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*.c: Use the new `Py_TYPE' and `Py_SIZE' macros; define them if necessary.
[catacomb-python] / rand.c
CommitLineData
d7ab1bab 1/* -*-c-*-
2 *
d7ab1bab 3 * Random-number generators
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;
850a4b48 31#include "algorithms.h"
6640e060 32PRIVATE_SYMBOLS;
d7ab1bab 33
34/*----- Main code ---------------------------------------------------------*/
35
805a0f2b
MW		 36PyTypeObject *grand_pytype;
37static PyTypeObject *truerand_pytype;
38static PyTypeObject *lcrand_pytype, *fibrand_pytype;
39static PyTypeObject *dsarand_pytype, *bbs_pytype, *bbspriv_pytype;
40static PyTypeObject *sslprf_pytype, *tlsdx_pytype, *tlsprf_pytype;
d7ab1bab 41PyObject *rand_pyobj;
42
850a4b48
MW		 43static PyObject *gccrands_dict;
44
d7ab1bab 45static PyObject *grand_dopywrap(PyTypeObject *ty, grand *r, unsigned f)
46{
47 grand_pyobj *g;
48
49 g = (grand_pyobj *)ty->tp_alloc(ty, 0);
50 g->r = r;
51 g->f = f;
52 return ((PyObject *)g);
53}
54
55PyObject *grand_pywrap(grand *r, unsigned f)
56{
57 PyTypeObject *ty = grand_pytype;
850a4b48 58 PyObject *ob;
d7ab1bab 59
20441612
MW		 60 if (STRCMP(r->ops->name, ==, "rand")) ty = truerand_pytype;
61 else if (STRCMP(r->ops->name, ==, "lcrand")) ty = lcrand_pytype;
62 else if (STRCMP(r->ops->name, ==, "fibrand")) ty = fibrand_pytype;
63 else if (STRCMP(r->ops->name, ==, "dsarand")) ty = dsarand_pytype;
64 else if (STRCMP(r->ops->name, ==, "bbs")) ty = bbs_pytype;
65 else if (STRCMP(r->ops->name, ==, "sslprf")) ty = sslprf_pytype;
66 else if (STRCMP(r->ops->name, ==, "tlsdx")) ty = tlsdx_pytype;
67 else if (STRCMP(r->ops->name, ==, "tlsprf")) ty = tlsprf_pytype;
b115b0c0
MW		 68 else if ((ob = PyMapping_GetItemString
69 (gccrands_dict, (/*unconst*/ char *)r->ops->name)) != 0)
850a4b48 70 ty = (PyTypeObject *)ob;
d7ab1bab 71 return (grand_dopywrap(ty, r, f));
72}
73
74CONVFUNC(grand, grand *, GRAND_R)
75
d65d80d7
MW		 76static int grand_check(PyObject *me)
77{
78 if (!GRAND_R(me)) VALERR("random generator object is no longer valid");
79 return (0);
80end:
81 return (-1);
82}
83
7a75bb76 84static PyObject *grmeth_byte(PyObject *me)
d7ab1bab 85{
d65d80d7 86 if (grand_check(me)) return (0);
d7ab1bab 87 return (PyInt_FromLong(grand_byte(GRAND_R(me))));
88}
89
7a75bb76 90static PyObject *grmeth_word(PyObject *me)
d7ab1bab 91{
d65d80d7 92 if (grand_check(me)) return (0);
fbca05a1 93 return (getulong(grand_word(GRAND_R(me))));
d7ab1bab 94}
95
96static PyObject *grmeth_range(PyObject *me, PyObject *arg)
97{
98 PyObject *m;
99 mp *x = 0;
100 mp *y = 0;
101
102 if (!PyArg_ParseTuple(arg, "O:range", &m)) return (0);
d65d80d7 103 if (grand_check(me)) return (0);
d7ab1bab 104 if (PyInt_Check(m)) {
105 long mm = PyInt_AS_LONG(m);
cb08602a
MW		 106 if (mm <= 0)
107 goto notpos;
d7ab1bab 108 if (mm <= 0xffffffff)
109 return (PyInt_FromLong(grand_range(GRAND_R(me), mm)));
110 }
111 if ((x = getmp(m)) == 0)
112 goto end;
cb08602a
MW		 113 if (!MP_POSP(x))
114 goto notpos;
d7ab1bab 115 y = mprand_range(MP_NEW, x, GRAND_R(me), 0);
116 MP_DROP(x);
117 return (mp_pywrap(y));
cb08602a
MW		 118notpos:
119 VALERR("range must be strictly positive");
d7ab1bab 120end:
121 if (x) MP_DROP(x);
122 return (0);
123}
124
125static PyObject *grmeth_mp(PyObject *me, PyObject *arg, PyObject *kw)
126{
127 size_t l;
cb08602a 128 mpw o = 0;
827f89d7 129 static const char *const kwlist[] = { "bits", "or", 0 };
d7ab1bab 130
827f89d7 131 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&:mp", KWLIST,
d7ab1bab 132 convszt, &l, convmpw, &o))
133 goto end;
d65d80d7 134 if (grand_check(me)) return (0);
cb08602a 135 if (l < MPW_BITS && (o >> l)) VALERR("or mask too large");
d7ab1bab 136 return (mp_pywrap(mprand(MP_NEW, l, GRAND_R(me), o)));
137end:
138 return (0);
139}
140
141static PyObject *grmeth_block(PyObject *me, PyObject *arg)
142{
143 unsigned long n;
144 PyObject *rc = 0;
145
146 if (!PyArg_ParseTuple(arg, "O&:block", convulong, &n)) goto end;
d65d80d7 147 if (grand_check(me)) return (0);
d7ab1bab 148 rc = bytestring_pywrap(0, n);
149 grand_fill(GRAND_R(me), PyString_AS_STRING(rc), n);
150end:
151 return (rc);
152}
153
154static int checkop(grand *r, unsigned op, const char *what)
155{
d65d80d7 156 if (r->ops->misc(r, GRAND_CHECK, op)) return (0);
d7ab1bab 157 PyErr_Format(PyExc_TypeError, "operation %s not supported", what);
158 return (-1);
159}
160
161static PyObject *grmeth_seedint(PyObject *me, PyObject *arg)
162{
163 int i;
164 grand *r = GRAND_R(me);
165 if (!PyArg_ParseTuple(arg, "i:seedint", &i) ||
d65d80d7 166 grand_check(me) || checkop(r, GRAND_SEEDINT, "seedint"))
d7ab1bab 167 goto end;
168 r->ops->misc(r, GRAND_SEEDINT, i);
169 RETURN_ME;
170end:
171 return (0);
172}
173
174static PyObject *grmeth_seedword(PyObject *me, PyObject *arg)
175{
176 uint32 u;
177 grand *r = GRAND_R(me);
178 if (!PyArg_ParseTuple(arg, "O&:seedword", convu32, &u) ||
d65d80d7 179 grand_check(me) || checkop(r, GRAND_SEEDUINT32, "seedword"))
d7ab1bab 180 goto end;
181 r->ops->misc(r, GRAND_SEEDUINT32, u);
182 RETURN_ME;
183end:
184 return (0);
185}
186
187static PyObject *grmeth_seedblock(PyObject *me, PyObject *arg)
188{
189 char *p;
6b54260d 190 Py_ssize_t n;
d7ab1bab 191 grand *r = GRAND_R(me);
192 if (!PyArg_ParseTuple(arg, "s#:seedblock", &p, &n) ||
d65d80d7 193 grand_check(me) || checkop(r, GRAND_SEEDBLOCK, "seedblock"))
d7ab1bab 194 goto end;
195 r->ops->misc(r, GRAND_SEEDBLOCK, p, (size_t)n);
196 RETURN_ME;
197end:
198 return (0);
199}
200
201static PyObject *grmeth_seedmp(PyObject *me, PyObject *arg)
202{
203 PyObject *x;
204 mp *xx;
205 grand *r = GRAND_R(me);
206 if (!PyArg_ParseTuple(arg, "O:seedmp", &x) ||
d65d80d7 207 grand_check(me) || checkop(r, GRAND_SEEDMP, "seedmp") ||
d7ab1bab 208 (xx = getmp(x)) == 0)
209 goto end;
210 r->ops->misc(r, GRAND_SEEDMP, xx);
211 MP_DROP(xx);
212 RETURN_ME;
213end:
214 return (0);
215}
216
217static PyObject *grmeth_seedrand(PyObject *me, PyObject *arg, PyObject *kw)
218{
827f89d7 219 static const char *const kwlist[] = { "rng", 0 };
d7ab1bab 220 grand *r = GRAND_R(me);
221 grand *rr = &rand_global;
827f89d7 222 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:seedrand", KWLIST,
d7ab1bab 223 convgrand, &rr) ||
d65d80d7 224 grand_check(me) || checkop(r, GRAND_SEEDRAND, "seedrand"))
d7ab1bab 225 goto end;
226 r->ops->misc(r, GRAND_SEEDRAND, rr);
227 RETURN_ME;
228end:
229 return (0);
230}
231
232static PyObject *grmeth_mask(PyObject *me, PyObject *arg)
233{
234 grand *r = GRAND_R(me);
235 char *p, *q;
6b54260d 236 Py_ssize_t sz;
d7ab1bab 237 PyObject *rc;
238
239 if (!PyArg_ParseTuple(arg, "s#:mask", &p, &sz)) return (0);
d65d80d7 240 if (grand_check(me)) return (0);
d7ab1bab 241 rc = bytestring_pywrap(0, sz);
242 q = PyString_AS_STRING(rc);
243 GR_FILL(r, q, sz);
244 while (sz--) *q++ ^= *p++;
245 return (rc);
246}
247
248static void grand_pydealloc(PyObject *me)
249{
250 grand_pyobj *g = (grand_pyobj *)me;
d65d80d7 251 if ((g->f & f_freeme) && g->r) GR_DESTROY(g->r);
3aa33042 252 FREEOBJ(me);
d7ab1bab 253}
254
255static PyObject *grget_name(PyObject *me, void *hunoz)
d65d80d7 256 { return (grand_check(me) ? 0 : PyString_FromString(GRAND_R(me)->ops->name)); }
d7ab1bab 257
258static PyObject *grget_cryptop(PyObject *me, void *hunoz)
d65d80d7 259 { return (grand_check(me) ? 0 : getbool(GRAND_R(me)->ops->f & GRAND_CRYPTO)); }
