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"
31 #include "algorithms.h"
34 /*----- Main code ---------------------------------------------------------*/
36 PyTypeObject
*grand_pytype
;
37 static PyTypeObject
*truerand_pytype
;
38 static PyTypeObject
*lcrand_pytype
, *fibrand_pytype
;
39 static PyTypeObject
*dsarand_pytype
, *bbs_pytype
, *bbspriv_pytype
;
40 static PyTypeObject
*sslprf_pytype
, *tlsdx_pytype
, *tlsprf_pytype
;
43 static PyObject
*gccrands_dict
;
45 static PyObject
*grand_dopywrap(PyTypeObject
*ty
, grand
*r
, unsigned f
)
49 g
= (grand_pyobj
*)ty
->tp_alloc(ty
, 0);
52 return ((PyObject
*)g
);
55 PyObject
*grand_pywrap(grand
*r
, unsigned f
)
57 PyTypeObject
*ty
= grand_pytype
;
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
;
68 else if ((ob
= PyMapping_GetItemString
69 (gccrands_dict
, (/*unconst*/ char *)r
->ops
->name
)) != 0)
70 ty
= (PyTypeObject
*)ob
;
71 return (grand_dopywrap(ty
, r
, f
));
74 CONVFUNC(grand
, grand
*, GRAND_R
)
76 static int grand_check(PyObject
*me
)
78 if (!GRAND_R(me
)) VALERR("random generator object is no longer valid");
84 static PyObject
*grmeth_byte(PyObject
*me
)
86 if (grand_check(me
)) return (0);
87 return (PyInt_FromLong(grand_byte(GRAND_R(me
))));
90 static PyObject
*grmeth_word(PyObject
*me
)
92 if (grand_check(me
)) return (0);
93 return (getulong(grand_word(GRAND_R(me
))));
96 static PyObject
*grmeth_range(PyObject
*me
, PyObject
*arg
)
102 if (!PyArg_ParseTuple(arg
, "O:range", &m
)) return (0);
103 if (grand_check(me
)) return (0);
104 if (PyInt_Check(m
)) {
105 long mm
= PyInt_AS_LONG(m
);
108 if (mm
<= 0xffffffff)
109 return (PyInt_FromLong(grand_range(GRAND_R(me
), mm
)));
111 if ((x
= getmp(m
)) == 0)
115 y
= mprand_range(MP_NEW
, x
, GRAND_R(me
), 0);
117 return (mp_pywrap(y
));
119 VALERR("range must be strictly positive");
125 static PyObject
*grmeth_mp(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
129 static const char *const kwlist
[] = { "bits", "or", 0 };
131 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&|O&:mp", KWLIST
,
132 convszt
, &l
, convmpw
, &o
))
134 if (grand_check(me
)) return (0);
135 if (l
< MPW_BITS
&& (o
>> l
)) VALERR("or mask too large");
136 return (mp_pywrap(mprand(MP_NEW
, l
, GRAND_R(me
), o
)));
141 static PyObject
*grmeth_block(PyObject
*me
, PyObject
*arg
)
146 if (!PyArg_ParseTuple(arg
, "O&:block", convulong
, &n
)) goto end
;
147 if (grand_check(me
)) return (0);
148 rc
= bytestring_pywrap(0, n
);
149 grand_fill(GRAND_R(me
), BIN_PTR(rc
), n
);
154 static int checkop(grand
*r
, unsigned op
, const char *what
)
156 if (r
->ops
->misc(r
, GRAND_CHECK
, op
)) return (0);
