3 * Random-number generators
5 * (c) 2004 Straylight/Edgeware
8 /*----- Licensing notice --------------------------------------------------*
10 * This file is part of the Python interface to Catacomb.
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.
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.
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.
27 /*----- Header files ------------------------------------------------------*/
29 #include "catacomb-python.h"
30 #include "algorithms.h"
32 /*----- Main code ---------------------------------------------------------*/
34 PyTypeObject *grand_pytype, *truerand_pytype;
35 PyTypeObject *lcrand_pytype, *fibrand_pytype;
36 PyTypeObject *dsarand_pytype, *bbs_pytype, *bbspriv_pytype;
37 PyTypeObject *sslprf_pytype, *tlsdx_pytype, *tlsprf_pytype;
40 static PyObject *gccrands_dict;
42 static PyObject *grand_dopywrap(PyTypeObject *ty, grand *r, unsigned f)
46 g = (grand_pyobj *)ty->tp_alloc(ty, 0);
49 return ((PyObject *)g);
52 PyObject *grand_pywrap(grand *r, unsigned f)
54 PyTypeObject *ty = grand_pytype;
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;
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;
67 return (grand_dopywrap(ty, r, f));
70 CONVFUNC(grand, grand *, GRAND_R)
72 static PyObject *grmeth_byte(PyObject *me, PyObject *arg)
74 if (!PyArg_ParseTuple(arg, ":byte")) return (0);
75 return (PyInt_FromLong(grand_byte(GRAND_R(me))));
78 static PyObject *grmeth_word(PyObject *me, PyObject *arg)
80 if (!PyArg_ParseTuple(arg, ":word")) return (0);
81 return (getulong(grand_word(GRAND_R(me))));
84 static PyObject *grmeth_range(PyObject *me, PyObject *arg)
90 if (!PyArg_ParseTuple(arg, "O:range", &m)) return (0);
92 long mm = PyInt_AS_LONG(m);
96 return (PyInt_FromLong(grand_range(GRAND_R(me), mm)));
98 if ((x = getmp(m)) == 0)
102 y = mprand_range(MP_NEW, x, GRAND_R(me), 0);
104 return (mp_pywrap(y));
106 TYERR("range must be nonnegative");
112 static PyObject *grmeth_mp(PyObject *me, PyObject *arg, PyObject *kw)
116 char *kwlist[] = { "bits", "or", 0 };
118 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&:mp", kwlist,
119 convszt, &l, convmpw, &o))
121 return (mp_pywrap(mprand(MP_NEW, l, GRAND_R(me), o)));
126 static PyObject *grmeth_block(PyObject *me, PyObject *arg)
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);
138 static int checkop(grand *r, unsigned op, const char *what)
140 if (r->ops->misc(r, GRAND_CHECK, op))
142 PyErr_Format(PyExc_TypeError, "operation %s not supported", what);
146 static PyObject *grmeth_seedint(PyObject *me, PyObject *arg)
149 grand *r = GRAND_R(me);
150 if (!PyArg_ParseTuple(arg, "i:seedint", &i) ||
151 checkop(r, GRAND_SEEDINT, "seedint"))
153 r->ops->misc(r, GRAND_SEEDINT, i);
159 static PyObject *grmeth_seedword(PyObject *me, PyObject *arg)
162 grand *r = GRAND_R(me);
163 if (!PyArg_ParseTuple(arg, "O&:seedword", convu32, &u) ||
164 checkop(r, GRAND_SEEDUINT32, "seedword"))
166 r->ops->misc(r, GRAND_SEEDUINT32, u);
172 static PyObject *grmeth_seedblock(PyObject *me, PyObject *arg)
176 grand *r = GRAND_R(me);
177 if (!PyArg_ParseTuple(arg, "s#:seedblock", &p, &n) ||
178 checkop(r, GRAND_SEEDBLOCK, "seedblock"))
180 r->ops->misc(r, GRAND_SEEDBLOCK, p, (size_t)n);
186 static PyObject *grmeth_seedmp(PyObject *me, PyObject *arg)
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)
195 r->ops->misc(r, GRAND_SEEDMP, xx);
202 static PyObject *grmeth_seedrand(PyObject *me, PyObject *arg, PyObject *kw)
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,
209 checkop(r, GRAND_SEEDRAND, "seedrand"))
211 r->ops->misc(r, GRAND_SEEDRAND, rr);
217 static PyObject *grmeth_mask(PyObject *me, PyObject *arg)
219 grand *r = GRAND_R(me);
224 if (!PyArg_ParseTuple(arg, "s#:mask", &p, &sz)) return (0);
225 rc = bytestring_pywrap(0, sz);
226 q = PyString_AS_STRING(rc);
228 while (sz--) *q++ ^= *p++;
232 static void grand_pydealloc(PyObject *me)
234 grand_pyobj *g = (grand_pyobj *)me;
240 static PyObject *grget_name(PyObject *me, void *hunoz)
241 { return (PyString_FromString(GRAND_R(me)->ops->name)); }
243 static PyObject *grget_cryptop(PyObject *me, void *hunoz)
244 { return (getbool(GRAND_R(me)->ops->f & GRAND_CRYPTO)); }
246 static 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?")
