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rand.c: Some gratuitous reformatting.
[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"
6640e060 30PUBLIC_SYMBOLS;
850a4b48 31#include "algorithms.h"
6640e060 32PRIVATE_SYMBOLS;
d7ab1bab 33
34/*----- Main code ---------------------------------------------------------*/
35
c6e89d48
MW		 36PyTypeObject *grand_pytype;
37static PyTypeObject *truerand_pytype;
38static PyTypeObject *lcrand_pytype, *fibrand_pytype;
39static PyTypeObject *dsarand_pytype, *bbs_pytype, *bbspriv_pytype;
40static PyTypeObject *sslprf_pytype, *tlsdx_pytype, *tlsprf_pytype;
d7ab1bab 41PyObject *rand_pyobj;
42
850a4b48
MW		 43static PyObject *gccrands_dict;
44
d7ab1bab 45static PyObject *grand_dopywrap(PyTypeObject *ty, grand *r, unsigned f)
46{
47 grand_pyobj *g;
48
49 g = (grand_pyobj *)ty->tp_alloc(ty, 0);
50 g->r = r;
51 g->f = f;
52 return ((PyObject *)g);
53}
54
55PyObject *grand_pywrap(grand *r, unsigned f)
56{
57 PyTypeObject *ty = grand_pytype;
850a4b48 58 PyObject *ob;
d7ab1bab 59
20441612
MW		 60 if (STRCMP(r->ops->name, ==, "rand")) ty = truerand_pytype;
61 else if (STRCMP(r->ops->name, ==, "lcrand")) ty = lcrand_pytype;
62 else if (STRCMP(r->ops->name, ==, "fibrand")) ty = fibrand_pytype;
63 else if (STRCMP(r->ops->name, ==, "dsarand")) ty = dsarand_pytype;
64 else if (STRCMP(r->ops->name, ==, "bbs")) ty = bbs_pytype;
65 else if (STRCMP(r->ops->name, ==, "sslprf")) ty = sslprf_pytype;
66 else if (STRCMP(r->ops->name, ==, "tlsdx")) ty = tlsdx_pytype;
67 else if (STRCMP(r->ops->name, ==, "tlsprf")) ty = tlsprf_pytype;
a539ffb8
MW		 68 else if ((ob = PyMapping_GetItemString
69 (gccrands_dict, (/*unconst*/ char *)r->ops->name)) != 0)
850a4b48 70 ty = (PyTypeObject *)ob;
d7ab1bab 71 return (grand_dopywrap(ty, r, f));
72}
73
74CONVFUNC(grand, grand *, GRAND_R)
75
d65d80d7
MW		 76static int grand_check(PyObject *me)
77{
78 if (!GRAND_R(me)) VALERR("random generator object is no longer valid");
79 return (0);
80end:
81 return (-1);
82}
83
91e56f06 84static PyObject *grmeth_byte(PyObject *me)
d7ab1bab 85{
d65d80d7 86 if (grand_check(me)) return (0);
d7ab1bab 87 return (PyInt_FromLong(grand_byte(GRAND_R(me))));
88}
89
91e56f06 90static PyObject *grmeth_word(PyObject *me)
d7ab1bab 91{
d65d80d7 92 if (grand_check(me)) return (0);
fbca05a1 93 return (getulong(grand_word(GRAND_R(me))));
d7ab1bab 94}
95
96static PyObject *grmeth_range(PyObject *me, PyObject *arg)
97{
98 PyObject *m;
99 mp *x = 0;
100 mp *y = 0;
101
102 if (!PyArg_ParseTuple(arg, "O:range", &m)) return (0);
d65d80d7 103 if (grand_check(me)) return (0);
d7ab1bab 104 if (PyInt_Check(m)) {
105 long mm = PyInt_AS_LONG(m);
95ba7bc6
MW		 106 if (mm <= 0) goto notpos;
107 else if (mm <= 0xffffffff)
d7ab1bab 108 return (PyInt_FromLong(grand_range(GRAND_R(me), mm)));
109 }
95ba7bc6
MW		 110 if ((x = getmp(m)) == 0) goto end;
111 if (!MP_POSP(x)) goto notpos;
d7ab1bab 112 y = mprand_range(MP_NEW, x, GRAND_R(me), 0);
113 MP_DROP(x);
114 return (mp_pywrap(y));
cb08602a
MW		 115notpos:
116 VALERR("range must be strictly positive");
d7ab1bab 117end:
118 if (x) MP_DROP(x);
119 return (0);
120}
121
122static PyObject *grmeth_mp(PyObject *me, PyObject *arg, PyObject *kw)
123{
124 size_t l;
cb08602a 125 mpw o = 0;
827f89d7 126 static const char *const kwlist[] = { "bits", "or", 0 };
d7ab1bab 127
827f89d7 128 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&:mp", KWLIST,
d7ab1bab 129 convszt, &l, convmpw, &o))
130 goto end;
d65d80d7 131 if (grand_check(me)) return (0);
cb08602a 132 if (l < MPW_BITS && (o >> l)) VALERR("or mask too large");
d7ab1bab 133 return (mp_pywrap(mprand(MP_NEW, l, GRAND_R(me), o)));
134end:
135 return (0);
136}
137
138static PyObject *grmeth_block(PyObject *me, PyObject *arg)
139{
140 unsigned long n;
141 PyObject *rc = 0;
142
143 if (!PyArg_ParseTuple(arg, "O&:block", convulong, &n)) goto end;
d65d80d7 144 if (grand_check(me)) return (0);
d7ab1bab 145 rc = bytestring_pywrap(0, n);
2135a6d3 146 grand_fill(GRAND_R(me), BIN_PTR(rc), n);
d7ab1bab 147end:
148 return (rc);
149}
150
151static int checkop(grand *r, unsigned op, const char *what)
152{
d65d80d7 153 if (r->ops->misc(r, GRAND_CHECK, op)) return (0);
d7ab1bab 154 PyErr_Format(PyExc_TypeError, "operation %s not supported", what);
155 return (-1);
156}
157
158static PyObject *grmeth_seedint(PyObject *me, PyObject *arg)
159{
160 int i;
161 grand *r = GRAND_R(me);
162 if (!PyArg_ParseTuple(arg, "i:seedint", &i) ||
d65d80d7 163 grand_check(me) || checkop(r, GRAND_SEEDINT, "seedint"))
d7ab1bab 164 goto end;
165 r->ops->misc(r, GRAND_SEEDINT, i);
166 RETURN_ME;
167end:
168 return (0);
169}
170
171static PyObject *grmeth_seedword(PyObject *me, PyObject *arg)
172{
173 uint32 u;
174 grand *r = GRAND_R(me);
175 if (!PyArg_ParseTuple(arg, "O&:seedword", convu32, &u) ||
d65d80d7 176 grand_check(me) || checkop(r, GRAND_SEEDUINT32, "seedword"))
d7ab1bab 177 goto end;
178 r->ops->misc(r, GRAND_SEEDUINT32, u);
179 RETURN_ME;
180end:
181 return (0);
182}
183
184static PyObject *grmeth_seedblock(PyObject *me, PyObject *arg)
185{
67c75893 186 struct bin in;
d7ab1bab 187 grand *r = GRAND_R(me);
67c75893 188 if (!PyArg_ParseTuple(arg, "O&:seedblock", convbin, &in) ||
d65d80d7 189 grand_check(me) || checkop(r, GRAND_SEEDBLOCK, "seedblock"))
d7ab1bab 190 goto end;
67c75893 191 r->ops->misc(r, GRAND_SEEDBLOCK, in.p, (size_t)in.sz);
d7ab1bab 192 RETURN_ME;
193end:
194 return (0);
195}
196
197static PyObject *grmeth_seedmp(PyObject *me, PyObject *arg)
198{
199 PyObject *x;
200 mp *xx;
201 grand *r = GRAND_R(me);
202 if (!PyArg_ParseTuple(arg, "O:seedmp", &x) ||
d65d80d7 203 grand_check(me) || checkop(r, GRAND_SEEDMP, "seedmp") ||
d7ab1bab 204 (xx = getmp(x)) == 0)
205 goto end;
206 r->ops->misc(r, GRAND_SEEDMP, xx);
207 MP_DROP(xx);
208 RETURN_ME;
209end:
210 return (0);
211}
212
213static PyObject *grmeth_seedrand(PyObject *me, PyObject *arg, PyObject *kw)
214{
827f89d7 215 static const char *const kwlist[] = { "rng", 0 };
d7ab1bab 216 grand *r = GRAND_R(me);
217 grand *rr = &rand_global;
827f89d7 218 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:seedrand", KWLIST,
d7ab1bab 219 convgrand, &rr) ||
d65d80d7 220 grand_check(me) || checkop(r, GRAND_SEEDRAND, "seedrand"))
d7ab1bab 221 goto end;
222 r->ops->misc(r, GRAND_SEEDRAND, rr);
223 RETURN_ME;
224end:
225 return (0);
226}
227
228static PyObject *grmeth_mask(PyObject *me, PyObject *arg)
229{
230 grand *r = GRAND_R(me);
67c75893
MW		 231 struct bin in;
232 const octet *p; size_t n;
233 octet *q;
d7ab1bab 234 PyObject *rc;
235
67c75893 236 if (!PyArg_ParseTuple(arg, "O&:mask", convbin, &in)) return (0);
d65d80d7 237 if (grand_check(me)) return (0);
67c75893 238 rc = bytestring_pywrap(0, in.sz);
2135a6d3 239 q = (octet *)BIN_PTR(rc);
67c75893
MW		 240 GR_FILL(r, q, in.sz);
241 p = in.p; n = in.sz; while (n--) *q++ ^= *p++;
d7ab1bab 242 return (rc);
243}
244
245static void grand_pydealloc(PyObject *me)
246{
247 grand_pyobj *g = (grand_pyobj *)me;
d65d80d7 248 if ((g->f & f_freeme) && g->r) GR_DESTROY(g->r);
3aa33042 249 FREEOBJ(me);
d7ab1bab 250}
251
252static PyObject *grget_name(PyObject *me, void *hunoz)
2135a6d3 253 { return (grand_check(me) ? 0 : TEXT_FROMSTR(GRAND_R(me)->ops->name)); }
d7ab1bab 254
255static PyObject *grget_cryptop(PyObject *me, void *hunoz)
d65d80d7 256 { return (grand_check(me) ? 0 : getbool(GRAND_R(me)->ops->f & GRAND_CRYPTO)); }