157 PyErr_Format(PyExc_TypeError
, "operation %s not supported", what
);
161 static PyObject
*grmeth_seedint(PyObject
*me
, PyObject
*arg
)
164 grand
*r
= GRAND_R(me
);
165 if (!PyArg_ParseTuple(arg
, "i:seedint", &i
) ||
166 grand_check(me
) || checkop(r
, GRAND_SEEDINT
, "seedint"))
168 r
->ops
->misc(r
, GRAND_SEEDINT
, i
);
174 static PyObject
*grmeth_seedword(PyObject
*me
, PyObject
*arg
)
177 grand
*r
= GRAND_R(me
);
178 if (!PyArg_ParseTuple(arg
, "O&:seedword", convu32
, &u
) ||
179 grand_check(me
) || checkop(r
, GRAND_SEEDUINT32
, "seedword"))
181 r
->ops
->misc(r
, GRAND_SEEDUINT32
, u
);
187 static PyObject
*grmeth_seedblock(PyObject
*me
, PyObject
*arg
)
190 grand
*r
= GRAND_R(me
);
191 if (!PyArg_ParseTuple(arg
, "O&:seedblock", convbin
, &in
) ||
192 grand_check(me
) || checkop(r
, GRAND_SEEDBLOCK
, "seedblock"))
194 r
->ops
->misc(r
, GRAND_SEEDBLOCK
, in
.p
, (size_t)in
.sz
);
200 static PyObject
*grmeth_seedmp(PyObject
*me
, PyObject
*arg
)
204 grand
*r
= GRAND_R(me
);
205 if (!PyArg_ParseTuple(arg
, "O:seedmp", &x
) ||
206 grand_check(me
) || checkop(r
, GRAND_SEEDMP
, "seedmp") ||
207 (xx
= getmp(x
)) == 0)
209 r
->ops
->misc(r
, GRAND_SEEDMP
, xx
);
216 static PyObject
*grmeth_seedrand(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
218 static const char *const kwlist
[] = { "rng", 0 };
219 grand
*r
= GRAND_R(me
);
220 grand
*rr
= &rand_global
;
221 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "|O&:seedrand", KWLIST
,
223 grand_check(me
) || checkop(r
, GRAND_SEEDRAND
, "seedrand"))
225 r
->ops
->misc(r
, GRAND_SEEDRAND
, rr
);
231 static PyObject
*grmeth_mask(PyObject
*me
, PyObject
*arg
)
233 grand
*r
= GRAND_R(me
);
235 const octet
*p
; size_t n
;
239 if (!PyArg_ParseTuple(arg
, "O&:mask", convbin
, &in
)) return (0);
240 if (grand_check(me
)) return (0);
241 rc
= bytestring_pywrap(0, in
.sz
);
242 q
= (octet
*)BIN_PTR(rc
);
243 GR_FILL(r
, q
, in
.sz
);
244 p
= in
.p
; n
= in
.sz
; while (n
--) *q
++ ^= *p
++;
248 static void grand_pydealloc(PyObject
*me
)
250 grand_pyobj
*g
= (grand_pyobj
*)me
;
251 if ((g
->f
& f_freeme
) && g
->r
) GR_DESTROY(g
->r
);
255 static PyObject
*grget_name(PyObject
*me
, void *hunoz
)
256 { return (grand_check(me
) ?
0 : TEXT_FROMSTR(GRAND_R(me
)->ops
->name
)); }
258 static PyObject
*grget_cryptop(PyObject
*me
, void *hunoz
)
259 { return (grand_check(me
) ?
0 : getbool(GRAND_R(me
)->ops
->f
& GRAND_CRYPTO
)); }
261 static const PyGetSetDef grand_pygetset
[] = {
262 #define GETSETNAME(op, name) gr##op##_##name
263 GET (name
, "R.name -> name of this kind of generator")
264 GET (cryptop
, "R.cryptop -> flag: cryptographically strong?")
