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debian/: Use `dh_python2' for packaging.
[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);
cb08602a
MW		 93 if (mm <= 0)
94 goto notpos;
d7ab1bab 95 if (mm <= 0xffffffff)
96 return (PyInt_FromLong(grand_range(GRAND_R(me), mm)));
97 }
98 if ((x = getmp(m)) == 0)
99 goto end;
cb08602a
MW		 100 if (!MP_POSP(x))
101 goto notpos;
d7ab1bab 102 y = mprand_range(MP_NEW, x, GRAND_R(me), 0);
103 MP_DROP(x);
104 return (mp_pywrap(y));
cb08602a
MW		 105notpos:
106 VALERR("range must be strictly positive");
d7ab1bab 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;
cb08602a 115 mpw o = 0;
d7ab1bab 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;
cb08602a 121 if (l < MPW_BITS && (o >> l)) VALERR("or mask too large");
d7ab1bab 122 return (mp_pywrap(mprand(MP_NEW, l, GRAND_R(me), o)));
123end:
124 return (0);
125}
126
127static PyObject *grmeth_block(PyObject *me, PyObject *arg)
128{
129 unsigned long n;
130 PyObject *rc = 0;
131
132 if (!PyArg_ParseTuple(arg, "O&:block", convulong, &n)) goto end;
133 rc = bytestring_pywrap(0, n);
134 grand_fill(GRAND_R(me), PyString_AS_STRING(rc), n);
135end:
136 return (rc);
137}
138
139static int checkop(grand *r, unsigned op, const char *what)
140{
141 if (r->ops->misc(r, GRAND_CHECK, op))
142 return (0);
143 PyErr_Format(PyExc_TypeError, "operation %s not supported", what);
144 return (-1);
145}
146
147static PyObject *grmeth_seedint(PyObject *me, PyObject *arg)
148{
149 int i;
150 grand *r = GRAND_R(me);
151 if (!PyArg_ParseTuple(arg, "i:seedint", &i) ||
152 checkop(r, GRAND_SEEDINT, "seedint"))
153 goto end;
154 r->ops->misc(r, GRAND_SEEDINT, i);
155 RETURN_ME;
156end:
157 return (0);
158}
159
160static PyObject *grmeth_seedword(PyObject *me, PyObject *arg)
161{
162 uint32 u;
163 grand *r = GRAND_R(me);
164 if (!PyArg_ParseTuple(arg, "O&:seedword", convu32, &u) ||
165 checkop(r, GRAND_SEEDUINT32, "seedword"))
166 goto end;
167 r->ops->misc(r, GRAND_SEEDUINT32, u);
168 RETURN_ME;
169end:
170 return (0);
171}
172
173static PyObject *grmeth_seedblock(PyObject *me, PyObject *arg)
174{
175 char *p;
6b54260d 176 Py_ssize_t n;
d7ab1bab 177 grand *r = GRAND_R(me);
178 if (!PyArg_ParseTuple(arg, "s#:seedblock", &p, &n) ||
179 checkop(r, GRAND_SEEDBLOCK, "seedblock"))
180 goto end;
181 r->ops->misc(r, GRAND_SEEDBLOCK, p, (size_t)n);
182 RETURN_ME;
183end:
184 return (0);
185}
186
187static PyObject *grmeth_seedmp(PyObject *me, PyObject *arg)
188{
189 PyObject *x;
190 mp *xx;
191 grand *r = GRAND_R(me);
192 if (!PyArg_ParseTuple(arg, "O:seedmp", &x) ||
193 checkop(r, GRAND_SEEDMP, "seedmp") ||
194 (xx = getmp(x)) == 0)
195 goto end;
196 r->ops->misc(r, GRAND_SEEDMP, xx);
197 MP_DROP(xx);
198 RETURN_ME;
199end:
200 return (0);
201}
202
203static PyObject *grmeth_seedrand(PyObject *me, PyObject *arg, PyObject *kw)
204{
205 char *kwlist[] = { "rng", 0 };
206 grand *r = GRAND_R(me);
207 grand *rr = &rand_global;
208 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:seedrand", kwlist,
209 convgrand, &rr) ||
210 checkop(r, GRAND_SEEDRAND, "seedrand"))
211 goto end;
212 r->ops->misc(r, GRAND_SEEDRAND, rr);
213 RETURN_ME;
214end:
215 return (0);
216}
217
218static PyObject *grmeth_mask(PyObject *me, PyObject *arg)
219{
220 grand *r = GRAND_R(me);
221 char *p, *q;
6b54260d 222 Py_ssize_t sz;
d7ab1bab 223 PyObject *rc;
224
225 if (!PyArg_ParseTuple(arg, "s#:mask", &p, &sz)) return (0);
226 rc = bytestring_pywrap(0, sz);
227 q = PyString_AS_STRING(rc);
228 GR_FILL(r, q, sz);
229 while (sz--) *q++ ^= *p++;
230 return (rc);
231}
232
233static void grand_pydealloc(PyObject *me)
234{
235 grand_pyobj *g = (grand_pyobj *)me;
236 if (g->f & f_freeme)
237 GR_DESTROY(g->r);
3aa33042 238 FREEOBJ(me);
d7ab1bab 239}
240
241static PyObject *grget_name(PyObject *me, void *hunoz)
242 { return (PyString_FromString(GRAND_R(me)->ops->name)); }
243
244static PyObject *grget_cryptop(PyObject *me, void *hunoz)
