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catacomb-python.h: Promote `util' to the head of the list.
[catacomb-python] / rand.c
CommitLineData
d7ab1bab 1/* -*-c-*-
d7ab1bab 2 *
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"
850a4b48 30#include "algorithms.h"
d7ab1bab 31
32/*----- Main code ---------------------------------------------------------*/
33
34PyTypeObject *grand_pytype, *truerand_pytype;
35PyTypeObject *lcrand_pytype, *fibrand_pytype;
36PyTypeObject *dsarand_pytype, *bbs_pytype, *bbspriv_pytype;
37PyTypeObject *sslprf_pytype, *tlsdx_pytype, *tlsprf_pytype;
38PyObject *rand_pyobj;
39
850a4b48
MW		 40static PyObject *gccrands_dict;
41
d7ab1bab 42static PyObject *grand_dopywrap(PyTypeObject *ty, grand *r, unsigned f)
43{
44 grand_pyobj *g;
45
46 g = (grand_pyobj *)ty->tp_alloc(ty, 0);
47 g->r = r;
48 g->f = f;
49 return ((PyObject *)g);
50}
51
52PyObject *grand_pywrap(grand *r, unsigned f)
53{
54 PyTypeObject *ty = grand_pytype;
850a4b48 55 PyObject *ob;
d7ab1bab 56
57 if (strcmp(r->ops->name, "rand") == 0) ty = truerand_pytype;
58 else if (strcmp(r->ops->name, "lcrand") == 0) ty = lcrand_pytype;
59 else if (strcmp(r->ops->name, "fibrand") == 0) ty = fibrand_pytype;
60 else if (strcmp(r->ops->name, "dsarand") == 0) ty = dsarand_pytype;
61 else if (strcmp(r->ops->name, "bbs") == 0) ty = bbs_pytype;
850a4b48
MW		 62 else if (strcmp(r->ops->name, "sslprf") == 0) ty = sslprf_pytype;
63 else if (strcmp(r->ops->name, "tlsdx") == 0) ty = tlsdx_pytype;
64 else if (strcmp(r->ops->name, "tlsprf") == 0) ty = tlsprf_pytype;
65 else if ((ob = PyDict_GetItemString(gccrands_dict, r->ops->name)) != 0)
66 ty = (PyTypeObject *)ob;
d7ab1bab 67 return (grand_dopywrap(ty, r, f));
68}
69
70CONVFUNC(grand, grand *, GRAND_R)
71
72static PyObject *grmeth_byte(PyObject *me, PyObject *arg)
73{
74 if (!PyArg_ParseTuple(arg, ":byte")) return (0);
75 return (PyInt_FromLong(grand_byte(GRAND_R(me))));
76}
77
78static PyObject *grmeth_word(PyObject *me, PyObject *arg)
79{
80 if (!PyArg_ParseTuple(arg, ":word")) return (0);
fbca05a1 81 return (getulong(grand_word(GRAND_R(me))));
d7ab1bab 82}
83
84static PyObject *grmeth_range(PyObject *me, PyObject *arg)
85{
86 PyObject *m;
87 mp *x = 0;
88 mp *y = 0;
89
90 if (!PyArg_ParseTuple(arg, "O:range", &m)) return (0);
91 if (PyInt_Check(m)) {
92 long mm = PyInt_AS_LONG(m);
93 if (mm < 0)
94 goto negative;
95 if (mm <= 0xffffffff)
96 return (PyInt_FromLong(grand_range(GRAND_R(me), mm)));
97 }
98 if ((x = getmp(m)) == 0)
99 goto end;
100 if (MP_NEGP(x))
101 goto negative;
102 y = mprand_range(MP_NEW, x, GRAND_R(me), 0);
103 MP_DROP(x);
104 return (mp_pywrap(y));
105negative:
106 TYERR("range must be nonnegative");
107end:
108 if (x) MP_DROP(x);
109 return (0);
110}
111
112static PyObject *grmeth_mp(PyObject *me, PyObject *arg, PyObject *kw)
113{
114 size_t l;
115 mpw o;
116 char *kwlist[] = { "bits", "or", 0 };
117
118 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&:mp", kwlist,
119 convszt, &l, convmpw, &o))
120 goto end;
121 return (mp_pywrap(mprand(MP_NEW, l, GRAND_R(me), o)));
122end:
123 return (0);
124}
125
126static PyObject *grmeth_block(PyObject *me, PyObject *arg)
127{
128 unsigned long n;
129 PyObject *rc = 0;
130
131 if (!PyArg_ParseTuple(arg, "O&:block", convulong, &n)) goto end;
132 rc = bytestring_pywrap(0, n);
133 grand_fill(GRAND_R(me), PyString_AS_STRING(rc), n);
134end:
135 return (rc);
136}
137
138static int checkop(grand *r, unsigned op, const char *what)
139{
140 if (r->ops->misc(r, GRAND_CHECK, op))
141 return (0);
142 PyErr_Format(PyExc_TypeError, "operation %s not supported", what);
143 return (-1);
144}
145
146static PyObject *grmeth_seedint(PyObject *me, PyObject *arg)
147{
148 int i;
149 grand *r = GRAND_R(me);
150 if (!PyArg_ParseTuple(arg, "i:seedint", &i) ||
151 checkop(r, GRAND_SEEDINT, "seedint"))
152 goto end;
153 r->ops->misc(r, GRAND_SEEDINT, i);
154 RETURN_ME;
155end:
156 return (0);
157}
158
159static PyObject *grmeth_seedword(PyObject *me, PyObject *arg)
160{
161 uint32 u;
162 grand *r = GRAND_R(me);
163 if (!PyArg_ParseTuple(arg, "O&:seedword", convu32, &u) ||
164 checkop(r, GRAND_SEEDUINT32, "seedword"))
165 goto end;
166 r->ops->misc(r, GRAND_SEEDUINT32, u);
167 RETURN_ME;
168end:
169 return (0);
170}
171
172static PyObject *grmeth_seedblock(PyObject *me, PyObject *arg)
173{
174 char *p;
175 int n;
176 grand *r = GRAND_R(me);
177 if (!PyArg_ParseTuple(arg, "s#:seedblock", &p, &n) ||
178 checkop(r, GRAND_SEEDBLOCK, "seedblock"))
179 goto end;
180 r->ops->misc(r, GRAND_SEEDBLOCK, p, (size_t)n);
181 RETURN_ME;
182end:
183 return (0);
184}
185
186static PyObject *grmeth_seedmp(PyObject *me, PyObject *arg)
187{
188 PyObject *x;
189 mp *xx;
190 grand *r = GRAND_R(me);
191 if (!PyArg_ParseTuple(arg, "O:seedmp", &x) ||
192 checkop(r, GRAND_SEEDMP, "seedmp") ||
193 (xx = getmp(x)) == 0)
194 goto end;
195 r->ops->misc(r, GRAND_SEEDMP, xx);