269 static const PyMethodDef grand_pymethods
[] = {
270 #define METHNAME(name) grmeth_##name
271 NAMETH(byte
, "R.byte() -> BYTE")
272 NAMETH(word
, "R.word() -> WORD")
273 METH (block
, "R.block(N) -> STRING")
274 KWMETH(mp
, "R.mp(bits, [or = 0]) -> MP")
275 METH (range
, "R.range(MAX) -> INT")
276 METH (mask
, "R.mask(STR) -> STR")
277 METH (seedint
, "R.seedint(I)")
278 METH (seedword
, "R.seedword(I)")
279 METH (seedblock
, "R.seedblock(BYTES)")
280 METH (seedmp
, "R.seedmp(X)")
281 KWMETH(seedrand
, "R.seedrand(RR)")
286 static const PyTypeObject grand_pytype_skel
= {
287 PyVarObject_HEAD_INIT(0, 0) /* Header */
288 "GRand", /* @tp_name@ */
289 sizeof(grand_pyobj
), /* @tp_basicsize@ */
290 0, /* @tp_itemsize@ */
292 grand_pydealloc
, /* @tp_dealloc@ */
294 0, /* @tp_getattr@ */
295 0, /* @tp_setattr@ */
296 0, /* @tp_compare@ */
298 0, /* @tp_as_number@ */
299 0, /* @tp_as_sequence@ */
300 0, /* @tp_as_mapping@ */
304 0, /* @tp_getattro@ */
305 0, /* @tp_setattro@ */
306 0, /* @tp_as_buffer@ */
307 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
311 "Generic random number source.",
313 0, /* @tp_traverse@ */
315 0, /* @tp_richcompare@ */
316 0, /* @tp_weaklistoffset@ */
318 0, /* @tp_iternext@ */
319 PYMETHODS(grand
), /* @tp_methods@ */
320 0, /* @tp_members@ */
321 PYGETSET(grand
), /* @tp_getset@ */
324 0, /* @tp_descr_get@ */
325 0, /* @tp_descr_set@ */
326 0, /* @tp_dictoffset@ */
328 PyType_GenericAlloc
, /* @tp_alloc@ */
329 abstract_pynew
, /* @tp_new@ */
334 static PyObject
*lcrand_pynew(PyTypeObject
*me
, PyObject
*arg
, PyObject
*kw
)
337 static const char *const kwlist
[] = { "seed", 0 };
338 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "|O&:new", KWLIST
, convu32
, &n
))
340 return (grand_dopywrap(lcrand_pytype
, lcrand_create(n
), f_freeme
));
343 static const PyTypeObject lcrand_pytype_skel
= {
344 PyVarObject_HEAD_INIT(0, 0) /* Header */
345 "LCRand", /* @tp_name@ */
346 sizeof(grand_pyobj
), /* @tp_basicsize@ */
347 0, /* @tp_itemsize@ */
349 grand_pydealloc
, /* @tp_dealloc@ */
351 0, /* @tp_getattr@ */
352 0, /* @tp_setattr@ */
353 0, /* @tp_compare@ */
355 0, /* @tp_as_number@ */
356 0, /* @tp_as_sequence@ */
357 0, /* @tp_as_mapping@ */
361 0, /* @tp_getattro@ */
362 0, /* @tp_setattro@ */
363 0, /* @tp_as_buffer@ */
364 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
368 "LCRand([seed = 0]): linear congruential generator.",
370 0, /* @tp_traverse@ */
372 0, /* @tp_richcompare@ */
373 0, /* @tp_weaklistoffset@ */
375 0, /* @tp_iternext@ */
376 0, /* @tp_methods@ */
377 0, /* @tp_members@ */
381 0, /* @tp_descr_get@ */
382 0, /* @tp_descr_set@ */
383 0, /* @tp_dictoffset@ */
385 PyType_GenericAlloc
, /* @tp_alloc@ */
386 lcrand_pynew
, /* @tp_new@ */
391 static PyObject
*fibrand_pynew(PyTypeObject
*me
, PyObject
*arg
, PyObject
*kw
)
394 static const char *const kwlist
[] = { "seed", 0 };
395 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "|O&:new", KWLIST
, convu32
, &n
))
397 return (grand_dopywrap(fibrand_pytype
, fibrand_create(n
), f_freeme
));
400 static const PyTypeObject fibrand_pytype_skel
= {
401 PyVarObject_HEAD_INIT(0, 0) /* Header */
402 "FibRand", /* @tp_name@ */
403 sizeof(grand_pyobj
), /* @tp_basicsize@ */
404 0, /* @tp_itemsize@ */
406 grand_pydealloc
, /* @tp_dealloc@ */