254 static 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)")
271 static PyTypeObject grand_pytype_skel = {
272 PyObject_HEAD_INIT(0) 0, /* Header */
273 "GRand", /* @tp_name@ */
274 sizeof(grand_pyobj), /* @tp_basicsize@ */
275 0, /* @tp_itemsize@ */
277 grand_pydealloc, /* @tp_dealloc@ */
279 0, /* @tp_getattr@ */
280 0, /* @tp_setattr@ */
281 0, /* @tp_compare@ */
283 0, /* @tp_as_number@ */
284 0, /* @tp_as_sequence@ */
285 0, /* @tp_as_mapping@ */
289 0, /* @tp_getattro@ */
290 0, /* @tp_setattro@ */
291 0, /* @tp_as_buffer@ */
292 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
296 "Generic random number source.",
298 0, /* @tp_traverse@ */
300 0, /* @tp_richcompare@ */
301 0, /* @tp_weaklistoffset@ */
303 0, /* @tp_iternext@ */
304 grand_pymethods, /* @tp_methods@ */
305 0, /* @tp_members@ */
306 grand_pygetset, /* @tp_getset@ */
309 0, /* @tp_descr_get@ */
310 0, /* @tp_descr_set@ */
311 0, /* @tp_dictoffset@ */
313 PyType_GenericAlloc, /* @tp_alloc@ */
314 abstract_pynew, /* @tp_new@ */
319 static PyObject *lcrand_pynew(PyTypeObject *me, PyObject *arg, PyObject *kw)
322 char *kwlist[] = { "seed", 0 };
323 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:new", kwlist, convu32, &n))
325 return (grand_dopywrap(lcrand_pytype, lcrand_create(n), f_freeme));
328 static PyTypeObject lcrand_pytype_skel = {
329 PyObject_HEAD_INIT(0) 0, /* Header */
330 "LCRand", /* @tp_name@ */
331 sizeof(grand_pyobj), /* @tp_basicsize@ */
332 0, /* @tp_itemsize@ */
334 grand_pydealloc, /* @tp_dealloc@ */
336 0, /* @tp_getattr@ */
337 0, /* @tp_setattr@ */
338 0, /* @tp_compare@ */
340 0, /* @tp_as_number@ */
341 0, /* @tp_as_sequence@ */
342 0, /* @tp_as_mapping@ */
346 0, /* @tp_getattro@ */
347 0, /* @tp_setattro@ */
348 0, /* @tp_as_buffer@ */
349 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
353 "Linear congruential generator.",
355 0, /* @tp_traverse@ */
357 0, /* @tp_richcompare@ */
358 0, /* @tp_weaklistoffset@ */
360 0, /* @tp_iternext@ */
361 0, /* @tp_methods@ */
362 0, /* @tp_members@ */
366 0, /* @tp_descr_get@ */
367 0, /* @tp_descr_set@ */
368 0, /* @tp_dictoffset@ */
370 PyType_GenericAlloc, /* @tp_alloc@ */
371 lcrand_pynew, /* @tp_new@ */
376 static PyObject *fibrand_pynew(PyTypeObject *me, PyObject *arg, PyObject *kw)
379 char *kwlist[] = { "seed", 0 };
380 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:new", kwlist, convu32, &n))
382 return (grand_dopywrap(fibrand_pytype, fibrand_create(n), f_freeme));
385 static PyTypeObject fibrand_pytype_skel = {
386 PyObject_HEAD_INIT(0) 0, /* Header */
387 "FibRand", /* @tp_name@ */
388 sizeof(grand_pyobj), /* @tp_basicsize@ */
389 0, /* @tp_itemsize@ */
391 grand_pydealloc, /* @tp_dealloc@ */
393 0, /* @tp_getattr@ */
394 0, /* @tp_setattr@ */
395 0, /* @tp_compare@ */
397 0, /* @tp_as_number@ */
398 0, /* @tp_as_sequence@ */
399 0, /* @tp_as_mapping@ */
403 0, /* @tp_getattro@ */
404 0, /* @tp_setattro@ */
405 0, /* @tp_as_buffer@ */
406 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
410 "Fibonacci generator.",
412 0, /* @tp_traverse@ */
414 0, /* @tp_richcompare@ */
415 0, /* @tp_weaklistoffset@ */
417 0, /* @tp_iternext@ */
418 0, /* @tp_methods@ */
419 0, /* @tp_members@ */
423 0, /* @tp_descr_get@ */
424 0, /* @tp_descr_set@ */
425 0, /* @tp_dictoffset@ */
427 PyType_GenericAlloc, /* @tp_alloc@ */
428 fibrand_pynew, /* @tp_new@ */
433 /*----- True random generator ---------------------------------------------*/
435 static PyObject *trmeth_gate(PyObject *me, PyObject *arg)
437 grand *r = GRAND_R(me);
438 if (!PyArg_ParseTuple(arg, ":gate")) return (0);
439 r->ops->misc(r, RAND_GATE);