245 { return (getbool(GRAND_R(me)->ops->f & GRAND_CRYPTO)); }
246
247static PyGetSetDef grand_pygetset[] = {
248#define GETSETNAME(op, name) gr##op##_##name
249 GET (name, "R.name -> name of this kind of generator")
250 GET (cryptop, "R.cryptop -> flag: cryptographically strong?")
251#undef GETSETNAME
252 { 0 }
253};
254
255static PyMethodDef grand_pymethods[] = {
256#define METHNAME(name) grmeth_##name
257 METH (byte, "R.byte() -> BYTE")
258 METH (word, "R.word() -> WORD")
259 METH (block, "R.block(N) -> STRING")
986bcc44 260 KWMETH(mp, "R.mp(bits, [or = 0]) -> MP")
d7ab1bab 261 METH (range, "R.range(MAX) -> INT")
262 METH (mask, "R.mask(STR) -> STR")
263 METH (seedint, "R.seedint(I)")
264 METH (seedword, "R.seedword(I)")
265 METH (seedblock, "R.seedblock(BYTES)")
266 METH (seedmp, "R.seedmp(X)")
267 KWMETH(seedrand, "R.seedrand(RR)")
268#undef METHNAME
269 { 0 }
270};
271
272static PyTypeObject grand_pytype_skel = {
6d4db0bf 273 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 274 "GRand", /* @tp_name@ */
d7ab1bab 275 sizeof(grand_pyobj), /* @tp_basicsize@ */
276 0, /* @tp_itemsize@ */
277
278 grand_pydealloc, /* @tp_dealloc@ */
279 0, /* @tp_print@ */
280 0, /* @tp_getattr@ */
281 0, /* @tp_setattr@ */
282 0, /* @tp_compare@ */
283 0, /* @tp_repr@ */
284 0, /* @tp_as_number@ */
285 0, /* @tp_as_sequence@ */
286 0, /* @tp_as_mapping@ */
287 0, /* @tp_hash@ */
288 0, /* @tp_call@ */
289 0, /* @tp_str@ */
290 0, /* @tp_getattro@ */
291 0, /* @tp_setattro@ */
292 0, /* @tp_as_buffer@ */
293 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
294 Py_TPFLAGS_BASETYPE,
295
296 /* @tp_doc@ */
297"Generic random number source.",
298
299 0, /* @tp_traverse@ */
300 0, /* @tp_clear@ */
301 0, /* @tp_richcompare@ */
302 0, /* @tp_weaklistoffset@ */
303 0, /* @tp_iter@ */
963a6148 304 0, /* @tp_iternext@ */
d7ab1bab 305 grand_pymethods, /* @tp_methods@ */
306 0, /* @tp_members@ */
307 grand_pygetset, /* @tp_getset@ */
308 0, /* @tp_base@ */
309 0, /* @tp_dict@ */
310 0, /* @tp_descr_get@ */
311 0, /* @tp_descr_set@ */
312 0, /* @tp_dictoffset@ */
313 0, /* @tp_init@ */
314 PyType_GenericAlloc, /* @tp_alloc@ */
315 abstract_pynew, /* @tp_new@ */
3aa33042 316 0, /* @tp_free@ */
d7ab1bab 317 0 /* @tp_is_gc@ */
318};
319
320static PyObject *lcrand_pynew(PyTypeObject *me, PyObject *arg, PyObject *kw)
321{
322 uint32 n = 0;
323 char *kwlist[] = { "seed", 0 };
324 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:new", kwlist, convu32, &n))
325 return (0);
326 return (grand_dopywrap(lcrand_pytype, lcrand_create(n), f_freeme));
327}
328
329static PyTypeObject lcrand_pytype_skel = {
6d4db0bf 330 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 331 "LCRand", /* @tp_name@ */
d7ab1bab 332 sizeof(grand_pyobj), /* @tp_basicsize@ */
333 0, /* @tp_itemsize@ */
334
335 grand_pydealloc, /* @tp_dealloc@ */
336 0, /* @tp_print@ */
337 0, /* @tp_getattr@ */
338 0, /* @tp_setattr@ */
339 0, /* @tp_compare@ */
340 0, /* @tp_repr@ */
341 0, /* @tp_as_number@ */
342 0, /* @tp_as_sequence@ */
343 0, /* @tp_as_mapping@ */
344 0, /* @tp_hash@ */
345 0, /* @tp_call@ */
346 0, /* @tp_str@ */
347 0, /* @tp_getattro@ */
348 0, /* @tp_setattro@ */
349 0, /* @tp_as_buffer@ */
350 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
351 Py_TPFLAGS_BASETYPE,
352
353 /* @tp_doc@ */
06cd26e8 354"LCRand([seed = 0]): linear congruential generator.",
d7ab1bab 355
356 0, /* @tp_traverse@ */
357 0, /* @tp_clear@ */
358 0, /* @tp_richcompare@ */
359 0, /* @tp_weaklistoffset@ */
360 0, /* @tp_iter@ */
963a6148 361 0, /* @tp_iternext@ */
d7ab1bab 362 0, /* @tp_methods@ */
363 0, /* @tp_members@ */
364 0, /* @tp_getset@ */
365 0, /* @tp_base@ */
366 0, /* @tp_dict@ */
367 0, /* @tp_descr_get@ */
368 0, /* @tp_descr_set@ */
369 0, /* @tp_dictoffset@ */
370 0, /* @tp_init@ */
371 PyType_GenericAlloc, /* @tp_alloc@ */
372 lcrand_pynew, /* @tp_new@ */
3aa33042 373 0, /* @tp_free@ */
d7ab1bab 374 0 /* @tp_is_gc@ */
375};
376
377static PyObject *fibrand_pynew(PyTypeObject *me, PyObject *arg, PyObject *kw)
378{
379 uint32 n = 0;
380 char *kwlist[] = { "seed", 0 };
381 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:new", kwlist, convu32, &n))
382 return (0);
383 return (grand_dopywrap(fibrand_pytype, fibrand_create(n), f_freeme));
384}
385
386static PyTypeObject fibrand_pytype_skel = {
6d4db0bf 387 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 388 "FibRand", /* @tp_name@ */
d7ab1bab 389 sizeof(grand_pyobj), /* @tp_basicsize@ */
390 0, /* @tp_itemsize@ */
391
392 grand_pydealloc, /* @tp_dealloc@ */
393 0, /* @tp_print@ */
394 0, /* @tp_getattr@ */
395 0, /* @tp_setattr@ */
396 0, /* @tp_compare@ */
397 0, /* @tp_repr@ */
398 0, /* @tp_as_number@ */
399 0, /* @tp_as_sequence@ */
400 0, /* @tp_as_mapping@ */
401 0, /* @tp_hash@ */
402 0, /* @tp_call@ */
403 0, /* @tp_str@ */
404 0, /* @tp_getattro@ */
405 0, /* @tp_setattro@ */
406 0, /* @tp_as_buffer@ */
407 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
408 Py_TPFLAGS_BASETYPE,
409
410 /* @tp_doc@ */
06cd26e8 411"FibRand([seed = 0]): Fibonacci generator.",
d7ab1bab 412
413 0, /* @tp_traverse@ */
414 0, /* @tp_clear@ */
415 0, /* @tp_richcompare@ */
416 0, /* @tp_weaklistoffset@ */
417 0, /* @tp_iter@ */
963a6148 418 0, /* @tp_iternext@ */
d7ab1bab 419 0, /* @tp_methods@ */
420 0, /* @tp_members@ */
421 0, /* @tp_getset@ */
422 0, /* @tp_base@ */
423 0, /* @tp_dict@ */
424 0, /* @tp_descr_get@ */
425 0, /* @tp_descr_set@ */
426 0, /* @tp_dictoffset@ */
427 0, /* @tp_init@ */
428 PyType_GenericAlloc, /* @tp_alloc@ */
429 fibrand_pynew, /* @tp_new@ */
3aa33042 430 0, /* @tp_free@ */
d7ab1bab 431 0 /* @tp_is_gc@ */
432};
433
434/*----- True random generator ---------------------------------------------*/
435
