this kind of cipher")
d7ab1bab 658#undef GETSETNAME
659 { 0 }
660};
661
c90f712e 662static const PyMethodDef gcipher_pymethods[] = {
d7ab1bab 663#define METHNAME(name) gcmeth_##name
d96c882e
MW		 664 METH (encrypt, "C.encrypt(PT) -> CT")
665 METH (enczero, "C.enczero(N) -> CT")
666 METH (decrypt, "C.decrypt(CT) -> PT")
667 METH (deczero, "C.deczero(N) -> PT")
668 METH (setiv, "C.setiv(IV)")
91e56f06 669 NAMETH(bdry, "C.bdry()")
d7ab1bab 670#undef METHNAME
671 { 0 }
672};
673
674static PyTypeObject gccipher_pytype_skel = {
6d4db0bf 675 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 676 "GCCipher", /* @tp_name@ */
d7ab1bab 677 sizeof(gccipher_pyobj), /* @tp_basicsize@ */
678 0, /* @tp_itemsize@ */
679
680 0, /* @tp_dealloc@ */
681 0, /* @tp_print@ */
682 0, /* @tp_getattr@ */
683 0, /* @tp_setattr@ */
684 0, /* @tp_compare@ */
685 0, /* @tp_repr@ */
686 0, /* @tp_as_number@ */
687 0, /* @tp_as_sequence@ */
688 0, /* @tp_as_mapping@ */
689 0, /* @tp_hash@ */
690 0, /* @tp_call@ */
691 0, /* @tp_str@ */
692 0, /* @tp_getattro@ */
693 0, /* @tp_setattro@ */
694 0, /* @tp_as_buffer@ */
695 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
696 Py_TPFLAGS_BASETYPE,
697
698 /* @tp_doc@ */
d96c882e 699 "Symmetric cipher metaclass.",
d7ab1bab 700
701 0, /* @tp_traverse@ */
702 0, /* @tp_clear@ */
703 0, /* @tp_richcompare@ */
704 0, /* @tp_weaklistoffset@ */
705 0, /* @tp_iter@ */
963a6148 706 0, /* @tp_iternext@ */
d7ab1bab 707 0, /* @tp_methods@ */
708 0, /* @tp_members@ */
c90f712e 709 PYGETSET(gccipher), /* @tp_getset@ */
d7ab1bab 710 0, /* @tp_base@ */
711 0, /* @tp_dict@ */
712 0, /* @tp_descr_get@ */
713 0, /* @tp_descr_set@ */
714 0, /* @tp_dictoffset@ */
715 0, /* @tp_init@ */
716 PyType_GenericAlloc, /* @tp_alloc@ */
717 abstract_pynew, /* @tp_new@ */
3aa33042 718 0, /* @tp_free@ */
d7ab1bab 719 0 /* @tp_is_gc@ */
720};
721
722static PyTypeObject gcipher_pytype_skel = {
6d4db0bf 723 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 724 "GCipher", /* @tp_name@ */
d7ab1bab 725 sizeof(gcipher_pyobj), /* @tp_basicsize@ */
726 0, /* @tp_itemsize@ */
727
728 gcipher_pydealloc, /* @tp_dealloc@ */
729 0, /* @tp_print@ */
730 0, /* @tp_getattr@ */
731 0, /* @tp_setattr@ */
732 0, /* @tp_compare@ */
733 0, /* @tp_repr@ */
734 0, /* @tp_as_number@ */
735 0, /* @tp_as_sequence@ */
736 0, /* @tp_as_mapping@ */
737 0, /* @tp_hash@ */
738 0, /* @tp_call@ */
739 0, /* @tp_str@ */
740 0, /* @tp_getattro@ */
741 0, /* @tp_setattro@ */
742 0, /* @tp_as_buffer@ */
743 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
744 Py_TPFLAGS_BASETYPE,
745
746 /* @tp_doc@ */
d96c882e 747 "Symmetric cipher, abstract base class.",
d7ab1bab 748
749 0, /* @tp_traverse@ */
750 0, /* @tp_clear@ */
751 0, /* @tp_richcompare@ */
752 0, /* @tp_weaklistoffset@ */
753 0, /* @tp_iter@ */
963a6148 754 0, /* @tp_iternext@ */
c90f712e 755 PYMETHODS(gcipher), /* @tp_methods@ */
d7ab1bab 756 0, /* @tp_members@ */
757 0, /* @tp_getset@ */
758 0, /* @tp_base@ */
759 0, /* @tp_dict@ */
760 0, /* @tp_descr_get@ */
761 0, /* @tp_descr_set@ */
762 0, /* @tp_dictoffset@ */
763 0, /* @tp_init@ */
764 PyType_GenericAlloc, /* @tp_alloc@ */
765 abstract_pynew, /* @tp_new@ */
3aa33042 766 0, /* @tp_free@ */
d7ab1bab 767 0 /* @tp_is_gc@ */
768};
769
bebf03ab
MW		 770/*----- Authenticated encryption ------------------------------------------*/
771
c6e89d48
MW		 772static PyTypeObject *gcaead_pytype, *gaeadkey_pytype;
773static PyTypeObject *gcaeadaad_pytype, *gaeadaad_pytype;
774static PyTypeObject *gcaeadenc_pytype, *gaeadenc_pytype;
775static PyTypeObject *gcaeaddec_pytype, *gaeaddec_pytype;
776
777typedef struct gcaead_pyobj {
778 PyHeapTypeObject ty;
779 gcaead *aec;
780 struct gcaeadaad_pyobj *aad;
781 struct gcaeadenc_pyobj *enc;
782 struct gcaeaddec_pyobj *dec;
783} gcaead_pyobj;
784
785#define GCAEAD_PYCHECK(o) PyObject_TypeCheck((o), gcaead_pytype)
786#define GCAEAD_AEC(o) (((gcaead_pyobj *)(o))->aec)
787#define GCAEAD_AAD(o) (((gcaead_pyobj *)(o))->aad)
788#define GCAEAD_ENC(o) (((gcaead_pyobj *)(o))->enc)
789#define GCAEAD_DEC(o) (((gcaead_pyobj *)(o))->dec)
790static PyObject *gcaead_pywrap(gcaead *);
791
792typedef struct gaeadkey_pyobj {
793 PyObject_HEAD
794 gaead_key *k;
795} gaeadkey_pyobj;
796
797#define GAEADKEY_PYCHECK(o) PyObject_TypeCheck((o), gaeadkey_pytype)
798#define GAEADKEY_K(o) (((gaeadkey_pyobj *)(o))->k)
799
800typedef struct gcaeadaad_pyobj {
801 PyHeapTypeObject ty;
802 gcaead_pyobj *key;
803} gcaeadaad_pyobj;
804
805#define GCAEADAAD_KEY(o) (((gcaeadaad_pyobj *)(o))->key)
806static PyObject *gaeadaad_pywrap(PyObject *, gaead_aad *, unsigned, size_t);
807
808typedef struct gaeadaad_pyobj {
809 PyObject_HEAD
810 gaead_aad *a;
811 unsigned f;
812#define AEADF_DEAD 32768u
813 size_t hsz, hlen;
814} gaeadaad_pyobj;
815
816#define GAEADAAD_PYCHECK(o) PyObject_TypeCheck((o), gaeadaad_pytype)
817#define GAEADAAD_A(o) (((gaeadaad_pyobj *)(o))->a)
818#define GAEADAAD_F(o) (((gaeadaad_pyobj *)(o))->f)
819#define GAEADAAD_HSZ(o) (((gaeadaad_pyobj *)(o))->hsz)
820#define GAEADAAD_HLEN(o) (((gaeadaad_pyobj *)(o))->hlen)
821
822typedef struct gcaeadenc_pyobj {
823 PyHeapTypeObject ty;
824 gcaead_pyobj *key;
825} gcaeadenc_pyobj;
826
827#define GCAEADENC_KEY(o) (((gcaeadenc_pyobj *)(o))->key)
828static PyObject *gaeadenc_pywrap(PyObject *, gaead_enc *, unsigned,
829 size_t, size_t, size_t);
830
831typedef struct gaeadenc_pyobj {
832 PyObject_HEAD
833 gaead_enc *e;
834 gaeadaad_pyobj *aad;
835 unsigned f;
836 size_t hsz, msz, tsz;
837 size_t mlen;
838} gaeadenc_pyobj;
839
840#define GAEADENC_PYCHECK(o) PyObject_TypeCheck((o), gaeadenc_pytype)
841#define GAEADENC_AAD(o) (((gaeadenc_pyobj *)(o))->aad)
842#define GAEADENC_E(o) (((gaeadenc_pyobj *)(o))->e)
843#define GAEADENC_F(o) (((gaeadenc_pyobj *)(o))->f)
844#define GAEADENC_HSZ(o) (((gaeadenc_pyobj *)(o))->hsz)
845#define GAEADENC_MSZ(o) (((gaeadenc_pyobj *)(o))->msz)
846#define GAEADENC_TSZ(o) (((gaeadenc_pyobj *)(o))->tsz)
847#define GAEADENC_MLEN(o) (((gaeadenc_pyobj *)(o))->mlen)
848
849typedef struct gcaeaddec_pyobj {
850 PyHeapTypeObject ty;
851 gcaead_pyobj *key;
852} gcaeaddec_pyobj;
853
854#define GCAEADDEC_KEY(o) (((gcaeaddec_pyobj *)(o))->key)
855static PyObject *gaeaddec_pywrap(PyObject *, gaead_dec *, unsigned,
856 size_t, size_t, size_t);
857
858typedef struct gaeaddec_pyobj {
859 PyObject_HEAD
860 gaead_dec *d;
861 gaeadaad_pyobj *aad;
862 unsigned f;
863 size_t hsz, csz, tsz;
864 size_t clen;
865} gaeaddec_pyobj;
866
867#define GAEADDEC_PYCHECK(o) PyObject_TypeCheck((o), gaeaddec_pytype)
868#define GAEADDEC_AAD(o) (((gaeaddec_pyobj *)(o))->aad)
869#define GAEADDEC_D(o) (((gaeaddec_pyobj *)(o))->d)
870#define GAEADDEC_F(o) (((gaeaddec_pyobj *)(o))->f)
871#define GAEADDEC_HSZ(o) (((gaeaddec_pyobj *)(o))->hsz)
872#define GAEADDEC_CSZ(o) (((gaeaddec_pyobj *)(o))->csz)
873#define GAEADDEC_TSZ(o) (((gaeaddec_pyobj *)(o))->tsz)
874#define GAEADDEC_CLEN(o) (((gaeaddec_pyobj *)(o))->clen)
875
876static PyObject *gaeadkey_pywrap(PyObject *cobj, gaead_key *k)
bebf03ab
MW		 877{
878 gaeadkey_pyobj *gk;
879
880 if (!cobj) cobj = gcaead_pywrap((/*unconst*/ gcaead *)GAEAD_CLASS(k));
881 else Py_INCREF(cobj);
882 gk = PyObject_NEW(gaeadkey_pyobj, (PyTypeObject *)cobj);
883 gk->k = k;
884 return ((PyObject *)gk);
885}
886
887static PyObject *gaeadkey_pynew(PyTypeObject *ty,
888 PyObject *arg, PyObject *kw)
889{
890 static const char *const kwlist[] = { "k", 0 };
891 char *k;
892 Py_ssize_t sz;
893
894 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", KWLIST, &k, &sz))
895 goto end;
896 if (keysz(sz, GCAEAD_AEC(ty)->keysz) != sz) VALERR("bad key length");
897 return (gaeadkey_pywrap((PyObject *)ty,
898 GAEAD_KEY(GCAEAD_AEC(ty), k, sz)));
899end:
900 return (0);
901}
902
c6e89d48 903static PyObject *gcaead_pywrap(gcaead *aec)
bebf03ab
MW		 904{
905 gcaead_pyobj *gck;
906 gcaeadaad_pyobj *gca;
907 gcaeadenc_pyobj *gce;
908 gcaeaddec_pyobj *gcd;
909
910#define MKTYPE(obj, thing, newfn, namefmt) do { \
911 (obj) = newtype(gcaead_pytype, 0, 0); \
912 (obj)->ty.ht_name = PyString_FromFormat(namefmt, aec->name); \
913 (obj)->ty.ht_type.tp_name = PyString_AS_STRING((obj)->ty.ht_name); \
914 (obj)->ty.ht_type.tp_basicsize = sizeof(gaead##thing##_pyobj); \
915 (obj)->ty.ht_type.tp_base = gaead##thing##_pytype; \
916 Py_INCREF(gaead##thing##_pytype); \
917 (obj)->ty.ht_type.tp_flags = \
918 (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HEAPTYPE); \
919 (obj)->ty.ht_type.tp_alloc = PyType_GenericAlloc; \
920 (obj)->ty.ht_type.tp_free = 0; \
921 (obj)->ty.ht_type.tp_new = newfn; \
922 typeready(&(obj)->ty.ht_type); \
923} while (0)
924
925 MKTYPE(gck, key, gaeadkey_pynew, "%s(key)");
926 MKTYPE(gca, aad, abstract_pynew, "%s(aad-hash)");
927 MKTYPE(gce, enc, abstract_pynew, "%s(encrypt)");
928 MKTYPE(gcd, dec, abstract_pynew, "%s(decrypt)");
929
930#undef MKTYPE
931
932 gck->aec = aec; gck->aad = gca; gck->enc = gce; gck->dec = gcd;
933 gca->key = gce->key = gcd->key = gck;
934 return ((PyObject *)gck);
935}
936
937static void gaeadkey_pydealloc(PyObject *me)
938 { GAEAD_DESTROY(GAEADKEY_K(me)); Py_DECREF(me->ob_type); FREEOBJ(me); }
939
940static PyObject *gcaeget_name(PyObject *me, void *hunoz)
941 { return (PyString_FromString(GCAEAD_AEC(me)->name)); }
942
943static PyObject *gcaeget_keysz(PyObject *me, void *hunoz)
944 { return (keysz_pywrap(GCAEAD_AEC(me)->keysz)); }
945
946static PyObject *gcaeget_noncesz(PyObject *me, void *hunoz)
947 { return (keysz_pywrap(GCAEAD_AEC(me)->noncesz)); }
948
949static PyObject *gcaeget_tagsz(PyObject *me, void *hunoz)
950 { return (keysz_pywrap(GCAEAD_AEC(me)->tagsz)); }
951
952static PyObject *gcaeget_blksz(PyObject *me, void *hunoz)
953 { return (PyInt_FromLong(GCAEAD_AEC(me)->blksz)); }
954
955static PyObject *gcaeget_bufsz(PyObject *me, void *hunoz)
956 { return (PyInt_FromLong(GCAEAD_AEC(me)->bufsz)); }
957
958static PyObject *gcaeget_ohd(PyObject *me, void *hunoz)
959 { return (PyInt_FromLong(GCAEAD_AEC(me)->ohd)); }
960
961static PyObject *gcaeget_flags(PyObject *me, void *hunoz)
962 { return (PyInt_FromLong(GCAEAD_AEC(me)->f)); }
963
c90f712e 964static const PyGetSetDef gcaead_pygetset[] = {
bebf03ab 965#define GETSETNAME(op, name) gcae##op##_##name
d96c882e
MW		 966 GET (keysz, "AEC.keysz -> acceptable key sizes")
967 GET (noncesz, "AEC.noncesz -> acceptable nonce sizes")
968 GET (tagsz, "AEC.tagsz -> acceptable tag sizes")
969 GET (blksz, "AEC.blksz -> block size, or zero")
970 GET (bufsz, "AEC.bufsz -> amount of data buffered internally")
971 GET (ohd, "AEC.ohd -> maximum encryption overhead")
972 GET (name, "AEC.name -> name of this kind of AEAD scheme")
973 GET (flags, "AEC.flags -> mask of `AEADF_...' flags")
bebf03ab
MW		 974#undef GETSETNAME
975 { 0 }
976};
977
91e56f06 978static PyObject *gaekmeth_aad(PyObject *me)
bebf03ab
MW		 979{
980 const gaead_key *k = GAEADKEY_K(me);
981 PyObject *rc = 0;
982
bebf03ab
MW		 983 if (k->ops->c->f&AEADF_AADNDEP)
984 VALERR("aad must be associated with enc/dec op");
985 rc = gaeadaad_pywrap((PyObject *)GCAEAD_AAD(me->ob_type),
986 GAEAD_AAD(k), 0, 0);
987end:
988 return (rc);
989}
990
991static int check_aead_encdec(const gcaead *aec, unsigned *f_out, size_t nsz,
992 PyObject *hszobj, size_t *hsz_out,
993 PyObject *mszobj, size_t *msz_out,
994 PyObject *tszobj, size_t *tsz_out)
995{
996 unsigned f = 0, miss;
997 int rc = -1;
998
999 if (hszobj != Py_None)
1000 { f |= AEADF_PCHSZ; if (!convszt(hszobj, hsz_out)) goto end; }
1001 if (mszobj != Py_None)
1002 { f |= AEADF_PCMSZ; if (!convszt(mszobj, msz_out)) goto end; }
1003 if (tszobj != Py_None)
1004 { f |= AEADF_PCTSZ; if (!convszt(tszobj, tsz_out)) goto end; }
1005 miss = aec->f&~f;
1006 if (miss&AEADF_PCHSZ) VALERR("header length precommitment required");
1007 if (miss&AEADF_PCMSZ) VALERR("message length precommitment required");
1008 if (miss&AEADF_PCTSZ) VALERR("tag length precommitment required");
1009 if (keysz(nsz, aec->noncesz) != nsz) VALERR("bad nonce length");
1010 if (tszobj != Py_None && keysz(*tsz_out, aec->tagsz) != *tsz_out)
1011 VALERR("bad tag length");
1012 *f_out = f | aec->f; rc = 0;
1013end:
1014 return (rc);
1015}
1016
1017static PyObject *gaekmeth_enc(PyObject *me, PyObject *arg, PyObject *kw)
1018{
1019 static const char *const kwlist[] = { "nonce", "hsz", "msz", "tsz", 0 };