196 MP_DROP(xx);
197 RETURN_ME;
198end:
199 return (0);
200}
201
202static PyObject *grmeth_seedrand(PyObject *me, PyObject *arg, PyObject *kw)
203{
204 char *kwlist[] = { "rng", 0 };
205 grand *r = GRAND_R(me);
206 grand *rr = &rand_global;
207 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:seedrand", kwlist,
208 convgrand, &rr) ||
209 checkop(r, GRAND_SEEDRAND, "seedrand"))
210 goto end;
211 r->ops->misc(r, GRAND_SEEDRAND, rr);
212 RETURN_ME;
213end:
214 return (0);
215}
216
217static PyObject *grmeth_mask(PyObject *me, PyObject *arg)
218{
219 grand *r = GRAND_R(me);
220 char *p, *q;
221 int sz;
222 PyObject *rc;
223
224 if (!PyArg_ParseTuple(arg, "s#:mask", &p, &sz)) return (0);
225 rc = bytestring_pywrap(0, sz);
226 q = PyString_AS_STRING(rc);
227 GR_FILL(r, q, sz);
228 while (sz--) *q++ ^= *p++;
229 return (rc);
230}
231
232static void grand_pydealloc(PyObject *me)
233{
234 grand_pyobj *g = (grand_pyobj *)me;
235 if (g->f & f_freeme)
236 GR_DESTROY(g->r);
3aa33042 237 FREEOBJ(me);
d7ab1bab 238}
239
240static PyObject *grget_name(PyObject *me, void *hunoz)
241 { return (PyString_FromString(GRAND_R(me)->ops->name)); }
242
243static PyObject *grget_cryptop(PyObject *me, void *hunoz)
244 { return (getbool(GRAND_R(me)->ops->f & GRAND_CRYPTO)); }
245
246static PyGetSetDef grand_pygetset[] = {
247#define GETSETNAME(op, name) gr##op##_##name
248 GET (name, "R.name -> name of this kind of generator")
249 GET (cryptop, "R.cryptop -> flag: cryptographically strong?")
250#undef GETSETNAME
251 { 0 }
252};
253
254static PyMethodDef grand_pymethods[] = {
255#define METHNAME(name) grmeth_##name
256 METH (byte, "R.byte() -> BYTE")
257 METH (word, "R.word() -> WORD")
258 METH (block, "R.block(N) -> STRING")
259 KWMETH(mp, "R.mp(bits, or = 0) -> MP")
260 METH (range, "R.range(MAX) -> INT")
261 METH (mask, "R.mask(STR) -> STR")
262 METH (seedint, "R.seedint(I)")
263 METH (seedword, "R.seedword(I)")
264 METH (seedblock, "R.seedblock(BYTES)")
265 METH (seedmp, "R.seedmp(X)")
266 KWMETH(seedrand, "R.seedrand(RR)")
267#undef METHNAME
268 { 0 }
269};
270
271static PyTypeObject grand_pytype_skel = {
6d4db0bf 272 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 273 "GRand", /* @tp_name@ */
d7ab1bab 274 sizeof(grand_pyobj), /* @tp_basicsize@ */
275 0, /* @tp_itemsize@ */
276
277 grand_pydealloc, /* @tp_dealloc@ */
278 0, /* @tp_print@ */
279 0, /* @tp_getattr@ */
280 0, /* @tp_setattr@ */
281 0, /* @tp_compare@ */
282 0, /* @tp_repr@ */
283 0, /* @tp_as_number@ */
284 0, /* @tp_as_sequence@ */
285 0, /* @tp_as_mapping@ */
286 0, /* @tp_hash@ */
287 0, /* @tp_call@ */
288 0, /* @tp_str@ */
289 0, /* @tp_getattro@ */
290 0, /* @tp_setattro@ */
291 0, /* @tp_as_buffer@ */
292 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
293 Py_TPFLAGS_BASETYPE,
294
295 /* @tp_doc@ */
296"Generic random number source.",
297
298 0, /* @tp_traverse@ */
299 0, /* @tp_clear@ */
300 0, /* @tp_richcompare@ */
301 0, /* @tp_weaklistoffset@ */
302 0, /* @tp_iter@ */
963a6148 303 0, /* @tp_iternext@ */
d7ab1bab 304 grand_pymethods, /* @tp_methods@ */
305 0, /* @tp_members@ */
306 grand_pygetset, /* @tp_getset@ */
307 0, /* @tp_base@ */
308 0, /* @tp_dict@ */
309 0, /* @tp_descr_get@ */
310 0, /* @tp_descr_set@ */
311 0, /* @tp_dictoffset@ */
312 0, /* @tp_init@ */
313 PyType_GenericAlloc, /* @tp_alloc@ */
314 abstract_pynew, /* @tp_new@ */
3aa33042 315 0, /* @tp_free@ */
d7ab1bab 316 0 /* @tp_is_gc@ */
317};
318
319static PyObject *lcrand_pynew(PyTypeObject *me, PyObject *arg, PyObject *kw)
320{
321 uint32 n = 0;
322 char *kwlist[] = { "seed", 0 };
323 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:new", kwlist, convu32, &n))
324 return (0);
325 return (grand_dopywrap(lcrand_pytype, lcrand_create(n), f_freeme));
326}
327
328static PyTypeObject lcrand_pytype_skel = {
6d4db0bf 329 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 330 "LCRand", /* @tp_name@ */
d7ab1bab 331 sizeof(grand_pyobj), /* @tp_basicsize@ */
332 0, /* @tp_itemsize@ */
333
334 grand_pydealloc, /* @tp_dealloc@ */
335 0, /* @tp_print@ */
336 0, /* @tp_getattr@ */
337 0, /* @tp_setattr@ */
338 0, /* @tp_compare@ */
339 0, /* @tp_repr@ */
340 0, /* @tp_as_number@ */
341 0, /* @tp_as_sequence@ */
342 0, /* @tp_as_mapping@ */
343 0, /* @tp_hash@ */
344 0, /* @tp_call@ */
345 0, /* @tp_str@ */
346 0, /* @tp_getattro@ */
347 0, /* @tp_setattro@ */
348 0, /* @tp_as_buffer@ */
349 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
350 Py_TPFLAGS_BASETYPE,
351
352 /* @tp_doc@ */
353"Linear congruential generator.",
354
355 0, /* @tp_traverse@ */
356 0, /* @tp_clear@ */
357 0, /* @tp_richcompare@ */
358 0, /* @tp_weaklistoffset@ */
359 0, /* @tp_iter@ */
963a6148 360 0, /* @tp_iternext@ */
d7ab1bab 361 0, /* @tp_methods@ */
362 0, /* @tp_members@ */
363 0, /* @tp_getset@ */
364 0, /* @tp_base@ */
365 0, /* @tp_dict@ */
366 0, /* @tp_descr_get@ */