443 static PyObject *trmeth_stretch(PyObject *me, PyObject *arg)
445 grand *r = GRAND_R(me);
446 if (!PyArg_ParseTuple(arg, ":stretch")) return (0);
447 r->ops->misc(r, RAND_STRETCH);
451 static PyObject *trmeth_add(PyObject *me, PyObject *arg)
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))
457 r->ops->misc(r, RAND_ADD, p, (size_t)n, goodbits);
461 static PyObject *trmeth_key(PyObject *me, PyObject *arg)
463 grand *r = GRAND_R(me);
465 if (!PyArg_ParseTuple(arg, "s#:key", &p, &n)) return (0);
466 r->ops->misc(r, RAND_KEY, p, (size_t)n);
470 static PyObject *trmeth_seed(PyObject *me, PyObject *arg)
472 grand *r = GRAND_R(me);
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);
482 static PyObject *trmeth_timer(PyObject *me, PyObject *arg)
484 grand *r = GRAND_R(me);
485 if (!PyArg_ParseTuple(arg, ":timer")) return (0);
486 r->ops->misc(r, RAND_TIMER);
490 static PyObject *truerand_pynew(PyTypeObject *ty,
491 PyObject *arg, PyObject *kw)
493 char *kwlist[] = { 0 };
496 if (PyArg_ParseTupleAndKeywords(arg, kw, ":new", kwlist)) goto end;
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);
505 static 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)")
511 METH (add, "R.add(BYTES, GOODBITS")
512 METH (timer, "R.timer()")
517 static PyObject *trget_goodbits(PyObject *me, void *hunoz)
519 grand *r = GRAND_R(me);
520 return (PyInt_FromLong(r->ops->misc(r, RAND_GOODBITS)));
523 static PyGetSetDef truerand_pygetset[] = {
524 #define GETSETNAME(op, name) tr##op##_##name
525 GET (goodbits, "R.goodbits -> good bits of entropy remaining")
530 static PyTypeObject truerand_pytype_skel = {
531 PyObject_HEAD_INIT(0) 0, /* Header */
532 "TrueRand", /* @tp_name@ */
533 sizeof(grand_pyobj), /* @tp_basicsize@ */
534 0, /* @tp_itemsize@ */
536 grand_pydealloc, /* @tp_dealloc@ */
538 0, /* @tp_getattr@ */
539 0, /* @tp_setattr@ */
540 0, /* @tp_compare@ */
542 0, /* @tp_as_number@ */
543 0, /* @tp_as_sequence@ */
544 0, /* @tp_as_mapping@ */
548 0, /* @tp_getattro@ */
549 0, /* @tp_setattro@ */
550 0, /* @tp_as_buffer@ */
551 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
555 "True random number source.",
557 0, /* @tp_traverse@ */
559 0, /* @tp_richcompare@ */
560 0, /* @tp_weaklistoffset@ */
562 0, /* @tp_iternext@ */
563 truerand_pymethods, /* @tp_methods@ */
564 0, /* @tp_members@ */
565 truerand_pygetset, /* @tp_getset@ */
568 0, /* @tp_descr_get@ */
569 0, /* @tp_descr_set@ */
570 0, /* @tp_dictoffset@ */
572 PyType_GenericAlloc, /* @tp_alloc@ */
573 truerand_pynew, /* @tp_new@ */
578 /*----- Generators from symmetric encryption algorithms -------------------*/
580 static PyTypeObject *gccrand_pytype, *gcrand_pytype;
582 typedef grand *gcrand_func(const void *, size_t sz);
583 typedef grand *gcirand_func(const void *, size_t sz, uint32);
584 typedef struct gccrand_info {
593 typedef struct gccrand_pyobj {
595 const gccrand_info *info;
597 #define GCCRAND_INFO(o) (((gccrand_pyobj *)(o))->info)
599 #define GCCRAND_DEF(name, ksz, func, f) \
600 static const gccrand_info func##_info = \
601 { name, ksz, f, (gcrand_func *)func };
604 static const gccrand_info *const gcrandtab[] = {
605 #define GCCRAND_ENTRY(name, ksz, func, f) &func##_info,
610 static PyObject *gcrand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
612 const gccrand_info *info = GCCRAND_INFO(ty);
613 static char *kwlist[] = { "key", 0 };
617 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &n))
619 if (keysz(n, info->keysz) != n) VALERR("bad key length");
620 return (grand_dopywrap(ty, info->func(k, n), f_freeme));
625 static PyObject *gcirand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