436static PyObject *trmeth_gate(PyObject *me, PyObject *arg)
437{
438 grand *r = GRAND_R(me);
439 if (!PyArg_ParseTuple(arg, ":gate")) return (0);
440 r->ops->misc(r, RAND_GATE);
441 RETURN_ME;
442}
443
444static PyObject *trmeth_stretch(PyObject *me, PyObject *arg)
445{
446 grand *r = GRAND_R(me);
447 if (!PyArg_ParseTuple(arg, ":stretch")) return (0);
448 r->ops->misc(r, RAND_STRETCH);
449 RETURN_ME;
450}
451
850a4b48
MW		 452static PyObject *trmeth_add(PyObject *me, PyObject *arg)
453{
454 grand *r = GRAND_R(me);
6b54260d 455 char *p; Py_ssize_t n; unsigned goodbits;
850a4b48
MW		 456 if (!PyArg_ParseTuple(arg, "s#O&:add", &p, &n, convuint, &goodbits))
457 return (0);
458 r->ops->misc(r, RAND_ADD, p, (size_t)n, goodbits);
459 RETURN_ME;
460}
461
d7ab1bab 462static PyObject *trmeth_key(PyObject *me, PyObject *arg)
463{
464 grand *r = GRAND_R(me);
6b54260d 465 char *p; Py_ssize_t n;
d7ab1bab 466 if (!PyArg_ParseTuple(arg, "s#:key", &p, &n)) return (0);
850a4b48 467 r->ops->misc(r, RAND_KEY, p, (size_t)n);
d7ab1bab 468 RETURN_ME;
469}
470
471static PyObject *trmeth_seed(PyObject *me, PyObject *arg)
472{
473 grand *r = GRAND_R(me);
474 unsigned u;
475 if (!PyArg_ParseTuple(arg, "O&:seed", convuint, &u)) return (0);
476 if (u > RAND_IBITS) VALERR("pointlessly large");
477 r->ops->misc(r, RAND_SEED, u);
478 RETURN_ME;
479end:
480 return (0);
481}
482
483static PyObject *trmeth_timer(PyObject *me, PyObject *arg)
484{
485 grand *r = GRAND_R(me);
486 if (!PyArg_ParseTuple(arg, ":timer")) return (0);
487 r->ops->misc(r, RAND_TIMER);
488 RETURN_ME;
489}
490
491static PyObject *truerand_pynew(PyTypeObject *ty,
492 PyObject *arg, PyObject *kw)
493{
494 char *kwlist[] = { 0 };
495 grand *r;
496 PyObject *rc = 0;
497 if (PyArg_ParseTupleAndKeywords(arg, kw, ":new", kwlist)) goto end;
498 r = rand_create();
499 r->ops->misc(r, RAND_NOISESRC, &noise_source);
500 r->ops->misc(r, RAND_SEED, 160);
501 rc = grand_dopywrap(ty, r, f_freeme);
502end:
503 return (rc);
504}
505
506static PyMethodDef truerand_pymethods[] = {
507#define METHNAME(name) trmeth_##name
508 METH (gate, "R.gate()")
509 METH (stretch, "R.stretch()")
510 METH (key, "R.key(BYTES)")
511 METH (seed, "R.seed(NBITS)")
850a4b48 512 METH (add, "R.add(BYTES, GOODBITS")
d7ab1bab 513 METH (timer, "R.timer()")
514#undef METHNAME
515 { 0 }
516};
517
518static PyObject *trget_goodbits(PyObject *me, void *hunoz)
519{
520 grand *r = GRAND_R(me);
521 return (PyInt_FromLong(r->ops->misc(r, RAND_GOODBITS)));
522}
523
524static PyGetSetDef truerand_pygetset[] = {
525#define GETSETNAME(op, name) tr##op##_##name
b2687a0a 526 GET (goodbits, "R.goodbits -> good bits of entropy remaining")
d7ab1bab 527#undef GETSETNAME
528 { 0 }
529};
530
531static PyTypeObject truerand_pytype_skel = {
6d4db0bf 532 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 533 "TrueRand", /* @tp_name@ */
d7ab1bab 534 sizeof(grand_pyobj), /* @tp_basicsize@ */
535 0, /* @tp_itemsize@ */
536
537 grand_pydealloc, /* @tp_dealloc@ */
538 0, /* @tp_print@ */
539 0, /* @tp_getattr@ */
540 0, /* @tp_setattr@ */
541 0, /* @tp_compare@ */
542 0, /* @tp_repr@ */
543 0, /* @tp_as_number@ */
544 0, /* @tp_as_sequence@ */
545 0, /* @tp_as_mapping@ */
546 0, /* @tp_hash@ */
547 0, /* @tp_call@ */
548 0, /* @tp_str@ */
549 0, /* @tp_getattro@ */
550 0, /* @tp_setattro@ */
551 0, /* @tp_as_buffer@ */
552 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
553 Py_TPFLAGS_BASETYPE,
554
555 /* @tp_doc@ */
06cd26e8 556"TrueRand(): true random number source.",
d7ab1bab 557
558 0, /* @tp_traverse@ */
559 0, /* @tp_clear@ */
560 0, /* @tp_richcompare@ */
561 0, /* @tp_weaklistoffset@ */
562 0, /* @tp_iter@ */
963a6148 563 0, /* @tp_iternext@ */
d7ab1bab 564 truerand_pymethods, /* @tp_methods@ */
565 0, /* @tp_members@ */
566 truerand_pygetset, /* @tp_getset@ */
567 0, /* @tp_base@ */
568 0, /* @tp_dict@ */
569 0, /* @tp_descr_get@ */
570 0, /* @tp_descr_set@ */
571 0, /* @tp_dictoffset@ */
572 0, /* @tp_init@ */
573 PyType_GenericAlloc, /* @tp_alloc@ */
574 truerand_pynew, /* @tp_new@ */
3aa33042 575 0, /* @tp_free@ */
d7ab1bab 576 0 /* @tp_is_gc@ */
577};
578
850a4b48
MW		 579/*----- Generators from symmetric encryption algorithms -------------------*/
580
35e5469a 581static PyTypeObject *gccrand_pytype, *gcrand_pytype, *gclatinrand_pytype;
850a4b48
MW		 582
583typedef grand *gcrand_func(const void *, size_t sz);
584typedef grand *gcirand_func(const void *, size_t sz, uint32);
3f4f64b8 585typedef grand *gcnrand_func(const void *, size_t sz, const void *);
6bd22b53
MW		 586typedef grand *gcshakerand_func(const void *, size_t,
587 const void *, size_t,
588 const void *, size_t);
589typedef grand *gcshafuncrand_func(const void *, size_t,
590 const void *, size_t);
591typedef grand *gckmacrand_func(const void *, size_t, const void *, size_t);
850a4b48
MW		 592typedef struct gccrand_info {
593 const char *name;
594 const octet *keysz;
595 unsigned f;
3f4f64b8 596 size_t noncesz;
850a4b48
MW		 597 gcrand_func *func;
598} gccrand_info;
599
34825452
MW		 600#define RNGF_MASK 255u
601
602enum {
603 RNG_PLAIN = 0,
604 RNG_SEAL,
605 RNG_LATIN,
606 RNG_SHAKE,
607 RNG_KMAC
608};
78f06cd3 609
850a4b48
MW		 610typedef struct gccrand_pyobj {
611 PyHeapTypeObject ty;
612 const gccrand_info *info;
613} gccrand_pyobj;
614#define GCCRAND_INFO(o) (((gccrand_pyobj *)(o))->info)
615
3f4f64b8 616#define GCCRAND_DEF(name, ksz, func, f, nsz) \
850a4b48 617 static const gccrand_info func##_info = \
3f4f64b8 618 { name, ksz, f, nsz, (gcrand_func *)func };
850a4b48
MW		 619RNGS(GCCRAND_DEF)
620
621static const gccrand_info *const gcrandtab[] = {
3f4f64b8 622#define GCCRAND_ENTRY(name, ksz, func, f, nsz) &func##_info,
850a4b48
MW		 623 RNGS(GCCRAND_ENTRY)
624 0
625};