d7ab1bab 260
637b9140 261static const PyGetSetDef grand_pygetset[] = {
d7ab1bab 262#define GETSETNAME(op, name) gr##op##_##name
263 GET (name, "R.name -> name of this kind of generator")
264 GET (cryptop, "R.cryptop -> flag: cryptographically strong?")
265#undef GETSETNAME
266 { 0 }
267};
268
637b9140 269static const PyMethodDef grand_pymethods[] = {
d7ab1bab 270#define METHNAME(name) grmeth_##name
7a75bb76
MW		 271 NAMETH(byte, "R.byte() -> BYTE")
272 NAMETH(word, "R.word() -> WORD")
d7ab1bab 273 METH (block, "R.block(N) -> STRING")
986bcc44 274 KWMETH(mp, "R.mp(bits, [or = 0]) -> MP")
d7ab1bab 275 METH (range, "R.range(MAX) -> INT")
276 METH (mask, "R.mask(STR) -> STR")
277 METH (seedint, "R.seedint(I)")
278 METH (seedword, "R.seedword(I)")
279 METH (seedblock, "R.seedblock(BYTES)")
280 METH (seedmp, "R.seedmp(X)")
281 KWMETH(seedrand, "R.seedrand(RR)")
282#undef METHNAME
283 { 0 }
284};
285
ddd4720b 286static const PyTypeObject grand_pytype_skel = {
6d4db0bf 287 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 288 "GRand", /* @tp_name@ */
d7ab1bab 289 sizeof(grand_pyobj), /* @tp_basicsize@ */
290 0, /* @tp_itemsize@ */
291
292 grand_pydealloc, /* @tp_dealloc@ */
293 0, /* @tp_print@ */
294 0, /* @tp_getattr@ */
295 0, /* @tp_setattr@ */
296 0, /* @tp_compare@ */
297 0, /* @tp_repr@ */
298 0, /* @tp_as_number@ */
299 0, /* @tp_as_sequence@ */
300 0, /* @tp_as_mapping@ */
301 0, /* @tp_hash@ */
302 0, /* @tp_call@ */
303 0, /* @tp_str@ */
304 0, /* @tp_getattro@ */
305 0, /* @tp_setattro@ */
306 0, /* @tp_as_buffer@ */
307 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
308 Py_TPFLAGS_BASETYPE,
309
310 /* @tp_doc@ */
ef783f91 311 "Generic random number source.",
d7ab1bab 312
313 0, /* @tp_traverse@ */
314 0, /* @tp_clear@ */
315 0, /* @tp_richcompare@ */
316 0, /* @tp_weaklistoffset@ */
317 0, /* @tp_iter@ */
963a6148 318 0, /* @tp_iternext@ */
637b9140 319 PYMETHODS(grand), /* @tp_methods@ */
d7ab1bab 320 0, /* @tp_members@ */
637b9140 321 PYGETSET(grand), /* @tp_getset@ */
d7ab1bab 322 0, /* @tp_base@ */
323 0, /* @tp_dict@ */
324 0, /* @tp_descr_get@ */
325 0, /* @tp_descr_set@ */
326 0, /* @tp_dictoffset@ */
327 0, /* @tp_init@ */
328 PyType_GenericAlloc, /* @tp_alloc@ */
329 abstract_pynew, /* @tp_new@ */
3aa33042 330 0, /* @tp_free@ */
d7ab1bab 331 0 /* @tp_is_gc@ */
332};
333
334static PyObject *lcrand_pynew(PyTypeObject *me, PyObject *arg, PyObject *kw)
335{
336 uint32 n = 0;
827f89d7
MW		 337 static const char *const kwlist[] = { "seed", 0 };
338 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:new", KWLIST, convu32, &n))
d7ab1bab 339 return (0);
340 return (grand_dopywrap(lcrand_pytype, lcrand_create(n), f_freeme));
341}
342
ddd4720b 343static const PyTypeObject lcrand_pytype_skel = {
6d4db0bf 344 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 345 "LCRand", /* @tp_name@ */
d7ab1bab 346 sizeof(grand_pyobj), /* @tp_basicsize@ */
347 0, /* @tp_itemsize@ */
348
349 grand_pydealloc, /* @tp_dealloc@ */
350 0, /* @tp_print@ */
351 0, /* @tp_getattr@ */
352 0, /* @tp_setattr@ */
353 0, /* @tp_compare@ */
354 0, /* @tp_repr@ */
355 0, /* @tp_as_number@ */
356 0, /* @tp_as_sequence@ */
357 0, /* @tp_as_mapping@ */
358 0, /* @tp_hash@ */
359 0, /* @tp_call@ */
360 0, /* @tp_str@ */
361 0, /* @tp_getattro@ */
362 0, /* @tp_setattro@ */
363 0, /* @tp_as_buffer@ */
364 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
365 Py_TPFLAGS_BASETYPE,
366
367 /* @tp_doc@ */
ef783f91 368 "LCRand([seed = 0]): linear congruential generator.",
d7ab1bab 369
370 0, /* @tp_traverse@ */
371 0, /* @tp_clear@ */
372 0, /* @tp_richcompare@ */
373 0, /* @tp_weaklistoffset@ */
374 0, /* @tp_iter@ */
963a6148 375 0, /* @tp_iternext@ */
d7ab1bab 376 0, /* @tp_methods@ */
377 0, /* @tp_members@ */
378 0, /* @tp_getset@ */
379 0, /* @tp_base@ */
380 0, /* @tp_dict@ */
381 0, /* @tp_descr_get@ */
382 0, /* @tp_descr_set@ */
383 0, /* @tp_dictoffset@ */
384 0, /* @tp_init@ */
385 PyType_GenericAlloc, /* @tp_alloc@ */
386 lcrand_pynew, /* @tp_new@ */
3aa33042 387 0, /* @tp_free@ */
d7ab1bab 388 0 /* @tp_is_gc@ */
389};
390
391static PyObject *fibrand_pynew(PyTypeObject *me, PyObject *arg, PyObject *kw)
392{
393 uint32 n = 0;
827f89d7
MW		 394 static const char *const kwlist[] = { "seed", 0 };
395 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:new", KWLIST, convu32, &n))
d7ab1bab 396 return (0);
397 return (grand_dopywrap(fibrand_pytype, fibrand_create(n), f_freeme));
398}
399
ddd4720b 400static const PyTypeObject fibrand_pytype_skel = {
6d4db0bf 401 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 402 "FibRand", /* @tp_name@ */
d7ab1bab 403 sizeof(grand_pyobj), /* @tp_basicsize@ */
404 0, /* @tp_itemsize@ */
405
406 grand_pydealloc, /* @tp_dealloc@ */
407 0, /* @tp_print@ */
408 0, /* @tp_getattr@ */
409 0, /* @tp_setattr@ */
410 0, /* @tp_compare@ */
411 0, /* @tp_repr@ */
412 0, /* @tp_as_number@ */
413 0, /* @tp_as_sequence@ */
414 0, /* @tp_as_mapping@ */
415 0, /* @tp_hash@ */
416 0, /* @tp_call@ */
417 0, /* @tp_str@ */
418 0, /* @tp_getattro@ */
419 0, /* @tp_setattro@ */
420 0, /* @tp_as_buffer@ */
421 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
422 Py_TPFLAGS_BASETYPE,
423
424 /* @tp_doc@ */
ef783f91 425 "FibRand([seed = 0]): Fibonacci generator.",
d7ab1bab 426
427 0, /* @tp_traverse@ */
428 0, /* @tp_clear@ */
429 0, /* @tp_richcompare@ */
430 0, /* @tp_weaklistoffset@ */
431 0, /* @tp_iter@ */
963a6148 432 0, /* @tp_iternext@ */
d7ab1bab 433 0, /* @tp_methods@ */
434 0, /* @tp_members@ */
435 0, /* @tp_getset@ */
436 0, /* @tp_base@ */
437 0, /* @tp_dict@ */
438 0, /* @tp_descr_get@ */
439 0, /* @tp_descr_set@ */
440 0, /* @tp_dictoffset@ */
441 0, /* @tp_init@ */
442 PyType_GenericAlloc, /* @tp_alloc@ */
443 fibrand_pynew, /* @tp_new@ */
3aa33042 444 0, /* @tp_free@ */
d7ab1bab 445 0 /* @tp_is_gc@ */
446};
447
448/*----- True random generator ---------------------------------------------*/
449
7a75bb76
MW		 450static PyObject *trmeth_gate(PyObject *me)