627 const gccrand_info *info = GCCRAND_INFO(ty);
629 static char *kwlist[] = { "key", "i", 0 };
633 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#O&:new", kwlist,
634 &k, &n, convu32, &i))
636 if (keysz(n, info->keysz) != n) VALERR("bad key length");
637 return (grand_dopywrap(ty,
638 ((gcirand_func *)info->func)(k, n, i),
644 static PyObject *gccrand_pywrap(const gccrand_info *info)
646 gccrand_pyobj *g = newtype(gccrand_pytype, 0, info->name);
648 g->ty.ht_type.tp_basicsize = sizeof(grand_pyobj);
649 g->ty.ht_type.tp_base = gcrand_pytype;
650 Py_INCREF(gcrand_pytype);
651 g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT |
652 Py_TPFLAGS_BASETYPE |
653 Py_TPFLAGS_HEAPTYPE);
654 g->ty.ht_type.tp_alloc = PyType_GenericAlloc;
655 g->ty.ht_type.tp_free = 0;
656 if (info->f & RNGF_INT)
657 g->ty.ht_type.tp_new = gcirand_pynew;
659 g->ty.ht_type.tp_new = gcrand_pynew;
660 typeready(&g->ty.ht_type);
661 return ((PyObject *)g);
664 static PyObject *gccrget_name(PyObject *me, void *hunoz)
665 { return (PyString_FromString(GCCRAND_INFO(me)->name)); }
666 static PyObject *gccrget_keysz(PyObject *me, void *hunoz)
667 { return (keysz_pywrap(GCCRAND_INFO(me)->keysz)); }
669 static PyGetSetDef gccrand_pygetset[] = {
670 #define GETSETNAME(op, name) gccr##op##_##name
671 GET (keysz, "CR.keysz -> acceptable key sizes")
672 GET (name, "CR.name -> name of this kind of generator")
677 static PyTypeObject gccrand_pytype_skel = {
678 PyObject_HEAD_INIT(0) 0, /* Header */
679 "GCCRand", /* @tp_name@ */
680 sizeof(gccrand_pyobj), /* @tp_basicsize@ */
681 0, /* @tp_itemsize@ */
683 0, /* @tp_dealloc@ */
685 0, /* @tp_getattr@ */
686 0, /* @tp_setattr@ */
687 0, /* @tp_compare@ */
689 0, /* @tp_as_number@ */
690 0, /* @tp_as_sequence@ */
691 0, /* @tp_as_mapping@ */
695 0, /* @tp_getattro@ */
696 0, /* @tp_setattro@ */
697 0, /* @tp_as_buffer@ */
698 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
702 "Metaclass for symmetric crypto-based generators.",
704 0, /* @tp_traverse@ */
706 0, /* @tp_richcompare@ */
707 0, /* @tp_weaklistoffset@ */
709 0, /* @tp_iternext@ */
710 0, /* @tp_methods@ */
711 0, /* @tp_members@ */
712 gccrand_pygetset, /* @tp_getset@ */
715 0, /* @tp_descr_get@ */
716 0, /* @tp_descr_set@ */
717 0, /* @tp_dictoffset@ */
719 PyType_GenericAlloc, /* @tp_alloc@ */
720 abstract_pynew, /* @tp_new@ */
725 static PyTypeObject gcrand_pytype_skel = {
726 PyObject_HEAD_INIT(0) 0, /* Header */
727 "GCRand", /* @tp_name@ */
728 sizeof(grand_pyobj), /* @tp_basicsize@ */
729 0, /* @tp_itemsize@ */
731 grand_pydealloc, /* @tp_dealloc@ */
733 0, /* @tp_getattr@ */
734 0, /* @tp_setattr@ */
735 0, /* @tp_compare@ */
737 0, /* @tp_as_number@ */
738 0, /* @tp_as_sequence@ */
739 0, /* @tp_as_mapping@ */
743 0, /* @tp_getattro@ */
744 0, /* @tp_setattro@ */
745 0, /* @tp_as_buffer@ */
746 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
750 "Abstract base class for symmetric crypto-based generators.",
752 0, /* @tp_traverse@ */
754 0, /* @tp_richcompare@ */
755 0, /* @tp_weaklistoffset@ */
757 0, /* @tp_iternext@ */
758 0, /* @tp_methods@ */
759 0, /* @tp_members@ */
763 0, /* @tp_descr_get@ */
764 0, /* @tp_descr_set@ */
765 0, /* @tp_dictoffset@ */
767 PyType_GenericAlloc, /* @tp_alloc@ */
768 abstract_pynew, /* @tp_new@ */
773 /*----- SSL and TLS generators --------------------------------------------*/
775 static PyObject *sslprf_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
779 const gchash *hco = &md5, *hci = &sha;
781 char *kwlist[] = { "key", "seed", "ohash", "ihash", 0 };
783 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#|O&O&:new", kwlist,