626
627static PyObject *gcrand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
628{
629 const gccrand_info *info = GCCRAND_INFO(ty);
630 static char *kwlist[] = { "key", 0 };
631 char *k;
6b54260d 632 Py_ssize_t n;
850a4b48
MW		 633
634 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &n))
635 goto end;
636 if (keysz(n, info->keysz) != n) VALERR("bad key length");
637 return (grand_dopywrap(ty, info->func(k, n), f_freeme));
638end:
b2687a0a 639 return (0);
850a4b48
MW		 640}
641
642static PyObject *gcirand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
643{
644 const gccrand_info *info = GCCRAND_INFO(ty);
645 uint32 i = 0;
646 static char *kwlist[] = { "key", "i", 0 };
647 char *k;
6b54260d 648 Py_ssize_t n;
850a4b48
MW		 649
650 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#O&:new", kwlist,
651 &k, &n, convu32, &i))
652 goto end;
653 if (keysz(n, info->keysz) != n) VALERR("bad key length");
654 return (grand_dopywrap(ty,
655 ((gcirand_func *)info->func)(k, n, i),
656 f_freeme));
657end:
b2687a0a 658 return (0);
850a4b48
MW		 659}
660
3f4f64b8
MW		 661static PyObject *gcnrand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
662{
663 const gccrand_info *info = GCCRAND_INFO(ty);
664 static char *kwlist[] = { "key", "nonce", 0 };
665 char *k, *n;
6b54260d 666 Py_ssize_t ksz, nsz;
3f4f64b8
MW		 667
668 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#:new", kwlist,
669 &k, &ksz, &n, &nsz))
670 goto end;
671 if (keysz(ksz, info->keysz) != ksz) VALERR("bad key length");
672 if (nsz != info->noncesz) VALERR("bad nonce length");
673 return (grand_dopywrap(ty,
674 ((gcnrand_func *)info->func)(k, ksz, n),
675 f_freeme));
676end:
677 return (0);
678}
679
6bd22b53
MW		 680static PyObject *gcshakyrand_pynew(PyTypeObject *ty,
681 PyObject *arg, PyObject *kw)
682{
683 const gccrand_info *info = GCCRAND_INFO(ty);
684 static char *kwlist_shake[] = { "key", "func", "perso", 0 };
685 static char *kwlist_func[] = { "key", "perso", 0 };
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
690 ? !PyArg_ParseTupleAndKeywords(arg, kw, "s#|s#s#:new", kwlist_shake,
691 &k, &ksz, &f, &fsz, &p, &psz)
692 : !PyArg_ParseTupleAndKeywords(arg, kw, "s#|s#:new", kwlist_func,
693 &k, &ksz, &p, &psz))
694 goto end;
695 if (keysz(ksz, info->keysz) != ksz) VALERR("bad key length");
696 return (grand_dopywrap(ty,
697 (info->f&RNGF_MASK) == RNG_SHAKE
698 ? ((gcshakerand_func *)info->func)(f, fsz,
699 p, psz,
700 k, ksz)
701 : ((gcshafuncrand_func *)info->func)(p, psz,
702 k, ksz),
703 f_freeme));
704end:
705 return (0);
706}
707
850a4b48
MW		 708static PyObject *gccrand_pywrap(const gccrand_info *info)
709{
710 gccrand_pyobj *g = newtype(gccrand_pytype, 0, info->name);
711 g->info = info;
24b3d57b 712 g->ty.ht_type.tp_basicsize = sizeof(grand_pyobj);
34825452
MW		 713 switch (info->f&RNGF_MASK) {
714 case RNG_LATIN: g->ty.ht_type.tp_base = gclatinrand_pytype; break;
715 default: g->ty.ht_type.tp_base = gcrand_pytype; break;
716 }
35e5469a 717 Py_INCREF(g->ty.ht_type.tp_base);
24b3d57b
MW		 718 g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT |
719 Py_TPFLAGS_BASETYPE |
720 Py_TPFLAGS_HEAPTYPE);
721 g->ty.ht_type.tp_alloc = PyType_GenericAlloc;
722 g->ty.ht_type.tp_free = 0;
34825452
MW		 723 switch (info->f&RNGF_MASK) {
724 case RNG_LATIN: g->ty.ht_type.tp_new = gcnrand_pynew; break;
725 case RNG_SEAL: g->ty.ht_type.tp_new = gcirand_pynew; break;
6bd22b53
MW		 726 case RNG_SHAKE: case RNG_KMAC:
727 g->ty.ht_type.tp_new = gcshakyrand_pynew; break;
34825452
MW		 728 default: g->ty.ht_type.tp_new = gcrand_pynew; break;
729 }
dc075750 730 typeready(&g->ty.ht_type);
850a4b48
MW		 731 return ((PyObject *)g);
732}
733
734static PyObject *gccrget_name(PyObject *me, void *hunoz)
735 { return (PyString_FromString(GCCRAND_INFO(me)->name)); }
736static PyObject *gccrget_keysz(PyObject *me, void *hunoz)
737 { return (keysz_pywrap(GCCRAND_INFO(me)->keysz)); }
738
35e5469a
MW		 739static PyObject *gclrmeth_tell(PyObject *me, PyObject *arg)
740{
741 grand *r = GRAND_R(me);
742 PyObject *rc = 0;
743 kludge64 off;
744
745 if (!PyArg_ParseTuple(arg, ":tell")) return (0);
746 r->ops->misc(r, SALSA20_TELLU64, &off);
747 rc = getk64(off);
748 return (rc);
749}
750
751static PyObject *gclrmeth_seek(PyObject *me, PyObject *arg)
752{
753 grand *r = GRAND_R(me);
754 kludge64 off;
755
756 if (!PyArg_ParseTuple(arg, "O&:seek", convk64, &off)) return (0);
757 r->ops->misc(r, SALSA20_SEEKU64, off);
758 RETURN_ME;
759}
760
850a4b48
MW		 761static PyGetSetDef gccrand_pygetset[] = {
762#define GETSETNAME(op, name) gccr##op##_##name
763 GET (keysz, "CR.keysz -> acceptable key sizes")
764 GET (name, "CR.name -> name of this kind of generator")
765#undef GETSETNAME
766 { 0 }
767};
768
35e5469a
MW		 769static PyMethodDef gclatinrand_pymethods[] = {
770#define METHNAME(name) gclrmeth_##name
771 METH (tell, "R.tell() -> OFF")
772 METH (seek, "R.seek(OFF)")
773#undef METHNAME
774 { 0 }
775};
776
850a4b48
MW		 777static PyTypeObject gccrand_pytype_skel = {
778 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 779 "GCCRand", /* @tp_name@ */
850a4b48
MW		 780 sizeof(gccrand_pyobj), /* @tp_basicsize@ */
781 0, /* @tp_itemsize@ */
782
783 0, /* @tp_dealloc@ */
784 0, /* @tp_print@ */
785 0, /* @tp_getattr@ */
786 0, /* @tp_setattr@ */
787 0, /* @tp_compare@ */
788 0, /* @tp_repr@ */
789 0, /* @tp_as_number@ */
790 0, /* @tp_as_sequence@ */
791 0, /* @tp_as_mapping@ */
792 0, /* @tp_hash@ */
793 0, /* @tp_call@ */
794 0, /* @tp_str@ */
795 0, /* @tp_getattro@ */
796 0, /* @tp_setattro@ */
797 0, /* @tp_as_buffer@ */
798 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
799 Py_TPFLAGS_BASETYPE,
800
801 /* @tp_doc@ */
802"Metaclass for symmetric crypto-based generators.",