451 { grand *r = GRAND_R(me); r->ops->misc(GRAND_R(me), RAND_GATE); RETURN_ME; }
d7ab1bab 452
7a75bb76
MW		 453static PyObject *trmeth_stretch(PyObject *me)
454 { grand *r = GRAND_R(me); r->ops->misc(r, RAND_STRETCH); RETURN_ME; }
d7ab1bab 455
850a4b48
MW		 456static PyObject *trmeth_add(PyObject *me, PyObject *arg)
457{
458 grand *r = GRAND_R(me);
6b54260d 459 char *p; Py_ssize_t n; unsigned goodbits;
850a4b48
MW		 460 if (!PyArg_ParseTuple(arg, "s#O&:add", &p, &n, convuint, &goodbits))
461 return (0);
462 r->ops->misc(r, RAND_ADD, p, (size_t)n, goodbits);
463 RETURN_ME;
464}
465
d7ab1bab 466static PyObject *trmeth_key(PyObject *me, PyObject *arg)
467{
468 grand *r = GRAND_R(me);
6b54260d 469 char *p; Py_ssize_t n;
d7ab1bab 470 if (!PyArg_ParseTuple(arg, "s#:key", &p, &n)) return (0);
850a4b48 471 r->ops->misc(r, RAND_KEY, p, (size_t)n);
d7ab1bab 472 RETURN_ME;
473}
474
475static PyObject *trmeth_seed(PyObject *me, PyObject *arg)
476{
477 grand *r = GRAND_R(me);
478 unsigned u;
479 if (!PyArg_ParseTuple(arg, "O&:seed", convuint, &u)) return (0);
480 if (u > RAND_IBITS) VALERR("pointlessly large");
481 r->ops->misc(r, RAND_SEED, u);
482 RETURN_ME;
483end:
484 return (0);
485}
486
7a75bb76
MW		 487static PyObject *trmeth_timer(PyObject *me)
488 { grand *r = GRAND_R(me); r->ops->misc(r, RAND_TIMER); RETURN_ME; }
d7ab1bab 489
490static PyObject *truerand_pynew(PyTypeObject *ty,
491 PyObject *arg, PyObject *kw)
492{
827f89d7 493 static const char *const kwlist[] = { 0 };
d7ab1bab 494 grand *r;
495 PyObject *rc = 0;
62f9f6c4 496 if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", KWLIST)) goto end;
d7ab1bab 497 r = rand_create();
498 r->ops->misc(r, RAND_NOISESRC, &noise_source);
499 r->ops->misc(r, RAND_SEED, 160);
500 rc = grand_dopywrap(ty, r, f_freeme);
501end:
502 return (rc);
503}
504
637b9140 505static const PyMethodDef truerand_pymethods[] = {
d7ab1bab 506#define METHNAME(name) trmeth_##name
7a75bb76
MW		 507 NAMETH(gate, "R.gate()")
508 NAMETH(stretch, "R.stretch()")
d7ab1bab 509 METH (key, "R.key(BYTES)")
510 METH (seed, "R.seed(NBITS)")
850a4b48 511 METH (add, "R.add(BYTES, GOODBITS")
7a75bb76 512 NAMETH(timer, "R.timer()")
d7ab1bab 513#undef METHNAME
514 { 0 }
515};
516
517static PyObject *trget_goodbits(PyObject *me, void *hunoz)
518{
519 grand *r = GRAND_R(me);
520 return (PyInt_FromLong(r->ops->misc(r, RAND_GOODBITS)));
521}
522
637b9140 523static const PyGetSetDef truerand_pygetset[] = {
d7ab1bab 524#define GETSETNAME(op, name) tr##op##_##name
b2687a0a 525 GET (goodbits, "R.goodbits -> good bits of entropy remaining")
d7ab1bab 526#undef GETSETNAME
527 { 0 }
528};
529
ddd4720b 530static const PyTypeObject truerand_pytype_skel = {
6d4db0bf 531 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 532 "TrueRand", /* @tp_name@ */
d7ab1bab 533 sizeof(grand_pyobj), /* @tp_basicsize@ */
534 0, /* @tp_itemsize@ */
535
536 grand_pydealloc, /* @tp_dealloc@ */
537 0, /* @tp_print@ */
538 0, /* @tp_getattr@ */
539 0, /* @tp_setattr@ */
540 0, /* @tp_compare@ */
541 0, /* @tp_repr@ */
542 0, /* @tp_as_number@ */
543 0, /* @tp_as_sequence@ */
544 0, /* @tp_as_mapping@ */
545 0, /* @tp_hash@ */
546 0, /* @tp_call@ */
547 0, /* @tp_str@ */
548 0, /* @tp_getattro@ */
549 0, /* @tp_setattro@ */
550 0, /* @tp_as_buffer@ */
551 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
552 Py_TPFLAGS_BASETYPE,
553
554 /* @tp_doc@ */
ef783f91 555 "TrueRand(): true random number source.",
d7ab1bab 556
557 0, /* @tp_traverse@ */
558 0, /* @tp_clear@ */
559 0, /* @tp_richcompare@ */
560 0, /* @tp_weaklistoffset@ */
561 0, /* @tp_iter@ */
963a6148 562 0, /* @tp_iternext@ */
637b9140 563 PYMETHODS(truerand), /* @tp_methods@ */
d7ab1bab 564 0, /* @tp_members@ */
637b9140 565 PYGETSET(truerand), /* @tp_getset@ */
d7ab1bab 566 0, /* @tp_base@ */
567 0, /* @tp_dict@ */
568 0, /* @tp_descr_get@ */
569 0, /* @tp_descr_set@ */
570 0, /* @tp_dictoffset@ */
571 0, /* @tp_init@ */
572 PyType_GenericAlloc, /* @tp_alloc@ */
573 truerand_pynew, /* @tp_new@ */
3aa33042 574 0, /* @tp_free@ */
d7ab1bab 575 0 /* @tp_is_gc@ */
576};
577
850a4b48
MW		 578/*----- Generators from symmetric encryption algorithms -------------------*/
579
35e5469a 580static PyTypeObject *gccrand_pytype, *gcrand_pytype, *gclatinrand_pytype;
850a4b48
MW		 581
582typedef grand *gcrand_func(const void *, size_t sz);
583typedef grand *gcirand_func(const void *, size_t sz, uint32);
3f4f64b8 584typedef grand *gcnrand_func(const void *, size_t sz, const void *);
6bd22b53
MW		 585typedef grand *gcshakerand_func(const void *, size_t,
586 const void *, size_t,
587 const void *, size_t);
588typedef grand *gcshafuncrand_func(const void *, size_t,
589 const void *, size_t);
590typedef grand *gckmacrand_func(const void *, size_t, const void *, size_t);
850a4b48
MW		 591typedef struct gccrand_info {
592 const char *name;
593 const octet *keysz;
594 unsigned f;
3f4f64b8 595 size_t noncesz;
850a4b48
MW		 596 gcrand_func *func;
597} gccrand_info;
598
34825452
MW		 599#define RNGF_MASK 255u
600
601enum {
602 RNG_PLAIN = 0,
603 RNG_SEAL,
604 RNG_LATIN,
605 RNG_SHAKE,
606 RNG_KMAC
607};
78f06cd3 608
850a4b48
MW		 609typedef struct gccrand_pyobj {
610 PyHeapTypeObject ty;
611 const gccrand_info *info;
612} gccrand_pyobj;
613#define GCCRAND_INFO(o) (((gccrand_pyobj *)(o))->info)
614
3f4f64b8 615#define GCCRAND_DEF(name, ksz, func, f, nsz) \
850a4b48 616 static const gccrand_info func##_info = \
3f4f64b8 617 { name, ksz, f, nsz, (gcrand_func *)func };
850a4b48
MW		 618RNGS(GCCRAND_DEF)
619
620static const gccrand_info *const gcrandtab[] = {
3f4f64b8 621#define GCCRAND_ENTRY(name, ksz, func, f, nsz) &func##_info,
850a4b48
MW		 622 RNGS(GCCRAND_ENTRY)
623 0
624};
625
626static PyObject *gcrand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
627{
628 const gccrand_info *info = GCCRAND_INFO(ty);
827f89d7 629 static const char *const kwlist[] = { "key", 0 };
850a4b48 630 char *k;
6b54260d 631 Py_ssize_t n;
850a4b48 632
827f89d7 633 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", KWLIST, &k, &n))