367 0, /* @tp_descr_set@ */
368 0, /* @tp_dictoffset@ */
369 0, /* @tp_init@ */
370 PyType_GenericAlloc, /* @tp_alloc@ */
371 lcrand_pynew, /* @tp_new@ */
3aa33042 372 0, /* @tp_free@ */
d7ab1bab 373 0 /* @tp_is_gc@ */
374};
375
376static PyObject *fibrand_pynew(PyTypeObject *me, PyObject *arg, PyObject *kw)
377{
378 uint32 n = 0;
379 char *kwlist[] = { "seed", 0 };
380 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:new", kwlist, convu32, &n))
381 return (0);
382 return (grand_dopywrap(fibrand_pytype, fibrand_create(n), f_freeme));
383}
384
385static PyTypeObject fibrand_pytype_skel = {
6d4db0bf 386 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 387 "FibRand", /* @tp_name@ */
d7ab1bab 388 sizeof(grand_pyobj), /* @tp_basicsize@ */
389 0, /* @tp_itemsize@ */
390
391 grand_pydealloc, /* @tp_dealloc@ */
392 0, /* @tp_print@ */
393 0, /* @tp_getattr@ */
394 0, /* @tp_setattr@ */
395 0, /* @tp_compare@ */
396 0, /* @tp_repr@ */
397 0, /* @tp_as_number@ */
398 0, /* @tp_as_sequence@ */
399 0, /* @tp_as_mapping@ */
400 0, /* @tp_hash@ */
401 0, /* @tp_call@ */
402 0, /* @tp_str@ */
403 0, /* @tp_getattro@ */
404 0, /* @tp_setattro@ */
405 0, /* @tp_as_buffer@ */
406 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
407 Py_TPFLAGS_BASETYPE,
408
409 /* @tp_doc@ */
410"Fibonacci generator.",
411
412 0, /* @tp_traverse@ */
413 0, /* @tp_clear@ */
414 0, /* @tp_richcompare@ */
415 0, /* @tp_weaklistoffset@ */
416 0, /* @tp_iter@ */
963a6148 417 0, /* @tp_iternext@ */
d7ab1bab 418 0, /* @tp_methods@ */
419 0, /* @tp_members@ */
420 0, /* @tp_getset@ */
421 0, /* @tp_base@ */
422 0, /* @tp_dict@ */
423 0, /* @tp_descr_get@ */
424 0, /* @tp_descr_set@ */
425 0, /* @tp_dictoffset@ */
426 0, /* @tp_init@ */
427 PyType_GenericAlloc, /* @tp_alloc@ */
428 fibrand_pynew, /* @tp_new@ */
3aa33042 429 0, /* @tp_free@ */
d7ab1bab 430 0 /* @tp_is_gc@ */
431};
432
433/*----- True random generator ---------------------------------------------*/
434
435static PyObject *trmeth_gate(PyObject *me, PyObject *arg)
436{
437 grand *r = GRAND_R(me);
438 if (!PyArg_ParseTuple(arg, ":gate")) return (0);
439 r->ops->misc(r, RAND_GATE);
440 RETURN_ME;
441}
442
443static PyObject *trmeth_stretch(PyObject *me, PyObject *arg)
444{
445 grand *r = GRAND_R(me);
446 if (!PyArg_ParseTuple(arg, ":stretch")) return (0);
447 r->ops->misc(r, RAND_STRETCH);
448 RETURN_ME;
449}
450
850a4b48
MW		 451static PyObject *trmeth_add(PyObject *me, PyObject *arg)
452{
453 grand *r = GRAND_R(me);
454 char *p; int n; unsigned goodbits;
455 if (!PyArg_ParseTuple(arg, "s#O&:add", &p, &n, convuint, &goodbits))
456 return (0);
457 r->ops->misc(r, RAND_ADD, p, (size_t)n, goodbits);
458 RETURN_ME;
459}
460
d7ab1bab 461static PyObject *trmeth_key(PyObject *me, PyObject *arg)
462{
463 grand *r = GRAND_R(me);
464 char *p; int n;
465 if (!PyArg_ParseTuple(arg, "s#:key", &p, &n)) return (0);
850a4b48 466 r->ops->misc(r, RAND_KEY, p, (size_t)n);
d7ab1bab 467 RETURN_ME;
468}
469
470static PyObject *trmeth_seed(PyObject *me, PyObject *arg)
471{
472 grand *r = GRAND_R(me);
473 unsigned u;
474 if (!PyArg_ParseTuple(arg, "O&:seed", convuint, &u)) return (0);
475 if (u > RAND_IBITS) VALERR("pointlessly large");
476 r->ops->misc(r, RAND_SEED, u);
477 RETURN_ME;
478end:
479 return (0);
480}
481
482static PyObject *trmeth_timer(PyObject *me, PyObject *arg)
483{
484 grand *r = GRAND_R(me);
485 if (!PyArg_ParseTuple(arg, ":timer")) return (0);
486 r->ops->misc(r, RAND_TIMER);
487 RETURN_ME;
488}
489
490static PyObject *truerand_pynew(PyTypeObject *ty,
491 PyObject *arg, PyObject *kw)
492{
493 char *kwlist[] = { 0 };
494 grand *r;
495 PyObject *rc = 0;
496 if (PyArg_ParseTupleAndKeywords(arg, kw, ":new", kwlist)) goto end;
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
505static PyMethodDef truerand_pymethods[] = {
506#define METHNAME(name) trmeth_##name
507 METH (gate, "R.gate()")
508 METH (stretch, "R.stretch()")
509 METH (key, "R.key(BYTES)")
510 METH (seed, "R.seed(NBITS)")
850a4b48 511 METH (add, "R.add(BYTES, GOODBITS")
d7ab1bab 512 METH (timer, "R.timer()")
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
523static PyGetSetDef truerand_pygetset[] = {
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
530static 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@ */
555"True random number source.",
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@ */
d7ab1bab 563 truerand_pymethods, /* @tp_methods@ */
564 0, /* @tp_members@ */
565 truerand_pygetset, /* @tp_getset@ */
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
580static PyTypeObject *gccrand_pytype, *gcrand_pytype;
581
582typedef grand *gcrand_func(const void *, size_t sz);
583typedef grand *gcirand_func(const void *, size_t sz, uint32);
584typedef struct gccrand_info {
585 const char *name;
586 const octet *keysz;
587 unsigned f;
588 gcrand_func *func;
589} gccrand_info;
590