803
804 0, /* @tp_traverse@ */
805 0, /* @tp_clear@ */
806 0, /* @tp_richcompare@ */
807 0, /* @tp_weaklistoffset@ */
808 0, /* @tp_iter@ */
809 0, /* @tp_iternext@ */
810 0, /* @tp_methods@ */
811 0, /* @tp_members@ */
812 gccrand_pygetset, /* @tp_getset@ */
813 0, /* @tp_base@ */
814 0, /* @tp_dict@ */
815 0, /* @tp_descr_get@ */
816 0, /* @tp_descr_set@ */
817 0, /* @tp_dictoffset@ */
818 0, /* @tp_init@ */
819 PyType_GenericAlloc, /* @tp_alloc@ */
820 abstract_pynew, /* @tp_new@ */
821 0, /* @tp_free@ */
822 0 /* @tp_is_gc@ */
823};
824
825static PyTypeObject gcrand_pytype_skel = {
826 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 827 "GCRand", /* @tp_name@ */
850a4b48
MW		 828 sizeof(grand_pyobj), /* @tp_basicsize@ */
829 0, /* @tp_itemsize@ */
830
831 grand_pydealloc, /* @tp_dealloc@ */
832 0, /* @tp_print@ */
833 0, /* @tp_getattr@ */
834 0, /* @tp_setattr@ */
835 0, /* @tp_compare@ */
836 0, /* @tp_repr@ */
837 0, /* @tp_as_number@ */
838 0, /* @tp_as_sequence@ */
839 0, /* @tp_as_mapping@ */
840 0, /* @tp_hash@ */
841 0, /* @tp_call@ */
842 0, /* @tp_str@ */
843 0, /* @tp_getattro@ */
844 0, /* @tp_setattro@ */
845 0, /* @tp_as_buffer@ */
846 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
847 Py_TPFLAGS_BASETYPE,
848
849 /* @tp_doc@ */
850"Abstract base class for symmetric crypto-based generators.",
851
852 0, /* @tp_traverse@ */
853 0, /* @tp_clear@ */
854 0, /* @tp_richcompare@ */
855 0, /* @tp_weaklistoffset@ */
856 0, /* @tp_iter@ */
857 0, /* @tp_iternext@ */
858 0, /* @tp_methods@ */
859 0, /* @tp_members@ */
860 0, /* @tp_getset@ */
861 0, /* @tp_base@ */
862 0, /* @tp_dict@ */
863 0, /* @tp_descr_get@ */
864 0, /* @tp_descr_set@ */
865 0, /* @tp_dictoffset@ */
866 0, /* @tp_init@ */
867 PyType_GenericAlloc, /* @tp_alloc@ */
868 abstract_pynew, /* @tp_new@ */
869 0, /* @tp_free@ */
870 0 /* @tp_is_gc@ */
871};
872
35e5469a
MW		 873static PyTypeObject gclatinrand_pytype_skel = {
874 PyObject_HEAD_INIT(0) 0, /* Header */
875 "GCLatinRand", /* @tp_name@ */
876 sizeof(grand_pyobj), /* @tp_basicsize@ */
877 0, /* @tp_itemsize@ */
878
879 grand_pydealloc, /* @tp_dealloc@ */
880 0, /* @tp_print@ */
881 0, /* @tp_getattr@ */
882 0, /* @tp_setattr@ */
883 0, /* @tp_compare@ */
884 0, /* @tp_repr@ */
885 0, /* @tp_as_number@ */
886 0, /* @tp_as_sequence@ */
887 0, /* @tp_as_mapping@ */
888 0, /* @tp_hash@ */
889 0, /* @tp_call@ */
890 0, /* @tp_str@ */
891 0, /* @tp_getattro@ */
892 0, /* @tp_setattro@ */
893 0, /* @tp_as_buffer@ */
894 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
895 Py_TPFLAGS_BASETYPE,
896
897 /* @tp_doc@ */
898"Abstract base class for symmetric crypto-based generators.",
899
900 0, /* @tp_traverse@ */
901 0, /* @tp_clear@ */
902 0, /* @tp_richcompare@ */
903 0, /* @tp_weaklistoffset@ */
904 0, /* @tp_iter@ */
905 0, /* @tp_iternext@ */
906 gclatinrand_pymethods, /* @tp_methods@ */
907 0, /* @tp_members@ */
908 0, /* @tp_getset@ */
909 0, /* @tp_base@ */
910 0, /* @tp_dict@ */
911 0, /* @tp_descr_get@ */
912 0, /* @tp_descr_set@ */
913 0, /* @tp_dictoffset@ */
914 0, /* @tp_init@ */
915 PyType_GenericAlloc, /* @tp_alloc@ */
916 abstract_pynew, /* @tp_new@ */
917 0, /* @tp_free@ */
918 0 /* @tp_is_gc@ */
919};
920
d7ab1bab 921/*----- SSL and TLS generators --------------------------------------------*/
922
923static PyObject *sslprf_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
924{
925 char *k, *s;
926 int ksz, ssz;
927 const gchash *hco = &md5, *hci = &sha;
928 PyObject *rc = 0;
929 char *kwlist[] = { "key", "seed", "ohash", "ihash", 0 };
930
931 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#|O&O&:new", kwlist,
932 &k, &ksz, &s, &ssz,
933 convgchash, &hco, convgchash, &hci))
934 goto end;
935 rc = grand_dopywrap(ty, sslprf_rand(hco, hci, k, ksz, s, ssz), f_freeme);
936end:
937 return (rc);
938}
939
940static PyObject *tlsdx_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
941{
942 char *k, *s;
943 int ksz, ssz;
944 const gcmac *mc = &sha_hmac;
945 PyObject *rc = 0;
946 char *kwlist[] = { "key", "seed", "mac", 0 };
947
948 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#|O&:new", kwlist,
949 &k, &ksz, &s, &ssz,
950 convgcmac, &mc))
951 goto end;
952 rc = grand_dopywrap(ty, tlsdx_rand(mc, k, ksz, s, ssz), f_freeme);
953end:
954 return (rc);
955}
956
957static PyObject *tlsprf_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
958{
959 char *k, *s;
960 int ksz, ssz;
961 const gcmac *mcl = &md5_hmac, *mcr = &sha_hmac;
962 PyObject *rc = 0;
963 char *kwlist[] = { "key", "seed", "lmac", "rmac", 0 };
964
965 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#|O&O&:new", kwlist,
966 &k, &ksz, &s, &ssz,
967 convgcmac, &mcl, convgcmac, &mcr))
968 goto end;
969 rc = grand_dopywrap(ty, tlsprf_rand(mcl, mcr, k, ksz, s, ssz), f_freeme);
970end:
971 return (rc);
972}
973
974static PyTypeObject sslprf_pytype_skel = {
6d4db0bf 975 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 976 "SSLRand", /* @tp_name@ */
d7ab1bab 977 sizeof(grand_pyobj), /* @tp_basicsize@ */
978 0, /* @tp_itemsize@ */
979
980 grand_pydealloc, /* @tp_dealloc@ */
981 0, /* @tp_print@ */
982 0, /* @tp_getattr@ */
983 0, /* @tp_setattr@ */
984 0, /* @tp_compare@ */
985 0, /* @tp_repr@ */
986 0, /* @tp_as_number@ */
987 0, /* @tp_as_sequence@ */
988 0, /* @tp_as_mapping@ */
989 0, /* @tp_hash@ */
990 0, /* @tp_call@ */
991 0, /* @tp_str@ */
992 0, /* @tp_getattro@ */
993 0, /* @tp_setattro@ */
994 0, /* @tp_as_buffer@ */
995 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
996 Py_TPFLAGS_BASETYPE,
997
998 /* @tp_doc@ */
06cd26e8
MW		 999"SSLRand(KEY, SEED, [ohash = md5], [ihash = sha]):\n\
1000 RNG for SSL master secret.",
d7ab1bab 1001
1002 0, /* @tp_traverse@ */
1003 0, /* @tp_clear@ */