850a4b48
MW		 634 goto end;
635 if (keysz(n, info->keysz) != n) VALERR("bad key length");
636 return (grand_dopywrap(ty, info->func(k, n), f_freeme));
637end:
b2687a0a 638 return (0);
850a4b48
MW		 639}
640
641static PyObject *gcirand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
642{
643 const gccrand_info *info = GCCRAND_INFO(ty);
644 uint32 i = 0;
827f89d7 645 static const char *const kwlist[] = { "key", "i", 0 };
850a4b48 646 char *k;
6b54260d 647 Py_ssize_t n;
850a4b48 648
827f89d7 649 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#O&:new", KWLIST,
850a4b48
MW		 650 &k, &n, convu32, &i))
651 goto end;
652 if (keysz(n, info->keysz) != n) VALERR("bad key length");
653 return (grand_dopywrap(ty,
654 ((gcirand_func *)info->func)(k, n, i),
655 f_freeme));
656end:
b2687a0a 657 return (0);
850a4b48
MW		 658}
659
3f4f64b8
MW		 660static PyObject *gcnrand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
661{
662 const gccrand_info *info = GCCRAND_INFO(ty);
827f89d7 663 static const char *const kwlist[] = { "key", "nonce", 0 };
3f4f64b8 664 char *k, *n;
6b54260d 665 Py_ssize_t ksz, nsz;
3f4f64b8 666
827f89d7 667 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#:new", KWLIST,
3f4f64b8
MW		 668 &k, &ksz, &n, &nsz))
669 goto end;
670 if (keysz(ksz, info->keysz) != ksz) VALERR("bad key length");
671 if (nsz != info->noncesz) VALERR("bad nonce length");
672 return (grand_dopywrap(ty,
673 ((gcnrand_func *)info->func)(k, ksz, n),
674 f_freeme));
675end:
676 return (0);
677}
678
6bd22b53
MW		 679static PyObject *gcshakyrand_pynew(PyTypeObject *ty,
680 PyObject *arg, PyObject *kw)
681{
682 const gccrand_info *info = GCCRAND_INFO(ty);
827f89d7
MW		 683 static const char
684 *const kwlist_shake[] = { "key", "func", "perso", 0 },
685 *const kwlist_func[] = { "key", "perso", 0 };
6bd22b53
MW		 686 char *k, *f = 0, *p = 0;
687 Py_ssize_t ksz, fsz = 0, psz = 0;
688
689 if ((info->f&RNGF_MASK) == RNG_SHAKE
827f89d7
MW		 690 ? !PyArg_ParseTupleAndKeywords(arg, kw, "s#|s#s#:new",
691 (/*unconst*/ char **)kwlist_shake,
6bd22b53 692 &k, &ksz, &f, &fsz, &p, &psz)
827f89d7
MW		 693 : !PyArg_ParseTupleAndKeywords(arg, kw, "s#|s#:new",
694 (/*unconst*/ char **)kwlist_func,
6bd22b53
MW		 695 &k, &ksz, &p, &psz))
696 goto end;
697 if (keysz(ksz, info->keysz) != ksz) VALERR("bad key length");
698 return (grand_dopywrap(ty,
699 (info->f&RNGF_MASK) == RNG_SHAKE
700 ? ((gcshakerand_func *)info->func)(f, fsz,
701 p, psz,
702 k, ksz)
703 : ((gcshafuncrand_func *)info->func)(p, psz,
704 k, ksz),
705 f_freeme));
706end:
707 return (0);
708}
709
850a4b48
MW		 710static PyObject *gccrand_pywrap(const gccrand_info *info)
711{
712 gccrand_pyobj *g = newtype(gccrand_pytype, 0, info->name);
713 g->info = info;
24b3d57b 714 g->ty.ht_type.tp_basicsize = sizeof(grand_pyobj);
34825452
MW		 715 switch (info->f&RNGF_MASK) {
716 case RNG_LATIN: g->ty.ht_type.tp_base = gclatinrand_pytype; break;
717 default: g->ty.ht_type.tp_base = gcrand_pytype; break;
718 }
35e5469a 719 Py_INCREF(g->ty.ht_type.tp_base);
24b3d57b
MW		 720 g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT |
721 Py_TPFLAGS_BASETYPE |
722 Py_TPFLAGS_HEAPTYPE);
723 g->ty.ht_type.tp_alloc = PyType_GenericAlloc;
724 g->ty.ht_type.tp_free = 0;
34825452
MW		 725 switch (info->f&RNGF_MASK) {
726 case RNG_LATIN: g->ty.ht_type.tp_new = gcnrand_pynew; break;
727 case RNG_SEAL: g->ty.ht_type.tp_new = gcirand_pynew; break;
6bd22b53
MW		 728 case RNG_SHAKE: case RNG_KMAC:
729 g->ty.ht_type.tp_new = gcshakyrand_pynew; break;
34825452
MW		 730 default: g->ty.ht_type.tp_new = gcrand_pynew; break;
731 }
dc075750 732 typeready(&g->ty.ht_type);
850a4b48
MW		 733 return ((PyObject *)g);
734}
735
736static PyObject *gccrget_name(PyObject *me, void *hunoz)
737 { return (PyString_FromString(GCCRAND_INFO(me)->name)); }
738static PyObject *gccrget_keysz(PyObject *me, void *hunoz)
739 { return (keysz_pywrap(GCCRAND_INFO(me)->keysz)); }
740
7a75bb76 741static PyObject *gclrmeth_tell(PyObject *me)
35e5469a
MW		 742{
743 grand *r = GRAND_R(me);
744 PyObject *rc = 0;
745 kludge64 off;
746
35e5469a
MW		 747 r->ops->misc(r, SALSA20_TELLU64, &off);
748 rc = getk64(off);
749 return (rc);
750}
751
752static PyObject *gclrmeth_seek(PyObject *me, PyObject *arg)
753{
754 grand *r = GRAND_R(me);
755 kludge64 off;
756
757 if (!PyArg_ParseTuple(arg, "O&:seek", convk64, &off)) return (0);
758 r->ops->misc(r, SALSA20_SEEKU64, off);
759 RETURN_ME;
760}
761
637b9140 762static const PyGetSetDef gccrand_pygetset[] = {
850a4b48 763#define GETSETNAME(op, name) gccr##op##_##name
ef783f91
MW		 764 GET (keysz, "CR.keysz -> acceptable key sizes")
765 GET (name, "CR.name -> name of this kind of generator")
850a4b48
MW		 766#undef GETSETNAME
767 { 0 }
768};
769
637b9140 770static const PyMethodDef gclatinrand_pymethods[] = {
35e5469a 771#define METHNAME(name) gclrmeth_##name
7a75bb76 772 NAMETH(tell, "R.tell() -> OFF")
35e5469a
MW		 773 METH (seek, "R.seek(OFF)")
774#undef METHNAME
775 { 0 }
776};
777
ddd4720b 778static const PyTypeObject gccrand_pytype_skel = {
850a4b48 779 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 780 "GCCRand", /* @tp_name@ */
850a4b48
MW		 781 sizeof(gccrand_pyobj), /* @tp_basicsize@ */
782 0, /* @tp_itemsize@ */
783
784 0, /* @tp_dealloc@ */
785 0, /* @tp_print@ */
786 0, /* @tp_getattr@ */
787 0, /* @tp_setattr@ */
788 0, /* @tp_compare@ */
789 0, /* @tp_repr@ */
790 0, /* @tp_as_number@ */
791 0, /* @tp_as_sequence@ */
792 0, /* @tp_as_mapping@ */
793 0, /* @tp_hash@ */
794 0, /* @tp_call@ */
795 0, /* @tp_str@ */
796 0, /* @tp_getattro@ */
797 0, /* @tp_setattro@ */
798 0, /* @tp_as_buffer@ */
799 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
800 Py_TPFLAGS_BASETYPE,
801
802 /* @tp_doc@ */
ef783f91 803 "Metaclass for symmetric crypto-based generators.",
850a4b48
MW		 804
805 0, /* @tp_traverse@ */
806 0, /* @tp_clear@ */
807 0, /* @tp_richcompare@ */
808 0, /* @tp_weaklistoffset@ */
809 0, /* @tp_iter@ */