408 0, /* @tp_getattr@ */
409 0, /* @tp_setattr@ */
410 0, /* @tp_compare@ */
412 0, /* @tp_as_number@ */
413 0, /* @tp_as_sequence@ */
414 0, /* @tp_as_mapping@ */
418 0, /* @tp_getattro@ */
419 0, /* @tp_setattro@ */
420 0, /* @tp_as_buffer@ */
421 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
425 "FibRand([seed = 0]): Fibonacci generator.",
427 0, /* @tp_traverse@ */
429 0, /* @tp_richcompare@ */
430 0, /* @tp_weaklistoffset@ */
432 0, /* @tp_iternext@ */
433 0, /* @tp_methods@ */
434 0, /* @tp_members@ */
438 0, /* @tp_descr_get@ */
439 0, /* @tp_descr_set@ */
440 0, /* @tp_dictoffset@ */
442 PyType_GenericAlloc
, /* @tp_alloc@ */
443 fibrand_pynew
, /* @tp_new@ */
448 /*----- True random generator ---------------------------------------------*/
450 static PyObject
*trmeth_gate(PyObject
*me
)
451 { grand
*r
= GRAND_R(me
); r
->ops
->misc(GRAND_R(me
), RAND_GATE
); RETURN_ME
; }
453 static PyObject
*trmeth_stretch(PyObject
*me
)
454 { grand
*r
= GRAND_R(me
); r
->ops
->misc(r
, RAND_STRETCH
); RETURN_ME
; }
456 static PyObject
*trmeth_add(PyObject
*me
, PyObject
*arg
)
458 grand
*r
= GRAND_R(me
);
459 struct bin in
; unsigned goodbits
;
460 if (!PyArg_ParseTuple(arg
, "O&O&:add", convbin
, &in
, convuint
, &goodbits
))
462 r
->ops
->misc(r
, RAND_ADD
, in
.p
, (size_t)in
.sz
, goodbits
);
466 static PyObject
*trmeth_key(PyObject
*me
, PyObject
*arg
)
468 grand
*r
= GRAND_R(me
);
470 if (!PyArg_ParseTuple(arg
, "O&:key", convbin
, &k
)) return (0);
471 r
->ops
->misc(r
, RAND_KEY
, k
.p
, (size_t)k
.sz
);
475 static PyObject
*trmeth_seed(PyObject
*me
, PyObject
*arg
)
477 grand
*r
= GRAND_R(me
);
479 if (!PyArg_ParseTuple(arg
, "O&:seed", convuint
, &u
)) return (0);
480 if (u
> RAND_IBITS
) VALERR("pointlessly large");
481 r
->ops
->misc(r
, RAND_SEED
, u
);
487 static PyObject
*trmeth_timer(PyObject
*me
)
488 { grand
*r
= GRAND_R(me
); r
->ops
->misc(r
, RAND_TIMER
); RETURN_ME
; }
490 static PyObject
*truerand_pynew(PyTypeObject
*ty
,
491 PyObject
*arg
, PyObject
*kw
)
493 static const char *const 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 const PyMethodDef truerand_pymethods
[] = {
506 #define METHNAME(name) trmeth_##name
507 NAMETH(gate
, "R.gate()")
508 NAMETH(stretch
, "R.stretch()")
509 METH (key
, "R.key(BYTES)")
510 METH (seed
, "R.seed(NBITS)")
511 METH (add
, "R.add(BYTES, GOODBITS")
512 NAMETH(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 const PyGetSetDef truerand_pygetset
[] = {
524 #define GETSETNAME(op, name) tr##op##_##name
525 GET (goodbits
, "R.goodbits -> good bits of entropy remaining")
530 static const PyTypeObject truerand_pytype_skel
= {
531 PyVarObject_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 "TrueRand(): true random number source.",
557 0, /* @tp_traverse@ */
559 0, /* @tp_richcompare@ */
560 0, /* @tp_weaklistoffset@ */
562 0, /* @tp_iternext@ */
563 PYMETHODS(truerand
), /* @tp_methods@ */
564 0, /* @tp_members@ */
565 PYGETSET(truerand
), /* @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
, *gclatinrand_pytype
;
582 typedef grand
*gcrand_func(const void *, size_t sz
);
583 typedef grand
*gcirand_func(const void *, size_t sz
, uint32
);
584 typedef grand
*gcnrand_func(const void *, size_t sz
, const void *);
585 typedef grand
*gcshakerand_func(const void *, size_t,