591typedef struct gccrand_pyobj {
592 PyHeapTypeObject ty;
593 const gccrand_info *info;
594} gccrand_pyobj;
595#define GCCRAND_INFO(o) (((gccrand_pyobj *)(o))->info)
596
597#define GCCRAND_DEF(name, ksz, func, f) \
598 static const gccrand_info func##_info = \
599 { name, ksz, f, (gcrand_func *)func };
600RNGS(GCCRAND_DEF)
601
602static const gccrand_info *const gcrandtab[] = {
603#define GCCRAND_ENTRY(name, ksz, func, f) &func##_info,
604 RNGS(GCCRAND_ENTRY)
605 0
606};
607
608static PyObject *gcrand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
609{
610 const gccrand_info *info = GCCRAND_INFO(ty);
611 static char *kwlist[] = { "key", 0 };
612 char *k;
613 int n;
614
615 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &n))
616 goto end;
617 if (keysz(n, info->keysz) != n) VALERR("bad key length");
618 return (grand_dopywrap(ty, info->func(k, n), f_freeme));
619end:
b2687a0a 620 return (0);
850a4b48
MW		 621}
622
623static PyObject *gcirand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
624{
625 const gccrand_info *info = GCCRAND_INFO(ty);
626 uint32 i = 0;
627 static char *kwlist[] = { "key", "i", 0 };
628 char *k;
629 int n;
630
631 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#O&:new", kwlist,
632 &k, &n, convu32, &i))
633 goto end;
634 if (keysz(n, info->keysz) != n) VALERR("bad key length");
635 return (grand_dopywrap(ty,
636 ((gcirand_func *)info->func)(k, n, i),
637 f_freeme));
638end:
b2687a0a 639 return (0);
850a4b48
MW		 640}
641
642static PyObject *gccrand_pywrap(const gccrand_info *info)
643{
644 gccrand_pyobj *g = newtype(gccrand_pytype, 0, info->name);
645 g->info = info;
24b3d57b
MW		 646 g->ty.ht_type.tp_basicsize = sizeof(grand_pyobj);
647 g->ty.ht_type.tp_base = gcrand_pytype;
850a4b48 648 Py_INCREF(gcrand_pytype);
24b3d57b
MW		 649 g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT |
650 Py_TPFLAGS_BASETYPE |
651 Py_TPFLAGS_HEAPTYPE);
652 g->ty.ht_type.tp_alloc = PyType_GenericAlloc;
653 g->ty.ht_type.tp_free = 0;
850a4b48 654 if (info->f & RNGF_INT)
24b3d57b 655 g->ty.ht_type.tp_new = gcirand_pynew;
850a4b48 656 else
24b3d57b
MW		 657 g->ty.ht_type.tp_new = gcrand_pynew;
658 PyType_Ready(&g->ty.ht_type);
850a4b48
MW		 659 return ((PyObject *)g);
660}
661
662static PyObject *gccrget_name(PyObject *me, void *hunoz)
663 { return (PyString_FromString(GCCRAND_INFO(me)->name)); }
664static PyObject *gccrget_keysz(PyObject *me, void *hunoz)
665 { return (keysz_pywrap(GCCRAND_INFO(me)->keysz)); }
666
667static PyGetSetDef gccrand_pygetset[] = {
668#define GETSETNAME(op, name) gccr##op##_##name
669 GET (keysz, "CR.keysz -> acceptable key sizes")
670 GET (name, "CR.name -> name of this kind of generator")
671#undef GETSETNAME
672 { 0 }
673};
674
675static PyTypeObject gccrand_pytype_skel = {
676 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 677 "GCCRand", /* @tp_name@ */
850a4b48
MW		 678 sizeof(gccrand_pyobj), /* @tp_basicsize@ */
679 0, /* @tp_itemsize@ */
680
681 0, /* @tp_dealloc@ */
682 0, /* @tp_print@ */
683 0, /* @tp_getattr@ */
684 0, /* @tp_setattr@ */
685 0, /* @tp_compare@ */
686 0, /* @tp_repr@ */
687 0, /* @tp_as_number@ */
688 0, /* @tp_as_sequence@ */
689 0, /* @tp_as_mapping@ */
690 0, /* @tp_hash@ */
691 0, /* @tp_call@ */
692 0, /* @tp_str@ */
693 0, /* @tp_getattro@ */
694 0, /* @tp_setattro@ */
695 0, /* @tp_as_buffer@ */
696 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
697 Py_TPFLAGS_BASETYPE,
698
699 /* @tp_doc@ */
700"Metaclass for symmetric crypto-based generators.",
701
702 0, /* @tp_traverse@ */
703 0, /* @tp_clear@ */
704 0, /* @tp_richcompare@ */
705 0, /* @tp_weaklistoffset@ */
706 0, /* @tp_iter@ */
707 0, /* @tp_iternext@ */
708 0, /* @tp_methods@ */
709 0, /* @tp_members@ */
710 gccrand_pygetset, /* @tp_getset@ */
711 0, /* @tp_base@ */
712 0, /* @tp_dict@ */
713 0, /* @tp_descr_get@ */
714 0, /* @tp_descr_set@ */
715 0, /* @tp_dictoffset@ */
716 0, /* @tp_init@ */
717 PyType_GenericAlloc, /* @tp_alloc@ */
718 abstract_pynew, /* @tp_new@ */
719 0, /* @tp_free@ */
720 0 /* @tp_is_gc@ */
721};
722
723static PyTypeObject gcrand_pytype_skel = {
724 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 725 "GCRand", /* @tp_name@ */
850a4b48
MW		 726 sizeof(grand_pyobj), /* @tp_basicsize@ */
727 0, /* @tp_itemsize@ */
728
729 grand_pydealloc, /* @tp_dealloc@ */
730 0, /* @tp_print@ */
731 0, /* @tp_getattr@ */
732 0, /* @tp_setattr@ */
733 0, /* @tp_compare@ */
734 0, /* @tp_repr@ */
735 0, /* @tp_as_number@ */
736 0, /* @tp_as_sequence@ */
737 0, /* @tp_as_mapping@ */
738 0, /* @tp_hash@ */
739 0, /* @tp_call@ */
740 0, /* @tp_str@ */
741 0, /* @tp_getattro@ */
742 0, /* @tp_setattro@ */
743 0, /* @tp_as_buffer@ */
744 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
745 Py_TPFLAGS_BASETYPE,
746
747 /* @tp_doc@ */
748"Abstract base class for symmetric crypto-based generators.",
749
750 0, /* @tp_traverse@ */
751 0, /* @tp_clear@ */