d7ab1bab 257
c90f712e 258static const PyGetSetDef grand_pygetset[] = {
d7ab1bab 259#define GETSETNAME(op, name) gr##op##_##name
260 GET (name, "R.name -> name of this kind of generator")
261 GET (cryptop, "R.cryptop -> flag: cryptographically strong?")
262#undef GETSETNAME
263 { 0 }
264};
265
c90f712e 266static const PyMethodDef grand_pymethods[] = {
d7ab1bab 267#define METHNAME(name) grmeth_##name
91e56f06
MW		 268 NAMETH(byte, "R.byte() -> BYTE")
269 NAMETH(word, "R.word() -> WORD")
d7ab1bab 270 METH (block, "R.block(N) -> STRING")
986bcc44 271 KWMETH(mp, "R.mp(bits, [or = 0]) -> MP")
d7ab1bab 272 METH (range, "R.range(MAX) -> INT")
273 METH (mask, "R.mask(STR) -> STR")
274 METH (seedint, "R.seedint(I)")
275 METH (seedword, "R.seedword(I)")
276 METH (seedblock, "R.seedblock(BYTES)")
277 METH (seedmp, "R.seedmp(X)")
278 KWMETH(seedrand, "R.seedrand(RR)")
279#undef METHNAME
280 { 0 }
281};
282
c263b05c 283static const PyTypeObject grand_pytype_skel = {
591bf41b 284 PyVarObject_HEAD_INIT(0, 0) /* Header */
c461c9b3 285 "GRand", /* @tp_name@ */
d7ab1bab 286 sizeof(grand_pyobj), /* @tp_basicsize@ */
287 0, /* @tp_itemsize@ */
288
289 grand_pydealloc, /* @tp_dealloc@ */
290 0, /* @tp_print@ */
291 0, /* @tp_getattr@ */
292 0, /* @tp_setattr@ */
293 0, /* @tp_compare@ */
294 0, /* @tp_repr@ */
295 0, /* @tp_as_number@ */
296 0, /* @tp_as_sequence@ */
297 0, /* @tp_as_mapping@ */
298 0, /* @tp_hash@ */
299 0, /* @tp_call@ */
300 0, /* @tp_str@ */
301 0, /* @tp_getattro@ */
302 0, /* @tp_setattro@ */
303 0, /* @tp_as_buffer@ */
304 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
305 Py_TPFLAGS_BASETYPE,
306
307 /* @tp_doc@ */
d96c882e 308 "Generic random number source.",
d7ab1bab 309
310 0, /* @tp_traverse@ */
311 0, /* @tp_clear@ */
312 0, /* @tp_richcompare@ */
313 0, /* @tp_weaklistoffset@ */
314 0, /* @tp_iter@ */
963a6148 315 0, /* @tp_iternext@ */
c90f712e 316 PYMETHODS(grand), /* @tp_methods@ */
d7ab1bab 317 0, /* @tp_members@ */
c90f712e 318 PYGETSET(grand), /* @tp_getset@ */
d7ab1bab 319 0, /* @tp_base@ */
320 0, /* @tp_dict@ */
321 0, /* @tp_descr_get@ */
322 0, /* @tp_descr_set@ */
323 0, /* @tp_dictoffset@ */
324 0, /* @tp_init@ */
325 PyType_GenericAlloc, /* @tp_alloc@ */
326 abstract_pynew, /* @tp_new@ */
3aa33042 327 0, /* @tp_free@ */
d7ab1bab 328 0 /* @tp_is_gc@ */
329};
330
331static PyObject *lcrand_pynew(PyTypeObject *me, PyObject *arg, PyObject *kw)
332{
333 uint32 n = 0;
827f89d7
MW		 334 static const char *const kwlist[] = { "seed", 0 };
335 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:new", KWLIST, convu32, &n))
d7ab1bab 336 return (0);
337 return (grand_dopywrap(lcrand_pytype, lcrand_create(n), f_freeme));
338}
339
c263b05c 340static const PyTypeObject lcrand_pytype_skel = {
591bf41b 341 PyVarObject_HEAD_INIT(0, 0) /* Header */
c461c9b3 342 "LCRand", /* @tp_name@ */
d7ab1bab 343 sizeof(grand_pyobj), /* @tp_basicsize@ */
344 0, /* @tp_itemsize@ */
345
346 grand_pydealloc, /* @tp_dealloc@ */
347 0, /* @tp_print@ */
348 0, /* @tp_getattr@ */
349 0, /* @tp_setattr@ */
350 0, /* @tp_compare@ */
351 0, /* @tp_repr@ */
352 0, /* @tp_as_number@ */
353 0, /* @tp_as_sequence@ */
354 0, /* @tp_as_mapping@ */
355 0, /* @tp_hash@ */
356 0, /* @tp_call@ */
357 0, /* @tp_str@ */
358 0, /* @tp_getattro@ */
359 0, /* @tp_setattro@ */
360 0, /* @tp_as_buffer@ */
361 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
362 Py_TPFLAGS_BASETYPE,
363
364 /* @tp_doc@ */
d96c882e 365 "LCRand([seed = 0]): linear congruential generator.",
d7ab1bab 366
367 0, /* @tp_traverse@ */
368 0, /* @tp_clear@ */
369 0, /* @tp_richcompare@ */
370 0, /* @tp_weaklistoffset@ */
371 0, /* @tp_iter@ */
963a6148 372 0, /* @tp_iternext@ */
d7ab1bab 373 0, /* @tp_methods@ */
374 0, /* @tp_members@ */
375 0, /* @tp_getset@ */
376 0, /* @tp_base@ */
377 0, /* @tp_dict@ */
378 0, /* @tp_descr_get@ */
379 0, /* @tp_descr_set@ */
380 0, /* @tp_dictoffset@ */
381 0, /* @tp_init@ */
382 PyType_GenericAlloc, /* @tp_alloc@ */
383 lcrand_pynew, /* @tp_new@ */
3aa33042 384 0, /* @tp_free@ */
d7ab1bab 385 0 /* @tp_is_gc@ */
386};
387
388static PyObject *fibrand_pynew(PyTypeObject *me, PyObject *arg, PyObject *kw)
389{
390 uint32 n = 0;
827f89d7
MW		 391 static const char *const kwlist[] = { "seed", 0 };
392 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:new", KWLIST, convu32, &n))
d7ab1bab 393 return (0);
394 return (grand_dopywrap(fibrand_pytype, fibrand_create(n), f_freeme));
395}
396
c263b05c 397static const PyTypeObject fibrand_pytype_skel = {
591bf41b 398 PyVarObject_HEAD_INIT(0, 0) /* Header */
c461c9b3 399 "FibRand", /* @tp_name@ */
d7ab1bab 400 sizeof(grand_pyobj), /* @tp_basicsize@ */
401 0, /* @tp_itemsize@ */
402
403 grand_pydealloc, /* @tp_dealloc@ */
404 0, /* @tp_print@ */
405 0, /* @tp_getattr@ */
406 0, /* @tp_setattr@ */
407 0, /* @tp_compare@ */
408 0, /* @tp_repr@ */
409 0, /* @tp_as_number@ */
410 0, /* @tp_as_sequence@ */
411 0, /* @tp_as_mapping@ */
412 0, /* @tp_hash@ */
413 0, /* @tp_call@ */
414 0, /* @tp_str@ */
415 0, /* @tp_getattro@ */
416 0, /* @tp_setattro@ */
417 0, /* @tp_as_buffer@ */
418 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
419 Py_TPFLAGS_BASETYPE,
420
421 /* @tp_doc@ */
d96c882e 422 "FibRand([seed = 0]): Fibonacci generator.",
d7ab1bab 423
424 0, /* @tp_traverse@ */
425 0, /* @tp_clear@ */
426 0, /* @tp_richcompare@ */
427 0, /* @tp_weaklistoffset@ */
428 0, /* @tp_iter@ */
963a6148 429 0, /* @tp_iternext@ */
d7ab1bab 430 0, /* @tp_methods@ */
431 0, /* @tp_members@ */
432 0, /* @tp_getset@ */
433 0, /* @tp_base@ */
434 0, /* @tp_dict@ */
435 0, /* @tp_descr_get@ */
436 0, /* @tp_descr_set@ */
437 0, /* @tp_dictoffset@ */
438 0, /* @tp_init@ */
439 PyType_GenericAlloc, /* @tp_alloc@ */
440 fibrand_pynew, /* @tp_new@ */
3aa33042 441 0, /* @tp_free@ */
d7ab1bab 442 0 /* @tp_is_gc@ */
443};
444
445/*----- True random generator ---------------------------------------------*/
446
91e56f06
MW		 447static PyObject *trmeth_gate(PyObject *me)
448 { grand *r = GRAND_R(me); r->ops->misc(GRAND_R(me), RAND_GATE); RETURN_ME; }