810 0, /* @tp_iternext@ */
811 0, /* @tp_methods@ */
812 0, /* @tp_members@ */
637b9140 813 PYGETSET(gccrand), /* @tp_getset@ */
850a4b48
MW		 814 0, /* @tp_base@ */
815 0, /* @tp_dict@ */
816 0, /* @tp_descr_get@ */
817 0, /* @tp_descr_set@ */
818 0, /* @tp_dictoffset@ */
819 0, /* @tp_init@ */
820 PyType_GenericAlloc, /* @tp_alloc@ */
821 abstract_pynew, /* @tp_new@ */
822 0, /* @tp_free@ */
823 0 /* @tp_is_gc@ */
824};
825
ddd4720b 826static const PyTypeObject gcrand_pytype_skel = {
850a4b48 827 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 828 "GCRand", /* @tp_name@ */
850a4b48
MW		 829 sizeof(grand_pyobj), /* @tp_basicsize@ */
830 0, /* @tp_itemsize@ */
831
832 grand_pydealloc, /* @tp_dealloc@ */
833 0, /* @tp_print@ */
834 0, /* @tp_getattr@ */
835 0, /* @tp_setattr@ */
836 0, /* @tp_compare@ */
837 0, /* @tp_repr@ */
838 0, /* @tp_as_number@ */
839 0, /* @tp_as_sequence@ */
840 0, /* @tp_as_mapping@ */
841 0, /* @tp_hash@ */
842 0, /* @tp_call@ */
843 0, /* @tp_str@ */
844 0, /* @tp_getattro@ */
845 0, /* @tp_setattro@ */
846 0, /* @tp_as_buffer@ */
847 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
848 Py_TPFLAGS_BASETYPE,
849
850 /* @tp_doc@ */
ef783f91 851 "Abstract base class for symmetric crypto-based generators.",
850a4b48
MW		 852
853 0, /* @tp_traverse@ */
854 0, /* @tp_clear@ */
855 0, /* @tp_richcompare@ */
856 0, /* @tp_weaklistoffset@ */
857 0, /* @tp_iter@ */
858 0, /* @tp_iternext@ */
859 0, /* @tp_methods@ */
860 0, /* @tp_members@ */
861 0, /* @tp_getset@ */
862 0, /* @tp_base@ */
863 0, /* @tp_dict@ */
864 0, /* @tp_descr_get@ */
865 0, /* @tp_descr_set@ */
866 0, /* @tp_dictoffset@ */
867 0, /* @tp_init@ */
868 PyType_GenericAlloc, /* @tp_alloc@ */
869 abstract_pynew, /* @tp_new@ */
870 0, /* @tp_free@ */
871 0 /* @tp_is_gc@ */
872};
873
ddd4720b 874static const PyTypeObject gclatinrand_pytype_skel = {
35e5469a
MW		 875 PyObject_HEAD_INIT(0) 0, /* Header */
876 "GCLatinRand", /* @tp_name@ */
877 sizeof(grand_pyobj), /* @tp_basicsize@ */
878 0, /* @tp_itemsize@ */
879
880 grand_pydealloc, /* @tp_dealloc@ */
881 0, /* @tp_print@ */
882 0, /* @tp_getattr@ */
883 0, /* @tp_setattr@ */
884 0, /* @tp_compare@ */
885 0, /* @tp_repr@ */
886 0, /* @tp_as_number@ */
887 0, /* @tp_as_sequence@ */
888 0, /* @tp_as_mapping@ */
889 0, /* @tp_hash@ */
890 0, /* @tp_call@ */
891 0, /* @tp_str@ */
892 0, /* @tp_getattro@ */
893 0, /* @tp_setattro@ */
894 0, /* @tp_as_buffer@ */
895 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
896 Py_TPFLAGS_BASETYPE,
897
898 /* @tp_doc@ */
ef783f91 899 "Abstract base class for symmetric crypto-based generators.",
35e5469a
MW		 900
901 0, /* @tp_traverse@ */
902 0, /* @tp_clear@ */
903 0, /* @tp_richcompare@ */
904 0, /* @tp_weaklistoffset@ */
905 0, /* @tp_iter@ */
906 0, /* @tp_iternext@ */
637b9140 907 PYMETHODS(gclatinrand), /* @tp_methods@ */
35e5469a
MW		 908 0, /* @tp_members@ */
909 0, /* @tp_getset@ */
910 0, /* @tp_base@ */
911 0, /* @tp_dict@ */
912 0, /* @tp_descr_get@ */
913 0, /* @tp_descr_set@ */
914 0, /* @tp_dictoffset@ */
915 0, /* @tp_init@ */
916 PyType_GenericAlloc, /* @tp_alloc@ */
917 abstract_pynew, /* @tp_new@ */
918 0, /* @tp_free@ */
919 0 /* @tp_is_gc@ */
920};
921
d7ab1bab 922/*----- SSL and TLS generators --------------------------------------------*/
923
924static PyObject *sslprf_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
925{
926 char *k, *s;
927 int ksz, ssz;
928 const gchash *hco = &md5, *hci = &sha;
929 PyObject *rc = 0;
827f89d7 930 static const char *const kwlist[] = { "key", "seed", "ohash", "ihash", 0 };
d7ab1bab 931
827f89d7 932 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#|O&O&:new", KWLIST,
d7ab1bab 933 &k, &ksz, &s, &ssz,
934 convgchash, &hco, convgchash, &hci))
935 goto end;
936 rc = grand_dopywrap(ty, sslprf_rand(hco, hci, k, ksz, s, ssz), f_freeme);
937end:
938 return (rc);
939}
940
941static PyObject *tlsdx_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
942{
943 char *k, *s;
944 int ksz, ssz;
945 const gcmac *mc = &sha_hmac;
946 PyObject *rc = 0;
827f89d7 947 static const char *const kwlist[] = { "key", "seed", "mac", 0 };
d7ab1bab 948
827f89d7 949 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#|O&:new", KWLIST,
d7ab1bab 950 &k, &ksz, &s, &ssz,
951 convgcmac, &mc))
952 goto end;
953 rc = grand_dopywrap(ty, tlsdx_rand(mc, k, ksz, s, ssz), f_freeme);
954end:
955 return (rc);
956}
957
958static PyObject *tlsprf_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
959{
960 char *k, *s;
961 int ksz, ssz;
962 const gcmac *mcl = &md5_hmac, *mcr = &sha_hmac;
963 PyObject *rc = 0;
827f89d7 964 static const char *const kwlist[] = { "key", "seed", "lmac", "rmac", 0 };
d7ab1bab 965
827f89d7 966 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#|O&O&:new", KWLIST,
d7ab1bab 967 &k, &ksz, &s, &ssz,
968 convgcmac, &mcl, convgcmac, &mcr))
969 goto end;
970 rc = grand_dopywrap(ty, tlsprf_rand(mcl, mcr, k, ksz, s, ssz), f_freeme);
971end:
972 return (rc);
973}
974
ddd4720b 975static const PyTypeObject sslprf_pytype_skel = {
6d4db0bf 976 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 977 "SSLRand", /* @tp_name@ */
d7ab1bab 978 sizeof(grand_pyobj), /* @tp_basicsize@ */
979 0, /* @tp_itemsize@ */
980
981 grand_pydealloc, /* @tp_dealloc@ */
982 0, /* @tp_print@ */
983 0, /* @tp_getattr@ */
984 0, /* @tp_setattr@ */
985 0, /* @tp_compare@ */
986 0, /* @tp_repr@ */
987 0, /* @tp_as_number@ */
988 0, /* @tp_as_sequence@ */
989 0, /* @tp_as_mapping@ */
990 0, /* @tp_hash@ */
991 0, /* @tp_call@ */
992 0, /* @tp_str@ */
993 0, /* @tp_getattro@ */
994 0, /* @tp_setattro@ */
995 0, /* @tp_as_buffer@ */
996 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
997 Py_TPFLAGS_BASETYPE,
998
999 /* @tp_doc@ */
ef783f91
MW		 1000 "SSLRand(KEY, SEED, [ohash = md5], [ihash = sha]):\n"
1001 " RNG for SSL master secret.",
d7ab1bab 1002
1003 0, /* @tp_traverse@ */
1004 0, /* @tp_clear@ */
1005 0, /* @tp_richcompare@ */
1006 0, /* @tp_weaklistoffset@ */
1007 0, /* @tp_iter@ */