586 const void *, size_t,
587 const void *, size_t);
588 typedef grand
*gcshafuncrand_func(const void *, size_t,
589 const void *, size_t);
590 typedef grand
*gckmacrand_func(const void *, size_t, const void *, size_t);
591 typedef struct gccrand_info
{
599 #define RNGF_MASK 255u
609 typedef struct gccrand_pyobj
{
611 const gccrand_info
*info
;
613 #define GCCRAND_INFO(o) (((gccrand_pyobj *)(o))->info)
615 #define GCCRAND_DEF(name, ksz, func, f, nsz) \
616 static const gccrand_info func##_info = \
617 { name, ksz, f, nsz, (gcrand_func *)func };
620 static const gccrand_info
*const gcrandtab
[] = {
621 #define GCCRAND_ENTRY(name, ksz, func, f, nsz) &func##_info,
626 static PyObject
*gcrand_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
628 const gccrand_info
*info
= GCCRAND_INFO(ty
);
629 static const char *const kwlist
[] = { "key", 0 };
632 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&:new", KWLIST
, convbin
, &k
))
634 if (keysz(k
.sz
, info
->keysz
) != k
.sz
) VALERR("bad key length");
635 return (grand_dopywrap(ty
, info
->func(k
.p
, k
.sz
), f_freeme
));
640 static PyObject
*gcirand_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
642 const gccrand_info
*info
= GCCRAND_INFO(ty
);
644 static const char *const kwlist
[] = { "key", "i", 0 };
647 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&O&:new", KWLIST
,
648 convbin
, &k
, convu32
, &i
))
650 if (keysz(k
.sz
, info
->keysz
) != k
.sz
) VALERR("bad key length");
651 return (grand_dopywrap(ty
,
652 ((gcirand_func
*)info
->func
)(k
.p
, k
.sz
, i
),
658 static PyObject
*gcnrand_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
660 const gccrand_info
*info
= GCCRAND_INFO(ty
);
661 static const char *const kwlist
[] = { "key", "nonce", 0 };
664 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&O&:new", KWLIST
,
665 convbin
, &k
, convbin
, &n
))
667 if (keysz(k
.sz
, info
->keysz
) != k
.sz
) VALERR("bad key length");
668 if (n
.sz
!= info
->noncesz
) VALERR("bad nonce length");
669 return (grand_dopywrap(ty
,
670 ((gcnrand_func
*)info
->func
)(k
.p
, k
.sz
, n
.p
),
676 static PyObject
*gcshakyrand_pynew(PyTypeObject
*ty
,
677 PyObject
*arg
, PyObject
*kw
)
679 const gccrand_info
*info
= GCCRAND_INFO(ty
);
681 *const kwlist_shake
[] = { "key", "func", "perso", 0 },
682 *const kwlist_func
[] = { "key", "perso", 0 };
683 struct bin k
, f
= { 0, 0 }, p
= { 0, 0 };
685 if ((info
->f
&RNGF_MASK
) == RNG_SHAKE
686 ?
!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&|O&O&:new",
687 (/*unconst*/ char **)kwlist_shake
,
689 convbin
, &f
, convbin
, &p
)
690 : !PyArg_ParseTupleAndKeywords(arg
, kw
, "O&|O&:new",
691 (/*unconst*/ char **)kwlist_func
,
692 convbin
, &k
, convbin
, &p
))
694 if (keysz(k
.sz
, info
->keysz
) != k
.sz
) VALERR("bad key length");
695 return (grand_dopywrap(ty
,
696 (info
->f
&RNGF_MASK
) == RNG_SHAKE
697 ?
((gcshakerand_func
*)info
->func
)(f
.p
, f
.sz
,
700 : ((gcshafuncrand_func
*)info
->func
)(p
.p
, p
.sz
,
707 static PyObject
*gccrand_pywrap(const gccrand_info
*info
)
709 gccrand_pyobj
*g
= newtype(gccrand_pytype
, 0, info
->name
);
711 g
->ty
.ht_type
.tp_basicsize
= sizeof(grand_pyobj
);
712 switch (info
->f
&RNGF_MASK
) {
713 case RNG_LATIN
: g
->ty
.ht_type
.tp_base
= gclatinrand_pytype
; break;
714 default: g