d7ab1bab 449
91e56f06
MW		 450static PyObject *trmeth_stretch(PyObject *me)
451 { grand *r = GRAND_R(me); r->ops->misc(r, RAND_STRETCH); RETURN_ME; }
d7ab1bab 452
850a4b48
MW		 453static PyObject *trmeth_add(PyObject *me, PyObject *arg)
454{
455 grand *r = GRAND_R(me);
67c75893
MW		 456 struct bin in; unsigned goodbits;
457 if (!PyArg_ParseTuple(arg, "O&O&:add", convbin, &in, convuint, &goodbits))
850a4b48 458 return (0);
67c75893 459 r->ops->misc(r, RAND_ADD, in.p, (size_t)in.sz, goodbits);
850a4b48
MW		 460 RETURN_ME;
461}
462
d7ab1bab 463static PyObject *trmeth_key(PyObject *me, PyObject *arg)
464{
465 grand *r = GRAND_R(me);
67c75893
MW		 466 struct bin k;
467 if (!PyArg_ParseTuple(arg, "O&:key", convbin, &k)) return (0);
468 r->ops->misc(r, RAND_KEY, k.p, (size_t)k.sz);
d7ab1bab 469 RETURN_ME;
470}
471
472static PyObject *trmeth_seed(PyObject *me, PyObject *arg)
473{
474 grand *r = GRAND_R(me);
475 unsigned u;
476 if (!PyArg_ParseTuple(arg, "O&:seed", convuint, &u)) return (0);
477 if (u > RAND_IBITS) VALERR("pointlessly large");
478 r->ops->misc(r, RAND_SEED, u);
479 RETURN_ME;
480end:
481 return (0);
482}
483
91e56f06
MW		 484static PyObject *trmeth_timer(PyObject *me)
485 { grand *r = GRAND_R(me); r->ops->misc(r, RAND_TIMER); RETURN_ME; }
d7ab1bab 486
487static PyObject *truerand_pynew(PyTypeObject *ty,
488 PyObject *arg, PyObject *kw)
489{
827f89d7 490 static const char *const kwlist[] = { 0 };
d7ab1bab 491 grand *r;
492 PyObject *rc = 0;
7f38dc76 493 if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", KWLIST)) goto end;
d7ab1bab 494 r = rand_create();
495 r->ops->misc(r, RAND_NOISESRC, &noise_source);
496 r->ops->misc(r, RAND_SEED, 160);
497 rc = grand_dopywrap(ty, r, f_freeme);
498end:
499 return (rc);
500}
501
c90f712e 502static const PyMethodDef truerand_pymethods[] = {
d7ab1bab 503#define METHNAME(name) trmeth_##name
91e56f06
MW		 504 NAMETH(gate, "R.gate()")
505 NAMETH(stretch, "R.stretch()")
d7ab1bab 506 METH (key, "R.key(BYTES)")
507 METH (seed, "R.seed(NBITS)")
850a4b48 508 METH (add, "R.add(BYTES, GOODBITS")
91e56f06 509 NAMETH(timer, "R.timer()")
d7ab1bab 510#undef METHNAME
511 { 0 }
512};
513
514static PyObject *trget_goodbits(PyObject *me, void *hunoz)
515{
516 grand *r = GRAND_R(me);
517 return (PyInt_FromLong(r->ops->misc(r, RAND_GOODBITS)));
518}
519
c90f712e 520static const PyGetSetDef truerand_pygetset[] = {
d7ab1bab 521#define GETSETNAME(op, name) tr##op##_##name
b2687a0a 522 GET (goodbits, "R.goodbits -> good bits of entropy remaining")
d7ab1bab 523#undef GETSETNAME
524 { 0 }
525};
526
c263b05c 527static const PyTypeObject truerand_pytype_skel = {
591bf41b 528 PyVarObject_HEAD_INIT(0, 0) /* Header */
c461c9b3 529 "TrueRand", /* @tp_name@ */
d7ab1bab 530 sizeof(grand_pyobj), /* @tp_basicsize@ */
531 0, /* @tp_itemsize@ */
532
533 grand_pydealloc, /* @tp_dealloc@ */
534 0, /* @tp_print@ */
535 0, /* @tp_getattr@ */
536 0, /* @tp_setattr@ */
537 0, /* @tp_compare@ */
538 0, /* @tp_repr@ */
539 0, /* @tp_as_number@ */
540 0, /* @tp_as_sequence@ */
541 0, /* @tp_as_mapping@ */
542 0, /* @tp_hash@ */
543 0, /* @tp_call@ */
544 0, /* @tp_str@ */
545 0, /* @tp_getattro@ */
546 0, /* @tp_setattro@ */
547 0, /* @tp_as_buffer@ */
548 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
549 Py_TPFLAGS_BASETYPE,
550
551 /* @tp_doc@ */
d96c882e 552 "TrueRand(): true random number source.",
d7ab1bab 553
554 0, /* @tp_traverse@ */
555 0, /* @tp_clear@ */
556 0, /* @tp_richcompare@ */
557 0, /* @tp_weaklistoffset@ */
558 0, /* @tp_iter@ */
963a6148 559 0, /* @tp_iternext@ */
c90f712e 560 PYMETHODS(truerand), /* @tp_methods@ */
d7ab1bab 561 0, /* @tp_members@ */
c90f712e 562 PYGETSET(truerand), /* @tp_getset@ */
d7ab1bab 563 0, /* @tp_base@ */
564 0, /* @tp_dict@ */
565 0, /* @tp_descr_get@ */
566 0, /* @tp_descr_set@ */
567 0, /* @tp_dictoffset@ */
568 0, /* @tp_init@ */
569 PyType_GenericAlloc, /* @tp_alloc@ */
570 truerand_pynew, /* @tp_new@ */
3aa33042 571 0, /* @tp_free@ */
d7ab1bab 572 0 /* @tp_is_gc@ */
573};
574
850a4b48
MW		 575/*----- Generators from symmetric encryption algorithms -------------------*/
576
35e5469a 577static PyTypeObject *gccrand_pytype, *gcrand_pytype, *gclatinrand_pytype;
850a4b48
MW		 578
579typedef grand *gcrand_func(const void *, size_t sz);
580typedef grand *gcirand_func(const void *, size_t sz, uint32);
3f4f64b8 581typedef grand *gcnrand_func(const void *, size_t sz, const void *);
6bd22b53
MW		 582typedef grand *gcshakerand_func(const void *, size_t,
583 const void *, size_t,
584 const void *, size_t);
585typedef grand *gcshafuncrand_func(const void *, size_t,
586 const void *, size_t);
587typedef grand *gckmacrand_func(const void *, size_t, const void *, size_t);
850a4b48
MW		 588typedef struct gccrand_info {
589 const char *name;
590 const octet *keysz;
591 unsigned f;
3f4f64b8 592 size_t noncesz;
850a4b48
MW		 593 gcrand_func *func;
594} gccrand_info;
595
34825452
MW		 596#define RNGF_MASK 255u
597
598enum {
599 RNG_PLAIN = 0,
600 RNG_SEAL,
601 RNG_LATIN,
602 RNG_SHAKE,
603 RNG_KMAC
604};
78f06cd3 605
850a4b48
MW		 606typedef struct gccrand_pyobj {
607 PyHeapTypeObject ty;
608 const gccrand_info *info;
609} gccrand_pyobj;
610#define GCCRAND_INFO(o) (((gccrand_pyobj *)(o))->info)
611
3f4f64b8 612#define GCCRAND_DEF(name, ksz, func, f, nsz) \
850a4b48 613 static const gccrand_info func##_info = \
3f4f64b8 614 { name, ksz, f, nsz, (gcrand_func *)func };
850a4b48
MW		 615RNGS(GCCRAND_DEF)
616
617static const gccrand_info *const gcrandtab[] = {
3f4f64b8 618#define GCCRAND_ENTRY(name, ksz, func, f, nsz) &func##_info,
850a4b48
MW		 619 RNGS(GCCRAND_ENTRY)
620 0
621};
622
623static PyObject *gcrand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
624{
625 const gccrand_info *info = GCCRAND_INFO(ty);
827f89d7 626 static const char *const kwlist[] = { "key", 0 };
67c75893 627 struct bin k;
850a4b48 628
67c75893 629 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&:new", KWLIST, convbin, &k))
850a4b48 630 goto end;
67c75893
MW		 631 if (keysz(k.sz, info->keysz) != k.sz) VALERR("bad key length");