785 convgchash, &hco, convgchash, &hci))
787 rc = grand_dopywrap(ty, sslprf_rand(hco, hci, k, ksz, s, ssz), f_freeme);
792 static PyObject *tlsdx_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
796 const gcmac *mc = &sha_hmac;
798 char *kwlist[] = { "key", "seed", "mac", 0 };
800 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#|O&:new", kwlist,
804 rc = grand_dopywrap(ty, tlsdx_rand(mc, k, ksz, s, ssz), f_freeme);
809 static PyObject *tlsprf_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
813 const gcmac *mcl = &md5_hmac, *mcr = &sha_hmac;
815 char *kwlist[] = { "key", "seed", "lmac", "rmac", 0 };
817 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#|O&O&:new", kwlist,
819 convgcmac, &mcl, convgcmac, &mcr))
821 rc = grand_dopywrap(ty, tlsprf_rand(mcl, mcr, k, ksz, s, ssz), f_freeme);
826 static PyTypeObject sslprf_pytype_skel = {
827 PyObject_HEAD_INIT(0) 0, /* Header */
828 "SSLRand", /* @tp_name@ */
829 sizeof(grand_pyobj), /* @tp_basicsize@ */
830 0, /* @tp_itemsize@ */
832 grand_pydealloc, /* @tp_dealloc@ */
834 0, /* @tp_getattr@ */
835 0, /* @tp_setattr@ */
836 0, /* @tp_compare@ */
838 0, /* @tp_as_number@ */
839 0, /* @tp_as_sequence@ */
840 0, /* @tp_as_mapping@ */
844 0, /* @tp_getattro@ */
845 0, /* @tp_setattro@ */
846 0, /* @tp_as_buffer@ */
847 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
851 "Random number generator for SSL master secret.",
853 0, /* @tp_traverse@ */
855 0, /* @tp_richcompare@ */
856 0, /* @tp_weaklistoffset@ */
858 0, /* @tp_iternext@ */
859 0, /* @tp_methods@ */
860 0, /* @tp_members@ */
864 0, /* @tp_descr_get@ */
865 0, /* @tp_descr_set@ */
866 0, /* @tp_dictoffset@ */
868 PyType_GenericAlloc, /* @tp_alloc@ */
869 sslprf_pynew, /* @tp_new@ */
874 static PyTypeObject tlsdx_pytype_skel = {
875 PyObject_HEAD_INIT(0) 0, /* Header */
876 "TLSDataExpansion", /* @tp_name@ */
877 sizeof(grand_pyobj), /* @tp_basicsize@ */
878 0, /* @tp_itemsize@ */
880 grand_pydealloc, /* @tp_dealloc@ */
882 0, /* @tp_getattr@ */
883 0, /* @tp_setattr@ */
884 0, /* @tp_compare@ */
886 0, /* @tp_as_number@ */
887 0, /* @tp_as_sequence@ */
888 0, /* @tp_as_mapping@ */
892 0, /* @tp_getattro@ */
893 0, /* @tp_setattro@ */
894 0, /* @tp_as_buffer@ */
895 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
899 "TLS data expansion function.",
901 0, /* @tp_traverse@ */
903 0, /* @tp_richcompare@ */
904 0, /* @tp_weaklistoffset@ */
906 0, /* @tp_iternext@ */
907 0, /* @tp_methods@ */
908 0, /* @tp_members@ */
912 0, /* @tp_descr_get@ */
913 0, /* @tp_descr_set@ */
914 0, /* @tp_dictoffset@ */
916 PyType_GenericAlloc, /* @tp_alloc@ */
917 tlsdx_pynew, /* @tp_new@ */
922 static PyTypeObject tlsprf_pytype_skel = {
923 PyObject_HEAD_INIT(0) 0, /* Header */
924 "TLSPRF", /* @tp_name@ */
925 sizeof(grand_pyobj), /* @tp_basicsize@ */
926 0, /* @tp_itemsize@ */
928 grand_pydealloc, /* @tp_dealloc@ */
930 0, /* @tp_getattr@ */
931 0, /* @tp_setattr@ */
932 0, /* @tp_compare@ */
934 0, /* @tp_as_number@ */
935 0, /* @tp_as_sequence@ */
936 0, /* @tp_as_mapping@ */
940 0, /* @tp_getattro@ */
941 0, /* @tp_setattro@ */
942 0, /* @tp_as_buffer@ */
943 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
947 "TLS pseudorandom function.",
949 0, /* @tp_traverse@ */
951 0, /* @tp_richcompare@ */
952 0, /* @tp_weaklistoffset@ */
954 0, /* @tp_iternext@ */
955 0, /* @tp_methods@ */
956 0, /* @tp_members@ */
960 0, /* @tp_descr_get@ */
961 0, /* @tp_descr_set@ */
962 0, /* @tp_dictoffset@ */
964 PyType_GenericAlloc, /* @tp_alloc@ */
965 tlsprf_pynew, /* @tp_new@ */
970 /*----- DSA generator -----------------------------------------------------*/