1020 const gaead_key *k = GAEADKEY_K(me);
1021 gaead_enc *e;
1022 PyObject *rc = 0;
1023 char *n; Py_ssize_t nsz;
1024 PyObject *hszobj = Py_None, *mszobj = Py_None, *tszobj = Py_None;
1025 size_t hsz = 0, msz = 0, tsz = 0;
1026 unsigned f;
1027
1028 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#|OOO:enc", KWLIST,
1029 &n, &nsz, &hszobj, &mszobj, &tszobj))
1030 goto end;
1031 if (check_aead_encdec(k->ops->c, &f, nsz,
1032 hszobj, &hsz, mszobj, &msz, tszobj, &tsz))
1033 goto end;
1034 e = GAEAD_ENC(GAEADKEY_K(me), n, nsz, hsz, msz, tsz);
1035 if (!e) VALERR("bad aead parameter combination");
1036 rc = gaeadenc_pywrap((PyObject *)GCAEAD_ENC(me->ob_type),
1037 e, f, hsz, msz, tsz);
1038end:
1039 return (rc);
1040}
1041
1042static PyObject *gaekmeth_dec(PyObject *me, PyObject *arg, PyObject *kw)
1043{
1044 static const char *const kwlist[] = { "nonce", "hsz", "csz", "tsz", 0 };
1045 const gaead_key *k = GAEADKEY_K(me);
1046 gaead_dec *d;
1047 PyObject *rc = 0;
1048 char *n; Py_ssize_t nsz;
1049 PyObject *hszobj = Py_None, *cszobj = Py_None, *tszobj = Py_None;
1050 size_t hsz = 0, csz = 0, tsz = 0;
1051 unsigned f;
1052
1053 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#|OOO:dec", KWLIST,
1054 &n, &nsz, &hszobj, &cszobj, &tszobj))
1055 goto end;
1056 if (check_aead_encdec(k->ops->c, &f, nsz,
1057 hszobj, &hsz, cszobj, &csz, tszobj, &tsz))
1058 goto end;
1059 d = GAEAD_DEC(GAEADKEY_K(me), n, nsz, hsz, csz, tsz);
1060 if (!d) VALERR("bad aead parameter combination");
1061 rc = gaeaddec_pywrap((PyObject *)GCAEAD_DEC(me->ob_type),
1062 d, f, hsz, csz, tsz);
1063end:
1064 return (rc);
1065}
1066
c90f712e 1067static const PyMethodDef gaeadkey_pymethods[] = {
bebf03ab 1068#define METHNAME(name) gaekmeth_##name
91e56f06 1069 NAMETH(aad, "KEY.aad() -> AAD")
d96c882e
MW		 1070 KWMETH(enc, "KEY.enc(NONCE, [hsz], [msz], [tsz]) -> ENC")
1071 KWMETH(dec, "KEY.dec(NONCE, [hsz], [csz], [tsz]) -> DEC")
bebf03ab
MW		 1072#undef METHNAME
1073 { 0 }
1074};
1075
c6e89d48
MW		 1076static PyObject *gaeadaad_pywrap(PyObject *cobj, gaead_aad *a,
1077 unsigned f, size_t hsz)
bebf03ab
MW		 1078{
1079 gaeadaad_pyobj *ga;
1080
1081 assert(cobj); Py_INCREF(cobj);
1082 ga = PyObject_NEW(gaeadaad_pyobj, (PyTypeObject *)cobj);
1083 ga->a = a; ga->f = f; ga->hsz = hsz; ga->hlen = 0;
1084 return ((PyObject *)ga);
1085}
1086
1087static void gaeadaad_pydealloc(PyObject *me)
1088{
1089 gaeadaad_pyobj *ga = (gaeadaad_pyobj *)me;
1090
1091 if (ga->a) GAEAD_DESTROY(ga->a);
1092 Py_DECREF(me->ob_type); FREEOBJ(me);
1093}
1094
1095static int gaea_check(PyObject *me)
1096{
1097 gaeadaad_pyobj *ga = (gaeadaad_pyobj *)me;
1098 int rc = -1;
1099
1100 if ((ga->f&AEADF_DEAD) || !ga->a) VALERR("aad object no longer active");
1101 rc = 0;
1102end:
1103 return (rc);
1104}
1105
1106static void gaea_invalidate(gaeadaad_pyobj *ga)
1107 { if (ga) ga->f |= AEADF_DEAD; }
1108
1109static void gaea_sever(gaeadaad_pyobj **ga_inout)
1110{
1111 gaeadaad_pyobj *ga = *ga_inout;
1112 if (ga) { ga->f |= AEADF_DEAD; ga->a = 0; Py_DECREF(ga); *ga_inout = 0; }
1113}
1114
1115static PyObject *gaeaget_hsz(PyObject *me, void *hunoz)
1116{
1117 if (gaea_check(me)) return (0);
1118 else if (GAEADAAD_F(me)&AEADF_PCHSZ) return getulong(GAEADAAD_HSZ(me));
1119 else RETURN_NONE;
1120}
1121
1122static PyObject *gaeaget_hlen(PyObject *me, void *hunoz)
1123 { return (gaea_check(me) ? 0 : getulong(GAEADAAD_HLEN(me))); }
1124
c90f712e 1125static const PyGetSetDef gaeadaad_pygetset[] = {
bebf03ab 1126#define GETSETNAME(op, name) gaea##op##_##name
d96c882e
MW		 1127 GET (hsz, "AAD.hsz -> precommitted header length or `None'")
1128 GET (hlen, "AAD.hlen -> header length so far")
bebf03ab
MW		 1129#undef GETSETNAME
1130 { 0 }
1131};
1132
91e56f06 1133static PyObject *gaeameth_copy(PyObject *me)
bebf03ab
MW		 1134{
1135 PyObject *rc = 0;
1136
bebf03ab
MW		 1137 if (gaea_check(me)) goto end;
1138 if (GAEADAAD_F(me)&AEADF_AADNDEP)
1139 VALERR("can't duplicate nonce-dependent aad");
1140 rc = gaeadaad_pywrap((PyObject *)me->ob_type,
1141 GAEAD_DUP(GAEADAAD_A(me)), 0, 0);
de7abe02 1142 GAEADAAD_HLEN(rc) = GAEADAAD_HLEN(me);
bebf03ab
MW		 1143end:
1144 return (rc);
1145}
1146
1147static int gaeadaad_hash(PyObject *me, const void *h, size_t hsz)
1148{
1149 gaeadaad_pyobj *ga = (gaeadaad_pyobj *)me;
1150 int rc = -1;
1151
1152 if (gaea_check(me)) goto end;
1153 if ((ga->f&AEADF_NOAAD) && hsz)
1154 VALERR("header data not permitted");
1155 if ((ga->f&AEADF_PCHSZ) && hsz > ga->hsz - ga->hlen)
1156 VALERR("too large for precommitted header length");
1157 GAEAD_HASH(ga->a, h, hsz); ga->hlen += hsz;
1158 rc = 0;
1159end:
1160 return (rc);
1161}
1162
1163
1164static PyObject *gaeameth_hash(PyObject *me, PyObject *arg)
1165{
1166 char *h; Py_ssize_t hsz;
1167
1168 if (!PyArg_ParseTuple(arg, "s#:hash", &h, &hsz)) return (0);
1169 if (gaeadaad_hash(me, h, hsz)) return (0);
1170 RETURN_ME;
1171}
1172
1173#define GAEAMETH_HASHU_(n, W, w) \
1174 static PyObject *gaeameth_hashu##w(PyObject *me, PyObject *arg) \
1175 { \
1176 uint##n x; octet b[SZ_##W]; \
1177 if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) return (0); \
1178 STORE##W(b, x); if (gaeadaad_hash(me, b, sizeof(b))) return (0); \
1179 RETURN_ME; \
1180 }
1181DOUINTCONV(GAEAMETH_HASHU_)
1182
1183#define GAEAMETH_HASHBUF_(n, W, w) \
1184 static PyObject *gaeameth_hashbuf##w(PyObject *me, PyObject *arg) \
1185 { \
1186 char *p; Py_ssize_t sz; octet b[SZ_##W]; \
1187 if (!PyArg_ParseTuple(arg, "s#:hashbuf" #w, &p, &sz)) goto end; \
1188 if (sz > MASK##n) TYERR("string too long"); \
1189 STORE##W(b, sz); if (gaeadaad_hash(me, b, sizeof(b))) goto end; \
1190 if (gaeadaad_hash(me, p, sz)) goto end; \
1191 RETURN_ME; \
1192 end: \
1193 return (0); \
1194 }
1195DOUINTCONV(GAEAMETH_HASHBUF_)
1196
1197static PyObject *gaeameth_hashstrz(PyObject *me, PyObject *arg)
1198{
1199 char *p;
1200 if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0);
1201 if (gaeadaad_hash(me, p, strlen(p) + 1)) return (0);
1202 RETURN_ME;
1203}
1204
c90f712e 1205static const PyMethodDef gaeadaad_pymethods[] = {
bebf03ab 1206#define METHNAME(name) gaeameth_##name
91e56f06 1207 NAMETH(copy, "AAD.copy() -> AAD'")
d96c882e 1208 METH (hash, "AAD.hash(H)")
bebf03ab
MW		 1209#define METHU_(n, W, w) METH(hashu##w, "AAD.hashu" #w "(WORD)")
1210 DOUINTCONV(METHU_)
1211#undef METHU_
1212#define METHBUF_(n, W, w) METH(hashbuf##w, "AAD.hashbuf" #w "(BYTES)")
1213 DOUINTCONV(METHBUF_)
1214#undef METHBUF_
d96c882e 1215 METH (hashstrz, "AAD.hashstrz(STRING)")
bebf03ab
MW		 1216#undef METHNAME
1217 { 0 }
1218};
1219
c6e89d48
MW		 1220static PyObject *gaeadenc_pywrap(PyObject *cobj, gaead_enc *e, unsigned f,
1221 size_t hsz, size_t msz, size_t tsz)
bebf03ab
MW		 1222{
1223 gaeadenc_pyobj *ge;
1224
1225 assert(cobj); Py_INCREF(cobj);
1226 ge = PyObject_NEW(gaeadenc_pyobj, (PyTypeObject *)cobj);
1227 ge->e = e; ge->f = f; ge->hsz = hsz; ge->msz = msz; ge->tsz = tsz;
1228 ge->aad = 0; ge->mlen = 0;
1229 return ((PyObject *)ge);
1230}
1231
1232static void gaeadenc_pydealloc(PyObject *me)
1233{
1234 gaeadenc_pyobj *ge = (gaeadenc_pyobj *)me;
1235
1236 gaea_sever(&ge->aad); GAEAD_DESTROY(ge->e);
1237 Py_DECREF(me->ob_type); FREEOBJ(me);
1238}
1239
1240static PyObject *gaeeget_hsz(PyObject *me, void *hunoz)
1241{
1242 if (GAEADENC_F(me)&AEADF_PCHSZ) return getulong(GAEADENC_HSZ(me));
1243 else RETURN_NONE;
1244}
1245
1246static PyObject *gaeeget_msz(PyObject *me, void *hunoz)
1247{
1248 if (GAEADENC_F(me)&AEADF_PCMSZ) return getulong(GAEADENC_MSZ(me));
1249 else RETURN_NONE;
1250}
1251
1252static PyObject *gaeeget_tsz(PyObject *me, void *hunoz)
1253{
1254 if (GAEADENC_F(me)&AEADF_PCTSZ) return getulong(GAEADENC_TSZ(me));
1255 else RETURN_NONE;
1256}
1257
1258static PyObject *gaeeget_mlen(PyObject *me, void *hunoz)
1259 { return getulong(GAEADENC_MLEN(me)); }
1260
c90f712e 1261static const PyGetSetDef gaeadenc_pygetset[] = {
bebf03ab 1262#define GETSETNAME(op, name) gaee##op##_##name
d96c882e
MW		 1263 GET (hsz, "ENC.hsz -> precommitted header length or `None'")
1264 GET (msz, "ENC.msz -> precommitted message length or `None'")
1265 GET (tsz, "ENC.tsz -> precommitted tag length or `None'")
1266 GET (mlen, "ENC.mlen -> message length so far")
bebf03ab
MW		 1267#undef GETSETNAME
1268 { 0 }
1269};
1270
91e56f06 1271static PyObject *gaeemeth_aad(PyObject *me)
bebf03ab
MW		 1272{
1273 gaeadenc_pyobj *ge = (gaeadenc_pyobj *)me;
1274 PyObject *rc = 0;
1275
bebf03ab
MW		 1276 if (!(ge->f&AEADF_AADNDEP))
1277 rc = gaeadaad_pywrap((PyObject *)GCAEADENC_KEY(ge->ob_type)->aad,
1278 GAEAD_AAD(ge->e), 0, 0);
1279 else {
1280 if ((ge->f&AEADF_AADFIRST) && ge->mlen)
1281 VALERR("too late for aad");
1282 if (!ge->aad)
1283 ge->aad = (gaeadaad_pyobj *)
1284 gaeadaad_pywrap((PyObject *)GCAEADENC_KEY(ge->ob_type)->aad,
f77c6b68
MW		 1285 GAEAD_AAD(ge->e), ge->f&(AEADF_PCHSZ | AEADF_NOAAD),
1286 ge->hsz);
bebf03ab
MW		 1287 Py_INCREF(ge->aad);
1288 rc = (PyObject *)ge->aad;
1289 }
1290end:
1291 return (rc);
1292}
1293
1294static PyObject *gaeemeth_reinit(PyObject *me, PyObject *arg, PyObject *kw)
1295{
1296 static const char *const kwlist[] = { "nonce", "hsz", "msz", "tsz", 0 };
1297 gaeadenc_pyobj *ge = (gaeadenc_pyobj *)me;
1298 char *n; Py_ssize_t nsz;
1299 PyObject *hszobj = Py_None, *mszobj = Py_None, *tszobj = Py_None;
1300 size_t hsz = 0, msz = 0, tsz = 0;
1301 unsigned f;
1302
1303 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#|OOO:enc", KWLIST,
1304 &n, &nsz, &hszobj, &mszobj, &tszobj))
1305 goto end;
1306 if (check_aead_encdec(ge->e->ops->c, &f, nsz,
1307 hszobj, &hsz, mszobj, &msz, tszobj, &tsz))
1308 goto end;
1309 if (GAEAD_REINIT(ge->e, n, nsz, hsz, msz, tsz))
1310 VALERR("bad aead parameter combination");
1311 gaea_sever(&ge->aad);
1312 ge->f = f; ge->hsz = hsz; ge->msz = msz; ge->tsz = tsz;
1313end:
1314 return (0);
1315}
1316
1317static PyObject *gaeemeth_encrypt(PyObject *me, PyObject *arg)
1318{
1319 gaeadenc_pyobj *ge = (gaeadenc_pyobj *)me;
1320 char *m; Py_ssize_t msz;
1321 char *c = 0; size_t csz; buf b;
1322 int err;
1323 PyObject *rc = 0;
1324
1325 if (!PyArg_ParseTuple(arg, "s#:encrypt", &m, &msz)) goto end;
1326 if (ge->f&AEADF_AADFIRST) {
1327 if ((ge->f&AEADF_PCHSZ) && (ge->aad ? ge->aad->hlen : 0) != ge->hsz)
1328 VALERR("header doesn't match precommitted length");
1329 gaea_invalidate(ge->aad);
1330 }
1331 if ((ge->f&AEADF_PCMSZ) && msz > ge->msz - ge->mlen)
1332 VALERR("too large for precommitted message length");
1333 csz = msz + ge->e->ops->c->bufsz; c = xmalloc(csz); buf_init(&b, c, csz);
1334 err = GAEAD_ENCRYPT(ge->e, m, msz, &b); assert(!err); (void)err;
1335 buf_flip(&b); rc = bytestring_pywrapbuf(&b); ge->mlen += msz;
1336end:
1337 xfree(c);
1338 return (rc);
1339}
1340
1341static PyObject *gaeemeth_done(PyObject *me, PyObject *arg, PyObject *kw)
1342{
1343 static const char *const kwlist[] = { "tsz", "aad", 0 };
1344 gaeadenc_pyobj *ge = (gaeadenc_pyobj *)me;
1345 PyObject *aad = Py_None;
1346 char *c = 0; size_t csz; buf b;
1347 PyObject *tszobj = Py_None; PyObject *tag; size_t tsz;
1348 int err;
1349 PyObject *rc = 0;
1350
1351 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|OO:done", KWLIST,
1352 &tszobj, &aad))
1353 goto end;
1354 if (tszobj != Py_None && !convszt(tszobj, &tsz)) goto end;
1355 if (aad != Py_None &&
1356 !PyObject_TypeCheck(aad,
1357 (PyTypeObject *)GCAEADENC_KEY(me->ob_type)->aad))
1358 TYERR("wanted aad");
1359 if ((ge->f&AEADF_AADNDEP) && aad != Py_None && aad != (PyObject *)ge->aad)
1360 VALERR("mismatched aad");
1361 if ((ge->f&AEADF_PCHSZ) &&
1362 (aad == Py_None ? 0 : GAEADAAD_HLEN(aad)) != ge->hsz)
1363 VALERR("header doesn't match precommitted length");
1364 if ((ge->f&AEADF_PCMSZ) && ge->mlen != ge->msz)
1365 VALERR("message doesn't match precommitted length");
1366 if (tszobj == Py_None) {
1367 if (ge->f&AEADF_PCTSZ) tsz = ge->tsz;
1368 else tsz = keysz(0, ge->e->ops->c->tagsz);
1369 } else {
1370 if ((ge->f&AEADF_PCTSZ) && tsz != ge->tsz)
1371 VALERR("tag length doesn't match precommitted value");
1372 if (keysz(tsz, ge->e->ops->c->tagsz) != tsz) VALERR("bad tag length");
1373 }
1374 csz = ge->e->ops->c->bufsz; c = xmalloc(csz); buf_init(&b, c, csz);
1375 tag = bytestring_pywrap(0, tsz);