632 return (grand_dopywrap(ty, info->func(k.p, k.sz), f_freeme));
850a4b48 633end:
b2687a0a 634 return (0);
850a4b48
MW		 635}
636
637static PyObject *gcirand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
638{
639 const gccrand_info *info = GCCRAND_INFO(ty);
640 uint32 i = 0;
827f89d7 641 static const char *const kwlist[] = { "key", "i", 0 };
67c75893 642 struct bin k;
850a4b48 643
67c75893
MW		 644 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&O&:new", KWLIST,
645 convbin, &k, convu32, &i))
850a4b48 646 goto end;
67c75893 647 if (keysz(k.sz, info->keysz) != k.sz) VALERR("bad key length");
850a4b48 648 return (grand_dopywrap(ty,
67c75893 649 ((gcirand_func *)info->func)(k.p, k.sz, i),
850a4b48
MW		 650 f_freeme));
651end:
b2687a0a 652 return (0);
850a4b48
MW		 653}
654
3f4f64b8
MW		 655static PyObject *gcnrand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
656{
657 const gccrand_info *info = GCCRAND_INFO(ty);
827f89d7 658 static const char *const kwlist[] = { "key", "nonce", 0 };
67c75893 659 struct bin k, n;
3f4f64b8 660
67c75893
MW		 661 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&O&:new", KWLIST,
662 convbin, &k, convbin, &n))
3f4f64b8 663 goto end;
67c75893
MW		 664 if (keysz(k.sz, info->keysz) != k.sz) VALERR("bad key length");
665 if (n.sz != info->noncesz) VALERR("bad nonce length");
3f4f64b8 666 return (grand_dopywrap(ty,
67c75893 667 ((gcnrand_func *)info->func)(k.p, k.sz, n.p),
3f4f64b8
MW		 668 f_freeme));
669end:
670 return (0);
671}
672
6bd22b53
MW		 673static PyObject *gcshakyrand_pynew(PyTypeObject *ty,
674 PyObject *arg, PyObject *kw)
675{
676 const gccrand_info *info = GCCRAND_INFO(ty);
827f89d7
MW		 677 static const char
678 *const kwlist_shake[] = { "key", "func", "perso", 0 },
679 *const kwlist_func[] = { "key", "perso", 0 };
67c75893 680 struct bin k, f = { 0, 0 }, p = { 0, 0 };
6bd22b53
MW		 681
682 if ((info->f&RNGF_MASK) == RNG_SHAKE
67c75893 683 ? !PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&O&:new",
827f89d7 684 (/*unconst*/ char **)kwlist_shake,
67c75893
MW		 685 convbin, &k,
686 convbin, &f, convbin, &p)
687 : !PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&:new",
827f89d7 688 (/*unconst*/ char **)kwlist_func,
67c75893 689 convbin, &k, convbin, &p))
6bd22b53 690 goto end;
67c75893 691 if (keysz(k.sz, info->keysz) != k.sz) VALERR("bad key length");
6bd22b53
MW		 692 return (grand_dopywrap(ty,
693 (info->f&RNGF_MASK) == RNG_SHAKE
67c75893
MW		 694 ? ((gcshakerand_func *)info->func)(f.p, f.sz,
695 p.p, p.sz,
696 k.p, k.sz)
697 : ((gcshafuncrand_func *)info->func)(p.p, p.sz,
698 k.p, k.sz),
6bd22b53
MW		 699 f_freeme));
700end:
701 return (0);
702}
703
850a4b48
MW		 704static PyObject *gccrand_pywrap(const gccrand_info *info)
705{
706 gccrand_pyobj *g = newtype(gccrand_pytype, 0, info->name);
707 g->info = info;
24b3d57b 708 g->ty.ht_type.tp_basicsize = sizeof(grand_pyobj);
34825452
MW		 709 switch (info->f&RNGF_MASK) {
710 case RNG_LATIN: g->ty.ht_type.tp_base = gclatinrand_pytype; break;
711 default: g->ty.ht_type.tp_base = gcrand_pytype; break;
712 }
35e5469a 713 Py_INCREF(g->ty.ht_type.tp_base);
24b3d57b
MW		 714 g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT |
715 Py_TPFLAGS_BASETYPE |
716 Py_TPFLAGS_HEAPTYPE);
717 g->ty.ht_type.tp_alloc = PyType_GenericAlloc;
718 g->ty.ht_type.tp_free = 0;
34825452
MW		 719 switch (info->f&RNGF_MASK) {
720 case RNG_LATIN: g->ty.ht_type.tp_new = gcnrand_pynew; break;
721 case RNG_SEAL: g->ty.ht_type.tp_new = gcirand_pynew; break;
6bd22b53
MW		 722 case RNG_SHAKE: case RNG_KMAC:
723 g->ty.ht_type.tp_new = gcshakyrand_pynew; break;
34825452
MW		 724 default: g->ty.ht_type.tp_new = gcrand_pynew; break;
725 }
dc075750 726 typeready(&g->ty.ht_type);
850a4b48
MW		 727 return ((PyObject *)g);
728}
729
730static PyObject *gccrget_name(PyObject *me, void *hunoz)
2135a6d3 731 { return (TEXT_FROMSTR(GCCRAND_INFO(me)->name)); }
850a4b48
MW		 732static PyObject *gccrget_keysz(PyObject *me, void *hunoz)
733 { return (keysz_pywrap(GCCRAND_INFO(me)->keysz)); }
734
91e56f06 735static PyObject *gclrmeth_tell(PyObject *me)
35e5469a
MW		 736{
737 grand *r = GRAND_R(me);
738 PyObject *rc = 0;
739 kludge64 off;
740
35e5469a
MW		 741 r->ops->misc(r, SALSA20_TELLU64, &off);
742 rc = getk64(off);
743 return (rc);
744}
745
746static PyObject *gclrmeth_seek(PyObject *me, PyObject *arg)
747{
748 grand *r = GRAND_R(me);
749 kludge64 off;
750
751 if (!PyArg_ParseTuple(arg, "O&:seek", convk64, &off)) return (0);
752 r->ops->misc(r, SALSA20_SEEKU64, off);
753 RETURN_ME;
754}
755
c90f712e 756static const PyGetSetDef gccrand_pygetset[] = {
850a4b48 757#define GETSETNAME(op, name) gccr##op##_##name
d96c882e
MW		 758 GET (keysz, "CR.keysz -> acceptable key sizes")
759 GET (name, "CR.name -> name of this kind of generator")
850a4b48
MW		 760#undef GETSETNAME
761 { 0 }
762};
763
c90f712e 764static const PyMethodDef gclatinrand_pymethods[] = {
35e5469a 765#define METHNAME(name) gclrmeth_##name
91e56f06 766 NAMETH(tell, "R.tell() -> OFF")
35e5469a
MW		 767 METH (seek, "R.seek(OFF)")
768#undef METHNAME
769 { 0 }
770};
771
c263b05c 772static const PyTypeObject gccrand_pytype_skel = {
591bf41b 773 PyVarObject_HEAD_INIT(0, 0) /* Header */
c461c9b3 774 "GCCRand", /* @tp_name@ */
850a4b48
MW		 775 sizeof(gccrand_pyobj), /* @tp_basicsize@ */
776 0, /* @tp_itemsize@ */
777
778 0, /* @tp_dealloc@ */
779 0, /* @tp_print@ */
780 0, /* @tp_getattr@ */
781 0, /* @tp_setattr@ */
782 0, /* @tp_compare@ */
783 0, /* @tp_repr@ */
784 0, /* @tp_as_number@ */
785 0, /* @tp_as_sequence@ */
786 0, /* @tp_as_mapping@ */
787 0, /* @tp_hash@ */
788 0, /* @tp_call@ */
789 0, /* @tp_str@ */
790 0, /* @tp_getattro@ */
791 0, /* @tp_setattro@ */
792 0, /* @tp_as_buffer@ */
793 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
794 Py_TPFLAGS_BASETYPE,
795
796 /* @tp_doc@ */
d96c882e 797 "Metaclass for symmetric crypto-based generators.",
850a4b48
MW		 798
799 0, /* @tp_traverse@ */
800 0, /* @tp_clear@ */
801 0, /* @tp_richcompare@ */
802 0, /* @tp_weaklistoffset@ */