752 0, /* @tp_richcompare@ */
753 0, /* @tp_weaklistoffset@ */
754 0, /* @tp_iter@ */
755 0, /* @tp_iternext@ */
756 0, /* @tp_methods@ */
757 0, /* @tp_members@ */
758 0, /* @tp_getset@ */
759 0, /* @tp_base@ */
760 0, /* @tp_dict@ */
761 0, /* @tp_descr_get@ */
762 0, /* @tp_descr_set@ */
763 0, /* @tp_dictoffset@ */
764 0, /* @tp_init@ */
765 PyType_GenericAlloc, /* @tp_alloc@ */
766 abstract_pynew, /* @tp_new@ */
767 0, /* @tp_free@ */
768 0 /* @tp_is_gc@ */
769};
770
d7ab1bab 771/*----- SSL and TLS generators --------------------------------------------*/
772
773static PyObject *sslprf_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
774{
775 char *k, *s;
776 int ksz, ssz;
777 const gchash *hco = &md5, *hci = &sha;
778 PyObject *rc = 0;
779 char *kwlist[] = { "key", "seed", "ohash", "ihash", 0 };
780
781 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#|O&O&:new", kwlist,
782 &k, &ksz, &s, &ssz,
783 convgchash, &hco, convgchash, &hci))
784 goto end;
785 rc = grand_dopywrap(ty, sslprf_rand(hco, hci, k, ksz, s, ssz), f_freeme);
786end:
787 return (rc);
788}
789
790static PyObject *tlsdx_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
791{
792 char *k, *s;
793 int ksz, ssz;
794 const gcmac *mc = &sha_hmac;
795 PyObject *rc = 0;
796 char *kwlist[] = { "key", "seed", "mac", 0 };
797
798 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#|O&:new", kwlist,
799 &k, &ksz, &s, &ssz,
800 convgcmac, &mc))
801 goto end;
802 rc = grand_dopywrap(ty, tlsdx_rand(mc, k, ksz, s, ssz), f_freeme);
803end:
804 return (rc);
805}
806
807static PyObject *tlsprf_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
808{
809 char *k, *s;
810 int ksz, ssz;
811 const gcmac *mcl = &md5_hmac, *mcr = &sha_hmac;
812 PyObject *rc = 0;
813 char *kwlist[] = { "key", "seed", "lmac", "rmac", 0 };
814
815 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#|O&O&:new", kwlist,
816 &k, &ksz, &s, &ssz,
817 convgcmac, &mcl, convgcmac, &mcr))
818 goto end;
819 rc = grand_dopywrap(ty, tlsprf_rand(mcl, mcr, k, ksz, s, ssz), f_freeme);
820end:
821 return (rc);
822}
823
824static PyTypeObject sslprf_pytype_skel = {
6d4db0bf 825 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 826 "SSLRand", /* @tp_name@ */
d7ab1bab 827 sizeof(grand_pyobj), /* @tp_basicsize@ */
828 0, /* @tp_itemsize@ */
829
830 grand_pydealloc, /* @tp_dealloc@ */
831 0, /* @tp_print@ */
832 0, /* @tp_getattr@ */
833 0, /* @tp_setattr@ */
834 0, /* @tp_compare@ */
835 0, /* @tp_repr@ */
836 0, /* @tp_as_number@ */
837 0, /* @tp_as_sequence@ */
838 0, /* @tp_as_mapping@ */
839 0, /* @tp_hash@ */
840 0, /* @tp_call@ */
841 0, /* @tp_str@ */
842 0, /* @tp_getattro@ */
843 0, /* @tp_setattro@ */
844 0, /* @tp_as_buffer@ */
845 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
846 Py_TPFLAGS_BASETYPE,
847
848 /* @tp_doc@ */
849"Random number generator for SSL master secret.",
850
851 0, /* @tp_traverse@ */
852 0, /* @tp_clear@ */
853 0, /* @tp_richcompare@ */
854 0, /* @tp_weaklistoffset@ */
855 0, /* @tp_iter@ */
963a6148 856 0, /* @tp_iternext@ */
d7ab1bab 857 0, /* @tp_methods@ */
858 0, /* @tp_members@ */
859 0, /* @tp_getset@ */
860 0, /* @tp_base@ */
861 0, /* @tp_dict@ */
862 0, /* @tp_descr_get@ */
863 0, /* @tp_descr_set@ */
864 0, /* @tp_dictoffset@ */
865 0, /* @tp_init@ */
866 PyType_GenericAlloc, /* @tp_alloc@ */
867 sslprf_pynew, /* @tp_new@ */
3aa33042 868 0, /* @tp_free@ */
d7ab1bab 869 0 /* @tp_is_gc@ */
870};
871
872static PyTypeObject tlsdx_pytype_skel = {
6d4db0bf 873 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 874 "TLSDataExpansion", /* @tp_name@ */
d7ab1bab 875 sizeof(grand_pyobj), /* @tp_basicsize@ */
876 0, /* @tp_itemsize@ */
877
878 grand_pydealloc, /* @tp_dealloc@ */
879 0, /* @tp_print@ */
880 0, /* @tp_getattr@ */
881 0, /* @tp_setattr@ */
882 0, /* @tp_compare@ */
883 0, /* @tp_repr@ */
884 0, /* @tp_as_number@ */
885 0, /* @tp_as_sequence@ */
886 0, /* @tp_as_mapping@ */
887 0, /* @tp_hash@ */
888 0, /* @tp_call@ */
889 0, /* @tp_str@ */
890 0, /* @tp_getattro@ */
891 0, /* @tp_setattro@ */
892 0, /* @tp_as_buffer@ */
893 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
894 Py_TPFLAGS_BASETYPE,
895
896 /* @tp_doc@ */
897"TLS data expansion function.",
898
899 0, /* @tp_traverse@ */
900 0, /* @tp_clear@ */
901 0, /* @tp_richcompare@ */
902 0, /* @tp_weaklistoffset@ */
903 0, /* @tp_iter@ */
963a6148 904 0, /* @tp_iternext@ */
d7ab1bab 905 0, /* @tp_methods@ */
906 0, /* @tp_members@ */
907 0, /* @tp_getset@ */
908 0, /* @tp_base@ */
909 0, /* @tp_dict@ */
910 0, /* @tp_descr_get@ */
911 0, /* @tp_descr_set@ */
912 0, /* @tp_dictoffset@ */
913 0, /* @tp_init@ */
914 PyType_GenericAlloc, /* @tp_alloc@ */
915 tlsdx_pynew, /* @tp_new@ */
3aa33042 916 0, /* @tp_free@ */
d7ab1bab 917 0 /* @tp_is_gc@ */
918};
919
920static PyTypeObject tlsprf_pytype_skel = {
6d4db0bf 921 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 922 "TLSPRF", /* @tp_name@ */