1376 err = GAEAD_DONE(ge->e, aad == Py_None ? 0 : GAEADAAD_A(aad), &b,
1377 PyString_AS_STRING(tag), tsz);
1378 assert(!err); (void)err;
1379 buf_flip(&b); rc = Py_BuildValue("NN", bytestring_pywrapbuf(&b), tag);
1380end:
1381 xfree(c);
1382 return (rc);
1383}
1384
c90f712e 1385static const PyMethodDef gaeadenc_pymethods[] = {
bebf03ab 1386#define METHNAME(name) gaeemeth_##name
91e56f06 1387 NAMETH(aad, "ENC.aad() -> AAD")
d96c882e
MW		 1388 KWMETH(reinit, "ENC.reinit(NONCE, [hsz], [msz], [tsz])")
1389 METH (encrypt, "ENC.encrypt(MSG) -> CT")
1390 KWMETH(done, "ENC.done([tsz], [aad]) -> CT, TAG")
bebf03ab
MW		 1391#undef METHNAME
1392 { 0 }
1393};
1394
c6e89d48
MW		 1395static PyObject *gaeaddec_pywrap(PyObject *cobj, gaead_dec *d, unsigned f,
1396 size_t hsz, size_t csz, size_t tsz)
bebf03ab
MW		 1397{
1398 gaeaddec_pyobj *gd;
1399 assert(cobj); Py_INCREF(cobj);
1400 gd = PyObject_NEW(gaeaddec_pyobj, (PyTypeObject *)cobj);
1401 gd->d = d; gd->f = f; gd->hsz = hsz; gd->csz = csz; gd->tsz = tsz;
1402 gd->aad = 0; gd->clen = 0;
1403 return ((PyObject *)gd);
1404}
1405
1406static void gaeaddec_pydealloc(PyObject *me)
1407{
1408 gaeaddec_pyobj *gd = (gaeaddec_pyobj *)me;
1409
1410 gaea_sever(&gd->aad); GAEAD_DESTROY(GAEADDEC_D(me));
1411 Py_DECREF(me->ob_type); FREEOBJ(me);
1412}
1413
1414static PyObject *gaedget_hsz(PyObject *me, void *hunoz)
1415{
1416 if (GAEADDEC_F(me)&AEADF_PCHSZ) return getulong(GAEADDEC_HSZ(me));
1417 else RETURN_NONE;
1418}
1419
1420static PyObject *gaedget_csz(PyObject *me, void *hunoz)
1421{
1422 if (GAEADDEC_F(me)&AEADF_PCMSZ) return getulong(GAEADDEC_CSZ(me));
1423 else RETURN_NONE;
1424}
1425
1426static PyObject *gaedget_tsz(PyObject *me, void *hunoz)
1427{
1428 if (GAEADDEC_F(me)&AEADF_PCTSZ) return getulong(GAEADDEC_TSZ(me));
1429 else RETURN_NONE;
1430}
1431
1432static PyObject *gaedget_clen(PyObject *me, void *hunoz)
1433 { return getulong(GAEADDEC_CLEN(me)); }
1434
c90f712e 1435static const PyGetSetDef gaeaddec_pygetset[] = {
bebf03ab 1436#define GETSETNAME(op, name) gaed##op##_##name
d96c882e
MW		 1437 GET (hsz, "DEC.hsz -> precommitted header length or `None'")
1438 GET (csz, "DEC.csz -> precommitted ciphertext length or `None'")
1439 GET (tsz, "DEC.tsz -> precommitted tag length or `None'")
1440 GET (clen, "DEC.clen -> ciphertext length so far")
bebf03ab
MW		 1441#undef GETSETNAME
1442 { 0 }
1443};
1444
91e56f06 1445static PyObject *gaedmeth_aad(PyObject *me)
bebf03ab
MW		 1446{
1447 gaeaddec_pyobj *gd = (gaeaddec_pyobj *)me;
1448
bebf03ab
MW		 1449 if (!(gd->f&AEADF_AADNDEP))
1450 return (gaeadaad_pywrap((PyObject *)GCAEADDEC_KEY(gd->ob_type)->aad,
1451 GAEAD_AAD(gd->d), 0, 0));
1452 else {
1453 if (!gd->aad)
1454 gd->aad = (gaeadaad_pyobj *)
1455 gaeadaad_pywrap((PyObject *)GCAEADENC_KEY(gd->ob_type)->aad,
f77c6b68
MW		 1456 GAEAD_AAD(gd->d), gd->f&(AEADF_PCHSZ | AEADF_NOAAD),
1457 gd->hsz);
bebf03ab
MW		 1458 Py_INCREF(gd->aad);
1459 return ((PyObject *)gd->aad);
1460 }
1461}
1462
1463static PyObject *gaedmeth_reinit(PyObject *me, PyObject *arg, PyObject *kw)
1464{
1465 static const char *const kwlist[] = { "nonce", "hsz", "csz", "tsz", 0 };
1466 gaeaddec_pyobj *gd = (gaeaddec_pyobj *)me;
1467 char *n; Py_ssize_t nsz;
1468 PyObject *hszobj = Py_None, *cszobj = Py_None, *tszobj = Py_None;
1469 size_t hsz = 0, csz = 0, tsz = 0;
1470 unsigned f;
1471
1472 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#|OOO:enc", KWLIST,
1473 &n, &nsz, &hszobj, &cszobj, &tszobj))
1474 goto end;
1475 if (check_aead_encdec(gd->d->ops->c, &f, nsz,
1476 hszobj, &hsz, cszobj, &csz, tszobj, &tsz))
1477 goto end;
1478 if (GAEAD_REINIT(gd->d, n, nsz, hsz, csz, tsz))
1479 VALERR("bad aead parameter combination");
1480 gaea_sever(&gd->aad);
1481 gd->f = f; gd->hsz = hsz; gd->csz = csz; gd->tsz = tsz;
1482end:
1483 return (0);
1484}
1485
1486static PyObject *gaedmeth_decrypt(PyObject *me, PyObject *arg)
1487{
1488 gaeaddec_pyobj *gd = (gaeaddec_pyobj *)me;
1489 char *c; Py_ssize_t csz;
1490 char *m = 0; size_t msz; buf b;
1491 int err;
1492 PyObject *rc = 0;
1493
1494 if (!PyArg_ParseTuple(arg, "s#:decrypt", &c, &csz)) goto end;
1495 if (gd->f&AEADF_AADFIRST) {
1496 if ((gd->f&AEADF_PCHSZ) && (gd->aad ? gd->aad->hlen : 0) != gd->hsz)
1497 VALERR("header doesn't match precommitted length");
1498 gaea_invalidate(gd->aad);
1499 }
1500 if ((gd->f&AEADF_PCMSZ) && csz > gd->csz - gd->clen)
1501 VALERR("too large for precommitted message length");
1502 msz = csz + gd->d->ops->c->bufsz; m = xmalloc(msz); buf_init(&b, m, msz);
1503 err = GAEAD_DECRYPT(gd->d, c, csz, &b); assert(!err); (void)err;
1504 buf_flip(&b); rc = bytestring_pywrapbuf(&b); gd->clen += csz;
1505end:
1506 xfree(m);
1507 return (rc);
1508}
1509
1510static PyObject *gaedmeth_done(PyObject *me, PyObject *arg, PyObject *kw)
1511{
1512 static const char *const kwlist[] = { "tag", "aad", 0 };
1513 gaeaddec_pyobj *gd = (gaeaddec_pyobj *)me;
1514 PyObject *aad = Py_None;
1515 char *t; Py_ssize_t tsz;
1516 char *m = 0; size_t msz; buf b;
1517 int err;
1518 PyObject *rc = 0;
1519
1520 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#|O:done", KWLIST,
1521 &t, &tsz, &aad))
1522 goto end;
1523 if (aad != Py_None &&
1524 !PyObject_TypeCheck(aad,
1525 (PyTypeObject *)GCAEADENC_KEY(me->ob_type)->aad))
1526 TYERR("wanted aad");
1527 if ((gd->f&AEADF_AADNDEP) && aad != Py_None && aad != (PyObject *)gd->aad)
1528 VALERR("mismatched aad");
1529 if ((gd->f&AEADF_PCHSZ) &&
1530 (aad == Py_None ? 0 : GAEADAAD_HLEN(aad)) != gd->hsz)
1531 VALERR("header doesn't match precommitted length");
1532 if ((gd->f&AEADF_PCMSZ) && gd->clen != gd->csz)
1533 VALERR("message doesn't match precommitted length");
1534 if ((gd->f&AEADF_PCTSZ) && tsz != gd->tsz)
1535 VALERR("tag length doesn't match precommitted value");
1536 if (keysz(tsz, gd->d->ops->c->tagsz) != tsz) VALERR("bad tag length");
1537 msz = gd->d->ops->c->bufsz; m = xmalloc(msz); buf_init(&b, m, msz);
1538 err = GAEAD_DONE(gd->d, aad == Py_None ? 0 : GAEADAAD_A(aad), &b, t, tsz);
1539 assert(err >= 0);
1540 if (!err) VALERR("decryption failed");
1541 buf_flip(&b); rc = bytestring_pywrapbuf(&b);
1542end:
1543 xfree(m);
1544 return (rc);
1545}
1546
c90f712e 1547static const PyMethodDef gaeaddec_pymethods[] = {
bebf03ab 1548#define METHNAME(name) gaedmeth_##name
91e56f06 1549 NAMETH(aad, "DEC.aad() -> AAD")
d96c882e
MW		 1550 KWMETH(reinit, "DEC.reinit(NONCE, [hsz], [csz], [tsz])")
1551 METH (decrypt, "DEC.decrypt(CT) -> MSG")
1552 KWMETH(done, "DEC.done(TAG, [aad]) -> MSG | None")
bebf03ab
MW		 1553#undef METHNAME
1554 { 0 }
1555};
1556
1557static PyTypeObject gcaead_pytype_skel = {
1558 PyObject_HEAD_INIT(0) 0, /* Header */
1559 "GCAEAD", /* @tp_name@ */
1560 sizeof(gcaead_pyobj), /* @tp_basicsize@ */
1561 0, /* @tp_itemsize@ */
1562
1563 0, /* @tp_dealloc@ */
1564 0, /* @tp_print@ */
1565 0, /* @tp_getattr@ */
1566 0, /* @tp_setattr@ */
1567 0, /* @tp_compare@ */
1568 0, /* @tp_repr@ */
1569 0, /* @tp_as_number@ */
1570 0, /* @tp_as_sequence@ */
1571 0, /* @tp_as_mapping@ */
1572 0, /* @tp_hash@ */
1573 0, /* @tp_call@ */
1574 0, /* @tp_str@ */
1575 0, /* @tp_getattro@ */
1576 0, /* @tp_setattro@ */
1577 0, /* @tp_as_buffer@ */
1578 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1579 Py_TPFLAGS_BASETYPE,
1580
1581 /* @tp_doc@ */
d96c882e 1582 "Authenticated encryption (key) metaclass.",
bebf03ab
MW		 1583
1584 0, /* @tp_traverse@ */
1585 0, /* @tp_clear@ */
1586 0, /* @tp_richcompare@ */
1587 0, /* @tp_weaklistoffset@ */
1588 0, /* @tp_iter@ */
1589 0, /* @tp_iternext@ */
1590 0, /* @tp_methods@ */
1591 0, /* @tp_members@ */
c90f712e 1592 PYGETSET(gcaead), /* @tp_getset@ */
bebf03ab
MW		 1593 0, /* @tp_base@ */
1594 0, /* @tp_dict@ */
1595 0, /* @tp_descr_get@ */
1596 0, /* @tp_descr_set@ */
1597 0, /* @tp_dictoffset@ */
1598 0, /* @tp_init@ */
1599 PyType_GenericAlloc, /* @tp_alloc@ */
1600 abstract_pynew, /* @tp_new@ */
1601 0, /* @tp_free@ */
1602 0 /* @tp_is_gc@ */
1603};
1604
1605static PyTypeObject gaeadkey_pytype_skel = {
1606 PyObject_HEAD_INIT(0) 0, /* Header */
1607 "GAEKey", /* @tp_name@ */
1608 sizeof(gaeadkey_pyobj), /* @tp_basicsize@ */
1609 0, /* @tp_itemsize@ */
1610
1611 gaeadkey_pydealloc, /* @tp_dealloc@ */
1612 0, /* @tp_print@ */
1613 0, /* @tp_getattr@ */
1614 0, /* @tp_setattr@ */
1615 0, /* @tp_compare@ */
1616 0, /* @tp_repr@ */
1617 0, /* @tp_as_number@ */
1618 0, /* @tp_as_sequence@ */
1619 0, /* @tp_as_mapping@ */
1620 0, /* @tp_hash@ */
1621 0, /* @tp_call@ */
1622 0, /* @tp_str@ */
1623 0, /* @tp_getattro@ */
1624 0, /* @tp_setattro@ */
1625 0, /* @tp_as_buffer@ */
1626 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1627 Py_TPFLAGS_BASETYPE,
1628
1629 /* @tp_doc@ */
d96c882e 1630 "Authenticated encryption key.",
bebf03ab
MW		 1631
1632 0, /* @tp_traverse@ */
1633 0, /* @tp_clear@ */
1634 0, /* @tp_richcompare@ */
1635 0, /* @tp_weaklistoffset@ */
1636 0, /* @tp_iter@ */
1637 0, /* @tp_iternext@ */
c90f712e 1638 PYMETHODS(gaeadkey), /* @tp_methods@ */
bebf03ab
MW		 1639 0, /* @tp_members@ */
1640 0, /* @tp_getset@ */
1641 0, /* @tp_base@ */
1642 0, /* @tp_dict@ */
1643 0, /* @tp_descr_get@ */
1644 0, /* @tp_descr_set@ */
1645 0, /* @tp_dictoffset@ */
1646 0, /* @tp_init@ */
1647 PyType_GenericAlloc, /* @tp_alloc@ */
1648 abstract_pynew, /* @tp_new@ */
1649 0, /* @tp_free@ */
1650 0 /* @tp_is_gc@ */
1651};
1652
1653static PyTypeObject gcaeadaad_pytype_skel = {
1654 PyObject_HEAD_INIT(0) 0, /* Header */
1655 "GAEAADClass", /* @tp_name@ */
1656 sizeof(gcaeadaad_pyobj), /* @tp_basicsize@ */
1657 0, /* @tp_itemsize@ */
1658
1659 0, /* @tp_dealloc@ */
1660 0, /* @tp_print@ */
1661 0, /* @tp_getattr@ */
1662 0, /* @tp_setattr@ */
1663 0, /* @tp_compare@ */
1664 0, /* @tp_repr@ */
1665 0, /* @tp_as_number@ */
1666 0, /* @tp_as_sequence@ */
1667 0, /* @tp_as_mapping@ */
1668 0, /* @tp_hash@ */
1669 0, /* @tp_call@ */
1670 0, /* @tp_str@ */
1671 0, /* @tp_getattro@ */
1672 0, /* @tp_setattro@ */
1673 0, /* @tp_as_buffer@ */
1674 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1675 Py_TPFLAGS_BASETYPE,
1676
1677 /* @tp_doc@ */
d96c882e 1678 "Authenticated encryption additional-data hash metaclass.",
bebf03ab
MW		 1679
1680 0, /* @tp_traverse@ */
1681 0, /* @tp_clear@ */
1682 0, /* @tp_richcompare@ */
1683 0, /* @tp_weaklistoffset@ */
1684 0, /* @tp_iter@ */
1685 0, /* @tp_iternext@ */
1686 0, /* @tp_methods@ */
1687 0, /* @tp_members@ */
1688 0, /* @tp_getset@ */
1689 0, /* @tp_base@ */
1690 0, /* @tp_dict@ */
1691 0, /* @tp_descr_get@ */
1692 0, /* @tp_descr_set@ */
1693 0, /* @tp_dictoffset@ */
1694 0, /* @tp_init@ */
1695 PyType_GenericAlloc, /* @tp_alloc@ */
1696 abstract_pynew, /* @tp_new@ */
1697 0, /* @tp_free@ */
1698 0 /* @tp_is_gc@ */
1699};
1700
1701static PyTypeObject gaeadaad_pytype_skel = {
1702 PyObject_HEAD_INIT(0) 0, /* Header */
1703 "GAEAAD", /* @tp_name@ */
1704 sizeof(gaeadaad_pyobj), /* @tp_basicsize@ */
1705 0, /* @tp_itemsize@ */
1706
1707 gaeadaad_pydealloc, /* @tp_dealloc@ */
1708 0, /* @tp_print@ */
1709 0, /* @tp_getattr@ */
1710 0, /* @tp_setattr@ */
1711 0, /* @tp_compare@ */
1712 0, /* @tp_repr@ */
1713 0, /* @tp_as_number@ */
1714 0, /* @tp_as_sequence@ */
1715 0, /* @tp_as_mapping@ */
1716 0, /* @tp_hash@ */
1717 0, /* @tp_call@ */
1718 0, /* @tp_str@ */
1719 0, /* @tp_getattro@ */
1720 0, /* @tp_setattro@ */
1721 0, /* @tp_as_buffer@ */
1722 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1723 Py_TPFLAGS_BASETYPE,
1724
1725 /* @tp_doc@ */
d96c882e 1726 "Authenticated encryption AAD hash.",
bebf03ab
MW		 1727
1728 0, /* @tp_traverse@ */
1729 0, /* @tp_clear@ */
1730 0, /* @tp_richcompare@ */
1731 0, /* @tp_weaklistoffset@ */
1732 0, /* @tp_iter@ */
1733 0, /* @tp_iternext@ */
c90f712e 1734 PYMETHODS(gaeadaad), /* @tp_methods@ */
bebf03ab 1735 0, /* @tp_members@ */
c90f712e 1736 PYGETSET(gaeadaad), /* @tp_getset@ */
bebf03ab
MW		 1737 0, /* @tp_base@ */
1738 0, /* @tp_dict@ */
1739 0, /* @tp_descr_get@ */
1740 0, /* @tp_descr_set@ */
1741 0, /* @tp_dictoffset@ */
1742 0, /* @tp_init@ */
1743 PyType_GenericAlloc, /* @tp_alloc@ */
1744 abstract_pynew, /* @tp_new@ */
1745 0, /* @tp_free@ */
1746 0 /* @tp_is_gc@ */
1747};
1748
1749static PyTypeObject gcaeadenc_pytype_skel = {
1750 PyObject_HEAD_INIT(0) 0, /* Header */
1751 "GAEEncClass", /* @tp_name@ */
1752 sizeof(gcaeadenc_pyobj), /* @tp_basicsize@ */