803 0, /* @tp_iter@ */
804 0, /* @tp_iternext@ */
805 0, /* @tp_methods@ */
806 0, /* @tp_members@ */
c90f712e 807 PYGETSET(gccrand), /* @tp_getset@ */
850a4b48
MW		 808 0, /* @tp_base@ */
809 0, /* @tp_dict@ */
810 0, /* @tp_descr_get@ */
811 0, /* @tp_descr_set@ */
812 0, /* @tp_dictoffset@ */
813 0, /* @tp_init@ */
814 PyType_GenericAlloc, /* @tp_alloc@ */
815 abstract_pynew, /* @tp_new@ */
816 0, /* @tp_free@ */
817 0 /* @tp_is_gc@ */
818};
819
c263b05c 820static const PyTypeObject gcrand_pytype_skel = {
591bf41b 821 PyVarObject_HEAD_INIT(0, 0) /* Header */
c461c9b3 822 "GCRand", /* @tp_name@ */
850a4b48
MW		 823 sizeof(grand_pyobj), /* @tp_basicsize@ */
824 0, /* @tp_itemsize@ */
825
826 grand_pydealloc, /* @tp_dealloc@ */
827 0, /* @tp_print@ */
828 0, /* @tp_getattr@ */
829 0, /* @tp_setattr@ */
830 0, /* @tp_compare@ */
831 0, /* @tp_repr@ */
832 0, /* @tp_as_number@ */
833 0, /* @tp_as_sequence@ */
834 0, /* @tp_as_mapping@ */
835 0, /* @tp_hash@ */
836 0, /* @tp_call@ */
837 0, /* @tp_str@ */
838 0, /* @tp_getattro@ */
839 0, /* @tp_setattro@ */
840 0, /* @tp_as_buffer@ */
841 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
842 Py_TPFLAGS_BASETYPE,
843
844 /* @tp_doc@ */
d96c882e 845 "Abstract base class for symmetric crypto-based generators.",
850a4b48
MW		 846
847 0, /* @tp_traverse@ */
848 0, /* @tp_clear@ */
849 0, /* @tp_richcompare@ */
850 0, /* @tp_weaklistoffset@ */
851 0, /* @tp_iter@ */
852 0, /* @tp_iternext@ */
853 0, /* @tp_methods@ */
854 0, /* @tp_members@ */
855 0, /* @tp_getset@ */
856 0, /* @tp_base@ */
857 0, /* @tp_dict@ */
858 0, /* @tp_descr_get@ */
859 0, /* @tp_descr_set@ */
860 0, /* @tp_dictoffset@ */
861 0, /* @tp_init@ */
862 PyType_GenericAlloc, /* @tp_alloc@ */
863 abstract_pynew, /* @tp_new@ */
864 0, /* @tp_free@ */
865 0 /* @tp_is_gc@ */
866};
867
c263b05c 868static const PyTypeObject gclatinrand_pytype_skel = {
591bf41b 869 PyVarObject_HEAD_INIT(0, 0) /* Header */
35e5469a
MW		 870 "GCLatinRand", /* @tp_name@ */
871 sizeof(grand_pyobj), /* @tp_basicsize@ */
872 0, /* @tp_itemsize@ */
873
874 grand_pydealloc, /* @tp_dealloc@ */
875 0, /* @tp_print@ */
876 0, /* @tp_getattr@ */
877 0, /* @tp_setattr@ */
878 0, /* @tp_compare@ */
879 0, /* @tp_repr@ */
880 0, /* @tp_as_number@ */
881 0, /* @tp_as_sequence@ */
882 0, /* @tp_as_mapping@ */
883 0, /* @tp_hash@ */
884 0, /* @tp_call@ */
885 0, /* @tp_str@ */
886 0, /* @tp_getattro@ */
887 0, /* @tp_setattro@ */
888 0, /* @tp_as_buffer@ */
889 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
890 Py_TPFLAGS_BASETYPE,
891
892 /* @tp_doc@ */
d96c882e 893 "Abstract base class for symmetric crypto-based generators.",
35e5469a
MW		 894
895 0, /* @tp_traverse@ */
896 0, /* @tp_clear@ */
897 0, /* @tp_richcompare@ */
898 0, /* @tp_weaklistoffset@ */
899 0, /* @tp_iter@ */
900 0, /* @tp_iternext@ */
c90f712e 901 PYMETHODS(gclatinrand), /* @tp_methods@ */
35e5469a
MW		 902 0, /* @tp_members@ */
903 0, /* @tp_getset@ */
904 0, /* @tp_base@ */
905 0, /* @tp_dict@ */
906 0, /* @tp_descr_get@ */
907 0, /* @tp_descr_set@ */
908 0, /* @tp_dictoffset@ */
909 0, /* @tp_init@ */
910 PyType_GenericAlloc, /* @tp_alloc@ */
911 abstract_pynew, /* @tp_new@ */
912 0, /* @tp_free@ */
913 0 /* @tp_is_gc@ */
914};
915
d7ab1bab 916/*----- SSL and TLS generators --------------------------------------------*/
917
918static PyObject *sslprf_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
919{
67c75893 920 struct bin k, s;
d7ab1bab 921 const gchash *hco = &md5, *hci = &sha;
922 PyObject *rc = 0;
827f89d7 923 static const char *const kwlist[] = { "key", "seed", "ohash", "ihash", 0 };
d7ab1bab 924
67c75893
MW		 925 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&O&|O&O&:new", KWLIST,
926 convbin, &k, convbin, &s,
d7ab1bab 927 convgchash, &hco, convgchash, &hci))
928 goto end;
67c75893
MW		 929 rc = grand_dopywrap(ty, sslprf_rand(hco, hci, k.p, k.sz, s.p, s.sz),
930 f_freeme);
d7ab1bab 931end:
932 return (rc);
933}
934
935static PyObject *tlsdx_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
936{
67c75893 937 struct bin k, s;
d7ab1bab 938 const gcmac *mc = &sha_hmac;
939 PyObject *rc = 0;
827f89d7 940 static const char *const kwlist[] = { "key", "seed", "mac", 0 };
d7ab1bab 941
67c75893
MW		 942 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&O&|O&:new", KWLIST,
943 convbin, &k, convbin, &s,
d7ab1bab 944 convgcmac, &mc))
945 goto end;
67c75893 946 rc = grand_dopywrap(ty, tlsdx_rand(mc, k.p, k.sz, s.p, s.sz), f_freeme);
d7ab1bab 947end:
948 return (rc);
949}
950
951static PyObject *tlsprf_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
952{
67c75893 953 struct bin k, s;
d7ab1bab 954 const gcmac *mcl = &md5_hmac, *mcr = &sha_hmac;
955 PyObject *rc = 0;
827f89d7 956 static const char *const kwlist[] = { "key", "seed", "lmac", "rmac", 0 };
d7ab1bab 957
67c75893
MW		 958 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&O&|O&O&:new", KWLIST,
959 convbin, &k, convbin, &s,
d7ab1bab 960 convgcmac, &mcl, convgcmac, &mcr))
961 goto end;
67c75893
MW		 962 rc = grand_dopywrap(ty, tlsprf_rand(mcl, mcr, k.p, k.sz, s.p, s.sz),
963 f_freeme);
d7ab1bab 964end:
965 return (rc);
966}
967
c263b05c 968static const PyTypeObject sslprf_pytype_skel = {
591bf41b 969 PyVarObject_HEAD_INIT(0, 0) /* Header */
c461c9b3 970 "SSLRand", /* @tp_name@ */
d7ab1bab 971 sizeof(grand_pyobj), /* @tp_basicsize@ */
972 0, /* @tp_itemsize@ */
973
974 grand_pydealloc, /* @tp_dealloc@ */
975 0, /* @tp_print@ */
976 0, /* @tp_getattr@ */
977 0, /* @tp_setattr@ */
978 0, /* @tp_compare@ */
979 0, /* @tp_repr@ */
980 0, /* @tp_as_number@ */
981 0, /* @tp_as_sequence@ */
982 0, /* @tp_as_mapping@ */
983 0, /* @tp_hash@ */
984 0, /* @tp_call@ */
985 0, /* @tp_str@ */
986 0, /* @tp_getattro@ */
987 0, /* @tp_setattro@ */
988 0, /* @tp_as_buffer@ */
989 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
990 Py_TPFLAGS_BASETYPE,
991
992 /* @tp_doc@ */
d96c882e
MW		 993 "SSLRand(KEY, SEED, [ohash = md5], [ihash = sha]):\n"
994 " RNG for SSL master secret.",
d7ab1bab 995
996 0, /* @tp_traverse@ */