963a6148 1008 0, /* @tp_iternext@ */
d7ab1bab 1009 0, /* @tp_methods@ */
1010 0, /* @tp_members@ */
1011 0, /* @tp_getset@ */
1012 0, /* @tp_base@ */
1013 0, /* @tp_dict@ */
1014 0, /* @tp_descr_get@ */
1015 0, /* @tp_descr_set@ */
1016 0, /* @tp_dictoffset@ */
1017 0, /* @tp_init@ */
1018 PyType_GenericAlloc, /* @tp_alloc@ */
1019 sslprf_pynew, /* @tp_new@ */
3aa33042 1020 0, /* @tp_free@ */
d7ab1bab 1021 0 /* @tp_is_gc@ */
1022};
1023
ddd4720b 1024static const PyTypeObject tlsdx_pytype_skel = {
6d4db0bf 1025 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1026 "TLSDataExpansion", /* @tp_name@ */
d7ab1bab 1027 sizeof(grand_pyobj), /* @tp_basicsize@ */
1028 0, /* @tp_itemsize@ */
1029
1030 grand_pydealloc, /* @tp_dealloc@ */
1031 0, /* @tp_print@ */
1032 0, /* @tp_getattr@ */
1033 0, /* @tp_setattr@ */
1034 0, /* @tp_compare@ */
1035 0, /* @tp_repr@ */
1036 0, /* @tp_as_number@ */
1037 0, /* @tp_as_sequence@ */
1038 0, /* @tp_as_mapping@ */
1039 0, /* @tp_hash@ */
1040 0, /* @tp_call@ */
1041 0, /* @tp_str@ */
1042 0, /* @tp_getattro@ */
1043 0, /* @tp_setattro@ */
1044 0, /* @tp_as_buffer@ */
1045 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1046 Py_TPFLAGS_BASETYPE,
1047
1048 /* @tp_doc@ */
ef783f91
MW		 1049 "TLSDataExpansion(KEY, SEED, [mac = sha_hmac]):\n"
1050 " TLS data expansion function.",
d7ab1bab 1051
1052 0, /* @tp_traverse@ */
1053 0, /* @tp_clear@ */
1054 0, /* @tp_richcompare@ */
1055 0, /* @tp_weaklistoffset@ */
1056 0, /* @tp_iter@ */
963a6148 1057 0, /* @tp_iternext@ */
d7ab1bab 1058 0, /* @tp_methods@ */
1059 0, /* @tp_members@ */
1060 0, /* @tp_getset@ */
1061 0, /* @tp_base@ */
1062 0, /* @tp_dict@ */
1063 0, /* @tp_descr_get@ */
1064 0, /* @tp_descr_set@ */
1065 0, /* @tp_dictoffset@ */
1066 0, /* @tp_init@ */
1067 PyType_GenericAlloc, /* @tp_alloc@ */
1068 tlsdx_pynew, /* @tp_new@ */
3aa33042 1069 0, /* @tp_free@ */
d7ab1bab 1070 0 /* @tp_is_gc@ */
1071};
1072
ddd4720b 1073static const PyTypeObject tlsprf_pytype_skel = {
6d4db0bf 1074 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1075 "TLSPRF", /* @tp_name@ */
d7ab1bab 1076 sizeof(grand_pyobj), /* @tp_basicsize@ */
1077 0, /* @tp_itemsize@ */
1078
1079 grand_pydealloc, /* @tp_dealloc@ */
1080 0, /* @tp_print@ */
1081 0, /* @tp_getattr@ */
1082 0, /* @tp_setattr@ */
1083 0, /* @tp_compare@ */
1084 0, /* @tp_repr@ */
1085 0, /* @tp_as_number@ */
1086 0, /* @tp_as_sequence@ */
1087 0, /* @tp_as_mapping@ */
1088 0, /* @tp_hash@ */
1089 0, /* @tp_call@ */
1090 0, /* @tp_str@ */
1091 0, /* @tp_getattro@ */
1092 0, /* @tp_setattro@ */
1093 0, /* @tp_as_buffer@ */
1094 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1095 Py_TPFLAGS_BASETYPE,
1096
1097 /* @tp_doc@ */
ef783f91
MW		 1098 "TLSPRF(KEY, SEED, [lmac = md5_hmac], [rmac = sha_hmac]):\n"
1099 " TLS pseudorandom function.",
d7ab1bab 1100
1101 0, /* @tp_traverse@ */
1102 0, /* @tp_clear@ */
1103 0, /* @tp_richcompare@ */
1104 0, /* @tp_weaklistoffset@ */
1105 0, /* @tp_iter@ */
963a6148 1106 0, /* @tp_iternext@ */
d7ab1bab 1107 0, /* @tp_methods@ */
1108 0, /* @tp_members@ */
1109 0, /* @tp_getset@ */
1110 0, /* @tp_base@ */
1111 0, /* @tp_dict@ */
1112 0, /* @tp_descr_get@ */
1113 0, /* @tp_descr_set@ */
1114 0, /* @tp_dictoffset@ */
1115 0, /* @tp_init@ */
1116 PyType_GenericAlloc, /* @tp_alloc@ */
1117 tlsprf_pynew, /* @tp_new@ */
3aa33042 1118 0, /* @tp_free@ */
d7ab1bab 1119 0 /* @tp_is_gc@ */
1120};
1121
1122/*----- DSA generator -----------------------------------------------------*/
1123
1124static PyObject *dsarand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
1125{
1126 char *p;
1127 int sz;
1128 PyObject *rc = 0;
827f89d7 1129 static const char *const kwlist[] = { "seed", 0 };
d7ab1bab 1130
827f89d7 1131 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", KWLIST, &p, &sz))
d7ab1bab 1132 goto end;
1133 rc = grand_dopywrap(ty, dsarand_create(p, sz), f_freeme);
1134end:
98963817 1135 return (rc);
d7ab1bab 1136}
1137
1138static PyObject *drget_seed(PyObject *me, void *hunoz)
1139{
1140 grand *r = GRAND_R(me);
1141 int n = r->ops->misc(r, DSARAND_SEEDSZ);
1142 PyObject *rc = bytestring_pywrap(0, n);
1143 r->ops->misc(r, DSARAND_GETSEED, PyString_AS_STRING(rc));
1144 return (rc);
1145}
1146
637b9140 1147static const PyGetSetDef dsarand_pygetset[] = {
d7ab1bab 1148#define GETSETNAME(op, name) dr##op##_##name
1149 GET (seed, "R.seed -> current generator seed")
1150#undef GETSETNAME
1151 { 0 }
1152};
1153
ddd4720b 1154static const PyTypeObject dsarand_pytype_skel = {
6d4db0bf 1155 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1156 "DSARand", /* @tp_name@ */
d7ab1bab 1157 sizeof(grand_pyobj), /* @tp_basicsize@ */
1158 0, /* @tp_itemsize@ */
1159
1160 grand_pydealloc, /* @tp_dealloc@ */
1161 0, /* @tp_print@ */
1162 0, /* @tp_getattr@ */
1163 0, /* @tp_setattr@ */
1164 0, /* @tp_compare@ */
1165 0, /* @tp_repr@ */
1166 0, /* @tp_as_number@ */
1167 0, /* @tp_as_sequence@ */
1168 0, /* @tp_as_mapping@ */
1169 0, /* @tp_hash@ */
1170 0, /* @tp_call@ */
1171 0, /* @tp_str@ */
1172 0, /* @tp_getattro@ */
1173 0, /* @tp_setattro@ */
1174 0, /* @tp_as_buffer@ */
1175 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1176 Py_TPFLAGS_BASETYPE,
1177
1178 /* @tp_doc@ */
ef783f91 1179 "DSARand(SEED): pseudorandom number generator for DSA parameters.",
d7ab1bab 1180
1181 0, /* @tp_traverse@ */
1182 0, /* @tp_clear@ */
1183 0, /* @tp_richcompare@ */
1184 0, /* @tp_weaklistoffset@ */
1185 0, /* @tp_iter@ */
963a6148 1186 0, /* @tp_iternext@ */
d7ab1bab 1187 0, /* @tp_methods@ */
1188 0, /* @tp_members@ */
637b9140 1189 PYGETSET(dsarand), /* @tp_getset@ */
d7ab1bab 1190 0, /* @tp_base@ */
1191 0, /* @tp_dict@ */
1192 0, /* @tp_descr_get@ */
1193 0, /* @tp_descr_set@ */
1194 0, /* @tp_dictoffset@ */
1195 0, /* @tp_init@ */
1196 PyType_GenericAlloc, /* @tp_alloc@ */
1197 dsarand_pynew, /* @tp_new@ */
3aa33042 1198 0, /* @tp_free@ */
d7ab1bab 1199 0 /* @tp_is_gc@ */
1200};
1201
1202/*----- Blum-Blum-Shub generator ------------------------------------------*/