972 static PyObject *dsarand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
977 char *kwlist[] = { "seed", 0 };
979 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &p, &sz))
981 rc = grand_dopywrap(ty, dsarand_create(p, sz), f_freeme);
986 static PyObject *drget_seed(PyObject *me, void *hunoz)
988 grand *r = GRAND_R(me);
989 int n = r->ops->misc(r, DSARAND_SEEDSZ);
990 PyObject *rc = bytestring_pywrap(0, n);
991 r->ops->misc(r, DSARAND_GETSEED, PyString_AS_STRING(rc));
995 static PyGetSetDef dsarand_pygetset[] = {
996 #define GETSETNAME(op, name) dr##op##_##name
997 GET (seed, "R.seed -> current generator seed")
1002 static PyTypeObject dsarand_pytype_skel = {
1003 PyObject_HEAD_INIT(0) 0, /* Header */
1004 "DSARand", /* @tp_name@ */
1005 sizeof(grand_pyobj), /* @tp_basicsize@ */
1006 0, /* @tp_itemsize@ */
1008 grand_pydealloc, /* @tp_dealloc@ */
1010 0, /* @tp_getattr@ */
1011 0, /* @tp_setattr@ */
1012 0, /* @tp_compare@ */
1014 0, /* @tp_as_number@ */
1015 0, /* @tp_as_sequence@ */
1016 0, /* @tp_as_mapping@ */
1020 0, /* @tp_getattro@ */
1021 0, /* @tp_setattro@ */
1022 0, /* @tp_as_buffer@ */
1023 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1024 Py_TPFLAGS_BASETYPE,
1027 "Pseudorandom number generator for constructing DSA parameters.",
1029 0, /* @tp_traverse@ */
1031 0, /* @tp_richcompare@ */
1032 0, /* @tp_weaklistoffset@ */
1034 0, /* @tp_iternext@ */
1035 0, /* @tp_methods@ */
1036 0, /* @tp_members@ */
1037 dsarand_pygetset, /* @tp_getset@ */
1040 0, /* @tp_descr_get@ */
1041 0, /* @tp_descr_set@ */
1042 0, /* @tp_dictoffset@ */
1044 PyType_GenericAlloc, /* @tp_alloc@ */
1045 dsarand_pynew, /* @tp_new@ */
1050 /*----- Blum-Blum-Shub generator ------------------------------------------*/
1052 static PyObject *bbs_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
1054 mp *n = 0, *x = MP_TWO;
1056 char *kwlist[] = { "n", "x", 0 };
1058 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&:new", kwlist,
1059 convmp, &n, convmp, &x))
1061 rc = grand_dopywrap(ty, bbs_rand(n, x), f_freeme);
1068 static PyObject *bbsmeth_step(PyObject *me, PyObject *arg)
1070 grand *r = GRAND_R(me); if (!PyArg_ParseTuple(arg, ":step")) return (0);
1071 r->ops->misc(r, BBS_STEP); RETURN_ME;
1074 static PyObject *bbsmeth_bits(PyObject *me, PyObject *arg)
1076 grand *r = GRAND_R(me); unsigned n; uint32 w;
1077 if (!PyArg_ParseTuple(arg, "O&:bits", convuint, &n)) goto end;
1078 if (n > 32) VALERR("can't get more than 32 bits");
1079 r->ops->misc(r, BBS_BITS, n, &w); return (getulong(w));
1084 static PyObject *bbsmeth_wrap(PyObject *me, PyObject *arg)
1086 grand *r = GRAND_R(me); if (!PyArg_ParseTuple(arg, ":wrap")) return (0);
1087 r->ops->misc(r, BBS_WRAP); RETURN_ME;
1090 static PyObject *bbsget_n(PyObject *me, void *hunoz)
1092 mp *x = MP_NEW; grand *r = GRAND_R(me);
1093 r->ops->misc(r, BBS_MOD, &x); return (mp_pywrap(x));
1096 static PyObject *bbsget_x(PyObject *me, void *hunoz)
1098 mp *x = MP_NEW; grand *r = GRAND_R(me);
1099 r->ops->misc(r, BBS_STATE, &x); return (mp_pywrap(x));
1102 static int bbsset_x(PyObject *me, PyObject *val, void *hunoz)
1104 mp *x = 0; grand *r = GRAND_R(me); int rc = -1; if (!x) NIERR("__del__");
1105 if ((x = getmp(val)) == 0) goto end; r->ops->misc(r, BBS_SET, x); rc = 0;
1106 end: mp_drop(x); return (rc);
1109 static PyObject *bbsget_stepsz(PyObject *me, void *hunoz)
1111 grand *r = GRAND_R(me);
1112 return (PyInt_FromLong(r->ops->misc(r, BBS_STEPSZ)));
1115 static PyMethodDef bbs_pymethods[] = {
1116 #define METHNAME(name) bbsmeth_##name
1117 METH (step, "R.step(): steps the generator (not useful)")