997 0, /* @tp_clear@ */
998 0, /* @tp_richcompare@ */
999 0, /* @tp_weaklistoffset@ */
1000 0, /* @tp_iter@ */
963a6148 1001 0, /* @tp_iternext@ */
d7ab1bab 1002 0, /* @tp_methods@ */
1003 0, /* @tp_members@ */
1004 0, /* @tp_getset@ */
1005 0, /* @tp_base@ */
1006 0, /* @tp_dict@ */
1007 0, /* @tp_descr_get@ */
1008 0, /* @tp_descr_set@ */
1009 0, /* @tp_dictoffset@ */
1010 0, /* @tp_init@ */
1011 PyType_GenericAlloc, /* @tp_alloc@ */
1012 sslprf_pynew, /* @tp_new@ */
3aa33042 1013 0, /* @tp_free@ */
d7ab1bab 1014 0 /* @tp_is_gc@ */
1015};
1016
c263b05c 1017static const PyTypeObject tlsdx_pytype_skel = {
591bf41b 1018 PyVarObject_HEAD_INIT(0, 0) /* Header */
c461c9b3 1019 "TLSDataExpansion", /* @tp_name@ */
d7ab1bab 1020 sizeof(grand_pyobj), /* @tp_basicsize@ */
1021 0, /* @tp_itemsize@ */
1022
1023 grand_pydealloc, /* @tp_dealloc@ */
1024 0, /* @tp_print@ */
1025 0, /* @tp_getattr@ */
1026 0, /* @tp_setattr@ */
1027 0, /* @tp_compare@ */
1028 0, /* @tp_repr@ */
1029 0, /* @tp_as_number@ */
1030 0, /* @tp_as_sequence@ */
1031 0, /* @tp_as_mapping@ */
1032 0, /* @tp_hash@ */
1033 0, /* @tp_call@ */
1034 0, /* @tp_str@ */
1035 0, /* @tp_getattro@ */
1036 0, /* @tp_setattro@ */
1037 0, /* @tp_as_buffer@ */
1038 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1039 Py_TPFLAGS_BASETYPE,
1040
1041 /* @tp_doc@ */
d96c882e
MW		 1042 "TLSDataExpansion(KEY, SEED, [mac = sha_hmac]):\n"
1043 " TLS data expansion function.",
d7ab1bab 1044
1045 0, /* @tp_traverse@ */
1046 0, /* @tp_clear@ */
1047 0, /* @tp_richcompare@ */
1048 0, /* @tp_weaklistoffset@ */
1049 0, /* @tp_iter@ */
963a6148 1050 0, /* @tp_iternext@ */
d7ab1bab 1051 0, /* @tp_methods@ */
1052 0, /* @tp_members@ */
1053 0, /* @tp_getset@ */
1054 0, /* @tp_base@ */
1055 0, /* @tp_dict@ */
1056 0, /* @tp_descr_get@ */
1057 0, /* @tp_descr_set@ */
1058 0, /* @tp_dictoffset@ */
1059 0, /* @tp_init@ */
1060 PyType_GenericAlloc, /* @tp_alloc@ */
1061 tlsdx_pynew, /* @tp_new@ */
3aa33042 1062 0, /* @tp_free@ */
d7ab1bab 1063 0 /* @tp_is_gc@ */
1064};
1065
c263b05c 1066static const PyTypeObject tlsprf_pytype_skel = {
591bf41b 1067 PyVarObject_HEAD_INIT(0, 0) /* Header */
c461c9b3 1068 "TLSPRF", /* @tp_name@ */
d7ab1bab 1069 sizeof(grand_pyobj), /* @tp_basicsize@ */
1070 0, /* @tp_itemsize@ */
1071
1072 grand_pydealloc, /* @tp_dealloc@ */
1073 0, /* @tp_print@ */
1074 0, /* @tp_getattr@ */
1075 0, /* @tp_setattr@ */
1076 0, /* @tp_compare@ */
1077 0, /* @tp_repr@ */
1078 0, /* @tp_as_number@ */
1079 0, /* @tp_as_sequence@ */
1080 0, /* @tp_as_mapping@ */
1081 0, /* @tp_hash@ */
1082 0, /* @tp_call@ */
1083 0, /* @tp_str@ */
1084 0, /* @tp_getattro@ */
1085 0, /* @tp_setattro@ */
1086 0, /* @tp_as_buffer@ */
1087 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1088 Py_TPFLAGS_BASETYPE,
1089
1090 /* @tp_doc@ */
d96c882e
MW		 1091 "TLSPRF(KEY, SEED, [lmac = md5_hmac], [rmac = sha_hmac]):\n"
1092 " TLS pseudorandom function.",
d7ab1bab 1093
1094 0, /* @tp_traverse@ */
1095 0, /* @tp_clear@ */
1096 0, /* @tp_richcompare@ */
1097 0, /* @tp_weaklistoffset@ */
1098 0, /* @tp_iter@ */
963a6148 1099 0, /* @tp_iternext@ */
d7ab1bab 1100 0, /* @tp_methods@ */
1101 0, /* @tp_members@ */
1102 0, /* @tp_getset@ */
1103 0, /* @tp_base@ */
1104 0, /* @tp_dict@ */
1105 0, /* @tp_descr_get@ */
1106 0, /* @tp_descr_set@ */
1107 0, /* @tp_dictoffset@ */
1108 0, /* @tp_init@ */
1109 PyType_GenericAlloc, /* @tp_alloc@ */
1110 tlsprf_pynew, /* @tp_new@ */
3aa33042 1111 0, /* @tp_free@ */
d7ab1bab 1112 0 /* @tp_is_gc@ */
1113};
1114
1115/*----- DSA generator -----------------------------------------------------*/
1116
1117static PyObject *dsarand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
1118{
67c75893 1119 struct bin in;
d7ab1bab 1120 PyObject *rc = 0;
827f89d7 1121 static const char *const kwlist[] = { "seed", 0 };
d7ab1bab 1122
67c75893 1123 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&:new", KWLIST, convbin, &in))
d7ab1bab 1124 goto end;
67c75893 1125 rc = grand_dopywrap(ty, dsarand_create(in.p, in.sz), f_freeme);
d7ab1bab 1126end:
98963817 1127 return (rc);
d7ab1bab 1128}
1129
1130static PyObject *drget_seed(PyObject *me, void *hunoz)
1131{
1132 grand *r = GRAND_R(me);
1133 int n = r->ops->misc(r, DSARAND_SEEDSZ);
1134 PyObject *rc = bytestring_pywrap(0, n);
2135a6d3 1135 r->ops->misc(r, DSARAND_GETSEED, BIN_PTR(rc));
d7ab1bab 1136 return (rc);
1137}
1138
c90f712e 1139static const PyGetSetDef dsarand_pygetset[] = {
d7ab1bab 1140#define GETSETNAME(op, name) dr##op##_##name
1141 GET (seed, "R.seed -> current generator seed")
1142#undef GETSETNAME
1143 { 0 }
1144};
1145
c263b05c 1146static const PyTypeObject dsarand_pytype_skel = {
591bf41b 1147 PyVarObject_HEAD_INIT(0, 0) /* Header */
c461c9b3 1148 "DSARand", /* @tp_name@ */
d7ab1bab 1149 sizeof(grand_pyobj), /* @tp_basicsize@ */
1150 0, /* @tp_itemsize@ */
1151
1152 grand_pydealloc, /* @tp_dealloc@ */
1153 0, /* @tp_print@ */
1154 0, /* @tp_getattr@ */
1155 0, /* @tp_setattr@ */
1156 0, /* @tp_compare@ */
1157 0, /* @tp_repr@ */
1158 0, /* @tp_as_number@ */
1159 0, /* @tp_as_sequence@ */
1160 0, /* @tp_as_mapping@ */
1161 0, /* @tp_hash@ */
1162 0, /* @tp_call@ */
1163 0, /* @tp_str@ */
1164 0, /* @tp_getattro@ */
1165 0, /* @tp_setattro@ */
1166 0, /* @tp_as_buffer@ */
1167 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1168 Py_TPFLAGS_BASETYPE,
1169
1170 /* @tp_doc@ */
d96c882e 1171 "DSARand(SEED): pseudorandom number generator for DSA parameters.",
d7ab1bab 1172
1173 0, /* @tp_traverse@ */
1174 0, /* @tp_clear@ */
1175 0, /* @tp_richcompare@ */
1176 0, /* @tp_weaklistoffset@ */
1177 0, /* @tp_iter@ */
963a6148 1178 0, /* @tp_iternext@ */
d7ab1bab 1179 0, /* @tp_methods@ */
1180 0, /* @tp_members@ */
c90f712e 1181 PYGETSET(dsarand), /* @tp_getset@ */
d7ab1bab 1182 0, /* @tp_base@ */
1183 0, /* @tp_dict@ */
1184 0, /* @tp_descr_get@ */
1185 0, /* @tp_descr_set@ */
1186 0, /* @tp_dictoffset@ */
1187 0, /* @tp_init@ */
1188 PyType_GenericAlloc, /* @tp_alloc@ */
1189 dsarand_pynew, /* @tp_new@ */
3aa33042 1190 0, /* @tp_free@ */