d7ab1bab 923 sizeof(grand_pyobj), /* @tp_basicsize@ */
924 0, /* @tp_itemsize@ */
925
926 grand_pydealloc, /* @tp_dealloc@ */
927 0, /* @tp_print@ */
928 0, /* @tp_getattr@ */
929 0, /* @tp_setattr@ */
930 0, /* @tp_compare@ */
931 0, /* @tp_repr@ */
932 0, /* @tp_as_number@ */
933 0, /* @tp_as_sequence@ */
934 0, /* @tp_as_mapping@ */
935 0, /* @tp_hash@ */
936 0, /* @tp_call@ */
937 0, /* @tp_str@ */
938 0, /* @tp_getattro@ */
939 0, /* @tp_setattro@ */
940 0, /* @tp_as_buffer@ */
941 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
942 Py_TPFLAGS_BASETYPE,
943
944 /* @tp_doc@ */
945"TLS pseudorandom function.",
946
947 0, /* @tp_traverse@ */
948 0, /* @tp_clear@ */
949 0, /* @tp_richcompare@ */
950 0, /* @tp_weaklistoffset@ */
951 0, /* @tp_iter@ */
963a6148 952 0, /* @tp_iternext@ */
d7ab1bab 953 0, /* @tp_methods@ */
954 0, /* @tp_members@ */
955 0, /* @tp_getset@ */
956 0, /* @tp_base@ */
957 0, /* @tp_dict@ */
958 0, /* @tp_descr_get@ */
959 0, /* @tp_descr_set@ */
960 0, /* @tp_dictoffset@ */
961 0, /* @tp_init@ */
962 PyType_GenericAlloc, /* @tp_alloc@ */
963 tlsprf_pynew, /* @tp_new@ */
3aa33042 964 0, /* @tp_free@ */
d7ab1bab 965 0 /* @tp_is_gc@ */
966};
967
968/*----- DSA generator -----------------------------------------------------*/
969
970static PyObject *dsarand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
971{
972 char *p;
973 int sz;
974 PyObject *rc = 0;
975 char *kwlist[] = { "seed", 0 };
976
977 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &p, &sz))
978 goto end;
979 rc = grand_dopywrap(ty, dsarand_create(p, sz), f_freeme);
980end:
98963817 981 return (rc);
d7ab1bab 982}
983
984static PyObject *drget_seed(PyObject *me, void *hunoz)
985{
986 grand *r = GRAND_R(me);
987 int n = r->ops->misc(r, DSARAND_SEEDSZ);
988 PyObject *rc = bytestring_pywrap(0, n);
989 r->ops->misc(r, DSARAND_GETSEED, PyString_AS_STRING(rc));
990 return (rc);
991}
992
993static PyGetSetDef dsarand_pygetset[] = {
994#define GETSETNAME(op, name) dr##op##_##name
995 GET (seed, "R.seed -> current generator seed")
996#undef GETSETNAME
997 { 0 }
998};
999
1000static PyTypeObject dsarand_pytype_skel = {
6d4db0bf 1001 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1002 "DSARand", /* @tp_name@ */
d7ab1bab 1003 sizeof(grand_pyobj), /* @tp_basicsize@ */
1004 0, /* @tp_itemsize@ */
1005
1006 grand_pydealloc, /* @tp_dealloc@ */
1007 0, /* @tp_print@ */
1008 0, /* @tp_getattr@ */
1009 0, /* @tp_setattr@ */
1010 0, /* @tp_compare@ */
1011 0, /* @tp_repr@ */
1012 0, /* @tp_as_number@ */
1013 0, /* @tp_as_sequence@ */
1014 0, /* @tp_as_mapping@ */
1015 0, /* @tp_hash@ */
1016 0, /* @tp_call@ */
1017 0, /* @tp_str@ */
1018 0, /* @tp_getattro@ */
1019 0, /* @tp_setattro@ */
1020 0, /* @tp_as_buffer@ */
1021 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1022 Py_TPFLAGS_BASETYPE,
1023
1024 /* @tp_doc@ */
1025"Pseudorandom number generator for constructing DSA parameters.",
1026
1027 0, /* @tp_traverse@ */
1028 0, /* @tp_clear@ */
1029 0, /* @tp_richcompare@ */
1030 0, /* @tp_weaklistoffset@ */
1031 0, /* @tp_iter@ */
963a6148 1032 0, /* @tp_iternext@ */
d7ab1bab 1033 0, /* @tp_methods@ */
1034 0, /* @tp_members@ */
1035 dsarand_pygetset, /* @tp_getset@ */
1036 0, /* @tp_base@ */
1037 0, /* @tp_dict@ */
1038 0, /* @tp_descr_get@ */
1039 0, /* @tp_descr_set@ */
1040 0, /* @tp_dictoffset@ */
1041 0, /* @tp_init@ */
1042 PyType_GenericAlloc, /* @tp_alloc@ */
1043 dsarand_pynew, /* @tp_new@ */
3aa33042 1044 0, /* @tp_free@ */
d7ab1bab 1045 0 /* @tp_is_gc@ */
1046};
1047
1048/*----- Blum-Blum-Shub generator ------------------------------------------*/
1049
1050static PyObject *bbs_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
1051{
1052 mp *n = 0, *x = MP_TWO;
1053 PyObject *rc = 0;
1054 char *kwlist[] = { "n", "x", 0 };
1055
1056 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&:new", kwlist,
1057 convmp, &n, convmp, &x))
1058 goto end;
1059 rc = grand_dopywrap(ty, bbs_rand(n, x), f_freeme);
1060end:
1061 mp_drop(n);
1062 mp_drop(x);
1063 return (rc);
1064}
1065
1066static PyObject *bbsmeth_step(PyObject *me, PyObject *arg)
1067{
1068 grand *r = GRAND_R(me); if (!PyArg_ParseTuple(arg, ":step")) return (0);
1069 r->ops->misc(r, BBS_STEP); RETURN_ME;
1070}
1071
1072static PyObject *bbsmeth_bits(PyObject *me, PyObject *arg)
1073{
1074 grand *r = GRAND_R(me); unsigned n; uint32 w;
1075 if (!PyArg_ParseTuple(arg, "O&:bits", convuint, &n)) goto end;
1076 if (n > 32) VALERR("can't get more than 32 bits");
fbca05a1 1077 r->ops->misc(r, BBS_BITS, n, &w); return (getulong(w));
d7ab1bab 1078end:
1079 return (0);
1080}
1081
1082static PyObject *bbsmeth_wrap(PyObject *me, PyObject *arg)
1083{
1084 grand *r = GRAND_R(me); if (!PyArg_ParseTuple(arg, ":wrap")) return (0);
1085 r->ops->misc(r, BBS_WRAP); RETURN_ME;
1086}
1087
1088static PyObject *bbsget_n(PyObject *me, void *hunoz)