1753 0, /* @tp_itemsize@ */
1754
1755 0, /* @tp_dealloc@ */
1756 0, /* @tp_print@ */
1757 0, /* @tp_getattr@ */
1758 0, /* @tp_setattr@ */
1759 0, /* @tp_compare@ */
1760 0, /* @tp_repr@ */
1761 0, /* @tp_as_number@ */
1762 0, /* @tp_as_sequence@ */
1763 0, /* @tp_as_mapping@ */
1764 0, /* @tp_hash@ */
1765 0, /* @tp_call@ */
1766 0, /* @tp_str@ */
1767 0, /* @tp_getattro@ */
1768 0, /* @tp_setattro@ */
1769 0, /* @tp_as_buffer@ */
1770 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1771 Py_TPFLAGS_BASETYPE,
1772
1773 /* @tp_doc@ */
d96c882e 1774 "Authenticated encryption operation metaclass.",
bebf03ab
MW		 1775
1776 0, /* @tp_traverse@ */
1777 0, /* @tp_clear@ */
1778 0, /* @tp_richcompare@ */
1779 0, /* @tp_weaklistoffset@ */
1780 0, /* @tp_iter@ */
1781 0, /* @tp_iternext@ */
1782 0, /* @tp_methods@ */
1783 0, /* @tp_members@ */
1784 0, /* @tp_getset@ */
1785 0, /* @tp_base@ */
1786 0, /* @tp_dict@ */
1787 0, /* @tp_descr_get@ */
1788 0, /* @tp_descr_set@ */
1789 0, /* @tp_dictoffset@ */
1790 0, /* @tp_init@ */
1791 PyType_GenericAlloc, /* @tp_alloc@ */
1792 abstract_pynew, /* @tp_new@ */
1793 0, /* @tp_free@ */
1794 0 /* @tp_is_gc@ */
1795};
1796
1797static PyTypeObject gaeadenc_pytype_skel = {
1798 PyObject_HEAD_INIT(0) 0, /* Header */
1799 "GAEEnc", /* @tp_name@ */
1800 sizeof(gaeadenc_pyobj), /* @tp_basicsize@ */
1801 0, /* @tp_itemsize@ */
1802
1803 gaeadenc_pydealloc, /* @tp_dealloc@ */
1804 0, /* @tp_print@ */
1805 0, /* @tp_getattr@ */
1806 0, /* @tp_setattr@ */
1807 0, /* @tp_compare@ */
1808 0, /* @tp_repr@ */
1809 0, /* @tp_as_number@ */
1810 0, /* @tp_as_sequence@ */
1811 0, /* @tp_as_mapping@ */
1812 0, /* @tp_hash@ */
1813 0, /* @tp_call@ */
1814 0, /* @tp_str@ */
1815 0, /* @tp_getattro@ */
1816 0, /* @tp_setattro@ */
1817 0, /* @tp_as_buffer@ */
1818 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1819 Py_TPFLAGS_BASETYPE,
1820
1821 /* @tp_doc@ */
d96c882e 1822 "Authenticated encryption operation.",
bebf03ab
MW		 1823
1824 0, /* @tp_traverse@ */
1825 0, /* @tp_clear@ */
1826 0, /* @tp_richcompare@ */
1827 0, /* @tp_weaklistoffset@ */
1828 0, /* @tp_iter@ */
1829 0, /* @tp_iternext@ */
c90f712e 1830 PYMETHODS(gaeadenc), /* @tp_methods@ */
bebf03ab 1831 0, /* @tp_members@ */
c90f712e 1832 PYGETSET(gaeadenc), /* @tp_getset@ */
bebf03ab
MW		 1833 0, /* @tp_base@ */
1834 0, /* @tp_dict@ */
1835 0, /* @tp_descr_get@ */
1836 0, /* @tp_descr_set@ */
1837 0, /* @tp_dictoffset@ */
1838 0, /* @tp_init@ */
1839 PyType_GenericAlloc, /* @tp_alloc@ */
1840 abstract_pynew, /* @tp_new@ */
1841 0, /* @tp_free@ */
1842 0 /* @tp_is_gc@ */
1843};
1844
1845static PyTypeObject gcaeaddec_pytype_skel = {
1846 PyObject_HEAD_INIT(0) 0, /* Header */
1847 "GAEDecClass", /* @tp_name@ */
1848 sizeof(gcaeaddec_pyobj), /* @tp_basicsize@ */
1849 0, /* @tp_itemsize@ */
1850
1851 0, /* @tp_dealloc@ */
1852 0, /* @tp_print@ */
1853 0, /* @tp_getattr@ */
1854 0, /* @tp_setattr@ */
1855 0, /* @tp_compare@ */
1856 0, /* @tp_repr@ */
1857 0, /* @tp_as_number@ */
1858 0, /* @tp_as_sequence@ */
1859 0, /* @tp_as_mapping@ */
1860 0, /* @tp_hash@ */
1861 0, /* @tp_call@ */
1862 0, /* @tp_str@ */
1863 0, /* @tp_getattro@ */
1864 0, /* @tp_setattro@ */
1865 0, /* @tp_as_buffer@ */
1866 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1867 Py_TPFLAGS_BASETYPE,
1868
1869 /* @tp_doc@ */
d96c882e 1870 "Authenticated decryption operation metaclass.",
bebf03ab
MW		 1871
1872 0, /* @tp_traverse@ */
1873 0, /* @tp_clear@ */
1874 0, /* @tp_richcompare@ */
1875 0, /* @tp_weaklistoffset@ */
1876 0, /* @tp_iter@ */
1877 0, /* @tp_iternext@ */
1878 0, /* @tp_methods@ */
1879 0, /* @tp_members@ */
1880 0, /* @tp_getset@ */
1881 0, /* @tp_base@ */
1882 0, /* @tp_dict@ */
1883 0, /* @tp_descr_get@ */
1884 0, /* @tp_descr_set@ */
1885 0, /* @tp_dictoffset@ */
1886 0, /* @tp_init@ */
1887 PyType_GenericAlloc, /* @tp_alloc@ */
1888 abstract_pynew, /* @tp_new@ */
1889 0, /* @tp_free@ */
1890 0 /* @tp_is_gc@ */
1891};
1892
1893static PyTypeObject gaeaddec_pytype_skel = {
1894 PyObject_HEAD_INIT(0) 0, /* Header */
1895 "GAEDec", /* @tp_name@ */
1896 sizeof(gaeaddec_pyobj), /* @tp_basicsize@ */
1897 0, /* @tp_itemsize@ */
1898
1899 gaeaddec_pydealloc, /* @tp_dealloc@ */
1900 0, /* @tp_print@ */
1901 0, /* @tp_getattr@ */
1902 0, /* @tp_setattr@ */
1903 0, /* @tp_compare@ */
1904 0, /* @tp_repr@ */
1905 0, /* @tp_as_number@ */
1906 0, /* @tp_as_sequence@ */
1907 0, /* @tp_as_mapping@ */
1908 0, /* @tp_hash@ */
1909 0, /* @tp_call@ */
1910 0, /* @tp_str@ */
1911 0, /* @tp_getattro@ */
1912 0, /* @tp_setattro@ */
1913 0, /* @tp_as_buffer@ */
1914 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1915 Py_TPFLAGS_BASETYPE,
1916
1917 /* @tp_doc@ */
d96c882e 1918 "Authenticated decryption operation.",
bebf03ab
MW		 1919
1920 0, /* @tp_traverse@ */
1921 0, /* @tp_clear@ */
1922 0, /* @tp_richcompare@ */
1923 0, /* @tp_weaklistoffset@ */
1924 0, /* @tp_iter@ */
1925 0, /* @tp_iternext@ */
c90f712e 1926 PYMETHODS(gaeaddec), /* @tp_methods@ */
bebf03ab 1927 0, /* @tp_members@ */
c90f712e 1928 PYGETSET(gaeaddec), /* @tp_getset@ */
bebf03ab
MW		 1929 0, /* @tp_base@ */
1930 0, /* @tp_dict@ */
1931 0, /* @tp_descr_get@ */
1932 0, /* @tp_descr_set@ */
1933 0, /* @tp_dictoffset@ */
1934 0, /* @tp_init@ */
1935 PyType_GenericAlloc, /* @tp_alloc@ */
1936 abstract_pynew, /* @tp_new@ */
1937 0, /* @tp_free@ */
1938 0 /* @tp_is_gc@ */
1939};
1940
d7ab1bab 1941/*----- Hash functions ----------------------------------------------------*/
1942
c6e89d48
MW		 1943PyTypeObject *gchash_pytype;
1944static PyTypeObject *ghash_pytype;
1945PyObject *sha_pyobj, *has160_pyobj;
1946
1947typedef struct ghash_pyobj {
1948 PyObject_HEAD
1949 ghash *h;
1950} ghash_pyobj;
1951
1952#define GHASH_PYCHECK(o) PyObject_TypeCheck((o), ghash_pytype)
1953#define GHASH_H(o) (((ghash_pyobj *)(o))->h)
d7ab1bab 1954
1955CONVFUNC(gchash, gchash *, GCHASH_CH)
1956CONVFUNC(ghash, ghash *, GHASH_H)
1957
1958static PyObject *ghash_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
1959{
827f89d7
MW		 1960 static const char *const kwlist[] = { 0 };
1961 if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", KWLIST))
d7ab1bab 1962 goto end;
c41d0371 1963 return (ghash_pywrap((PyObject *)ty, GH_INIT(GCHASH_CH(ty))));
d7ab1bab 1964end:
b2687a0a 1965 return (0);
d7ab1bab 1966}
1967
c6e89d48 1968static PyObject *gchash_pywrap(gchash *ch)
d7ab1bab 1969{
df9f8366 1970 gchash_pyobj *g = newtype(gchash_pytype, 0, ch->name);
d7ab1bab 1971 g->ch = ch;
24b3d57b
MW		 1972 g->ty.ht_type.tp_basicsize = sizeof(ghash_pyobj);
1973 g->ty.ht_type.tp_base = ghash_pytype;
d7ab1bab 1974 Py_INCREF(ghash_pytype);
24b3d57b
MW		 1975 g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT |
1976 Py_TPFLAGS_BASETYPE |
1977 Py_TPFLAGS_HEAPTYPE);
1978 g->ty.ht_type.tp_alloc = PyType_GenericAlloc;
1979 g->ty.ht_type.tp_free = 0;
1980 g->ty.ht_type.tp_new = ghash_pynew;
dc075750 1981 typeready(&g->ty.ht_type);
d7ab1bab 1982 return ((PyObject *)g);
1983}
1984
c41d0371 1985PyObject *ghash_pywrap(PyObject *cobj, ghash *h)
d7ab1bab 1986{
1987 ghash_pyobj *g;
1988 if (!cobj) cobj = gchash_pywrap((/*unconst*/ gchash *)GH_CLASS(h));
1989 else Py_INCREF(cobj);
1990 g = PyObject_NEW(ghash_pyobj, (PyTypeObject *)cobj);
1991 g->h = h;
b2687a0a 1992 return ((PyObject *)g);
d7ab1bab 1993}
1994
1995static void ghash_pydealloc(PyObject *me)
1996{
c41d0371 1997 GH_DESTROY(GHASH_H(me));
d7ab1bab 1998 Py_DECREF(me->ob_type);
3aa33042 1999 FREEOBJ(me);
d7ab1bab 2000}
2001
2002static PyObject *gchget_name(PyObject *me, void *hunoz)
2003 { return (PyString_FromString(GCHASH_CH(me)->name)); }
2004
2005static PyObject *gchget_hashsz(PyObject *me, void *hunoz)
2006 { return (PyInt_FromLong(GCHASH_CH(me)->hashsz)); }
2007
2008static PyObject *gchget_bufsz(PyObject *me, void *hunoz)
2009 { return (PyInt_FromLong(GCHASH_CH(me)->bufsz)); }
2010
91e56f06
MW		 2011static PyObject *ghmeth_copy(PyObject *me)
2012 { return (ghash_pywrap((PyObject *)me->ob_type, GH_COPY(GHASH_H(me)))); }
cfe80e51 2013
d7ab1bab 2014static PyObject *ghmeth_hash(PyObject *me, PyObject *arg)
2015{
2016 char *p;
6b54260d 2017 Py_ssize_t sz;
d7ab1bab 2018 if (!PyArg_ParseTuple(arg, "s#:hash", &p, &sz)) return (0);
2019 GH_HASH(GHASH_H(me), p, sz);
2020 RETURN_ME;
2021}
2022
46e6ad89 2023#define GHMETH_HASHU_(n, W, w) \
2024 static PyObject *ghmeth_hashu##w(PyObject *me, PyObject *arg) \
2025 { \
2026 uint##n x; \
0e5c668c 2027 if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) return (0); \
46e6ad89 2028 GH_HASHU##W(GHASH_H(me), x); \
2029 RETURN_ME; \
46e6ad89 2030 }
2031DOUINTCONV(GHMETH_HASHU_)
2032
2033#define GHMETH_HASHBUF_(n, W, w) \
2034 static PyObject *ghmeth_hashbuf##w(PyObject *me, PyObject *arg) \
2035 { \
2036 char *p; \
6b54260d 2037 Py_ssize_t sz; \
46e6ad89 2038 if (!PyArg_ParseTuple(arg, "s#:hashbuf" #w, &p, &sz)) goto end; \
2039 if (sz > MASK##n) TYERR("string too long"); \
2040 GH_HASHBUF##W(GHASH_H(me), p, sz); \
2041 RETURN_ME; \
2042 end: \
2043 return (0); \
2044 }
2045DOUINTCONV(GHMETH_HASHBUF_)
2046
2047static PyObject *ghmeth_hashstrz(PyObject *me, PyObject *arg)
2048{
2049 char *p;
2050 if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0);
2051 GH_HASHSTRZ(GHASH_H(me), p);
2052 RETURN_ME;
2053}
2054
91e56f06 2055static PyObject *ghmeth_done(PyObject *me)
07bcd768
MW		 2056{
2057 ghash *g;
2058 PyObject *rc;
07bcd768
MW		 2059 g = GH_COPY(GHASH_H(me));
2060 rc = bytestring_pywrap(0, g->ops->c->hashsz);
2061 GH_DONE(g, PyString_AS_STRING(rc));
2062 GH_DESTROY(g);
2063 return (rc);
2064}
2065
c90f712e 2066static const PyGetSetDef gchash_pygetset[] = {
07bcd768 2067#define GETSETNAME(op, name) gch##op##_##name
d96c882e
MW		 2068 GET (bufsz, "CH.bufsz -> hash buffer size, or zero")
2069 GET (hashsz, "CH.hashsz -> hash output size")
2070 GET (name, "CH.name -> name of this kind of hash")
07bcd768
MW		 2071#undef GETSETNAME
2072 { 0 }
2073};
2074
c90f712e 2075static const PyMethodDef ghash_pymethods[] = {
d7ab1bab 2076#define METHNAME(name) ghmeth_##name
91e56f06 2077 NAMETH(copy, "H.copy() -> HH")
d96c882e 2078 METH (hash, "H.hash(M)")
46e6ad89 2079#define METHU_(n, W, w) METH(hashu##w, "H.hashu" #w "(WORD)")
2080 DOUINTCONV(METHU_)
07bcd768 2081#undef METHU_
46e6ad89 2082#define METHBUF_(n, W, w) METH(hashbuf##w, "H.hashbuf" #w "(BYTES)")
2083 DOUINTCONV(METHBUF_)
07bcd768 2084#undef METHBUF_
d96c882e 2085 METH (hashstrz, "H.hashstrz(STRING)")
91e56f06 2086 NAMETH(done, "H.done() -> HASH")
d7ab1bab 2087#undef METHNAME
2088 { 0 }
2089};
2090
2091static PyTypeObject gchash_pytype_skel = {
6d4db0bf 2092 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 2093 "GCHash", /* @tp_name@ */
d7ab1bab 2094 sizeof(gchash_pyobj), /* @tp_basicsize@ */
2095 0, /* @tp_itemsize@ */
2096
2097 0, /* @tp_dealloc@ */
2098 0, /* @tp_print@ */
2099 0, /* @tp_getattr@ */
2100 0, /* @tp_setattr@ */
2101 0, /* @tp_compare@ */
2102 0, /* @tp_repr@ */
2103 0, /* @tp_as_number@ */
2104 0, /* @tp_as_sequence@ */
2105 0, /* @tp_as_mapping@ */
2106 0, /* @tp_hash@ */
2107 0, /* @tp_call@ */
2108 0, /* @tp_str@ */
2109 0, /* @tp_getattro@ */
2110 0, /* @tp_setattro@ */
2111 0, /* @tp_as_buffer@ */
2112 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
2113 Py_TPFLAGS_BASETYPE,
2114
2115 /* @tp_doc@ */
d96c882e 2116 "Hash function metaclass.",
d7ab1bab 2117
2118 0, /* @tp_traverse@ */
2119 0, /* @tp_clear@ */
2120 0, /* @tp_richcompare@ */
2121 0, /* @tp_weaklistoffset@ */
2122 0, /* @tp_iter@ */
963a6148 2123 0, /* @tp_iternext@ */
d7ab1bab 2124 0, /* @tp_methods@ */
2125 0, /* @tp_members@ */
c90f712e 2126 PYGETSET(gchash), /* @tp_getset@ */
d7ab1bab 2127 0, /* @tp_base@ */
2128 0, /* @tp_dict@ */
2129 0, /* @tp_descr_get@ */
2130 0, /* @tp_descr_set@ */
2131 0, /* @tp_dictoffset@ */
2132 0, /* @tp_init@ */
2133 PyType_GenericAlloc, /* @tp_alloc@ */
2134 abstract_pynew, /* @tp_new@ */
3aa33042 2135 0, /* @tp_free@ */
d7ab1bab 2136 0 /* @tp_is_gc@ */
2137};
2138
2139static PyTypeObject ghash_pytype_skel = {
6d4db0bf 2140 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 2141 "GHash", /* @tp_name@ */
d7ab1bab 2142 sizeof(ghash_pyobj), /* @tp_basicsize@ */
2143 0, /* @tp_itemsize@ */
2144
2145 ghash_pydealloc, /* @tp_dealloc@ */
2146 0, /* @tp_print@ */
2147 0, /* @tp_getattr@ */