d7ab1bab 1191 0 /* @tp_is_gc@ */
1192};
1193
1194/*----- Blum-Blum-Shub generator ------------------------------------------*/
1195
1196static PyObject *bbs_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
1197{
1198 mp *n = 0, *x = MP_TWO;
1199 PyObject *rc = 0;
827f89d7 1200 static const char *const kwlist[] = { "n", "x", 0 };
d7ab1bab 1201
827f89d7 1202 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&:new", KWLIST,
d7ab1bab 1203 convmp, &n, convmp, &x))
1204 goto end;
1205 rc = grand_dopywrap(ty, bbs_rand(n, x), f_freeme);
1206end:
1207 mp_drop(n);
1208 mp_drop(x);
1209 return (rc);
1210}
1211
91e56f06
MW		 1212static PyObject *bbsmeth_step(PyObject *me)
1213 { grand *r = GRAND_R(me); r->ops->misc(r, BBS_STEP); RETURN_ME; }
d7ab1bab 1214
1215static PyObject *bbsmeth_bits(PyObject *me, PyObject *arg)
1216{
1217 grand *r = GRAND_R(me); unsigned n; uint32 w;
1218 if (!PyArg_ParseTuple(arg, "O&:bits", convuint, &n)) goto end;
1219 if (n > 32) VALERR("can't get more than 32 bits");
fbca05a1 1220 r->ops->misc(r, BBS_BITS, n, &w); return (getulong(w));
d7ab1bab 1221end:
1222 return (0);
1223}
1224
91e56f06
MW		 1225static PyObject *bbsmeth_wrap(PyObject *me)
1226 { grand *r = GRAND_R(me); r->ops->misc(r, BBS_WRAP); RETURN_ME; }
d7ab1bab 1227
1228static PyObject *bbsget_n(PyObject *me, void *hunoz)
1229{
1230 mp *x = MP_NEW; grand *r = GRAND_R(me);
1231 r->ops->misc(r, BBS_MOD, &x); return (mp_pywrap(x));
1232}
1233
1234static PyObject *bbsget_x(PyObject *me, void *hunoz)
1235{
1236 mp *x = MP_NEW; grand *r = GRAND_R(me);
1237 r->ops->misc(r, BBS_STATE, &x); return (mp_pywrap(x));
1238}
1239
1240static int bbsset_x(PyObject *me, PyObject *val, void *hunoz)
1241{
03e1fedf 1242 mp *x = 0; grand *r = GRAND_R(me); int rc = -1; if (!val) NIERR("__del__");
6a080b28
MW		 1243 if ((x = getmp(val)) == 0) goto end;
1244 r->ops->misc(r, BBS_SET, x); rc = 0;
d7ab1bab 1245 end: mp_drop(x); return (rc);
1246}
1247
1248static PyObject *bbsget_stepsz(PyObject *me, void *hunoz)
1249{
1250 grand *r = GRAND_R(me);
1251 return (PyInt_FromLong(r->ops->misc(r, BBS_STEPSZ)));
1252}
1253
c90f712e 1254static const PyMethodDef bbs_pymethods[] = {
d7ab1bab 1255#define METHNAME(name) bbsmeth_##name
91e56f06 1256 NAMETH(step, "R.step(): steps the generator (not useful)")
d96c882e 1257 METH (bits, "R.bits(N) -> W: returns N bits (<= 32) from the generator")
91e56f06 1258 NAMETH(wrap, "R.wrap(): flushes unused bits in internal buffer")
d7ab1bab 1259#undef METHNAME
1260 { 0 }
1261};
1262
c90f712e 1263static const PyGetSetDef bbs_pygetset[] = {
d7ab1bab 1264#define GETSETNAME(op, name) bbs##op##_##name
1265 GET (n, "R.n -> Blum modulus")
1266 GETSET(x, "R.x -> current seed value")
1267 GET (stepsz, "R.stepsz -> number of bits generated per step")
1268#undef GETSETNAME
1269 { 0 }
1270};
1271
c263b05c 1272static const PyTypeObject bbs_pytype_skel = {
591bf41b 1273 PyVarObject_HEAD_INIT(0, 0) /* Header */
c461c9b3 1274 "BlumBlumShub", /* @tp_name@ */
d7ab1bab 1275 sizeof(grand_pyobj), /* @tp_basicsize@ */
1276 0, /* @tp_itemsize@ */
1277
1278 grand_pydealloc, /* @tp_dealloc@ */
1279 0, /* @tp_print@ */
1280 0, /* @tp_getattr@ */
1281 0, /* @tp_setattr@ */
1282 0, /* @tp_compare@ */
1283 0, /* @tp_repr@ */
1284 0, /* @tp_as_number@ */
1285 0, /* @tp_as_sequence@ */
1286 0, /* @tp_as_mapping@ */
1287 0, /* @tp_hash@ */
1288 0, /* @tp_call@ */
1289 0, /* @tp_str@ */
1290 0, /* @tp_getattro@ */
1291 0, /* @tp_setattro@ */
1292 0, /* @tp_as_buffer@ */
1293 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1294 Py_TPFLAGS_BASETYPE,
1295
1296 /* @tp_doc@ */
d96c882e 1297 "BlumBlumShub(N, [x = 2]): Blum-Blum-Shub pseudorandom number generator.",
d7ab1bab 1298
1299 0, /* @tp_traverse@ */
1300 0, /* @tp_clear@ */
1301 0, /* @tp_richcompare@ */
1302 0, /* @tp_weaklistoffset@ */
1303 0, /* @tp_iter@ */
963a6148 1304 0, /* @tp_iternext@ */
c90f712e 1305 PYMETHODS(bbs), /* @tp_methods@ */
d7ab1bab 1306 0, /* @tp_members@ */
c90f712e 1307 PYGETSET(bbs), /* @tp_getset@ */
d7ab1bab 1308 0, /* @tp_base@ */
1309 0, /* @tp_dict@ */
1310 0, /* @tp_descr_get@ */
1311 0, /* @tp_descr_set@ */
1312 0, /* @tp_dictoffset@ */
1313 0, /* @tp_init@ */
1314 PyType_GenericAlloc, /* @tp_alloc@ */
1315 bbs_pynew, /* @tp_new@ */
3aa33042 1316 0, /* @tp_free@ */
d7ab1bab 1317 0 /* @tp_is_gc@ */
1318};
1319
1320typedef struct bbspriv_pyobj {
1321 grand_pyobj gr;
1322 bbs_priv bp;
1323} bbspriv_pyobj;
1324
1325#define BBSPRIV_BP(o) (&((bbspriv_pyobj *)(o))->bp)
1326
1327static PyObject *bbspriv_pynew(PyTypeObject *ty,
1328 PyObject *arg, PyObject *kw)
1329{
1330 mp *p = 0, *q = 0, *n = 0, *x = MP_TWO;
1331 bbspriv_pyobj *rc = 0;
827f89d7 1332 static const char *const kwlist[] = { "n", "p", "q", "seed", 0 };
d7ab1bab 1333
827f89d7 1334 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&O&O&O&:new", KWLIST,
d7ab1bab 1335 convmp, &n, convmp, &p, convmp, &q,
1336 convmp, &x))
1337 goto end;
1338 if (!n + !p + !q > 1) VALERR("must specify at least two of n, p, q");
1339 if (!n) n = mp_mul(MP_NEW, p, q);
1340 else if (!p) mp_div(&p, 0, n, q);
1341 else if (!q) mp_div(&q, 0, n, p);
1342 rc = (bbspriv_pyobj *)ty->tp_alloc(ty, 0);
1343 rc->gr.r = bbs_rand(n, x);
1344 rc->gr.f = f_freeme;
1345 rc->bp.p = MP_COPY(p);
1346 rc->bp.q = MP_COPY(q);
1347 rc->bp.n = MP_COPY(n);
1348end:
1349 mp_drop(p); mp_drop(q); mp_drop(n); mp_drop(x);
1350 return ((PyObject *)rc);
1351}
1352
a157093f 1353static PyObject *bpmeth_generate(PyObject *me, PyObject *arg, PyObject *kw)
d7ab1bab 1354{
1355 bbs_priv bp = { 0 };
1356 mp *x = MP_TWO;
930d78e3
MW		 1357 struct excinfo exc = EXCINFO_INIT;
1358 pypgev evt = { { 0 } };
d7ab1bab 1359 unsigned nbits, n = 0;
1360 grand *r = &rand_global;
827f89d7 1361 static const char *const kwlist[] =
a157093f 1362 { "nbits", "event", "rng", "nsteps", "seed", 0 };
d7ab1bab 1363 bbspriv_pyobj *rc = 0;
1364
930d78e3 1365 evt.exc = &exc;
a157093f
MW		 1366 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&O&O&O&:generate", KWLIST,
1367 convuint, &nbits, convpgev, &evt,