1118 METH (bits, "R.bits(N) -> W: returns N bits (<= 32) from the generator")
1119 METH (wrap, "R.wrap(): flushes unused bits in internal buffer")
1124 static PyGetSetDef bbs_pygetset[] = {
1125 #define GETSETNAME(op, name) bbs##op##_##name
1126 GET (n, "R.n -> Blum modulus")
1127 GETSET(x, "R.x -> current seed value")
1128 GET (stepsz, "R.stepsz -> number of bits generated per step")
1133 static PyTypeObject bbs_pytype_skel = {
1134 PyObject_HEAD_INIT(0) 0, /* Header */
1135 "BlumBlumShub", /* @tp_name@ */
1136 sizeof(grand_pyobj), /* @tp_basicsize@ */
1137 0, /* @tp_itemsize@ */
1139 grand_pydealloc, /* @tp_dealloc@ */
1141 0, /* @tp_getattr@ */
1142 0, /* @tp_setattr@ */
1143 0, /* @tp_compare@ */
1145 0, /* @tp_as_number@ */
1146 0, /* @tp_as_sequence@ */
1147 0, /* @tp_as_mapping@ */
1151 0, /* @tp_getattro@ */
1152 0, /* @tp_setattro@ */
1153 0, /* @tp_as_buffer@ */
1154 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1155 Py_TPFLAGS_BASETYPE,
1158 "Blum-Blum-Shub strong pseudorandom number generator.",
1160 0, /* @tp_traverse@ */
1162 0, /* @tp_richcompare@ */
1163 0, /* @tp_weaklistoffset@ */
1165 0, /* @tp_iternext@ */
1166 bbs_pymethods, /* @tp_methods@ */
1167 0, /* @tp_members@ */
1168 bbs_pygetset, /* @tp_getset@ */
1171 0, /* @tp_descr_get@ */
1172 0, /* @tp_descr_set@ */
1173 0, /* @tp_dictoffset@ */
1175 PyType_GenericAlloc, /* @tp_alloc@ */
1176 bbs_pynew, /* @tp_new@ */
1181 typedef struct bbspriv_pyobj {
1186 #define BBSPRIV_BP(o) (&((bbspriv_pyobj *)(o))->bp)
1188 static PyObject *bbspriv_pynew(PyTypeObject *ty,
1189 PyObject *arg, PyObject *kw)
1191 mp *p = 0, *q = 0, *n = 0, *x = MP_TWO;
1192 bbspriv_pyobj *rc = 0;
1193 char *kwlist[] = { "n", "p", "q", "seed", 0 };
1195 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&O&O&O&:new", kwlist,
1196 convmp, &n, convmp, &p, convmp, &q,
1199 if (!n + !p + !q > 1) VALERR("must specify at least two of n, p, q");
1200 if (!n) n = mp_mul(MP_NEW, p, q);
1201 else if (!p) mp_div(&p, 0, n, q);
1202 else if (!q) mp_div(&q, 0, n, p);
1203 rc = (bbspriv_pyobj *)ty->tp_alloc(ty, 0);
1204 rc->gr.r = bbs_rand(n, x);
1205 rc->gr.f = f_freeme;
1206 rc->bp.p = MP_COPY(p);
1207 rc->bp.q = MP_COPY(q);
1208 rc->bp.n = MP_COPY(n);
1210 mp_drop(p); mp_drop(q); mp_drop(n); mp_drop(x);
1211 return ((PyObject *)rc);
1214 static PyObject *meth__BBSPriv_generate(PyObject *me,
1215 PyObject *arg, PyObject *kw)
1217 bbs_priv bp = { 0 };
1220 unsigned nbits, n = 0;
1221 grand *r = &rand_global;
1222 char *kwlist[] = { "class", "nbits", "event", "rng", "nsteps", "seed", 0 };
1223 bbspriv_pyobj *rc = 0;
1225 if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO&|O&O&O&O&:generate", kwlist,
1226 &me, convuint, &nbits, convpgev, &evt,
1227 convgrand, &r, convuint, &n, convmp, &x))
1229 if (bbs_gen(&bp, nbits, r, n, evt.proc, evt.ctx))
1230 VALERR("prime genration failed");
1231 rc = PyObject_New(bbspriv_pyobj, bbspriv_pytype);
1232 rc->gr.r = bbs_rand(bp.n, x);
1233 rc->gr.f = f_freeme;
1234 rc->bp.p = MP_COPY(bp.p);
1235 rc->bp.q = MP_COPY(bp.q);
1236 rc->bp.n = MP_COPY(bp.n);
1238 mp_drop(bp.p); mp_drop(bp.q); mp_drop(bp.n); mp_drop(x);
1239 return ((PyObject *)rc);
1242 static void bbspriv_pydealloc(PyObject *me)
1244 bbs_priv *bp = BBSPRIV_BP(me);
1248 grand_pydealloc(me);
1251 static PyObject *bpmeth_ff(PyObject *me, PyObject *arg)
1253 mp *n = 0; grand *r = GRAND_R(me); bbs_priv *bp = BBSPRIV_BP(me);
1254 if (!PyArg_ParseTuple(arg, "O&:ff", convmp, &n)) return (0);
1255 r->ops->misc(r, BBS_FF, bp, n); RETURN_ME;
1258 static PyObject *bpmeth_rew(PyObject *me, PyObject *arg)
1260 mp *n = 0; grand *r = GRAND_R(me); bbs_priv *bp = BBSPRIV_BP(me);