->ty
.ht_type
.tp_base
= gcrand_pytype
; break;
716 Py_INCREF(g
->ty
.ht_type
.tp_base
);
717 g
->ty
.ht_type
.tp_flags
= (Py_TPFLAGS_DEFAULT
|
718 Py_TPFLAGS_BASETYPE
|
719 Py_TPFLAGS_HEAPTYPE
);
720 g
->ty
.ht_type
.tp_alloc
= PyType_GenericAlloc
;
721 g
->ty
.ht_type
.tp_free
= 0;
722 switch (info
->f
&RNGF_MASK
) {
723 case RNG_LATIN
: g
->ty
.ht_type
.tp_new
= gcnrand_pynew
; break;
724 case RNG_SEAL
: g
->ty
.ht_type
.tp_new
= gcirand_pynew
; break;
725 case RNG_SHAKE
: case RNG_KMAC
:
726 g
->ty
.ht_type
.tp_new
= gcshakyrand_pynew
; break;
727 default: g
->ty
.ht_type
.tp_new
= gcrand_pynew
; break;
729 typeready(&g
->ty
.ht_type
);
730 return ((PyObject
*)g
);
733 static PyObject
*gccrget_name(PyObject
*me
, void *hunoz
)
734 { return (TEXT_FROMSTR(GCCRAND_INFO(me
)->name
)); }
735 static PyObject
*gccrget_keysz(PyObject
*me
, void *hunoz
)
736 { return (keysz_pywrap(GCCRAND_INFO(me
)->keysz
)); }
738 static PyObject
*gclrmeth_tell(PyObject
*me
)
740 grand
*r
= GRAND_R(me
);
744 r
->ops
->misc(r
, SALSA20_TELLU64
, &off
);
749 static PyObject
*gclrmeth_seek(PyObject
*me
, PyObject
*arg
)
751 grand
*r
= GRAND_R(me
);
754 if (!PyArg_ParseTuple(arg
, "O&:seek", convk64
, &off
)) return (0);
755 r
->ops
->misc(r
, SALSA20_SEEKU64
, off
);
759 static const PyGetSetDef gccrand_pygetset
[] = {
760 #define GETSETNAME(op, name) gccr##op##_##name
761 GET (keysz
, "CR.keysz -> acceptable key sizes")
762 GET (name
, "CR.name -> name of this kind of generator")
767 static const PyMethodDef gclatinrand_pymethods
[] = {
768 #define METHNAME(name) gclrmeth_##name
769 NAMETH(tell
, "R.tell() -> OFF")
770 METH (seek
, "R.seek(OFF)")
775 static const PyTypeObject gccrand_pytype_skel
= {
776 PyVarObject_HEAD_INIT(0, 0) /* Header */
777 "GCCRand", /* @tp_name@ */
778 sizeof(gccrand_pyobj
), /* @tp_basicsize@ */
779 0, /* @tp_itemsize@ */
781 0, /* @tp_dealloc@ */
783 0, /* @tp_getattr@ */
784 0, /* @tp_setattr@ */
785 0, /* @tp_compare@ */
787 0, /* @tp_as_number@ */
788 0, /* @tp_as_sequence@ */
789 0, /* @tp_as_mapping@ */
793 0, /* @tp_getattro@ */
794 0, /* @tp_setattro@ */
795 0, /* @tp_as_buffer@ */
796 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
800 "Metaclass for symmetric crypto-based generators.",
802 0, /* @tp_traverse@ */
804 0, /* @tp_richcompare@ */
805 0, /* @tp_weaklistoffset@ */
807 0, /* @tp_iternext@ */
808 0, /* @tp_methods@ */
809 0, /* @tp_members@ */
810 PYGETSET(gccrand
), /* @tp_getset@ */
813 0, /* @tp_descr_get@ */
814 0, /* @tp_descr_set@ */
815 0, /* @tp_dictoffset@ */
817 PyType_GenericAlloc
, /* @tp_alloc@ */
818 abstract_pynew
, /* @tp_new@ */
823 static const PyTypeObject gcrand_pytype_skel
= {
824 PyVarObject_HEAD_INIT(0, 0) /* Header */
825 "GCRand", /* @tp_name@ */
826 sizeof(grand_pyobj
), /* @tp_basicsize@ */
827 0, /* @tp_itemsize@ */
829 grand_pydealloc
, /* @tp_dealloc@ */
831 0, /* @tp_getattr@ */
832 0, /* @tp_setattr@ */
833 0, /* @tp_compare@ */
835 0, /* @tp_as_number@ */
836 0, /* @tp_as_sequence@ */
837 0, /* @tp_as_mapping@ */
841 0, /* @tp_getattro@ */
842 0, /* @tp_setattro@ */
843 0, /* @tp_as_buffer@ */
844 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
848 "Abstract base class for symmetric crypto-based generators.",
850 0, /* @tp_traverse@ */
852 0, /* @tp_richcompare@ */