1004 0, /* @tp_richcompare@ */
1005 0, /* @tp_weaklistoffset@ */
1006 0, /* @tp_iter@ */
963a6148 1007 0, /* @tp_iternext@ */
d7ab1bab 1008 0, /* @tp_methods@ */
1009 0, /* @tp_members@ */
1010 0, /* @tp_getset@ */
1011 0, /* @tp_base@ */
1012 0, /* @tp_dict@ */
1013 0, /* @tp_descr_get@ */
1014 0, /* @tp_descr_set@ */
1015 0, /* @tp_dictoffset@ */
1016 0, /* @tp_init@ */
1017 PyType_GenericAlloc, /* @tp_alloc@ */
1018 sslprf_pynew, /* @tp_new@ */
3aa33042 1019 0, /* @tp_free@ */
d7ab1bab 1020 0 /* @tp_is_gc@ */
1021};
1022
1023static PyTypeObject tlsdx_pytype_skel = {
6d4db0bf 1024 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1025 "TLSDataExpansion", /* @tp_name@ */
d7ab1bab 1026 sizeof(grand_pyobj), /* @tp_basicsize@ */
1027 0, /* @tp_itemsize@ */
1028
1029 grand_pydealloc, /* @tp_dealloc@ */
1030 0, /* @tp_print@ */
1031 0, /* @tp_getattr@ */
1032 0, /* @tp_setattr@ */
1033 0, /* @tp_compare@ */
1034 0, /* @tp_repr@ */
1035 0, /* @tp_as_number@ */
1036 0, /* @tp_as_sequence@ */
1037 0, /* @tp_as_mapping@ */
1038 0, /* @tp_hash@ */
1039 0, /* @tp_call@ */
1040 0, /* @tp_str@ */
1041 0, /* @tp_getattro@ */
1042 0, /* @tp_setattro@ */
1043 0, /* @tp_as_buffer@ */
1044 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1045 Py_TPFLAGS_BASETYPE,
1046
1047 /* @tp_doc@ */
06cd26e8
MW		 1048"TLSDataExpansion(KEY, SEED, [mac = sha_hmac]):\n\
1049 TLS data expansion function.",
d7ab1bab 1050
1051 0, /* @tp_traverse@ */
1052 0, /* @tp_clear@ */
1053 0, /* @tp_richcompare@ */
1054 0, /* @tp_weaklistoffset@ */
1055 0, /* @tp_iter@ */
963a6148 1056 0, /* @tp_iternext@ */
d7ab1bab 1057 0, /* @tp_methods@ */
1058 0, /* @tp_members@ */
1059 0, /* @tp_getset@ */
1060 0, /* @tp_base@ */
1061 0, /* @tp_dict@ */
1062 0, /* @tp_descr_get@ */
1063 0, /* @tp_descr_set@ */
1064 0, /* @tp_dictoffset@ */
1065 0, /* @tp_init@ */
1066 PyType_GenericAlloc, /* @tp_alloc@ */
1067 tlsdx_pynew, /* @tp_new@ */
3aa33042 1068 0, /* @tp_free@ */
d7ab1bab 1069 0 /* @tp_is_gc@ */
1070};
1071
1072static PyTypeObject tlsprf_pytype_skel = {
6d4db0bf 1073 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1074 "TLSPRF", /* @tp_name@ */
d7ab1bab 1075 sizeof(grand_pyobj), /* @tp_basicsize@ */
1076 0, /* @tp_itemsize@ */
1077
1078 grand_pydealloc, /* @tp_dealloc@ */
1079 0, /* @tp_print@ */
1080 0, /* @tp_getattr@ */
1081 0, /* @tp_setattr@ */
1082 0, /* @tp_compare@ */
1083 0, /* @tp_repr@ */
1084 0, /* @tp_as_number@ */
1085 0, /* @tp_as_sequence@ */
1086 0, /* @tp_as_mapping@ */
1087 0, /* @tp_hash@ */
1088 0, /* @tp_call@ */
1089 0, /* @tp_str@ */
1090 0, /* @tp_getattro@ */
1091 0, /* @tp_setattro@ */
1092 0, /* @tp_as_buffer@ */
1093 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1094 Py_TPFLAGS_BASETYPE,
1095
1096 /* @tp_doc@ */
06cd26e8
MW		 1097"TLSPRF(KEY, SEED, [lmac = md5_hmac], [rmac = sha_hmac]):\n\
1098 TLS pseudorandom function.",
d7ab1bab 1099
1100 0, /* @tp_traverse@ */
1101 0, /* @tp_clear@ */
1102 0, /* @tp_richcompare@ */
1103 0, /* @tp_weaklistoffset@ */
1104 0, /* @tp_iter@ */
963a6148 1105 0, /* @tp_iternext@ */
d7ab1bab 1106 0, /* @tp_methods@ */
1107 0, /* @tp_members@ */
1108 0, /* @tp_getset@ */
1109 0, /* @tp_base@ */
1110 0, /* @tp_dict@ */
1111 0, /* @tp_descr_get@ */
1112 0, /* @tp_descr_set@ */
1113 0, /* @tp_dictoffset@ */
1114 0, /* @tp_init@ */
1115 PyType_GenericAlloc, /* @tp_alloc@ */
1116 tlsprf_pynew, /* @tp_new@ */
3aa33042 1117 0, /* @tp_free@ */
d7ab1bab 1118 0 /* @tp_is_gc@ */
1119};
1120
1121/*----- DSA generator -----------------------------------------------------*/
1122
1123static PyObject *dsarand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
1124{
1125 char *p;
1126 int sz;
1127 PyObject *rc = 0;
1128 char *kwlist[] = { "seed", 0 };
1129
1130 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &p, &sz))
1131 goto end;
1132 rc = grand_dopywrap(ty, dsarand_create(p, sz), f_freeme);
1133end:
98963817 1134 return (rc);
d7ab1bab 1135}
1136
1137static PyObject *drget_seed(PyObject *me, void *hunoz)
1138{
1139 grand *r = GRAND_R(me);
1140 int n = r->ops->misc(r, DSARAND_SEEDSZ);
1141 PyObject *rc = bytestring_pywrap(0, n);
1142 r->ops->misc(r, DSARAND_GETSEED, PyString_AS_STRING(rc));
1143 return (rc);
1144}
1145
1146static PyGetSetDef dsarand_pygetset[] = {
1147#define GETSETNAME(op, name) dr##op##_##name
1148 GET (seed, "R.seed -> current generator seed")
1149#undef GETSETNAME
1150 { 0 }
1151};
1152
1153static PyTypeObject dsarand_pytype_skel = {
6d4db0bf 1154 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1155 "DSARand", /* @tp_name@ */
d7ab1bab 1156 sizeof(grand_pyobj), /* @tp_basicsize@ */
1157 0, /* @tp_itemsize@ */
1158
1159 grand_pydealloc, /* @tp_dealloc@ */
1160 0, /* @tp_print@ */
1161 0, /* @tp_getattr@ */
1162 0, /* @tp_setattr@ */
1163 0, /* @tp_compare@ */
1164 0, /* @tp_repr@ */
1165 0, /* @tp_as_number@ */
1166 0, /* @tp_as_sequence@ */
1167 0, /* @tp_as_mapping@ */
1168 0, /* @tp_hash@ */
1169 0, /* @tp_call@ */
1170 0, /* @tp_str@ */
1171 0, /* @tp_getattro@ */
1172 0, /* @tp_setattro@ */
1173 0, /* @tp_as_buffer@ */
1174 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1175 Py_TPFLAGS_BASETYPE,
1176
1177 /* @tp_doc@ */
06cd26e8 1178"DSARand(SEED): pseudorandom number generator for DSA parameters.",
d7ab1bab 1179
1180 0, /* @tp_traverse@ */
1181 0, /* @tp_clear@ */
1182 0, /* @tp_richcompare@ */
1183 0, /* @tp_weaklistoffset@ */
1184 0, /* @tp_iter@ */
963a6148 1185 0, /* @tp_iternext@ */
d7ab1bab 1186 0, /* @tp_methods@ */
1187 0, /* @tp_members@ */
1188 dsarand_pygetset, /* @tp_getset@ */
1189 0, /* @tp_base@ */
1190 0, /* @tp_dict@ */
1191 0, /* @tp_descr_get@ */
1192 0, /* @tp_descr_set@ */
1193 0, /* @tp_dictoffset@ */
1194 0, /* @tp_init@ */