1203
1204static PyObject *bbs_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
1205{
1206 mp *n = 0, *x = MP_TWO;
1207 PyObject *rc = 0;
827f89d7 1208 static const char *const kwlist[] = { "n", "x", 0 };
d7ab1bab 1209
827f89d7 1210 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&:new", KWLIST,
d7ab1bab 1211 convmp, &n, convmp, &x))
1212 goto end;
1213 rc = grand_dopywrap(ty, bbs_rand(n, x), f_freeme);
1214end:
1215 mp_drop(n);
1216 mp_drop(x);
1217 return (rc);
1218}
1219
7a75bb76
MW		 1220static PyObject *bbsmeth_step(PyObject *me)
1221 { grand *r = GRAND_R(me); r->ops->misc(r, BBS_STEP); RETURN_ME; }
d7ab1bab 1222
1223static PyObject *bbsmeth_bits(PyObject *me, PyObject *arg)
1224{
1225 grand *r = GRAND_R(me); unsigned n; uint32 w;
1226 if (!PyArg_ParseTuple(arg, "O&:bits", convuint, &n)) goto end;
1227 if (n > 32) VALERR("can't get more than 32 bits");
fbca05a1 1228 r->ops->misc(r, BBS_BITS, n, &w); return (getulong(w));
d7ab1bab 1229end:
1230 return (0);
1231}
1232
7a75bb76
MW		 1233static PyObject *bbsmeth_wrap(PyObject *me)
1234 { grand *r = GRAND_R(me); r->ops->misc(r, BBS_WRAP); RETURN_ME; }
d7ab1bab 1235
1236static PyObject *bbsget_n(PyObject *me, void *hunoz)
1237{
1238 mp *x = MP_NEW; grand *r = GRAND_R(me);
1239 r->ops->misc(r, BBS_MOD, &x); return (mp_pywrap(x));
1240}
1241
1242static PyObject *bbsget_x(PyObject *me, void *hunoz)
1243{
1244 mp *x = MP_NEW; grand *r = GRAND_R(me);
1245 r->ops->misc(r, BBS_STATE, &x); return (mp_pywrap(x));
1246}
1247
1248static int bbsset_x(PyObject *me, PyObject *val, void *hunoz)
1249{
03e1fedf 1250 mp *x = 0; grand *r = GRAND_R(me); int rc = -1; if (!val) NIERR("__del__");
6a080b28
MW		 1251 if ((x = getmp(val)) == 0) goto end;
1252 r->ops->misc(r, BBS_SET, x); rc = 0;
d7ab1bab 1253 end: mp_drop(x); return (rc);
1254}
1255
1256static PyObject *bbsget_stepsz(PyObject *me, void *hunoz)
1257{
1258 grand *r = GRAND_R(me);
1259 return (PyInt_FromLong(r->ops->misc(r, BBS_STEPSZ)));
1260}
1261
637b9140 1262static const PyMethodDef bbs_pymethods[] = {
d7ab1bab 1263#define METHNAME(name) bbsmeth_##name
7a75bb76 1264 NAMETH(step, "R.step(): steps the generator (not useful)")
ef783f91 1265 METH (bits, "R.bits(N) -> W: returns N bits (<= 32) from the generator")
7a75bb76 1266 NAMETH(wrap, "R.wrap(): flushes unused bits in internal buffer")
d7ab1bab 1267#undef METHNAME
1268 { 0 }
1269};
1270
637b9140 1271static const PyGetSetDef bbs_pygetset[] = {
d7ab1bab 1272#define GETSETNAME(op, name) bbs##op##_##name
1273 GET (n, "R.n -> Blum modulus")
1274 GETSET(x, "R.x -> current seed value")
1275 GET (stepsz, "R.stepsz -> number of bits generated per step")
1276#undef GETSETNAME
1277 { 0 }
1278};
1279
ddd4720b 1280static const PyTypeObject bbs_pytype_skel = {
6d4db0bf 1281 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1282 "BlumBlumShub", /* @tp_name@ */
d7ab1bab 1283 sizeof(grand_pyobj), /* @tp_basicsize@ */
1284 0, /* @tp_itemsize@ */
1285
1286 grand_pydealloc, /* @tp_dealloc@ */
1287 0, /* @tp_print@ */
1288 0, /* @tp_getattr@ */
1289 0, /* @tp_setattr@ */
1290 0, /* @tp_compare@ */
1291 0, /* @tp_repr@ */
1292 0, /* @tp_as_number@ */
1293 0, /* @tp_as_sequence@ */
1294 0, /* @tp_as_mapping@ */
1295 0, /* @tp_hash@ */
1296 0, /* @tp_call@ */
1297 0, /* @tp_str@ */
1298 0, /* @tp_getattro@ */
1299 0, /* @tp_setattro@ */
1300 0, /* @tp_as_buffer@ */
1301 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1302 Py_TPFLAGS_BASETYPE,
1303
1304 /* @tp_doc@ */
ef783f91 1305 "BlumBlumShub(N, [x = 2]): Blum-Blum-Shub pseudorandom number generator.",
d7ab1bab 1306
1307 0, /* @tp_traverse@ */
1308 0, /* @tp_clear@ */
1309 0, /* @tp_richcompare@ */
1310 0, /* @tp_weaklistoffset@ */
1311 0, /* @tp_iter@ */
963a6148 1312 0, /* @tp_iternext@ */
637b9140 1313 PYMETHODS(bbs), /* @tp_methods@ */
d7ab1bab 1314 0, /* @tp_members@ */
637b9140 1315 PYGETSET(bbs), /* @tp_getset@ */
d7ab1bab 1316 0, /* @tp_base@ */
1317 0, /* @tp_dict@ */
1318 0, /* @tp_descr_get@ */
1319 0, /* @tp_descr_set@ */
1320 0, /* @tp_dictoffset@ */
1321 0, /* @tp_init@ */
1322 PyType_GenericAlloc, /* @tp_alloc@ */
1323 bbs_pynew, /* @tp_new@ */
3aa33042 1324 0, /* @tp_free@ */
d7ab1bab 1325 0 /* @tp_is_gc@ */
1326};
1327
1328typedef struct bbspriv_pyobj {
1329 grand_pyobj gr;
1330 bbs_priv bp;
1331} bbspriv_pyobj;
1332
1333#define BBSPRIV_BP(o) (&((bbspriv_pyobj *)(o))->bp)
1334
1335static PyObject *bbspriv_pynew(PyTypeObject *ty,
1336 PyObject *arg, PyObject *kw)
1337{
1338 mp *p = 0, *q = 0, *n = 0, *x = MP_TWO;
1339 bbspriv_pyobj *rc = 0;
827f89d7 1340 static const char *const kwlist[] = { "n", "p", "q", "seed", 0 };
d7ab1bab 1341
827f89d7 1342 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&O&O&O&:new", KWLIST,
d7ab1bab 1343 convmp, &n, convmp, &p, convmp, &q,
1344 convmp, &x))
1345 goto end;
1346 if (!n + !p + !q > 1) VALERR("must specify at least two of n, p, q");
1347 if (!n) n = mp_mul(MP_NEW, p, q);
1348 else if (!p) mp_div(&p, 0, n, q);
1349 else if (!q) mp_div(&q, 0, n, p);
1350 rc = (bbspriv_pyobj *)ty->tp_alloc(ty, 0);
1351 rc->gr.r = bbs_rand(n, x);
1352 rc->gr.f = f_freeme;
1353 rc->bp.p = MP_COPY(p);
1354 rc->bp.q = MP_COPY(q);
1355 rc->bp.n = MP_COPY(n);
1356end:
1357 mp_drop(p); mp_drop(q); mp_drop(n); mp_drop(x);
1358 return ((PyObject *)rc);
1359}
1360
b16009b0 1361static PyObject *bpmeth_generate(PyObject *me, PyObject *arg, PyObject *kw)
d7ab1bab 1362{
1363 bbs_priv bp = { 0 };
1364 mp *x = MP_TWO;
930d78e3
MW		 1365 struct excinfo exc = EXCINFO_INIT;
1366 pypgev evt = { { 0 } };
d7ab1bab 1367 unsigned nbits, n = 0;
1368 grand *r = &rand_global;
827f89d7 1369 static const char *const kwlist[] =
b16009b0 1370 { "nbits", "event", "rng", "nsteps", "seed", 0 };
d7ab1bab 1371 bbspriv_pyobj *rc = 0;
1372
930d78e3 1373 evt.exc = &exc;
b16009b0
MW		 1374 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&O&O&O&:generate", KWLIST,
1375 convuint, &nbits, convpgev, &evt,
d7ab1bab 1376 convgrand, &r, convuint, &n, convmp, &x))
1377 goto end;
930d78e3