2148 0, /* @tp_setattr@ */
2149 0, /* @tp_compare@ */
2150 0, /* @tp_repr@ */
2151 0, /* @tp_as_number@ */
2152 0, /* @tp_as_sequence@ */
2153 0, /* @tp_as_mapping@ */
2154 0, /* @tp_hash@ */
2155 0, /* @tp_call@ */
2156 0, /* @tp_str@ */
2157 0, /* @tp_getattro@ */
2158 0, /* @tp_setattro@ */
2159 0, /* @tp_as_buffer@ */
2160 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
2161 Py_TPFLAGS_BASETYPE,
2162
2163 /* @tp_doc@ */
d96c882e 2164 "Hash function, abstract base class.",
d7ab1bab 2165
2166 0, /* @tp_traverse@ */
2167 0, /* @tp_clear@ */
2168 0, /* @tp_richcompare@ */
2169 0, /* @tp_weaklistoffset@ */
2170 0, /* @tp_iter@ */
963a6148 2171 0, /* @tp_iternext@ */
c90f712e 2172 PYMETHODS(ghash), /* @tp_methods@ */
d7ab1bab 2173 0, /* @tp_members@ */
2174 0, /* @tp_getset@ */
2175 0, /* @tp_base@ */
2176 0, /* @tp_dict@ */
2177 0, /* @tp_descr_get@ */
2178 0, /* @tp_descr_set@ */
2179 0, /* @tp_dictoffset@ */
2180 0, /* @tp_init@ */
2181 PyType_GenericAlloc, /* @tp_alloc@ */
2182 abstract_pynew, /* @tp_new@ */
3aa33042 2183 0, /* @tp_free@ */
d7ab1bab 2184 0 /* @tp_is_gc@ */
2185};
2186
2187/*----- Message authentication --------------------------------------------*/
2188
c6e89d48 2189static PyTypeObject *gcmac_pytype, *gmac_pytype, *gmhash_pytype;
d7ab1bab 2190
c6e89d48
MW		 2191typedef struct gcmac_pyobj {
2192 PyHeapTypeObject ty;
2193 gcmac *cm;
2194} gcmac_pyobj;
2195
2196#define GCMAC_PYCHECK(o) PyObject_TypeCheck((o), gcmac_pytype)
2197#define GCMAC_CM(o) (((gcmac_pyobj *)(o))->cm)
2198#define GCMAC_F(o) (((gcmac_pyobj *)(o))->f)
d7ab1bab 2199CONVFUNC(gcmac, gcmac *, GCMAC_CM)
c6e89d48
MW		 2200static PyObject *gmac_pywrap(PyObject *, gmac *);
2201
2202typedef struct gmac_pyobj {
2203 PyHeapTypeObject ty;
2204 gmac *m;
2205} gmac_pyobj;
2206
2207extern PyTypeObject *gmac_pytype;
2208#define GMAC_PYCHECK(o) PyObject_TypeCheck((o), gmac_pytype)
2209#define GMAC_M(o) (((gmac_pyobj *)(o))->m)
2210#define GMAC_F(o) (((gmac_pyobj *)(o))->f)
2211extern PyObject *gmac_pywrap(PyObject *, gmac *);
2212extern int convgmac(PyObject *, void *);
d7ab1bab 2213
2214static PyObject *gmac_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
2215{
827f89d7 2216 static const char *const kwlist[] = { "k", 0 };
d7ab1bab 2217 char *k;
6b54260d 2218 Py_ssize_t sz;
d7ab1bab 2219
827f89d7 2220 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", KWLIST, &k, &sz))
d7ab1bab 2221 goto end;
2222 if (keysz(sz, GCMAC_CM(ty)->keysz) != sz) VALERR("bad key length");
2223 return (gmac_pywrap((PyObject *)ty,
c41d0371 2224 GM_KEY(GCMAC_CM(ty), k, sz)));
d7ab1bab 2225end:
b2687a0a 2226 return (0);
d7ab1bab 2227}
2228
2229static PyObject *gmhash_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
2230{
827f89d7 2231 static const char *const kwlist[] = { 0 };
d7ab1bab 2232 ghash_pyobj *g;
2233
827f89d7 2234 if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", KWLIST)) return (0);
d7ab1bab 2235 g = PyObject_NEW(ghash_pyobj, ty);
2236 g->h = GM_INIT(GMAC_M(ty));
d7ab1bab 2237 Py_INCREF(ty);
2238 return ((PyObject *)g);
2239}
2240
c6e89d48 2241static PyObject *gcmac_pywrap(gcmac *cm)
d7ab1bab 2242{
df9f8366 2243 gcmac_pyobj *g = newtype(gcmac_pytype, 0, cm->name);
d7ab1bab 2244 g->cm = cm;
24b3d57b
MW		 2245 g->ty.ht_type.tp_basicsize = sizeof(gmac_pyobj);
2246 g->ty.ht_type.tp_base = gmac_pytype;
d7ab1bab 2247 Py_INCREF(gmac_pytype);
24b3d57b
MW		 2248 g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT |
2249 Py_TPFLAGS_BASETYPE |
2250 Py_TPFLAGS_HEAPTYPE);
2251 g->ty.ht_type.tp_alloc = PyType_GenericAlloc;
2252 g->ty.ht_type.tp_free = 0;
2253 g->ty.ht_type.tp_new = gmac_pynew;
dc075750 2254 typeready(&g->ty.ht_type);
d7ab1bab 2255 return ((PyObject *)g);
2256}
2257
c6e89d48 2258static PyObject *gmac_pywrap(PyObject *cobj, gmac *m)
d7ab1bab 2259{
2260 gmac_pyobj *g;
2261 if (!cobj) cobj = gcmac_pywrap((/*unconst*/ gcmac *)GM_CLASS(m));
2262 else Py_INCREF(cobj);
df9f8366 2263 g = newtype((PyTypeObject *)cobj, 0, 0);
828b1388 2264 g->ty.ht_type.tp_basicsize = sizeof(ghash_pyobj);
24b3d57b
MW		 2265 g->ty.ht_name = PyString_FromFormat("%s(keyed)", m->ops->c->name);
2266 g->ty.ht_type.tp_name = PyString_AS_STRING(g->ty.ht_name);
2267 g->ty.ht_type.tp_base = gmhash_pytype;
d7ab1bab 2268 Py_INCREF(gmac_pytype);
24b3d57b
MW		 2269 g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT |
2270 Py_TPFLAGS_BASETYPE |
2271 Py_TPFLAGS_HEAPTYPE);
2272 g->ty.ht_type.tp_alloc = PyType_GenericAlloc;
2273 g->ty.ht_type.tp_free = 0;
2274 g->ty.ht_type.tp_new = gmhash_pynew;
dc075750 2275 typeready(&g->ty.ht_type);
d7ab1bab 2276 g->m = m;
b2687a0a 2277 return ((PyObject *)g);
d7ab1bab 2278}
2279
2280static void gmac_pydealloc(PyObject *me)
2281{
c41d0371 2282 GM_DESTROY(GMAC_M(me));
d7ab1bab 2283 Py_DECREF(me->ob_type);
d7ab1bab 2284 PyType_Type.tp_dealloc(me);
2285}
2286
2287static PyObject *gcmget_name(PyObject *me, void *hunoz)
2288 { return (PyString_FromString(GCMAC_CM(me)->name)); }
2289
2290static PyObject *gcmget_keysz(PyObject *me, void *hunoz)
2291 { return (keysz_pywrap(GCMAC_CM(me)->keysz)); }
2292
2293static PyObject *gcmget_tagsz(PyObject *me, void *hunoz)
2294 { return (PyInt_FromLong(GCMAC_CM(me)->hashsz)); }
2295
c90f712e 2296static const PyGetSetDef gcmac_pygetset[] = {
d7ab1bab 2297#define GETSETNAME(op, name) gcm##op##_##name
d96c882e
MW		 2298 GET (keysz, "CM.keysz -> acceptable key sizes")
2299 GET (tagsz, "CM.tagsz -> MAC output size")
2300 GET (name, "CM.name -> name of this kind of MAC")
d7ab1bab 2301#undef GETSETNAME
2302 { 0 }
2303};
2304
2305static PyTypeObject gcmac_pytype_skel = {
6d4db0bf 2306 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 2307 "GCMAC", /* @tp_name@ */
d7ab1bab 2308 sizeof(gchash_pyobj), /* @tp_basicsize@ */
2309 0, /* @tp_itemsize@ */
2310
2311 0, /* @tp_dealloc@ */
2312 0, /* @tp_print@ */
2313 0, /* @tp_getattr@ */
2314 0, /* @tp_setattr@ */
2315 0, /* @tp_compare@ */
2316 0, /* @tp_repr@ */
2317 0, /* @tp_as_number@ */
2318 0, /* @tp_as_sequence@ */
2319 0, /* @tp_as_mapping@ */
2320 0, /* @tp_hash@ */
2321 0, /* @tp_call@ */
2322 0, /* @tp_str@ */
2323 0, /* @tp_getattro@ */
2324 0, /* @tp_setattro@ */
2325 0, /* @tp_as_buffer@ */
2326 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
2327 Py_TPFLAGS_BASETYPE,
2328
2329 /* @tp_doc@ */
d96c882e 2330 "Message authentication code metametaclass.",
d7ab1bab 2331
2332 0, /* @tp_traverse@ */
2333 0, /* @tp_clear@ */
2334 0, /* @tp_richcompare@ */
2335 0, /* @tp_weaklistoffset@ */
2336 0, /* @tp_iter@ */
963a6148 2337 0, /* @tp_iternext@ */
d7ab1bab 2338 0, /* @tp_methods@ */
2339 0, /* @tp_members@ */
c90f712e 2340 PYGETSET(gcmac), /* @tp_getset@ */
d7ab1bab 2341 0, /* @tp_base@ */
2342 0, /* @tp_dict@ */
2343 0, /* @tp_descr_get@ */
2344 0, /* @tp_descr_set@ */
2345 0, /* @tp_dictoffset@ */
2346 0, /* @tp_init@ */
2347 PyType_GenericAlloc, /* @tp_alloc@ */
2348 abstract_pynew, /* @tp_new@ */
3aa33042 2349 0, /* @tp_free@ */
d7ab1bab 2350 0 /* @tp_is_gc@ */
2351};
2352
2353static PyTypeObject gmac_pytype_skel = {
6d4db0bf 2354 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 2355 "GMAC", /* @tp_name@ */
d7ab1bab 2356 sizeof(gmac_pyobj), /* @tp_basicsize@ */
2357 0, /* @tp_itemsize@ */
2358
2359 gmac_pydealloc, /* @tp_dealloc@ */
2360 0, /* @tp_print@ */
2361 0, /* @tp_getattr@ */
2362 0, /* @tp_setattr@ */
2363 0, /* @tp_compare@ */
2364 0, /* @tp_repr@ */
2365 0, /* @tp_as_number@ */
2366 0, /* @tp_as_sequence@ */
2367 0, /* @tp_as_mapping@ */
2368 0, /* @tp_hash@ */
2369 0, /* @tp_call@ */
2370 0, /* @tp_str@ */
2371 0, /* @tp_getattro@ */
2372 0, /* @tp_setattro@ */
2373 0, /* @tp_as_buffer@ */
2374 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
2375 Py_TPFLAGS_BASETYPE,
2376
2377 /* @tp_doc@ */
d96c882e 2378 "Message authentication code metaclass, abstract base class.",
d7ab1bab 2379
2380 0, /* @tp_traverse@ */
2381 0, /* @tp_clear@ */
2382 0, /* @tp_richcompare@ */
2383 0, /* @tp_weaklistoffset@ */
2384 0, /* @tp_iter@ */
963a6148 2385 0, /* @tp_iternext@ */
d7ab1bab 2386 0, /* @tp_methods@ */
2387 0, /* @tp_members@ */
2388 0, /* @tp_getset@ */
2389 0, /* @tp_base@ */
2390 0, /* @tp_dict@ */
2391 0, /* @tp_descr_get@ */
2392 0, /* @tp_descr_set@ */
2393 0, /* @tp_dictoffset@ */
2394 0, /* @tp_init@ */
2395 PyType_GenericAlloc, /* @tp_alloc@ */
2396 abstract_pynew, /* @tp_new@ */
3aa33042 2397 0, /* @tp_free@ */
d7ab1bab 2398 0 /* @tp_is_gc@ */
2399};
2400
2401static PyTypeObject gmhash_pytype_skel = {
6d4db0bf 2402 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 2403 "GMACHash", /* @tp_name@ */
d7ab1bab 2404 sizeof(ghash_pyobj), /* @tp_basicsize@ */
2405 0, /* @tp_itemsize@ */
2406
2407 ghash_pydealloc, /* @tp_dealloc@ */
2408 0, /* @tp_print@ */
2409 0, /* @tp_getattr@ */
2410 0, /* @tp_setattr@ */
2411 0, /* @tp_compare@ */
2412 0, /* @tp_repr@ */
2413 0, /* @tp_as_number@ */
2414 0, /* @tp_as_sequence@ */
2415 0, /* @tp_as_mapping@ */
2416 0, /* @tp_hash@ */
2417 0, /* @tp_call@ */
2418 0, /* @tp_str@ */
2419 0, /* @tp_getattro@ */
2420 0, /* @tp_setattro@ */
2421 0, /* @tp_as_buffer@ */
2422 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
2423 Py_TPFLAGS_BASETYPE,
2424
2425 /* @tp_doc@ */
d96c882e 2426 "Message authentication code, abstract base class.",
d7ab1bab 2427
2428 0, /* @tp_traverse@ */
2429 0, /* @tp_clear@ */
2430 0, /* @tp_richcompare@ */
2431 0, /* @tp_weaklistoffset@ */
2432 0, /* @tp_iter@ */
963a6148 2433 0, /* @tp_iternext@ */
d7ab1bab 2434 0, /* @tp_methods@ */
2435 0, /* @tp_members@ */
2436 0, /* @tp_getset@ */
2437 0, /* @tp_base@ */
2438 0, /* @tp_dict@ */
2439 0, /* @tp_descr_get@ */
2440 0, /* @tp_descr_set@ */
2441 0, /* @tp_dictoffset@ */
2442 0, /* @tp_init@ */
2443 PyType_GenericAlloc, /* @tp_alloc@ */
2444 abstract_pynew, /* @tp_new@ */
3aa33042 2445 0, /* @tp_free@ */
d7ab1bab 2446 0 /* @tp_is_gc@ */
2447};
2448
204d480b
MW		 2449/*----- Special snowflake for Poly1305 ------------------------------------*/
2450
2451PyTypeObject *poly1305cls_pytype, *poly1305key_pytype, *poly1305hash_pytype;
2452
2453typedef struct poly1305key_pyobj {
2454 PyHeapTypeObject ty;
2455 poly1305_key k;
2456} poly1305key_pyobj;
2457
2458typedef struct poly1305hash_pyobj {
2459 PyObject_HEAD
2460 unsigned f;
2461#define f_mask 1u
2462 poly1305_ctx ctx;
2463} poly1305hash_pyobj;
2464
2465#define P1305_F(o) (((poly1305hash_pyobj *)(o))->f)
2466#define P1305_CTX(o) (&((poly1305hash_pyobj *)(o))->ctx)
2467CONVFUNC(poly1305hash, poly1305_ctx *, P1305_CTX)
2468
2469static PyObject *poly1305hash_pynew(PyTypeObject *ty,
2470 PyObject *arg, PyObject *kw)
2471{
827f89d7 2472 static const char *const kwlist[] = { "mask", 0 };
204d480b
MW		 2473 poly1305key_pyobj *pk = (poly1305key_pyobj *)ty;
2474 poly1305hash_pyobj *ph;
2475 char *m = 0;
6b54260d 2476 Py_ssize_t sz;
204d480b 2477
827f89d7 2478 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|s#:new", KWLIST, &m, &sz))
204d480b
MW		 2479 return (0);
2480 if (m && sz != POLY1305_MASKSZ) VALERR("bad mask length");
2481 ph = PyObject_NEW(poly1305hash_pyobj, ty);
2482 ph->f = 0;
2483 if (m) ph->f |= f_mask;
2484 poly1305_macinit(&ph->ctx, &pk->k, m);
2485 Py_INCREF(ty);
2486 return ((PyObject *)ph);
2487end:
2488 return (0);
2489}
2490
2491static PyObject *poly1305key_pynew(PyTypeObject *ty,
2492 PyObject *arg, PyObject *kw)
2493{
827f89d7 2494 static const char *const kwlist[] = { "k", 0 };
204d480b
MW		 2495 poly1305key_pyobj *pk;
2496 char *k;
6b54260d 2497 Py_ssize_t sz;
204d480b 2498
827f89d7 2499 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", KWLIST, &k, &sz))
204d480b
MW		 2500 goto end;
2501 if (keysz(sz, poly1305_keysz) != sz) VALERR("bad key length");
2502
2503 pk = newtype(ty, 0, 0);
2504 pk->ty.ht_name = PyString_FromString("poly1305(keyed)");
2505 pk->ty.ht_type.tp_basicsize = sizeof(poly1305hash_pyobj);
2506 pk->ty.ht_type.tp_name = PyString_AS_STRING(pk->ty.ht_name);
2507 pk->ty.ht_type.tp_base = poly1305hash_pytype;
2508 Py_INCREF(poly1305key_pytype);
2509 pk->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT |
2510 Py_TPFLAGS_BASETYPE |
2511 Py_TPFLAGS_HEAPTYPE);
2512 pk->ty.ht_type.tp_alloc = PyType_GenericAlloc;
2513 pk->ty.ht_type.tp_free = 0;
2514 pk->ty.ht_type.tp_new = poly1305hash_pynew;
2515 typeready(&pk->ty.ht_type);
2516