1089{
1090 mp *x = MP_NEW; grand *r = GRAND_R(me);
1091 r->ops->misc(r, BBS_MOD, &x); return (mp_pywrap(x));
1092}
1093
1094static PyObject *bbsget_x(PyObject *me, void *hunoz)
1095{
1096 mp *x = MP_NEW; grand *r = GRAND_R(me);
1097 r->ops->misc(r, BBS_STATE, &x); return (mp_pywrap(x));
1098}
1099
1100static int bbsset_x(PyObject *me, PyObject *val, void *hunoz)
1101{
f368b46e 1102 mp *x = 0; grand *r = GRAND_R(me); int rc = -1; if (!x) NIERR("__del__");
d7ab1bab 1103 if ((x = getmp(val)) == 0) goto end; r->ops->misc(r, BBS_SET, x); rc = 0;
1104 end: mp_drop(x); return (rc);
1105}
1106
1107static PyObject *bbsget_stepsz(PyObject *me, void *hunoz)
1108{
1109 grand *r = GRAND_R(me);
1110 return (PyInt_FromLong(r->ops->misc(r, BBS_STEPSZ)));
1111}
1112
1113static PyMethodDef bbs_pymethods[] = {
1114#define METHNAME(name) bbsmeth_##name
1115 METH (step, "R.step(): steps the generator (not useful)")
1116 METH (bits, "R.bits(N) -> W: returns N bits (<= 32) from the generator")
1117 METH (wrap, "R.wrap(): flushes unused bits in internal buffer")
1118#undef METHNAME
1119 { 0 }
1120};
1121
1122static PyGetSetDef bbs_pygetset[] = {
1123#define GETSETNAME(op, name) bbs##op##_##name
1124 GET (n, "R.n -> Blum modulus")
1125 GETSET(x, "R.x -> current seed value")
1126 GET (stepsz, "R.stepsz -> number of bits generated per step")
1127#undef GETSETNAME
1128 { 0 }
1129};
1130
1131static PyTypeObject bbs_pytype_skel = {
6d4db0bf 1132 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1133 "BlumBlumShub", /* @tp_name@ */
d7ab1bab 1134 sizeof(grand_pyobj), /* @tp_basicsize@ */
1135 0, /* @tp_itemsize@ */
1136
1137 grand_pydealloc, /* @tp_dealloc@ */
1138 0, /* @tp_print@ */
1139 0, /* @tp_getattr@ */
1140 0, /* @tp_setattr@ */
1141 0, /* @tp_compare@ */
1142 0, /* @tp_repr@ */
1143 0, /* @tp_as_number@ */
1144 0, /* @tp_as_sequence@ */
1145 0, /* @tp_as_mapping@ */
1146 0, /* @tp_hash@ */
1147 0, /* @tp_call@ */
1148 0, /* @tp_str@ */
1149 0, /* @tp_getattro@ */
1150 0, /* @tp_setattro@ */
1151 0, /* @tp_as_buffer@ */
1152 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1153 Py_TPFLAGS_BASETYPE,
1154
1155 /* @tp_doc@ */
1156"Blum-Blum-Shub strong pseudorandom number generator.",
1157
1158 0, /* @tp_traverse@ */
1159 0, /* @tp_clear@ */
1160 0, /* @tp_richcompare@ */
1161 0, /* @tp_weaklistoffset@ */
1162 0, /* @tp_iter@ */
963a6148 1163 0, /* @tp_iternext@ */
d7ab1bab 1164 bbs_pymethods, /* @tp_methods@ */
1165 0, /* @tp_members@ */
1166 bbs_pygetset, /* @tp_getset@ */
1167 0, /* @tp_base@ */
1168 0, /* @tp_dict@ */
1169 0, /* @tp_descr_get@ */
1170 0, /* @tp_descr_set@ */
1171 0, /* @tp_dictoffset@ */
1172 0, /* @tp_init@ */
1173 PyType_GenericAlloc, /* @tp_alloc@ */
1174 bbs_pynew, /* @tp_new@ */
3aa33042 1175 0, /* @tp_free@ */
d7ab1bab 1176 0 /* @tp_is_gc@ */
1177};
1178
1179typedef struct bbspriv_pyobj {
1180 grand_pyobj gr;
1181 bbs_priv bp;
1182} bbspriv_pyobj;
1183
1184#define BBSPRIV_BP(o) (&((bbspriv_pyobj *)(o))->bp)
1185
1186static PyObject *bbspriv_pynew(PyTypeObject *ty,
1187 PyObject *arg, PyObject *kw)
1188{
1189 mp *p = 0, *q = 0, *n = 0, *x = MP_TWO;
1190 bbspriv_pyobj *rc = 0;
1191 char *kwlist[] = { "n", "p", "q", "seed", 0 };
1192
1193 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&O&O&O&:new", kwlist,
1194 convmp, &n, convmp, &p, convmp, &q,
1195 convmp, &x))
1196 goto end;
1197 if (!n + !p + !q > 1) VALERR("must specify at least two of n, p, q");
1198 if (!n) n = mp_mul(MP_NEW, p, q);
1199 else if (!p) mp_div(&p, 0, n, q);
1200 else if (!q) mp_div(&q, 0, n, p);
1201 rc = (bbspriv_pyobj *)ty->tp_alloc(ty, 0);
1202 rc->gr.r = bbs_rand(n, x);
1203 rc->gr.f = f_freeme;
1204 rc->bp.p = MP_COPY(p);
1205 rc->bp.q = MP_COPY(q);
1206 rc->bp.n = MP_COPY(n);
1207end:
1208 mp_drop(p); mp_drop(q); mp_drop(n); mp_drop(x);
1209 return ((PyObject *)rc);
1210}
1211
1212static PyObject *meth__BBSPriv_generate(PyObject *me,
1213 PyObject *arg, PyObject *kw)
1214{
1215 bbs_priv bp = { 0 };
1216 mp *x = MP_TWO;
1217 pgev evt = { 0 };
1218 unsigned nbits, n = 0;
1219 grand *r = &rand_global;
1220 char *kwlist[] = { "class", "nbits", "event", "rng", "nsteps", "seed", 0 };
1221 bbspriv_pyobj *rc = 0;
1222
1223 if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO&|O&O&O&O&:generate", kwlist,
1224 &me, convuint, &nbits, convpgev, &evt,
1225 convgrand, &r, convuint, &n, convmp, &x))
1226 goto end;
1227 if (bbs_gen(&bp, nbits, r, n, evt.proc, evt.ctx))
1228 VALERR("prime genration failed");
1229 rc = PyObject_New(bbspriv_pyobj, bbspriv_pytype);
1230 rc->gr.r = bbs_rand(bp.n, x);
1231 rc->gr.f = f_freeme;
1232 rc->bp.p = MP_COPY(bp.p);
1233 rc->bp.q = MP_COPY(bp.q);
1234 rc->bp.n = MP_COPY(bp.n);
1235end:
1236 mp_drop(bp.p); mp_drop(bp.q); mp_drop(bp.n); mp_drop(x);
b2687a0a 1237 return ((PyObject *)rc);
d7ab1bab 1238}
1239
1240static void bbspriv_pydealloc(PyObject *me)
1241{