MW		 1378 if (bbs_gen(&bp, nbits, r, n, evt.ev.proc, evt.ev.ctx))
1379 PGENERR(&exc);
d7ab1bab 1380 rc = PyObject_New(bbspriv_pyobj, bbspriv_pytype);
1381 rc->gr.r = bbs_rand(bp.n, x);
1382 rc->gr.f = f_freeme;
1383 rc->bp.p = MP_COPY(bp.p);
1384 rc->bp.q = MP_COPY(bp.q);
1385 rc->bp.n = MP_COPY(bp.n);
1386end:
1387 mp_drop(bp.p); mp_drop(bp.q); mp_drop(bp.n); mp_drop(x);
b2687a0a 1388 return ((PyObject *)rc);
d7ab1bab 1389}
1390
1391static void bbspriv_pydealloc(PyObject *me)
1392{
1393 bbs_priv *bp = BBSPRIV_BP(me);
1394 mp_drop(bp->n);
1395 mp_drop(bp->p);
1396 mp_drop(bp->q);
1397 grand_pydealloc(me);
1398}
1399
1400static PyObject *bpmeth_ff(PyObject *me, PyObject *arg)
1401{
1402 mp *n = 0; grand *r = GRAND_R(me); bbs_priv *bp = BBSPRIV_BP(me);
1403 if (!PyArg_ParseTuple(arg, "O&:ff", convmp, &n)) return (0);
1404 r->ops->misc(r, BBS_FF, bp, n); RETURN_ME;
1405}
1406
1407static PyObject *bpmeth_rew(PyObject *me, PyObject *arg)
1408{
1409 mp *n = 0; grand *r = GRAND_R(me); bbs_priv *bp = BBSPRIV_BP(me);
1410 if (!PyArg_ParseTuple(arg, "O&:rew", convmp, &n)) return (0);
1411 r->ops->misc(r, BBS_REW, bp, n); RETURN_ME;
1412}
1413
1414static PyObject *bpget_n(PyObject *me, void *hunoz)
1415 { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->n))); }
1416
1417static PyObject *bpget_p(PyObject *me, void *hunoz)
1418 { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->p))); }
1419
1420static PyObject *bpget_q(PyObject *me, void *hunoz)
1421 { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->q))); }
1422
637b9140 1423static const PyMethodDef bbspriv_pymethods[] = {
d7ab1bab 1424#define METHNAME(name) bpmeth_##name
ef783f91
MW		 1425 METH (ff, "R.ff(N): fast-forward N places")
1426 METH (rew, "R.rew(N): rewind N places")
b16009b0
MW		 1427 KWSMTH(generate, "generate(NBITS, [event = pgen_nullev], "
1428 "[rng = rand], [nsteps = 0], [seed = 2]) -> R")
d7ab1bab 1429#undef METHNAME
1430 { 0 }
1431};
1432
637b9140 1433static const PyGetSetDef bbspriv_pygetset[] = {
d7ab1bab 1434#define GETSETNAME(op, name) bp##op##_##name
b2687a0a
MW		 1435 GET (n, "R.n -> Blum modulus")
1436 GET (p, "R.p -> one of the factors of the modulus")
1437 GET (q, "R.q -> one of the factors of the modulus")
d7ab1bab 1438#undef GETSETNAME
1439 { 0 }
1440};
1441
ddd4720b 1442static const PyTypeObject bbspriv_pytype_skel = {
6d4db0bf 1443 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1444 "BBSPriv", /* @tp_name@ */
d7ab1bab 1445 sizeof(bbspriv_pyobj), /* @tp_basicsize@ */
1446 0, /* @tp_itemsize@ */
1447
1448 bbspriv_pydealloc, /* @tp_dealloc@ */
1449 0, /* @tp_print@ */
1450 0, /* @tp_getattr@ */
1451 0, /* @tp_setattr@ */
1452 0, /* @tp_compare@ */
1453 0, /* @tp_repr@ */
1454 0, /* @tp_as_number@ */
1455 0, /* @tp_as_sequence@ */
1456 0, /* @tp_as_mapping@ */
1457 0, /* @tp_hash@ */
1458 0, /* @tp_call@ */
1459 0, /* @tp_str@ */
1460 0, /* @tp_getattro@ */
1461 0, /* @tp_setattro@ */
1462 0, /* @tp_as_buffer@ */
1463 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1464 Py_TPFLAGS_BASETYPE,
1465
1466 /* @tp_doc@ */
ef783f91
MW		 1467 "BBSPriv(..., [seed = 2]): Blum-Blum-Shub, with private key.\n"
1468 " Keywords: n, p, q; must provide at least two",
d7ab1bab 1469
1470 0, /* @tp_traverse@ */
1471 0, /* @tp_clear@ */
1472 0, /* @tp_richcompare@ */
1473 0, /* @tp_weaklistoffset@ */
1474 0, /* @tp_iter@ */
963a6148 1475 0, /* @tp_iternext@ */
637b9140 1476 PYMETHODS(bbspriv), /* @tp_methods@ */
d7ab1bab 1477 0, /* @tp_members@ */
637b9140 1478 PYGETSET(bbspriv), /* @tp_getset@ */
d7ab1bab 1479 0, /* @tp_base@ */
1480 0, /* @tp_dict@ */
1481 0, /* @tp_descr_get@ */
1482 0, /* @tp_descr_set@ */
1483 0, /* @tp_dictoffset@ */
1484 0, /* @tp_init@ */
1485 PyType_GenericAlloc, /* @tp_alloc@ */
1486 bbspriv_pynew, /* @tp_new@ */
3aa33042 1487 0, /* @tp_free@ */
d7ab1bab 1488 0 /* @tp_is_gc@ */
1489};
1490
1491/*----- Global stuff ------------------------------------------------------*/
1492
cc36f2d8
MW		 1493static const struct nameval consts[] = {
1494 CONST(RAND_IBITS),
1495 { 0 }
1496};
1497
d7ab1bab 1498void rand_pyinit(void)
1499{
1500 INITTYPE(grand, root);
1501 INITTYPE(truerand, grand);
1502 INITTYPE(fibrand, grand);
1503 INITTYPE(lcrand, grand);
1504 INITTYPE(dsarand, grand);
1505 INITTYPE(bbs, grand);
1506 INITTYPE(bbspriv, bbs);
1507 INITTYPE(sslprf, grand);
1508 INITTYPE(tlsdx, grand);
1509 INITTYPE(tlsprf, grand);
850a4b48
MW		 1510 INITTYPE(gccrand, type);
1511 INITTYPE(gcrand, grand);
35e5469a 1512 INITTYPE(gclatinrand, gcrand);
d7ab1bab 1513 rand_noisesrc(RAND_GLOBAL, &noise_source);
1514 rand_seed(RAND_GLOBAL, 160);
d7ab1bab 1515}
1516
b115b0c0
MW		 1517static const char *crand_namefn(const void *p)
1518 { const gccrand_info *const *cls = p; return (*cls ? (*cls)->name : 0); }
1519static PyObject *crand_valfn(const void *p)
1520 { const gccrand_info *const *cls = p; return (gccrand_pywrap(*cls)); }
850a4b48 1521
d7ab1bab 1522void rand_pyinsert(PyObject *mod)
1523{
1524 INSERT("GRand", grand_pytype);
1525 INSERT("TrueRand", truerand_pytype);
1526 INSERT("LCRand", lcrand_pytype);
1527 INSERT("FibRand", fibrand_pytype);
1528 INSERT("SSLRand", sslprf_pytype);
1529 INSERT("TLSDataExpansion", tlsdx_pytype);
1530 INSERT("TLSPRF", tlsprf_pytype);
1531 INSERT("DSARand", dsarand_pytype);
1532 INSERT("BlumBlumShub", bbs_pytype);
1533 INSERT("BBSPriv", bbspriv_pytype);
850a4b48
MW		 1534 INSERT("GCCRand", gccrand_pytype);
1535 INSERT("GCRand", gcrand_pytype);
35e5469a 1536 INSERT("GCLatinRand", gclatinrand_pytype);
d7ab1bab 1537 rand_pyobj = grand_pywrap(&rand_global, 0); Py_INCREF(rand_pyobj);
b115b0c0
MW		 1538 gccrands_dict = make_algtab(gcrandtab, sizeof(gccrand_info *),
1539 crand_namefn, crand_valfn);
1540 INSERT("gccrands", gccrands_dict); Py_INCREF(gccrands_dict);
d7ab1bab 1541 INSERT("rand", rand_pyobj);
cc36f2d8 1542 setconstants(mod, consts);
d7ab1bab 1543}
1544
1545/*----- That's all, folks -------------------------------------------------*/
Catacomb cryptographic library -- Python bindings