1195 PyType_GenericAlloc, /* @tp_alloc@ */
1196 dsarand_pynew, /* @tp_new@ */
3aa33042 1197 0, /* @tp_free@ */
d7ab1bab 1198 0 /* @tp_is_gc@ */
1199};
1200
1201/*----- Blum-Blum-Shub generator ------------------------------------------*/
1202
1203static PyObject *bbs_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
1204{
1205 mp *n = 0, *x = MP_TWO;
1206 PyObject *rc = 0;
1207 char *kwlist[] = { "n", "x", 0 };
1208
1209 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&:new", kwlist,
1210 convmp, &n, convmp, &x))
1211 goto end;
1212 rc = grand_dopywrap(ty, bbs_rand(n, x), f_freeme);
1213end:
1214 mp_drop(n);
1215 mp_drop(x);
1216 return (rc);
1217}
1218
1219static PyObject *bbsmeth_step(PyObject *me, PyObject *arg)
1220{
1221 grand *r = GRAND_R(me); if (!PyArg_ParseTuple(arg, ":step")) return (0);
1222 r->ops->misc(r, BBS_STEP); RETURN_ME;
1223}
1224
1225static PyObject *bbsmeth_bits(PyObject *me, PyObject *arg)
1226{
1227 grand *r = GRAND_R(me); unsigned n; uint32 w;
1228 if (!PyArg_ParseTuple(arg, "O&:bits", convuint, &n)) goto end;
1229 if (n > 32) VALERR("can't get more than 32 bits");
fbca05a1 1230 r->ops->misc(r, BBS_BITS, n, &w); return (getulong(w));
d7ab1bab 1231end:
1232 return (0);
1233}
1234
1235static PyObject *bbsmeth_wrap(PyObject *me, PyObject *arg)
1236{
1237 grand *r = GRAND_R(me); if (!PyArg_ParseTuple(arg, ":wrap")) return (0);
1238 r->ops->misc(r, BBS_WRAP); RETURN_ME;
1239}
1240
1241static PyObject *bbsget_n(PyObject *me, void *hunoz)
1242{
1243 mp *x = MP_NEW; grand *r = GRAND_R(me);
1244 r->ops->misc(r, BBS_MOD, &x); return (mp_pywrap(x));
1245}
1246
1247static PyObject *bbsget_x(PyObject *me, void *hunoz)
1248{
1249 mp *x = MP_NEW; grand *r = GRAND_R(me);
1250 r->ops->misc(r, BBS_STATE, &x); return (mp_pywrap(x));
1251}
1252
1253static int bbsset_x(PyObject *me, PyObject *val, void *hunoz)
1254{
f368b46e 1255 mp *x = 0; grand *r = GRAND_R(me); int rc = -1; if (!x) NIERR("__del__");
6a080b28
MW		 1256 if ((x = getmp(val)) == 0) goto end;
1257 r->ops->misc(r, BBS_SET, x); rc = 0;
d7ab1bab 1258 end: mp_drop(x); return (rc);
1259}
1260
1261static PyObject *bbsget_stepsz(PyObject *me, void *hunoz)
1262{
1263 grand *r = GRAND_R(me);
1264 return (PyInt_FromLong(r->ops->misc(r, BBS_STEPSZ)));
1265}
1266
1267static PyMethodDef bbs_pymethods[] = {
1268#define METHNAME(name) bbsmeth_##name
1269 METH (step, "R.step(): steps the generator (not useful)")
1270 METH (bits, "R.bits(N) -> W: returns N bits (<= 32) from the generator")
1271 METH (wrap, "R.wrap(): flushes unused bits in internal buffer")
1272#undef METHNAME
1273 { 0 }
1274};
1275
1276static PyGetSetDef bbs_pygetset[] = {
1277#define GETSETNAME(op, name) bbs##op##_##name
1278 GET (n, "R.n -> Blum modulus")
1279 GETSET(x, "R.x -> current seed value")
1280 GET (stepsz, "R.stepsz -> number of bits generated per step")
1281#undef GETSETNAME
1282 { 0 }
1283};
1284
1285static PyTypeObject bbs_pytype_skel = {
6d4db0bf 1286 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1287 "BlumBlumShub", /* @tp_name@ */
d7ab1bab 1288 sizeof(grand_pyobj), /* @tp_basicsize@ */
1289 0, /* @tp_itemsize@ */
1290
1291 grand_pydealloc, /* @tp_dealloc@ */
1292 0, /* @tp_print@ */
1293 0, /* @tp_getattr@ */
1294 0, /* @tp_setattr@ */
1295 0, /* @tp_compare@ */
1296 0, /* @tp_repr@ */
1297 0, /* @tp_as_number@ */
1298 0, /* @tp_as_sequence@ */
1299 0, /* @tp_as_mapping@ */
1300 0, /* @tp_hash@ */
1301 0, /* @tp_call@ */
1302 0, /* @tp_str@ */
1303 0, /* @tp_getattro@ */
1304 0, /* @tp_setattro@ */
1305 0, /* @tp_as_buffer@ */
1306 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1307 Py_TPFLAGS_BASETYPE,
1308
1309 /* @tp_doc@ */
06cd26e8 1310"BlumBlumShub(N, [x = 2]): Blum-Blum-Shub pseudorandom number generator.",
d7ab1bab 1311
1312 0, /* @tp_traverse@ */
1313 0, /* @tp_clear@ */
1314 0, /* @tp_richcompare@ */
1315 0, /* @tp_weaklistoffset@ */
1316 0, /* @tp_iter@ */
963a6148 1317 0, /* @tp_iternext@ */
d7ab1bab 1318 bbs_pymethods, /* @tp_methods@ */
1319 0, /* @tp_members@ */
1320 bbs_pygetset, /* @tp_getset@ */
1321 0, /* @tp_base@ */
1322 0, /* @tp_dict@ */
1323 0, /* @tp_descr_get@ */
1324 0, /* @tp_descr_set@ */
1325 0, /* @tp_dictoffset@ */
1326 0, /* @tp_init@ */
1327 PyType_GenericAlloc, /* @tp_alloc@ */
1328 bbs_pynew, /* @tp_new@ */
3aa33042 1329 0, /* @tp_free@ */
d7ab1bab 1330 0 /* @tp_is_gc@ */
1331};
1332
1333typedef struct bbspriv_pyobj {
1334 grand_pyobj gr;
1335 bbs_priv bp;
1336} bbspriv_pyobj;
1337
1338#define BBSPRIV_BP(o) (&((bbspriv_pyobj *)(o))->bp)
1339
1340static PyObject *bbspriv_pynew(PyTypeObject *ty,
1341 PyObject *arg, PyObject *kw)
1342{
1343 mp *p = 0, *q = 0, *n = 0, *x = MP_TWO;
1344 bbspriv_pyobj *rc = 0;
1345 char *kwlist[] = { "n", "p", "q", "seed", 0 };
1346
1347 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&O&O&O&:new", kwlist,
1348 convmp, &n, convmp, &p, convmp, &q,
1349 convmp, &x))
1350 goto end;
1351 if (!n + !p + !q > 1) VALERR("must specify at least two of n, p, q");
1352 if (!n) n = mp_mul(MP_NEW, p, q);
1353 else if (!p) mp_div(&p, 0, n, q);
1354 else if (!q) mp_div(&q, 0, n, p);
1355 rc = (bbspriv_pyobj *)ty->tp_alloc(ty, 0);
1356 rc->gr.r = bbs_rand(n, x);
1357 rc->gr.f = f_freeme;
1358 rc->bp.p = MP_COPY(p);
1359 rc->bp.q = MP_COPY(q);
1360 rc->bp.n = MP_COPY(n);
1361end:
1362 mp_drop(p); mp_drop(q); mp_drop(n); mp_drop(x);
1363 return ((PyObject *)rc);
1364}
1365
1366static PyObject *meth__BBSPriv_generate(PyObject *me,
1367 PyObject *arg, PyObject *kw)
1368{
1369 bbs_priv bp = { 0 };
1370 mp *x = MP_TWO;
1371 pgev evt = { 0 };
1372 unsigned nbits, n = 0;
1373 grand *r = &rand_global;
1374 char *kwlist[] = { "class", "nbits", "event", "rng", "nsteps", "seed", 0 };
1375 bbspriv_pyobj *rc = 0;
1376