2517 poly1305_keyinit(&pk->k, k, sz);
2518 return ((PyObject *)pk);
2519
2520end:
2521 return (0);
2522}
2523
2524static PyObject *poly1305clsget_name(PyObject *me, void *hunoz)
2525 { return (PyString_FromString("poly1305")); }
2526
2527static PyObject *poly1305clsget_keysz(PyObject *me, void *hunoz)
2528 { return (keysz_pywrap(poly1305_keysz)); }
2529
2530static PyObject *poly1305clsget_masksz(PyObject *me, void *hunoz)
2531 { return (PyInt_FromLong(POLY1305_MASKSZ)); }
2532
2533static PyObject *poly1305clsget_tagsz(PyObject *me, void *hunoz)
2534 { return (PyInt_FromLong(POLY1305_TAGSZ)); }
2535
91e56f06 2536static PyObject *polymeth_copy(PyObject *me)
204d480b
MW		 2537{
2538 poly1305hash_pyobj *ph;
204d480b
MW		 2539 ph = PyObject_NEW(poly1305hash_pyobj, me->ob_type);
2540 poly1305_copy(&ph->ctx, P1305_CTX(me));
2541 Py_INCREF(me->ob_type);
2542 return ((PyObject *)ph);
2543}
2544
2545static PyObject *polymeth_hash(PyObject *me, PyObject *arg)
2546{
2547 char *p;
6b54260d 2548 Py_ssize_t sz;
204d480b
MW		 2549 if (!PyArg_ParseTuple(arg, "s#:hash", &p, &sz)) return (0);
2550 poly1305_hash(P1305_CTX(me), p, sz);
2551 RETURN_ME;
2552}
2553
2554#define POLYMETH_HASHU_(n, W, w) \
2555 static PyObject *polymeth_hashu##w(PyObject *me, PyObject *arg) \
2556 { \
2557 uint##n x; \
2558 octet b[SZ_##W]; \
0e5c668c 2559 if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) return (0); \
0c87e818 2560 STORE##W(b, x); poly1305_hash(P1305_CTX(me), b, sizeof(b)); \
204d480b 2561 RETURN_ME; \
204d480b
MW		 2562 }
2563DOUINTCONV(POLYMETH_HASHU_)
2564
2565#define POLYMETH_HASHBUF_(n, W, w) \
2566 static PyObject *polymeth_hashbuf##w(PyObject *me, PyObject *arg) \
2567 { \
2568 char *p; \
6b54260d 2569 Py_ssize_t sz; \
204d480b
MW		 2570 octet b[SZ_##W]; \
2571 if (!PyArg_ParseTuple(arg, "s#:hashbuf" #w, &p, &sz)) goto end; \
2572 if (sz > MASK##n) TYERR("string too long"); \
0c87e818 2573 STORE##W(b, sz); poly1305_hash(P1305_CTX(me), b, sizeof(b)); \
204d480b
MW		 2574 poly1305_hash(P1305_CTX(me), p, sz); \
2575 RETURN_ME; \
2576 end: \
2577 return (0); \
2578 }
2579DOUINTCONV(POLYMETH_HASHBUF_)
2580
2581static PyObject *polymeth_hashstrz(PyObject *me, PyObject *arg)
2582{
2583 char *p;
2584 if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0);
2585 poly1305_hash(P1305_CTX(me), p, strlen(p) + 1);
2586 RETURN_ME;
2587}
2588
91e56f06
MW		 2589static PyObject *polymeth_flush(PyObject *me)
2590 { poly1305_flush(P1305_CTX(me)); RETURN_ME; }
204d480b 2591
91e56f06
MW		 2592static PyObject *polymeth_flushzero(PyObject *me)
2593 { poly1305_flushzero(P1305_CTX(me)); RETURN_ME; }
5c17375a 2594
204d480b
MW		 2595static PyObject *polymeth_concat(PyObject *me, PyObject *arg)
2596{
2597 PyObject *pre, *suff;
2598 if (!PyArg_ParseTuple(arg, "OO:concat", &pre, &suff)) return (0);
2599 if (!PyObject_TypeCheck(pre, poly1305hash_pytype) ||
2600 !PyObject_TypeCheck(suff, poly1305hash_pytype))
2601 TYERR("wanted a poly1305hash");
2602 if (me->ob_type != pre->ob_type || me->ob_type != suff->ob_type)
2603 TYERR("key mismatch");
2604 if (P1305_CTX(pre)->nbuf) VALERR("prefix is not block-aligned");
2605 poly1305_concat(P1305_CTX(me), P1305_CTX(pre), P1305_CTX(suff));
2606 RETURN_ME;
2607end:
2608 return (0);
2609}
2610
91e56f06 2611static PyObject *polymeth_done(PyObject *me)
204d480b
MW		 2612{
2613 PyObject *rc;
204d480b
MW		 2614 if (!(P1305_F(me) & f_mask)) VALERR("no mask");
2615 rc = bytestring_pywrap(0, POLY1305_TAGSZ);
2616 poly1305_done(P1305_CTX(me), PyString_AS_STRING(rc));
2617 return (rc);
2618end:
2619 return (0);
2620}
2621
c90f712e 2622static const PyGetSetDef poly1305cls_pygetset[] = {
204d480b 2623#define GETSETNAME(op, name) poly1305cls##op##_##name
d96c882e
MW		 2624 GET (keysz, "PC.keysz -> acceptable key sizes")
2625 GET (masksz, "PC.masksz -> mask size")
2626 GET (tagsz, "PC.tagsz -> MAC output size")
2627 GET (name, "PC.name -> name of this kind of MAC")
204d480b
MW		 2628#undef GETSETNAME
2629 { 0 }
2630};
2631
c90f712e 2632static const PyMethodDef poly1305hash_pymethods[] = {
204d480b 2633#define METHNAME(name) polymeth_##name
91e56f06 2634 NAMETH(copy, "P.copy() -> PP")
d96c882e 2635 METH (hash, "P.hash(M)")
204d480b
MW		 2636#define METHU_(n, W, w) METH(hashu##w, "P.hashu" #w "(WORD)")
2637 DOUINTCONV(METHU_)
2638#undef METHU_
2639#define METHBUF_(n, W, w) METH(hashbuf##w, "P.hashbuf" #w "(BYTES)")
2640 DOUINTCONV(METHBUF_)
2641#undef METHBUF_
d96c882e 2642 METH (hashstrz, "P.hashstrz(STRING)")
91e56f06
MW		 2643 NAMETH(flush, "P.flush()")
2644 NAMETH(flushzero, "P.flushzero()")
d96c882e 2645 METH (concat, "P.concat(PREFIX, SUFFIX)")
91e56f06 2646 NAMETH(done, "P.done() -> TAG")
204d480b
MW		 2647#undef METHNAME
2648 { 0 }
2649};
2650
2651static PyTypeObject poly1305cls_pytype_skel = {
2652 PyObject_HEAD_INIT(0) 0, /* Header */
2653 "Poly1305Class", /* @tp_name@ */
2654 sizeof(PyHeapTypeObject), /* @tp_basicsize@ */
2655 0, /* @tp_itemsize@ */
2656
2657 0, /* @tp_dealloc@ */
2658 0, /* @tp_print@ */
2659 0, /* @tp_getattr@ */
2660 0, /* @tp_setattr@ */
2661 0, /* @tp_compare@ */
2662 0, /* @tp_repr@ */
2663 0, /* @tp_as_number@ */
2664 0, /* @tp_as_sequence@ */
2665 0, /* @tp_as_mapping@ */
2666 0, /* @tp_hash@ */
2667 0, /* @tp_call@ */
2668 0, /* @tp_str@ */
2669 0, /* @tp_getattro@ */
2670 0, /* @tp_setattro@ */
2671 0, /* @tp_as_buffer@ */
2672 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
2673 Py_TPFLAGS_BASETYPE,
2674
2675 /* @tp_doc@ */
d96c882e 2676 "Poly1305 metametaclass. Best not to ask.",
204d480b
MW		 2677
2678 0, /* @tp_traverse@ */
2679 0, /* @tp_clear@ */
2680 0, /* @tp_richcompare@ */
2681 0, /* @tp_weaklistoffset@ */
2682 0, /* @tp_iter@ */
2683 0, /* @tp_iternext@ */
2684 0, /* @tp_methods@ */
2685 0, /* @tp_members@ */
c90f712e 2686 PYGETSET(poly1305cls), /* @tp_getset@ */
204d480b
MW		 2687 0, /* @tp_base@ */
2688 0, /* @tp_dict@ */
2689 0, /* @tp_descr_get@ */
2690 0, /* @tp_descr_set@ */
2691 0, /* @tp_dictoffset@ */
2692 0, /* @tp_init@ */
2693 PyType_GenericAlloc, /* @tp_alloc@ */
2694 abstract_pynew, /* @tp_new@ */
2695 0, /* @tp_free@ */
2696 0 /* @tp_is_gc@ */
2697};
2698
2699static PyTypeObject poly1305key_pytype_skel = {
2700 PyObject_HEAD_INIT(0) 0, /* Header */
2701 "poly1305", /* @tp_name@ */
2702 sizeof(poly1305key_pyobj), /* @tp_basicsize@ */
2703 0, /* @tp_itemsize@ */
2704
2705 0, /* @tp_dealloc@ */
2706 0, /* @tp_print@ */
2707 0, /* @tp_getattr@ */
2708 0, /* @tp_setattr@ */
2709 0, /* @tp_compare@ */
2710 0, /* @tp_repr@ */
2711 0, /* @tp_as_number@ */
2712 0, /* @tp_as_sequence@ */
2713 0, /* @tp_as_mapping@ */
2714 0, /* @tp_hash@ */
2715 0, /* @tp_call@ */
2716 0, /* @tp_str@ */
2717 0, /* @tp_getattro@ */
2718 0, /* @tp_setattro@ */
2719 0, /* @tp_as_buffer@ */
2720 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
2721 Py_TPFLAGS_BASETYPE,
2722
2723 /* @tp_doc@ */
d96c882e 2724 "poly1305(K): Poly1305 key.",
204d480b
MW		 2725
2726 0, /* @tp_traverse@ */
2727 0, /* @tp_clear@ */
2728 0, /* @tp_richcompare@ */
2729 0, /* @tp_weaklistoffset@ */
2730 0, /* @tp_iter@ */
2731 0, /* @tp_iternext@ */
2732 0, /* @tp_methods@ */
2733 0, /* @tp_members@ */
2734 0, /* @tp_getset@ */
2735 0, /* @tp_base@ */
2736 0, /* @tp_dict@ */
2737 0, /* @tp_descr_get@ */
2738 0, /* @tp_descr_set@ */
2739 0, /* @tp_dictoffset@ */
2740 0, /* @tp_init@ */
2741 PyType_GenericAlloc, /* @tp_alloc@ */
2742 poly1305key_pynew, /* @tp_new@ */
2743 0, /* @tp_free@ */
2744 0 /* @tp_is_gc@ */
2745};
2746
2747static PyTypeObject poly1305hash_pytype_skel = {
2748 PyObject_HEAD_INIT(0) 0, /* Header */
2749 "Poly1305Hash", /* @tp_name@ */
2750 sizeof(poly1305hash_pyobj), /* @tp_basicsize@ */
2751 0, /* @tp_itemsize@ */
2752
2753 0, /* @tp_dealloc@ */
2754 0, /* @tp_print@ */
2755 0, /* @tp_getattr@ */
2756 0, /* @tp_setattr@ */
2757 0, /* @tp_compare@ */
2758 0, /* @tp_repr@ */
2759 0, /* @tp_as_number@ */
2760 0, /* @tp_as_sequence@ */
2761 0, /* @tp_as_mapping@ */
2762 0, /* @tp_hash@ */
2763 0, /* @tp_call@ */
2764 0, /* @tp_str@ */
2765 0, /* @tp_getattro@ */
2766 0, /* @tp_setattro@ */
2767 0, /* @tp_as_buffer@ */
2768 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
2769 Py_TPFLAGS_BASETYPE,
2770
2771 /* @tp_doc@ */
d96c882e 2772 "Poly1305 MAC context base class.",
204d480b
MW		 2773
2774 0, /* @tp_traverse@ */
2775 0, /* @tp_clear@ */
2776 0, /* @tp_richcompare@ */
2777 0, /* @tp_weaklistoffset@ */
2778 0, /* @tp_iter@ */
2779 0, /* @tp_iternext@ */
c90f712e 2780 PYMETHODS(poly1305hash), /* @tp_methods@ */
204d480b
MW		 2781 0, /* @tp_members@ */
2782 0, /* @tp_getset@ */
2783 0, /* @tp_base@ */
2784 0, /* @tp_dict@ */
2785 0, /* @tp_descr_get@ */
2786 0, /* @tp_descr_set@ */
2787 0, /* @tp_dictoffset@ */
2788 0, /* @tp_init@ */
2789 PyType_GenericAlloc, /* @tp_alloc@ */
2790 abstract_pynew, /* @tp_new@ */
2791 0, /* @tp_free@ */
2792 0 /* @tp_is_gc@ */
2793};
2794
a75e68c9
MW		 2795/*----- Special snowflake for HSalsa and HChaCha --------------------------*/
2796
2797#define DEF_HDANCE(DANCE, HDANCE, dance, hdance) \
2798 static PyObject *meth_##hdance##_prf(PyObject *me, PyObject *arg) \
2799 { \
2800 dance##_ctx dance; \
2801 char *k, *n; \
6b54260d 2802 Py_ssize_t ksz, nsz; \
a75e68c9
MW		 2803 PyObject *rc; \
2804 if (!PyArg_ParseTuple(arg, "s#s#:" #hdance "_prf", \
2805 &k, &ksz, &n, &nsz)) \
2806 goto end; \
0b7c311a 2807 if (ksz != keysz(ksz, dance##_keysz)) VALERR("bad key length"); \
a75e68c9
MW		 2808 if (nsz != HDANCE##_INSZ) VALERR("bad input length"); \
2809 rc = bytestring_pywrap(0, HSALSA20_OUTSZ); \
2810 dance##_init(&dance, k, ksz, 0); \
2811 hdance##_prf(&dance, n, PyString_AS_STRING(rc)); \
2812 return (rc); \
2813 end: \
2814 return (0); \
2815 }
2816
2817DEF_HDANCE(SALSA20, HSALSA20, salsa20, hsalsa20)
2818DEF_HDANCE(SALSA20, HSALSA20, salsa20, hsalsa2012)
2819DEF_HDANCE(SALSA20, HSALSA20, salsa20, hsalsa208)
2820
2821DEF_HDANCE(CHACHA, HCHACHA, chacha, hchacha20)
2822DEF_HDANCE(CHACHA, HCHACHA, chacha, hchacha12)
2823DEF_HDANCE(CHACHA, HCHACHA, chacha, hchacha8)
204d480b 2824
b35fdbe6
MW		 2825/*----- Keccak-p[1600, n] -------------------------------------------------*/
2826
2827static PyTypeObject *kxvik_pytype;
2828
2829typedef struct kxvik_pyobj {
2830 PyObject_HEAD
2831 keccak1600_state s;
2832 unsigned n;
2833} kxvik_pyobj;
2834
8d2dd9dc 2835static PyObject *kxvik_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
b35fdbe6
MW		 2836{
2837 unsigned n = 24;
2838 kxvik_pyobj *rc = 0;
827f89d7
MW		 2839 static const char *const kwlist[] = { "nround", 0 };
2840 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:new", KWLIST,
b35fdbe6
MW		 2841 convuint, &n))
2842 goto end;
2843 rc = (kxvik_pyobj *)ty->tp_alloc(ty, 0);
2844 rc->n = n;
2845 keccak1600_init(&rc->s);
2846end:
2847 return ((PyObject *)rc);
2848}
2849
91e56f06 2850static PyObject *kxvikmeth_copy(PyObject *me)
cfe80e51
MW		 2851{
2852 kxvik_pyobj *k = (kxvik_pyobj *)me, *rc = 0;
cfe80e51
MW		 2853 rc = (kxvik_pyobj *)k->ob_type->tp_alloc(k->ob_type, 0);
2854 rc->s = k->s; rc->n = k->n;
cfe80e51
MW		 2855 return ((PyObject *)rc);
2856}
2857
b35fdbe6
MW		 2858static PyObject *kxvikmeth_mix(PyObject *me, PyObject *arg)
2859{
2860 kxvik_pyobj *k = (kxvik_pyobj *)me;
2861 kludge64 t[25];
2862 const octet *q;
2863 octet buf[8];
2864 unsigned i;
2865 char *p; Py_ssize_t n;
2866
2867 if (!PyArg_ParseTuple(arg, "s#:mix", &p, &n)) goto end;
2868 if (n > 200) VALERR("out of range");
2869 q = (const octet *)p;
2870 i = 0;
2871 while (n > 8) { LOAD64_L_(t[i], q); i++; q += 8; n -= 8; }
2872 if (n) {
2873 memcpy(buf, q, n); memset(buf + n, 0, 8 - n);
2874 LOAD64_L_(t[i], buf); i++;
2875 }
2876 keccak1600_mix(&k->s, t, i);
2877 RETURN_ME;
2878end:
2879 return (0);
2880}
2881
2882static PyObject *kxvikmeth_extract(PyObject *me, PyObject *arg)
2883{
2884 kxvik_pyobj *k = (kxvik_pyobj *)me;
2885 PyObject *rc = 0;
2886 kludge64 t[25];
2887 octet *q, buf[8];
2888 unsigned i;
2889 unsigned n;
2890
ae5dbbad 2891 if (!PyArg_ParseTuple(arg, "O&:extract", convuint, &n)) goto end;
b35fdbe6
MW		 2892 if (n > 200) VALERR("out of range");
2893 rc = bytestring_pywrap(0, n);
2894 q = (octet *)PyString_AS_STRING(rc);
2895 keccak1600_extract(&k->s, t, (n + 7)/8);
2896 i = 0;
2897 while (n > 8) { STORE64_L_(q, t[i]); i++; q += 8; n -= 8; }