1242 bbs_priv *bp = BBSPRIV_BP(me);
1243 mp_drop(bp->n);
1244 mp_drop(bp->p);
1245 mp_drop(bp->q);
1246 grand_pydealloc(me);
1247}
1248
1249static PyObject *bpmeth_ff(PyObject *me, PyObject *arg)
1250{
1251 mp *n = 0; grand *r = GRAND_R(me); bbs_priv *bp = BBSPRIV_BP(me);
1252 if (!PyArg_ParseTuple(arg, "O&:ff", convmp, &n)) return (0);
1253 r->ops->misc(r, BBS_FF, bp, n); RETURN_ME;
1254}
1255
1256static PyObject *bpmeth_rew(PyObject *me, PyObject *arg)
1257{
1258 mp *n = 0; grand *r = GRAND_R(me); bbs_priv *bp = BBSPRIV_BP(me);
1259 if (!PyArg_ParseTuple(arg, "O&:rew", convmp, &n)) return (0);
1260 r->ops->misc(r, BBS_REW, bp, n); RETURN_ME;
1261}
1262
1263static PyObject *bpget_n(PyObject *me, void *hunoz)
1264 { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->n))); }
1265
1266static PyObject *bpget_p(PyObject *me, void *hunoz)
1267 { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->p))); }
1268
1269static PyObject *bpget_q(PyObject *me, void *hunoz)
1270 { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->q))); }
1271
1272static PyMethodDef bbspriv_pymethods[] = {
1273#define METHNAME(name) bpmeth_##name
1274 METH (ff, "R.ff(N): fast-forward N places")
1275 METH (rew, "R.rew(N): rewind N places")
1276#undef METHNAME
1277 { 0 }
1278};
1279
1280static PyGetSetDef bbspriv_pygetset[] = {
1281#define GETSETNAME(op, name) bp##op##_##name
b2687a0a
MW		 1282 GET (n, "R.n -> Blum modulus")
1283 GET (p, "R.p -> one of the factors of the modulus")
1284 GET (q, "R.q -> one of the factors of the modulus")
d7ab1bab 1285#undef GETSETNAME
1286 { 0 }
1287};
1288
1289static PyTypeObject bbspriv_pytype_skel = {
6d4db0bf 1290 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1291 "BBSPriv", /* @tp_name@ */
d7ab1bab 1292 sizeof(bbspriv_pyobj), /* @tp_basicsize@ */
1293 0, /* @tp_itemsize@ */
1294
1295 bbspriv_pydealloc, /* @tp_dealloc@ */
1296 0, /* @tp_print@ */
1297 0, /* @tp_getattr@ */
1298 0, /* @tp_setattr@ */
1299 0, /* @tp_compare@ */
1300 0, /* @tp_repr@ */
1301 0, /* @tp_as_number@ */
1302 0, /* @tp_as_sequence@ */
1303 0, /* @tp_as_mapping@ */
1304 0, /* @tp_hash@ */
1305 0, /* @tp_call@ */
1306 0, /* @tp_str@ */
1307 0, /* @tp_getattro@ */
1308 0, /* @tp_setattro@ */
1309 0, /* @tp_as_buffer@ */
1310 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1311 Py_TPFLAGS_BASETYPE,
1312
1313 /* @tp_doc@ */
1314"Blum-Blum-Shub strong pseudorandom generator, with private key.",
1315
1316 0, /* @tp_traverse@ */
1317 0, /* @tp_clear@ */
1318 0, /* @tp_richcompare@ */
1319 0, /* @tp_weaklistoffset@ */
1320 0, /* @tp_iter@ */
963a6148 1321 0, /* @tp_iternext@ */
d7ab1bab 1322 bbspriv_pymethods, /* @tp_methods@ */
1323 0, /* @tp_members@ */
1324 bbspriv_pygetset, /* @tp_getset@ */
1325 0, /* @tp_base@ */
1326 0, /* @tp_dict@ */
1327 0, /* @tp_descr_get@ */
1328 0, /* @tp_descr_set@ */
1329 0, /* @tp_dictoffset@ */
1330 0, /* @tp_init@ */
1331 PyType_GenericAlloc, /* @tp_alloc@ */
1332 bbspriv_pynew, /* @tp_new@ */
3aa33042 1333 0, /* @tp_free@ */
d7ab1bab 1334 0 /* @tp_is_gc@ */
1335};
1336
1337/*----- Global stuff ------------------------------------------------------*/
1338
1339static PyMethodDef methods[] = {
1340#define METHNAME(name) meth_##name
1341 KWMETH(_BBSPriv_generate, "\
1342generate(NBITS, [event = pgen_nullev, rng = rand, nsteps = 0, seed = 2])")
1343#undef METHNAME
1344 { 0 }
1345};
1346
1347void rand_pyinit(void)
1348{
1349 INITTYPE(grand, root);
1350 INITTYPE(truerand, grand);
1351 INITTYPE(fibrand, grand);
1352 INITTYPE(lcrand, grand);
1353 INITTYPE(dsarand, grand);
1354 INITTYPE(bbs, grand);
1355 INITTYPE(bbspriv, bbs);
1356 INITTYPE(sslprf, grand);
1357 INITTYPE(tlsdx, grand);
1358 INITTYPE(tlsprf, grand);
850a4b48
MW		 1359 INITTYPE(gccrand, type);
1360 INITTYPE(gcrand, grand);
d7ab1bab 1361 rand_noisesrc(RAND_GLOBAL, &noise_source);
1362 rand_seed(RAND_GLOBAL, 160);
1363 addmethods(methods);
1364}
1365
850a4b48
MW		 1366#define gccrand gccrand_info
1367GEN(gccrands, crand)
1368
d7ab1bab 1369void rand_pyinsert(PyObject *mod)
1370{
1371 INSERT("GRand", grand_pytype);
1372 INSERT("TrueRand", truerand_pytype);
1373 INSERT("LCRand", lcrand_pytype);
1374 INSERT("FibRand", fibrand_pytype);
1375 INSERT("SSLRand", sslprf_pytype);
1376 INSERT("TLSDataExpansion", tlsdx_pytype);
1377 INSERT("TLSPRF", tlsprf_pytype);
1378 INSERT("DSARand", dsarand_pytype);
1379 INSERT("BlumBlumShub", bbs_pytype);
1380 INSERT("BBSPriv", bbspriv_pytype);
850a4b48
MW		 1381 INSERT("GCCRand", gccrand_pytype);
1382 INSERT("GCRand", gcrand_pytype);
d7ab1bab 1383 rand_pyobj = grand_pywrap(&rand_global, 0); Py_INCREF(rand_pyobj);
850a4b48
MW		 1384 gccrands_dict = gccrands(); Py_INCREF(gccrands_dict);
1385 INSERT("gccrands", gccrands_dict);
d7ab1bab 1386 INSERT("rand", rand_pyobj);
1387}
1388
1389/*----- That's all, folks -------------------------------------------------*/
Catacomb cryptographic library -- Python bindings