d7ab1bab 1368 convgrand, &r, convuint, &n, convmp, &x))
1369 goto end;
930d78e3
MW		 1370 if (bbs_gen(&bp, nbits, r, n, evt.ev.proc, evt.ev.ctx))
1371 PGENERR(&exc);
d7ab1bab 1372 rc = PyObject_New(bbspriv_pyobj, bbspriv_pytype);
1373 rc->gr.r = bbs_rand(bp.n, x);
1374 rc->gr.f = f_freeme;
1375 rc->bp.p = MP_COPY(bp.p);
1376 rc->bp.q = MP_COPY(bp.q);
1377 rc->bp.n = MP_COPY(bp.n);
1378end:
1379 mp_drop(bp.p); mp_drop(bp.q); mp_drop(bp.n); mp_drop(x);
b2687a0a 1380 return ((PyObject *)rc);
d7ab1bab 1381}
1382
1383static void bbspriv_pydealloc(PyObject *me)
1384{
1385 bbs_priv *bp = BBSPRIV_BP(me);
1386 mp_drop(bp->n);
1387 mp_drop(bp->p);
1388 mp_drop(bp->q);
1389 grand_pydealloc(me);
1390}
1391
1392static PyObject *bpmeth_ff(PyObject *me, PyObject *arg)
1393{
1394 mp *n = 0; grand *r = GRAND_R(me); bbs_priv *bp = BBSPRIV_BP(me);
1395 if (!PyArg_ParseTuple(arg, "O&:ff", convmp, &n)) return (0);
1396 r->ops->misc(r, BBS_FF, bp, n); RETURN_ME;
1397}
1398
1399static PyObject *bpmeth_rew(PyObject *me, PyObject *arg)
1400{
1401 mp *n = 0; grand *r = GRAND_R(me); bbs_priv *bp = BBSPRIV_BP(me);
1402 if (!PyArg_ParseTuple(arg, "O&:rew", convmp, &n)) return (0);
1403 r->ops->misc(r, BBS_REW, bp, n); RETURN_ME;
1404}
1405
1406static PyObject *bpget_n(PyObject *me, void *hunoz)
1407 { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->n))); }
1408
1409static PyObject *bpget_p(PyObject *me, void *hunoz)
1410 { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->p))); }
1411
1412static PyObject *bpget_q(PyObject *me, void *hunoz)
1413 { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->q))); }
1414
c90f712e 1415static const PyMethodDef bbspriv_pymethods[] = {
d7ab1bab 1416#define METHNAME(name) bpmeth_##name
d96c882e
MW		 1417 METH (ff, "R.ff(N): fast-forward N places")
1418 METH (rew, "R.rew(N): rewind N places")
a157093f
MW		 1419 KWSMTH(generate, "generate(NBITS, [event = pgen_nullev], "
1420 "[rng = rand], [nsteps = 0], [seed = 2]) -> R")
d7ab1bab 1421#undef METHNAME
1422 { 0 }
1423};
1424
c90f712e 1425static const PyGetSetDef bbspriv_pygetset[] = {
d7ab1bab 1426#define GETSETNAME(op, name) bp##op##_##name
b2687a0a
MW		 1427 GET (n, "R.n -> Blum modulus")
1428 GET (p, "R.p -> one of the factors of the modulus")
1429 GET (q, "R.q -> one of the factors of the modulus")
d7ab1bab 1430#undef GETSETNAME
1431 { 0 }
1432};
1433
c263b05c 1434static const PyTypeObject bbspriv_pytype_skel = {
591bf41b 1435 PyVarObject_HEAD_INIT(0, 0) /* Header */
c461c9b3 1436 "BBSPriv", /* @tp_name@ */
d7ab1bab 1437 sizeof(bbspriv_pyobj), /* @tp_basicsize@ */
1438 0, /* @tp_itemsize@ */
1439
1440 bbspriv_pydealloc, /* @tp_dealloc@ */
1441 0, /* @tp_print@ */
1442 0, /* @tp_getattr@ */
1443 0, /* @tp_setattr@ */
1444 0, /* @tp_compare@ */
1445 0, /* @tp_repr@ */
1446 0, /* @tp_as_number@ */
1447 0, /* @tp_as_sequence@ */
1448 0, /* @tp_as_mapping@ */
1449 0, /* @tp_hash@ */
1450 0, /* @tp_call@ */
1451 0, /* @tp_str@ */
1452 0, /* @tp_getattro@ */
1453 0, /* @tp_setattro@ */
1454 0, /* @tp_as_buffer@ */
1455 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1456 Py_TPFLAGS_BASETYPE,
1457
1458 /* @tp_doc@ */
d96c882e
MW		 1459 "BBSPriv(..., [seed = 2]): Blum-Blum-Shub, with private key.\n"
1460 " Keywords: n, p, q; must provide at least two",
d7ab1bab 1461
1462 0, /* @tp_traverse@ */
1463 0, /* @tp_clear@ */
1464 0, /* @tp_richcompare@ */
1465 0, /* @tp_weaklistoffset@ */
1466 0, /* @tp_iter@ */
963a6148 1467 0, /* @tp_iternext@ */
c90f712e 1468 PYMETHODS(bbspriv), /* @tp_methods@ */
d7ab1bab 1469 0, /* @tp_members@ */
c90f712e 1470 PYGETSET(bbspriv), /* @tp_getset@ */
d7ab1bab 1471 0, /* @tp_base@ */
1472 0, /* @tp_dict@ */
1473 0, /* @tp_descr_get@ */
1474 0, /* @tp_descr_set@ */
1475 0, /* @tp_dictoffset@ */
1476 0, /* @tp_init@ */
1477 PyType_GenericAlloc, /* @tp_alloc@ */
1478 bbspriv_pynew, /* @tp_new@ */
3aa33042 1479 0, /* @tp_free@ */
d7ab1bab 1480 0 /* @tp_is_gc@ */
1481};
1482
1483/*----- Global stuff ------------------------------------------------------*/
1484
810542b0
MW		 1485static const struct nameval consts[] = {
1486 CONST(RAND_IBITS),
1487 { 0 }
1488};
1489
d7ab1bab 1490void rand_pyinit(void)
1491{
1492 INITTYPE(grand, root);
1493 INITTYPE(truerand, grand);
1494 INITTYPE(fibrand, grand);
1495 INITTYPE(lcrand, grand);
1496 INITTYPE(dsarand, grand);
1497 INITTYPE(bbs, grand);
1498 INITTYPE(bbspriv, bbs);
1499 INITTYPE(sslprf, grand);
1500 INITTYPE(tlsdx, grand);
1501 INITTYPE(tlsprf, grand);
850a4b48
MW		 1502 INITTYPE(gccrand, type);
1503 INITTYPE(gcrand, grand);
35e5469a 1504 INITTYPE(gclatinrand, gcrand);
d7ab1bab 1505 rand_noisesrc(RAND_GLOBAL, &noise_source);
1506 rand_seed(RAND_GLOBAL, 160);
d7ab1bab 1507}
1508
a539ffb8
MW		 1509static const char *crand_namefn(const void *p)
1510 { const gccrand_info *const *cls = p; return (*cls ? (*cls)->name : 0); }
1511static PyObject *crand_valfn(const void *p)
1512 { const gccrand_info *const *cls = p; return (gccrand_pywrap(*cls)); }
850a4b48 1513
d7ab1bab 1514void rand_pyinsert(PyObject *mod)
1515{
1516 INSERT("GRand", grand_pytype);
1517 INSERT("TrueRand", truerand_pytype);
1518 INSERT("LCRand", lcrand_pytype);
1519 INSERT("FibRand", fibrand_pytype);
1520 INSERT("SSLRand", sslprf_pytype);
1521 INSERT("TLSDataExpansion", tlsdx_pytype);
1522 INSERT("TLSPRF", tlsprf_pytype);
1523 INSERT("DSARand", dsarand_pytype);
1524 INSERT("BlumBlumShub", bbs_pytype);
1525 INSERT("BBSPriv", bbspriv_pytype);
850a4b48
MW		 1526 INSERT("GCCRand", gccrand_pytype);
1527 INSERT("GCRand", gcrand_pytype);
35e5469a 1528 INSERT("GCLatinRand", gclatinrand_pytype);
d7ab1bab 1529 rand_pyobj = grand_pywrap(&rand_global, 0); Py_INCREF(rand_pyobj);
a539ffb8
MW		 1530 gccrands_dict = make_algtab(gcrandtab, sizeof(gccrand_info *),
1531 crand_namefn, crand_valfn);
1532 INSERT("gccrands", gccrands_dict); Py_INCREF(gccrands_dict);
d7ab1bab 1533 INSERT("rand", rand_pyobj);
810542b0 1534 setconstants(mod, consts);
d7ab1bab 1535}
1536
1537/*----- That's all, folks -------------------------------------------------*/
Catacomb cryptographic library -- Python bindings