2898 if (n) { STORE64_L_(buf, t[i]); memcpy(q, buf, n); }
2899end:
2900 return (rc);
2901}
2902
91e56f06 2903static PyObject *kxvikmeth_step(PyObject *me)
b35fdbe6
MW		 2904{
2905 kxvik_pyobj *k = (kxvik_pyobj *)me;
b35fdbe6
MW		 2906 keccak1600_p(&k->s, &k->s, k->n);
2907 RETURN_ME;
2908}
2909
2910static PyObject *kxvikget_nround(PyObject *me, void *hunoz)
2911{
2912 kxvik_pyobj *k = (kxvik_pyobj *)me;
2913 return (PyInt_FromLong(k->n));
2914}
2915
2916static int kxvikset_nround(PyObject *me, PyObject *val, void *hunoz)
2917{
2918 kxvik_pyobj *k = (kxvik_pyobj *)me;
2919 unsigned n;
d26c1ca8 2920 int rc = -1;
b35fdbe6 2921
d26c1ca8
MW		 2922 if (!val) NIERR("__del__");
2923 if (!convuint(val, &n)) goto end;
b35fdbe6 2924 k->n = n;
d26c1ca8
MW		 2925 rc = 0;
2926end:
2927 return (rc);
b35fdbe6
MW		 2928}
2929
c90f712e 2930static const PyGetSetDef kxvik_pygetset[] = {
b35fdbe6 2931#define GETSETNAME(op, name) kxvik##op##_##name
d96c882e 2932 GETSET(nround, "KECCAK.nround -> number of rounds")
b35fdbe6
MW		 2933#undef GETSETNAME
2934 { 0 }
2935};
2936
c90f712e 2937static const PyMethodDef kxvik_pymethods[] = {
b35fdbe6 2938#define METHNAME(func) kxvikmeth_##func
91e56f06 2939 NAMETH(copy, "KECCAK.copy() -> KECCAK'")
d96c882e
MW		 2940 METH (mix, "KECCAK.mix(DATA)")
2941 METH (extract, "KECCAK.extract(NOCTETS)")
91e56f06 2942 NAMETH(step, "KECCAK.step()")
b35fdbe6
MW		 2943#undef METHNAME
2944 { 0 }
2945};
2946
2947static PyTypeObject kxvik_pytype_skel = {
2948 PyObject_HEAD_INIT(0) 0, /* Header */
2949 "Keccak1600", /* @tp_name@ */
2950 sizeof(kxvik_pyobj), /* @tp_basicsize@ */
2951 0, /* @tp_itemsize@ */
2952
2953 0, /* @tp_dealloc@ */
2954 0, /* @tp_print@ */
2955 0, /* @tp_getattr@ */
2956 0, /* @tp_setattr@ */
2957 0, /* @tp_compare@ */
2958 0, /* @tp_repr@ */
2959 0, /* @tp_as_number@ */
2960 0, /* @tp_as_sequence@ */
2961 0, /* @tp_as_mapping@ */
2962 0, /* @tp_hash@ */
2963 0, /* @tp_call@ */
2964 0, /* @tp_str@ */
2965 0, /* @tp_getattro@ */
2966 0, /* @tp_setattro@ */
2967 0, /* @tp_as_buffer@ */
2968 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
2969 Py_TPFLAGS_BASETYPE,
2970
2971 /* @tp_doc@ */
d96c882e 2972 "Keccak1600([nround = 24]): Keccak-p[1600, n] state.",
b35fdbe6
MW		 2973
2974 0, /* @tp_traverse@ */
2975 0, /* @tp_clear@ */
2976 0, /* @tp_richcompare@ */
2977 0, /* @tp_weaklistoffset@ */
2978 0, /* @tp_iter@ */
2979 0, /* @tp_iternext@ */
c90f712e 2980 PYMETHODS(kxvik), /* @tp_methods@ */
b35fdbe6 2981 0, /* @tp_members@ */
c90f712e 2982 PYGETSET(kxvik), /* @tp_getset@ */
b35fdbe6
MW		 2983 0, /* @tp_base@ */
2984 0, /* @tp_dict@ */
2985 0, /* @tp_descr_get@ */
2986 0, /* @tp_descr_set@ */
2987 0, /* @tp_dictoffset@ */
2988 0, /* @tp_init@ */
2989 PyType_GenericAlloc, /* @tp_alloc@ */
2990 kxvik_pynew, /* @tp_new@ */
2991 0, /* @tp_free@ */
2992 0 /* @tp_is_gc@ */
2993};
2994
6bd22b53
MW		 2995static PyTypeObject *shake_pytype, *shake128_pytype, *shake256_pytype;
2996
2997typedef struct shake_pyobj {
2998 PyObject_HEAD
2999 int st;
3000 shake_ctx h;
3001} shake_pyobj;
3002
3003#define SHAKE_H(o) (&((shake_pyobj *)(o))->h)
3004#define SHAKE_ST(o) (((shake_pyobj *)(o))->st)
3005
3006static PyObject *shake_dopynew(void (*initfn)(shake_ctx *,
3007 const void *, size_t,
3008 const void *, size_t),
3009 PyTypeObject *ty,
3010 PyObject *arg, PyObject *kw)
3011{
3012 shake_pyobj *rc = 0;
3013 char *p = 0, *f = 0;
3014 Py_ssize_t psz = 0, fsz = 0;
827f89d7 3015 static const char *const kwlist[] = { "perso", "func", 0 };
6bd22b53 3016
827f89d7 3017 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|s#s#:new", KWLIST,
6bd22b53
MW		 3018 &p, &psz, &f, &fsz))
3019 goto end;
3020 rc = (shake_pyobj *)ty->tp_alloc(ty, 0);
3021 initfn(&rc->h, f, fsz, p, psz);
3022 rc->st = 0;
3023end:
3024 return ((PyObject *)rc);
3025}
3026
3027static PyObject *shake128_pynew(PyTypeObject *ty,
3028 PyObject *arg, PyObject *kw)
3029 { return (shake_dopynew(cshake128_init, ty, arg, kw)); }
3030
3031static PyObject *shake256_pynew(PyTypeObject *ty,
3032 PyObject *arg, PyObject *kw)
3033 { return (shake_dopynew(cshake256_init, ty, arg, kw)); }
3034
3035static int shake_check(PyObject *me, int st)
3036{
3037 if (SHAKE_ST(me) != st) VALERR("wrong state");
3038 return (0);
3039end:
3040 return (-1);
3041}
3042
3043static PyObject *shakemeth_hash(PyObject *me, PyObject *arg)
3044{
3045 char *p;
3046 Py_ssize_t sz;
3047 if (!PyArg_ParseTuple(arg, "s#:hash", &p, &sz)) return (0);
3048 if (shake_check(me, 0)) return (0);
3049 shake_hash(SHAKE_H(me), p, sz);
3050 RETURN_ME;
3051}
3052
3053#define SHAKEMETH_HASHU_(n, W, w) \
3054 static PyObject *shakemeth_hashu##w(PyObject *me, PyObject *arg) \
3055 { \
3056 uint##n x; \
3057 octet b[SZ_##W]; \
0e5c668c
MW		 3058 if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) return (0); \
3059 if (shake_check(me, 0)) return (0); \
6bd22b53
MW		 3060 STORE##W(b, x); shake_hash(SHAKE_H(me), b, sizeof(b)); \
3061 RETURN_ME; \
6bd22b53
MW		 3062 }
3063DOUINTCONV(SHAKEMETH_HASHU_)
3064
3065#define SHAKEMETH_HASHBUF_(n, W, w) \
3066 static PyObject *shakemeth_hashbuf##w(PyObject *me, PyObject *arg) \
3067 { \
3068 char *p; \
3069 Py_ssize_t sz; \
3070 octet b[SZ_##W]; \
3071 if (!PyArg_ParseTuple(arg, "s#:hashbuf" #w, &p, &sz)) goto end; \
3072 if (sz > MASK##n) TYERR("string too long"); \
3073 if (shake_check(me, 0)) goto end; \
3074 STORE##W(b, sz); shake_hash(SHAKE_H(me), b, sizeof(b)); \
3075 shake_hash(SHAKE_H(me), p, sz); \
3076 RETURN_ME; \
3077 end: \
3078 return (0); \
3079 }
3080DOUINTCONV(SHAKEMETH_HASHBUF_)
3081
3082static PyObject *shakemeth_hashstrz(PyObject *me, PyObject *arg)
3083{
3084 char *p;
3085 if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0);
3086 if (shake_check(me, 0)) return (0);
3087 shake_hash(SHAKE_H(me), p, strlen(p) + 1);
3088 RETURN_ME;
3089}
3090
91e56f06 3091static PyObject *shakemeth_xof(PyObject *me)
6bd22b53 3092{
6bd22b53
MW		 3093 if (shake_check(me, 0)) goto end;
3094 shake_xof(SHAKE_H(me));
3095 SHAKE_ST(me) = 1;
3096 RETURN_ME;
3097end:
3098 return (0);
3099}
3100
3101static PyObject *shakemeth_done(PyObject *me, PyObject *arg)
3102{
3103 PyObject *rc = 0;
3104 size_t n;
3105 if (!PyArg_ParseTuple(arg, "O&:done", convszt, &n)) goto end;
3106 if (shake_check(me, 0)) goto end;
3107 rc = bytestring_pywrap(0, n);
3108 shake_done(SHAKE_H(me), PyString_AS_STRING(rc), n);
3109 SHAKE_ST(me) = -1;
3110end:
3111 return (rc);
3112}
3113
91e56f06 3114static PyObject *shakemeth_copy(PyObject *me)
6bd22b53
MW		 3115{
3116 shake_pyobj *rc = 0;
3117
6bd22b53
MW		 3118 rc = PyObject_NEW(shake_pyobj, me->ob_type);
3119 rc->h = *SHAKE_H(me);
3120 rc->st = SHAKE_ST(me);
9b5c9816 3121 return ((PyObject *)rc);
6bd22b53
MW		 3122}
3123
3124static PyObject *shakemeth_get(PyObject *me, PyObject *arg)
3125{
3126 PyObject *rc = 0;
3127 size_t sz;
3128
3129 if (!PyArg_ParseTuple(arg, "O&:get", convszt, &sz)) goto end;
3130 if (shake_check(me, 1)) goto end;
3131 rc = bytestring_pywrap(0, sz);
3132 shake_get(SHAKE_H(me), PyString_AS_STRING(rc), sz);
3133end:
3134 return (rc);
3135}
3136
3137static PyObject *shakemeth_mask(PyObject *me, PyObject *arg)
3138{
3139 PyObject *rc = 0;
3140 char *p; Py_ssize_t sz;
3141
3142 if (!PyArg_ParseTuple(arg, "s#:mask", &p, &sz)) goto end;
3143 if (shake_check(me, 1)) goto end;
3144 rc = bytestring_pywrap(0, sz);
3145 shake_mask(SHAKE_H(me), p, PyString_AS_STRING(rc), sz);
3146end:
3147 return (rc);
3148}
3149
3150static PyObject *shakeget_rate(PyObject *me, void *hunoz)
3151 { return (PyInt_FromLong(SHAKE_H(me)->h.r)); }
3152
3153static PyObject *shakeget_buffered(PyObject *me, void *hunoz)
3154 { return (PyInt_FromLong(SHAKE_H(me)->h.n)); }
3155
3156static PyObject *shakeget_state(PyObject *me, void *hunoz)
3157{
3158 int st = SHAKE_ST(me);
3159 return (PyString_FromString(st == 0 ? "absorb" :
3160 st == 1 ? "squeeze" : "dead"));
3161}
3162
c90f712e 3163static const PyGetSetDef shake_pygetset[] = {
6bd22b53 3164#define GETSETNAME(op, name) shake##op##_##name
d96c882e
MW		 3165 GET (rate, "S.rate -> rate, in bytes")
3166 GET (buffered, "S.buffered -> amount currently buffered")
3167 GET (state, "S.state -> `absorb', `squeeze', `dead'")
6bd22b53
MW		 3168#undef GETSETNAME
3169 { 0 }
3170};
3171
c90f712e 3172static const PyMethodDef shake_pymethods[] = {
6bd22b53 3173#define METHNAME(func) shakemeth_##func
91e56f06 3174 NAMETH(copy, "S.copy() -> SS")
d96c882e 3175 METH (hash, "S.hash(M)")
6bd22b53
MW		 3176#define METHU_(n, W, w) METH(hashu##w, "S.hashu" #w "(WORD)")
3177 DOUINTCONV(METHU_)
3178#undef METHU_
3179#define METHBUF_(n, W, w) METH(hashbuf##w, "S.hashbuf" #w "(BYTES)")
3180 DOUINTCONV(METHBUF_)
3181#undef METHBUF_
d96c882e 3182 METH (hashstrz, "S.hashstrz(STRING)")
91e56f06 3183 NAMETH(xof, "S.xof()")
d96c882e
MW		 3184 METH (done, "S.done(LEN) -> H")
3185 METH (get, "S.get(LEN) -> H")
3186 METH (mask, "S.mask(M) -> C")
6bd22b53
MW		 3187#undef METHNAME
3188 { 0 }
3189};
3190
3191static PyTypeObject shake_pytype_skel = {
3192 PyObject_HEAD_INIT(0) 0, /* Header */
3193 "Shake", /* @tp_name@ */
3194 sizeof(shake_pyobj), /* @tp_basicsize@ */
3195 0, /* @tp_itemsize@ */
3196
3197 0, /* @tp_dealloc@ */
3198 0, /* @tp_print@ */
3199 0, /* @tp_getattr@ */
3200 0, /* @tp_setattr@ */
3201 0, /* @tp_compare@ */
3202 0, /* @tp_repr@ */
3203 0, /* @tp_as_number@ */
3204 0, /* @tp_as_sequence@ */
3205 0, /* @tp_as_mapping@ */
3206 0, /* @tp_hash@ */
3207 0, /* @tp_call@ */
3208 0, /* @tp_str@ */
3209 0, /* @tp_getattro@ */
3210 0, /* @tp_setattro@ */
3211 0, /* @tp_as_buffer@ */
3212 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
3213 Py_TPFLAGS_BASETYPE,
3214
3215 /* @tp_doc@ */
d96c882e 3216 "SHAKE/cSHAKE/KMAC base class.",
6bd22b53
MW		 3217
3218 0, /* @tp_traverse@ */
3219 0, /* @tp_clear@ */
3220 0, /* @tp_richcompare@ */
3221 0, /* @tp_weaklistoffset@ */
3222 0, /* @tp_iter@ */
3223 0, /* @tp_iternext@ */
c90f712e 3224 PYMETHODS(shake), /* @tp_methods@ */
6bd22b53 3225 0, /* @tp_members@ */
c90f712e 3226 PYGETSET(shake), /* @tp_getset@ */
6bd22b53
MW		 3227 0, /* @tp_base@ */
3228 0, /* @tp_dict@ */
3229 0, /* @tp_descr_get@ */
3230 0, /* @tp_descr_set@ */
3231 0, /* @tp_dictoffset@ */
3232 0, /* @tp_init@ */
3233 PyType_GenericAlloc, /* @tp_alloc@ */
3234 abstract_pynew, /* @tp_new@ */
3235 0, /* @tp_free@ */
3236 0 /* @tp_is_gc@ */
3237};
3238
3239static PyTypeObject shake128_pytype_skel = {
3240 PyObject_HEAD_INIT(0) 0, /* Header */
3241 "Shake128", /* @tp_name@ */
3242 0, /* @tp_basicsize@ */
3243 0, /* @tp_itemsize@ */
3244
3245 0, /* @tp_dealloc@ */
3246 0, /* @tp_print@ */
3247 0, /* @tp_getattr@ */
3248 0, /* @tp_setattr@ */
3249 0, /* @tp_compare@ */
3250 0, /* @tp_repr@ */
3251 0, /* @tp_as_number@ */
3252 0, /* @tp_as_sequence@ */
3253 0, /* @tp_as_mapping@ */
3254 0, /* @tp_hash@ */
3255 0, /* @tp_call@ */
3256 0, /* @tp_str@ */
3257 0, /* @tp_getattro@ */
3258 0, /* @tp_setattro@ */
3259 0, /* @tp_as_buffer@ */
3260 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
3261 Py_TPFLAGS_BASETYPE,
3262
3263 /* @tp_doc@ */
d96c882e 3264 "Shake128([perso = STR], [func = STR]): SHAKE128/cSHAKE128 XOF.",
6bd22b53
MW		 3265
3266 0, /* @tp_traverse@ */
3267 0, /* @tp_clear@ */
3268 0, /* @tp_richcompare@ */
3269 0, /* @tp_weaklistoffset@ */
3270 0, /* @tp_iter@ */
3271 0, /* @tp_iternext@ */
3272 0, /* @tp_methods@ */
3273 0, /* @tp_members@ */
3274 0, /* @tp_getset@ */
3275 0, /* @tp_base@ */
3276 0, /* @tp_dict@ */
3277 0, /* @tp_descr_get@ */
3278 0, /* @tp_descr_set@ */
3279 0, /* @tp_dictoffset@ */
3280 0, /* @tp_init@ */
3281 PyType_GenericAlloc, /* @tp_alloc@ */
3282 shake128_pynew, /* @tp_new@ */
3283 0, /* @tp_free@ */
3284 0 /* @tp_is_gc@ */
3285};
3286
3287static PyTypeObject shake256_pytype_skel = {
3288 PyObject_HEAD_INIT(0) 0, /* Header */
3289 "Shake256", /* @tp_name@ */
3290 0, /* @tp_basicsize@ */
3291 0, /* @tp_itemsize@ */
3292
3293 0, /* @tp_dealloc@ */
3294 0, /* @tp_print@ */
3295 0, /* @tp_getattr@ */
3296 0, /* @tp_setattr@ */
3297 0, /* @tp_compare@ */
3298 0, /* @tp_repr@ */
3299 0, /* @tp_as_number@ */
3300 0, /* @tp_as_sequence@ */
3301 0, /* @tp_as_mapping@ */
3302 0, /* @tp_hash@ */
3303 0, /* @tp_call@ */
3304 0, /* @tp_str@ */
3305 0, /* @tp_getattro@ */
3306 0, /* @tp_setattro@ */
3307 0, /* @tp_as_buffer@ */