1261 if (!PyArg_ParseTuple(arg, "O&:rew", convmp, &n)) return (0);
1262 r->ops->misc(r, BBS_REW, bp, n); RETURN_ME;
1265 static PyObject *bpget_n(PyObject *me, void *hunoz)
1266 { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->n))); }
1268 static PyObject *bpget_p(PyObject *me, void *hunoz)
1269 { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->p))); }
1271 static PyObject *bpget_q(PyObject *me, void *hunoz)
1272 { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->q))); }
1274 static PyMethodDef bbspriv_pymethods[] = {
1275 #define METHNAME(name) bpmeth_##name
1276 METH (ff, "R.ff(N): fast-forward N places")
1277 METH (rew, "R.rew(N): rewind N places")
1282 static PyGetSetDef bbspriv_pygetset[] = {
1283 #define GETSETNAME(op, name) bp##op##_##name
1284 GET (n, "R.n -> Blum modulus")
1285 GET (p, "R.p -> one of the factors of the modulus")
1286 GET (q, "R.q -> one of the factors of the modulus")
1291 static PyTypeObject bbspriv_pytype_skel = {
1292 PyObject_HEAD_INIT(0) 0, /* Header */
1293 "BBSPriv", /* @tp_name@ */
1294 sizeof(bbspriv_pyobj), /* @tp_basicsize@ */
1295 0, /* @tp_itemsize@ */
1297 bbspriv_pydealloc, /* @tp_dealloc@ */
1299 0, /* @tp_getattr@ */
1300 0, /* @tp_setattr@ */
1301 0, /* @tp_compare@ */
1303 0, /* @tp_as_number@ */
1304 0, /* @tp_as_sequence@ */
1305 0, /* @tp_as_mapping@ */
1309 0, /* @tp_getattro@ */
1310 0, /* @tp_setattro@ */
1311 0, /* @tp_as_buffer@ */
1312 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1313 Py_TPFLAGS_BASETYPE,
1316 "Blum-Blum-Shub strong pseudorandom generator, with private key.",
1318 0, /* @tp_traverse@ */
1320 0, /* @tp_richcompare@ */
1321 0, /* @tp_weaklistoffset@ */
1323 0, /* @tp_iternext@ */
1324 bbspriv_pymethods, /* @tp_methods@ */
1325 0, /* @tp_members@ */
1326 bbspriv_pygetset, /* @tp_getset@ */
1329 0, /* @tp_descr_get@ */
1330 0, /* @tp_descr_set@ */
1331 0, /* @tp_dictoffset@ */
1333 PyType_GenericAlloc, /* @tp_alloc@ */
1334 bbspriv_pynew, /* @tp_new@ */
1339 /*----- Global stuff ------------------------------------------------------*/
1341 static PyMethodDef methods[] = {
1342 #define METHNAME(name) meth_##name
1343 KWMETH(_BBSPriv_generate, "\
1344 generate(NBITS, [event = pgen_nullev, rng = rand, nsteps = 0, seed = 2])")
1349 void rand_pyinit(void)
1351 INITTYPE(grand, root);
1352 INITTYPE(truerand, grand);
1353 INITTYPE(fibrand, grand);
1354 INITTYPE(lcrand, grand);
1355 INITTYPE(dsarand, grand);
1356 INITTYPE(bbs, grand);
1357 INITTYPE(bbspriv, bbs);
1358 INITTYPE(sslprf, grand);
1359 INITTYPE(tlsdx, grand);
1360 INITTYPE(tlsprf, grand);
1361 INITTYPE(gccrand, type);
1362 INITTYPE(gcrand, grand);
1363 rand_noisesrc(RAND_GLOBAL, &noise_source);
1364 rand_seed(RAND_GLOBAL, 160);
1365 addmethods(methods);
1368 #define gccrand gccrand_info
1369 GEN(gccrands, crand)
1371 void rand_pyinsert(PyObject *mod)
1373 INSERT("GRand", grand_pytype);
1374 INSERT("TrueRand", truerand_pytype);
1375 INSERT("LCRand", lcrand_pytype);
1376 INSERT("FibRand", fibrand_pytype);
1377 INSERT("SSLRand", sslprf_pytype);
1378 INSERT("TLSDataExpansion", tlsdx_pytype);
1379 INSERT("TLSPRF", tlsprf_pytype);
1380 INSERT("DSARand", dsarand_pytype);
1381 INSERT("BlumBlumShub", bbs_pytype);
1382 INSERT("BBSPriv", bbspriv_pytype);
1383 INSERT("GCCRand", gccrand_pytype);
1384 INSERT("GCRand", gcrand_pytype);
1385 rand_pyobj = grand_pywrap(&rand_global, 0); Py_INCREF(rand_pyobj);
1386 gccrands_dict = gccrands(); Py_INCREF(gccrands_dict);
1387 INSERT("gccrands", gccrands_dict);
1388 INSERT("rand", rand_pyobj);
1391 /*----- That's all, folks -------------------------------------------------*/