1377 if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO&|O&O&O&O&:generate", kwlist,
1378 &me, convuint, &nbits, convpgev, &evt,
1379 convgrand, &r, convuint, &n, convmp, &x))
1380 goto end;
1381 if (bbs_gen(&bp, nbits, r, n, evt.proc, evt.ctx))
1382 VALERR("prime genration failed");
1383 rc = PyObject_New(bbspriv_pyobj, bbspriv_pytype);
1384 rc->gr.r = bbs_rand(bp.n, x);
1385 rc->gr.f = f_freeme;
1386 rc->bp.p = MP_COPY(bp.p);
1387 rc->bp.q = MP_COPY(bp.q);
1388 rc->bp.n = MP_COPY(bp.n);
1389end:
1390 mp_drop(bp.p); mp_drop(bp.q); mp_drop(bp.n); mp_drop(x);
b2687a0a 1391 return ((PyObject *)rc);
d7ab1bab 1392}
1393
1394static void bbspriv_pydealloc(PyObject *me)
1395{
1396 bbs_priv *bp = BBSPRIV_BP(me);
1397 mp_drop(bp->n);
1398 mp_drop(bp->p);
1399 mp_drop(bp->q);
1400 grand_pydealloc(me);
1401}
1402
1403static PyObject *bpmeth_ff(PyObject *me, PyObject *arg)
1404{
1405 mp *n = 0; grand *r = GRAND_R(me); bbs_priv *bp = BBSPRIV_BP(me);
1406 if (!PyArg_ParseTuple(arg, "O&:ff", convmp, &n)) return (0);
1407 r->ops->misc(r, BBS_FF, bp, n); RETURN_ME;
1408}
1409
1410static PyObject *bpmeth_rew(PyObject *me, PyObject *arg)
1411{
1412 mp *n = 0; grand *r = GRAND_R(me); bbs_priv *bp = BBSPRIV_BP(me);
1413 if (!PyArg_ParseTuple(arg, "O&:rew", convmp, &n)) return (0);
1414 r->ops->misc(r, BBS_REW, bp, n); RETURN_ME;
1415}
1416
1417static PyObject *bpget_n(PyObject *me, void *hunoz)
1418 { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->n))); }
1419
1420static PyObject *bpget_p(PyObject *me, void *hunoz)
1421 { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->p))); }
1422
1423static PyObject *bpget_q(PyObject *me, void *hunoz)
1424 { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->q))); }
1425
1426static PyMethodDef bbspriv_pymethods[] = {
1427#define METHNAME(name) bpmeth_##name
1428 METH (ff, "R.ff(N): fast-forward N places")
1429 METH (rew, "R.rew(N): rewind N places")
1430#undef METHNAME
1431 { 0 }
1432};
1433
1434static PyGetSetDef bbspriv_pygetset[] = {
1435#define GETSETNAME(op, name) bp##op##_##name
b2687a0a
MW		 1436 GET (n, "R.n -> Blum modulus")
1437 GET (p, "R.p -> one of the factors of the modulus")
1438 GET (q, "R.q -> one of the factors of the modulus")
d7ab1bab 1439#undef GETSETNAME
1440 { 0 }
1441};
1442
1443static PyTypeObject bbspriv_pytype_skel = {
6d4db0bf 1444 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1445 "BBSPriv", /* @tp_name@ */
d7ab1bab 1446 sizeof(bbspriv_pyobj), /* @tp_basicsize@ */
1447 0, /* @tp_itemsize@ */
1448
1449 bbspriv_pydealloc, /* @tp_dealloc@ */
1450 0, /* @tp_print@ */
1451 0, /* @tp_getattr@ */
1452 0, /* @tp_setattr@ */
1453 0, /* @tp_compare@ */
1454 0, /* @tp_repr@ */
1455 0, /* @tp_as_number@ */
1456 0, /* @tp_as_sequence@ */
1457 0, /* @tp_as_mapping@ */
1458 0, /* @tp_hash@ */
1459 0, /* @tp_call@ */
1460 0, /* @tp_str@ */
1461 0, /* @tp_getattro@ */
1462 0, /* @tp_setattro@ */
1463 0, /* @tp_as_buffer@ */
1464 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1465 Py_TPFLAGS_BASETYPE,
1466
1467 /* @tp_doc@ */
06cd26e8
MW		 1468"BBSPriv(..., seed = 2]): Blum-Blum-Shub, with private key.\n\
1469 Keywords: n, p, q; must provide at least two",
d7ab1bab 1470
1471 0, /* @tp_traverse@ */
1472 0, /* @tp_clear@ */
1473 0, /* @tp_richcompare@ */
1474 0, /* @tp_weaklistoffset@ */
1475 0, /* @tp_iter@ */
963a6148 1476 0, /* @tp_iternext@ */
d7ab1bab 1477 bbspriv_pymethods, /* @tp_methods@ */
1478 0, /* @tp_members@ */
1479 bbspriv_pygetset, /* @tp_getset@ */
1480 0, /* @tp_base@ */
1481 0, /* @tp_dict@ */
1482 0, /* @tp_descr_get@ */
1483 0, /* @tp_descr_set@ */
1484 0, /* @tp_dictoffset@ */
1485 0, /* @tp_init@ */
1486 PyType_GenericAlloc, /* @tp_alloc@ */
1487 bbspriv_pynew, /* @tp_new@ */
3aa33042 1488 0, /* @tp_free@ */
d7ab1bab 1489 0 /* @tp_is_gc@ */
1490};
1491
1492/*----- Global stuff ------------------------------------------------------*/
1493
1494static PyMethodDef methods[] = {
1495#define METHNAME(name) meth_##name
1496 KWMETH(_BBSPriv_generate, "\
1497generate(NBITS, [event = pgen_nullev, rng = rand, nsteps = 0, seed = 2])")
1498#undef METHNAME
1499 { 0 }
1500};
1501
1502void rand_pyinit(void)
1503{
1504 INITTYPE(grand, root);
1505 INITTYPE(truerand, grand);
1506 INITTYPE(fibrand, grand);
1507 INITTYPE(lcrand, grand);
1508 INITTYPE(dsarand, grand);
1509 INITTYPE(bbs, grand);
1510 INITTYPE(bbspriv, bbs);
1511 INITTYPE(sslprf, grand);
1512 INITTYPE(tlsdx, grand);
1513 INITTYPE(tlsprf, grand);
850a4b48
MW		 1514 INITTYPE(gccrand, type);
1515 INITTYPE(gcrand, grand);
35e5469a 1516 INITTYPE(gclatinrand, gcrand);
d7ab1bab 1517 rand_noisesrc(RAND_GLOBAL, &noise_source);
1518 rand_seed(RAND_GLOBAL, 160);
1519 addmethods(methods);
1520}
1521
850a4b48
MW		 1522#define gccrand gccrand_info
1523GEN(gccrands, crand)
1524
d7ab1bab 1525void rand_pyinsert(PyObject *mod)
1526{
1527 INSERT("GRand", grand_pytype);
1528 INSERT("TrueRand", truerand_pytype);
1529 INSERT("LCRand", lcrand_pytype);
1530 INSERT("FibRand", fibrand_pytype);
1531 INSERT("SSLRand", sslprf_pytype);
1532 INSERT("TLSDataExpansion", tlsdx_pytype);
1533 INSERT("TLSPRF", tlsprf_pytype);
1534 INSERT("DSARand", dsarand_pytype);
1535 INSERT("BlumBlumShub", bbs_pytype);
1536 INSERT("BBSPriv", bbspriv_pytype);
850a4b48
MW		 1537 INSERT("GCCRand", gccrand_pytype);
1538 INSERT("GCRand", gcrand_pytype);
35e5469a 1539 INSERT("GCLatinRand", gclatinrand_pytype);
d7ab1bab 1540 rand_pyobj = grand_pywrap(&rand_global, 0); Py_INCREF(rand_pyobj);
850a4b48
MW		 1541 gccrands_dict = gccrands(); Py_INCREF(gccrands_dict);
1542 INSERT("gccrands", gccrands_dict);
d7ab1bab 1543 INSERT("rand", rand_pyobj);
1544}
1545
1546/*----- That's all, folks -------------------------------------------------*/
Catacomb cryptographic library -- Python bindings