3308 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
3309 Py_TPFLAGS_BASETYPE,
3310
3311 /* @tp_doc@ */
d96c882e 3312 "Shake256([perso = STR], [func = STR]): SHAKE256/cSHAKE256 XOF.",
6bd22b53
MW		 3313
3314 0, /* @tp_traverse@ */
3315 0, /* @tp_clear@ */
3316 0, /* @tp_richcompare@ */
3317 0, /* @tp_weaklistoffset@ */
3318 0, /* @tp_iter@ */
3319 0, /* @tp_iternext@ */
3320 0, /* @tp_methods@ */
3321 0, /* @tp_members@ */
3322 0, /* @tp_getset@ */
3323 0, /* @tp_base@ */
3324 0, /* @tp_dict@ */
3325 0, /* @tp_descr_get@ */
3326 0, /* @tp_descr_set@ */
3327 0, /* @tp_dictoffset@ */
3328 0, /* @tp_init@ */
3329 PyType_GenericAlloc, /* @tp_alloc@ */
3330 shake256_pynew, /* @tp_new@ */
3331 0, /* @tp_free@ */
3332 0 /* @tp_is_gc@ */
3333};
3334
03ed9abb
MW		 3335/*----- Pseudorandom permutations -----------------------------------------*/
3336
3337static PyTypeObject *gcprp_pytype, *gprp_pytype;
3338
3339typedef struct prpinfo {
3340 const char *name;
3341 const octet *keysz;
3342 size_t ctxsz;
3343 size_t blksz;
3344 void (*init)(void *, const void *, size_t);
3345 void (*eblk)(void *, const void *, void *);
3346 void (*dblk)(void *, const void *, void *);
3347} prpinfo;
3348
3349#define PRP_DEF(PRE, pre) \
3350 static void pre##_prpinit(void *ctx, const void *k, size_t ksz) \
3351 { pre##_init(ctx, k, ksz); } \
3352 static void pre##_prpeblk(void *ctx, const void *in, void *out) \
3353 { \
3354 uint32 w[PRE##_BLKSZ/4]; BLKC_LOAD(PRE, w, in); \
3355 pre##_eblk(ctx, w, w); BLKC_STORE(PRE, out, w); \
3356 } \
3357 static void pre##_prpdblk(void *ctx, const void *in, void *out) \
3358 { \
3359 uint32 w[PRE##_BLKSZ/4]; BLKC_LOAD(PRE, w, in); \
3360 pre##_dblk(ctx, w, w); BLKC_STORE(PRE, out, w); \
3361 } \
3362 static const prpinfo pre##_prpinfo = { \
3363 #pre, pre##_keysz, sizeof(pre##_ctx), PRE##_BLKSZ, \
3364 pre##_prpinit, pre##_prpeblk, pre##_prpdblk \
3365 };
3366PRPS(PRP_DEF)
3367
3368static const struct prpinfo *const gprptab[] = {
3369#define PRP_ENTRY(PRE, pre) &pre##_prpinfo,
3370 PRPS(PRP_ENTRY)
3371 0
b2687a0a 3372};
03ed9abb
MW		 3373
3374typedef struct gcprp_pyobj {
3375 PyHeapTypeObject ty;
3376 const prpinfo *prp;
3377} gcprp_pyobj;
3378#define GCPRP_PRP(o) (((gcprp_pyobj *)(o))->prp)
3379
3380typedef struct gprp_pyobj {
3381 PyObject_HEAD
3382 const prpinfo *prp;
3383} gprp_pyobj;
3384#define GPRP_PRP(o) (((gprp_pyobj *)(o))->prp)
3385#define GPRP_CTX(o) (((gprp_pyobj *)(o)) + 1)
3386
3387typedef struct prp {
3388 const prpinfo *prp;
3389 void *ctx;
3390} prp;
3391
3392static PyObject *gprp_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
3393{
827f89d7 3394 static const char *const kwlist[] = { "key", 0 };
03ed9abb 3395 char *k;
6b54260d 3396 Py_ssize_t sz;
03ed9abb
MW		 3397 const prpinfo *prp = GCPRP_PRP(ty);
3398 PyObject *me;
3399
827f89d7 3400 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", KWLIST, &k, &sz))
03ed9abb
MW		 3401 goto end;
3402 if (keysz(sz, prp->keysz) != sz) VALERR("bad key length");
3403 me = (PyObject *)ty->tp_alloc(ty, 0);
3404 GPRP_PRP(me) = prp;
3405 prp->init(GPRP_CTX(me), k, sz);
3406 Py_INCREF(me);
3407 return (me);
3408end:
b2687a0a 3409 return (0);
03ed9abb
MW		 3410}
3411
3412static void gprp_pydealloc(PyObject *me)
3413 { Py_DECREF(me->ob_type); FREEOBJ(me); }
3414
3415static PyObject *gcprp_pywrap(const prpinfo *prp)
3416{
3417 gcprp_pyobj *g = newtype(gcprp_pytype, 0, prp->name);
3418 g->prp = prp;
24b3d57b
MW		 3419 g->ty.ht_type.tp_basicsize = sizeof(gprp_pyobj) + prp->ctxsz;
3420 g->ty.ht_type.tp_base = gprp_pytype;
03ed9abb 3421 Py_INCREF(gprp_pytype);
24b3d57b
MW		 3422 g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT |
3423 Py_TPFLAGS_BASETYPE |
3424 Py_TPFLAGS_HEAPTYPE);
3425 g->ty.ht_type.tp_alloc = PyType_GenericAlloc;
3426 g->ty.ht_type.tp_free = 0;
3427 g->ty.ht_type.tp_new = gprp_pynew;
dc075750 3428 typeready(&g->ty.ht_type);
03ed9abb
MW		 3429 return ((PyObject *)g);
3430}
3431
3432static PyObject *gcpget_name(PyObject *me, void *hunoz)
3433 { return (PyString_FromString(GCPRP_PRP(me)->name)); }
3434static PyObject *gcpget_keysz(PyObject *me, void *hunoz)
3435 { return (keysz_pywrap(GCPRP_PRP(me)->keysz)); }
3436static PyObject *gcpget_blksz(PyObject *me, void *hunoz)
3437 { return (PyInt_FromLong(GCPRP_PRP(me)->blksz)); }
3438
3439static PyObject *gpmeth_encrypt(PyObject *me, PyObject *arg)
3440{
3441 char *p;
6b54260d 3442 Py_ssize_t n;
03ed9abb
MW		 3443 PyObject *rc = 0;
3444
3445 if (!PyArg_ParseTuple(arg, "s#:encrypt", &p, &n)) goto end;
3446 if (n != GPRP_PRP(me)->blksz) VALERR("incorrect block length");
3447 rc = bytestring_pywrap(0, n);
3448 GPRP_PRP(me)->eblk(GPRP_CTX(me), p, PyString_AS_STRING(rc));
3449end:
3450 return (rc);
3451}
3452
3453static PyObject *gpmeth_decrypt(PyObject *me, PyObject *arg)
3454{
3455 char *p;
6b54260d 3456 Py_ssize_t n;
03ed9abb
MW		 3457 PyObject *rc = 0;
3458
3459 if (!PyArg_ParseTuple(arg, "s#:decrypt", &p, &n)) goto end;
3460 if (n != GPRP_PRP(me)->blksz) VALERR("incorrect block length");
3461 rc = bytestring_pywrap(0, n);
3462 GPRP_PRP(me)->dblk(GPRP_CTX(me), p, PyString_AS_STRING(rc));
3463end:
3464 return (rc);
3465}
3466
c90f712e 3467static const PyGetSetDef gcprp_pygetset[] = {
03ed9abb 3468#define GETSETNAME(op, name) gcp##op##_##name
d96c882e
MW		 3469 GET (keysz, "CP.keysz -> acceptable key sizes")
3470 GET (blksz, "CP.blksz -> block size")
3471 GET (name, "CP.name -> name of this kind of PRP")
03ed9abb
MW		 3472#undef GETSETNAME
3473 { 0 }
3474};
3475
c90f712e 3476static const PyMethodDef gprp_pymethods[] = {
03ed9abb 3477#define METHNAME(name) gpmeth_##name
d96c882e
MW		 3478 METH (encrypt, "P.encrypt(PT) -> CT")
3479 METH (decrypt, "P.decrypt(CT) -> PT")
03ed9abb
MW		 3480#undef METHNAME
3481 { 0 }
3482};
3483
3484static PyTypeObject gcprp_pytype_skel = {
3485 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 3486 "GCPRP", /* @tp_name@ */
03ed9abb
MW		 3487 sizeof(gcprp_pyobj), /* @tp_basicsize@ */
3488 0, /* @tp_itemsize@ */
3489
3490 0, /* @tp_dealloc@ */
3491 0, /* @tp_print@ */
3492 0, /* @tp_getattr@ */
3493 0, /* @tp_setattr@ */
3494 0, /* @tp_compare@ */
3495 0, /* @tp_repr@ */
3496 0, /* @tp_as_number@ */
3497 0, /* @tp_as_sequence@ */
3498 0, /* @tp_as_mapping@ */
3499 0, /* @tp_hash@ */
3500 0, /* @tp_call@ */
3501 0, /* @tp_str@ */
3502 0, /* @tp_getattro@ */
3503 0, /* @tp_setattro@ */
3504 0, /* @tp_as_buffer@ */
3505 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
3506 Py_TPFLAGS_BASETYPE,
3507
3508 /* @tp_doc@ */
d96c882e 3509 "Pseudorandom permutation metaclass.",
03ed9abb
MW		 3510
3511 0, /* @tp_traverse@ */
3512 0, /* @tp_clear@ */
3513 0, /* @tp_richcompare@ */
3514 0, /* @tp_weaklistoffset@ */
3515 0, /* @tp_iter@ */
3516 0, /* @tp_iternext@ */
3517 0, /* @tp_methods@ */
3518 0, /* @tp_members@ */
c90f712e 3519 PYGETSET(gcprp), /* @tp_getset@ */
03ed9abb
MW		 3520 0, /* @tp_base@ */
3521 0, /* @tp_dict@ */
3522 0, /* @tp_descr_get@ */
3523 0, /* @tp_descr_set@ */
3524 0, /* @tp_dictoffset@ */
3525 0, /* @tp_init@ */
3526 PyType_GenericAlloc, /* @tp_alloc@ */
3527 abstract_pynew, /* @tp_new@ */
3528 0, /* @tp_free@ */
3529 0 /* @tp_is_gc@ */
3530};
3531
3532static PyTypeObject gprp_pytype_skel = {
3533 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 3534 "GPRP", /* @tp_name@ */
03ed9abb
MW		 3535 sizeof(gprp_pyobj), /* @tp_basicsize@ */
3536 0, /* @tp_itemsize@ */
3537
3538 gprp_pydealloc, /* @tp_dealloc@ */
3539 0, /* @tp_print@ */
3540 0, /* @tp_getattr@ */
3541 0, /* @tp_setattr@ */
3542 0, /* @tp_compare@ */
3543 0, /* @tp_repr@ */
3544 0, /* @tp_as_number@ */
3545 0, /* @tp_as_sequence@ */
3546 0, /* @tp_as_mapping@ */
3547 0, /* @tp_hash@ */
3548 0, /* @tp_call@ */
3549 0, /* @tp_str@ */
3550 0, /* @tp_getattro@ */
3551 0, /* @tp_setattro@ */
3552 0, /* @tp_as_buffer@ */
3553 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
3554 Py_TPFLAGS_BASETYPE,
3555
3556 /* @tp_doc@ */
d96c882e 3557 "Pseudorandom permutation, abstract base class.",
03ed9abb
MW		 3558
3559 0, /* @tp_traverse@ */
3560 0, /* @tp_clear@ */
3561 0, /* @tp_richcompare@ */
3562 0, /* @tp_weaklistoffset@ */
3563 0, /* @tp_iter@ */
3564 0, /* @tp_iternext@ */
c90f712e 3565 PYMETHODS(gprp), /* @tp_methods@ */
03ed9abb
MW		 3566 0, /* @tp_members@ */
3567 0, /* @tp_getset@ */
3568 0, /* @tp_base@ */
3569 0, /* @tp_dict@ */
3570 0, /* @tp_descr_get@ */
3571 0, /* @tp_descr_set@ */
3572 0, /* @tp_dictoffset@ */
3573 0, /* @tp_init@ */
3574 PyType_GenericAlloc, /* @tp_alloc@ */
3575 abstract_pynew, /* @tp_new@ */
3576 0, /* @tp_free@ */
3577 0 /* @tp_is_gc@ */
3578};
3579
d7ab1bab 3580/*----- Main code ---------------------------------------------------------*/
3581
c90f712e 3582static const PyMethodDef methods[] = {
89157adc 3583#define METHNAME(func) meth_##func
d96c882e
MW		 3584#define METH_HDANCE(hdance, HDance) METH(hdance##_prf, \
3585 "" #hdance "_prf(K, N) -> H: calculate " HDance " hash of N with K")
a75e68c9
MW		 3586 METH_HDANCE(hsalsa20, "HSalsa20")
3587 METH_HDANCE(hsalsa2012, "HSalsa20/12")
3588 METH_HDANCE(hsalsa208, "HSalsa20/8")
3589 METH_HDANCE(hchacha20, "HChaCha20")
3590 METH_HDANCE(hchacha12, "HChaCha12")
3591 METH_HDANCE(hchacha8, "HChaCha8")
3592#undef METH_DANCE
89157adc
MW		 3593#undef METHNAME
3594 { 0 }
3595};
3596
d7ab1bab 3597void algorithms_pyinit(void)
3598{
3599 INITTYPE(keysz, root);
3600 INITTYPE(keyszany, keysz);
3601 INITTYPE(keyszrange, keysz);
3602 INITTYPE(keyszset, keysz);
3603 INITTYPE(gccipher, type);
3604 INITTYPE(gcipher, root);
bebf03ab
MW		 3605 INITTYPE(gcaead, type);
3606 INITTYPE(gaeadkey, root);
3607 INITTYPE(gcaeadaad, type);
3608 INITTYPE(gaeadaad, root);
3609 INITTYPE(gcaeadenc, type);
3610 INITTYPE(gaeadenc, root);
3611 INITTYPE(gcaeaddec, type);
3612 INITTYPE(gaeaddec, root);
d7ab1bab 3613 INITTYPE(gchash, type);
3614 INITTYPE(ghash, root);
3615 INITTYPE(gcmac, type);
3616 INITTYPE(gmac, type);
3617 INITTYPE(gmhash, ghash);
204d480b
MW		 3618 INITTYPE(poly1305cls, type);
3619 INITTYPE_META(poly1305key, type, poly1305cls);
3620 INITTYPE(poly1305hash, root);
b35fdbe6 3621 INITTYPE(kxvik, root);
6bd22b53
MW		 3622 INITTYPE(shake, root);
3623 INITTYPE(shake128, shake);
3624 INITTYPE(shake256, shake);
03ed9abb
MW		 3625 INITTYPE(gcprp, type);
3626 INITTYPE(gprp, root);
89157adc 3627 addmethods(methods);
d7ab1bab 3628}
3629
d7ab1bab 3630GEN(gcciphers, cipher)
bebf03ab 3631GEN(gcaeads, aead)
d7ab1bab 3632GEN(gchashes, hash)
3633GEN(gcmacs, mac)
03ed9abb
MW		 3634#define gcprp prpinfo
3635GEN(gcprps, prp)
d7ab1bab 3636
3637void algorithms_pyinsert(PyObject *mod)
3638{
3639 PyObject *d;
3640 INSERT("KeySZ", keysz_pytype);
3641 INSERT("KeySZAny", keyszany_pytype);
3642 INSERT("KeySZRange", keyszrange_pytype);
3643 INSERT("KeySZSet", keyszset_pytype);
3644 INSERT("GCCipher", gccipher_pytype);
3645 INSERT("GCipher", gcipher_pytype);
3646 INSERT("gcciphers", gcciphers());
bebf03ab
MW		 3647 INSERT("GCAEAD", gcaead_pytype);
3648 INSERT("GAEKey", gaeadkey_pytype);
3649 INSERT("GAEAADClass", gcaeadaad_pytype);
3650 INSERT("GAEAAD", gaeadaad_pytype);
3651 INSERT("GAEEncClass", gcaeadenc_pytype);
3652 INSERT("GAEEnc", gaeadenc_pytype);
3653 INSERT("GAEDecClass", gcaeaddec_pytype);
3654 INSERT("GAEDec", gaeaddec_pytype);
3655 INSERT("gcaeads", gcaeads());
d7ab1bab 3656 INSERT("GCHash", gchash_pytype);
3657 INSERT("GHash", ghash_pytype);
3658 INSERT("gchashes", d = gchashes());
3659 sha_pyobj = PyDict_GetItemString(d, "sha"); Py_INCREF(sha_pyobj);
3660 has160_pyobj = PyDict_GetItemString(d, "has160"); Py_INCREF(has160_pyobj);
3661 INSERT("GCMAC", gcmac_pytype);
3662 INSERT("GMAC", gmac_pytype);
3663 INSERT("GMACHash", gmhash_pytype);
3664 INSERT("gcmacs", gcmacs());
204d480b
MW		 3665 INSERT("Poly1305Class", poly1305cls_pytype);
3666 INSERT("poly1305", poly1305key_pytype);
3667 INSERT("Poly1305Hash", poly1305hash_pytype);
b35fdbe6 3668 INSERT("Keccak1600", kxvik_pytype);
6bd22b53
MW		 3669 INSERT("Shake", shake_pytype);
3670 INSERT("Shake128", shake128_pytype);
3671 INSERT("Shake256", shake256_pytype);
03ed9abb
MW		 3672 INSERT("GCPRP", gcprp_pytype);
3673 INSERT("GPRP", gprp_pytype);
3674 INSERT("gcprps", gcprps());
d7ab1bab 3675}
3676
3677/*----- That's all, folks -------------------------------------------------*/
Catacomb cryptographic library -- Python bindings