853 0, /* @tp_weaklistoffset@ */
855 0, /* @tp_iternext@ */
856 0, /* @tp_methods@ */
857 0, /* @tp_members@ */
861 0, /* @tp_descr_get@ */
862 0, /* @tp_descr_set@ */
863 0, /* @tp_dictoffset@ */
865 PyType_GenericAlloc
, /* @tp_alloc@ */
866 abstract_pynew
, /* @tp_new@ */
871 static const PyTypeObject gclatinrand_pytype_skel
= {
872 PyVarObject_HEAD_INIT(0, 0) /* Header */
873 "GCLatinRand", /* @tp_name@ */
874 sizeof(grand_pyobj
), /* @tp_basicsize@ */
875 0, /* @tp_itemsize@ */
877 grand_pydealloc
, /* @tp_dealloc@ */
879 0, /* @tp_getattr@ */
880 0, /* @tp_setattr@ */
881 0, /* @tp_compare@ */
883 0, /* @tp_as_number@ */
884 0, /* @tp_as_sequence@ */
885 0, /* @tp_as_mapping@ */
889 0, /* @tp_getattro@ */
890 0, /* @tp_setattro@ */
891 0, /* @tp_as_buffer@ */
892 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
896 "Abstract base class for symmetric crypto-based generators.",
898 0, /* @tp_traverse@ */
900 0, /* @tp_richcompare@ */
901 0, /* @tp_weaklistoffset@ */
903 0, /* @tp_iternext@ */
904 PYMETHODS(gclatinrand
), /* @tp_methods@ */
905 0, /* @tp_members@ */
909 0, /* @tp_descr_get@ */
910 0, /* @tp_descr_set@ */
911 0, /* @tp_dictoffset@ */
913 PyType_GenericAlloc
, /* @tp_alloc@ */
914 abstract_pynew
, /* @tp_new@ */
919 /*----- SSL and TLS generators --------------------------------------------*/
921 static PyObject
*sslprf_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
924 const gchash
*hco
= &md5
, *hci
= &sha
;
926 static const char *const kwlist
[] = { "key", "seed", "ohash", "ihash", 0 };
928 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&O&|O&O&:new", KWLIST
,
929 convbin
, &k
, convbin
, &s
,
930 convgchash
, &hco
, convgchash
, &hci
))
932 rc
= grand_dopywrap(ty
, sslprf_rand(hco
, hci
, k
.p
, k
.sz
, s
.p
, s
.sz
),
938 static PyObject
*tlsdx_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
941 const gcmac
*mc
= &sha_hmac
;
943 static const char *const kwlist
[] = { "key", "seed", "mac", 0 };
945 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&O&|O&:new", KWLIST
,
946 convbin
, &k
, convbin
, &s
,
949 rc
= grand_dopywrap(ty
, tlsdx_rand(mc
, k
.p
, k
.sz
, s
.p
, s
.sz
), f_freeme
);
954 static PyObject
*tlsprf_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
957 const gcmac
*mcl
= &md5_hmac
, *mcr
= &sha_hmac
;
959 static const char *const kwlist
[] = { "key", "seed", "lmac", "rmac", 0 };
961 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&O&|O&O&:new", KWLIST
,
962 convbin
, &k
, convbin
, &s
,
963 convgcmac
, &mcl
, convgcmac
, &mcr
))
965 rc
= grand_dopywrap(ty
, tlsprf_rand(mcl
, mcr
, k
.p
, k
.sz
, s
.p
, s
.sz
),
971 static const PyTypeObject sslprf_pytype_skel
= {
972 PyVarObject_HEAD_INIT(0, 0) /* Header */
973 "SSLRand", /* @tp_name@ */
974 sizeof(grand_pyobj
), /* @tp_basicsize@ */
975 0, /* @tp_itemsize@ */
977 grand_pydealloc
, /* @tp_dealloc@ */
979 0, /* @tp_getattr@ */
980 0, /* @tp_setattr@ */
981 0, /* @tp_compare@ */
983 0, /* @tp_as_number@ */
984 0, /* @tp_as_sequence@ */
985 0, /* @tp_as_mapping@ */
989 0, /* @tp_getattro@ */
990 0, /* @tp_setattro@ */
991 0, /* @tp_as_buffer@ */
992 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
996 "SSLRand(KEY, SEED, [ohash = md5], [ihash = sha]):\n"
997 " RNG for SSL master secret.",
999 0, /* @tp_traverse@ */
1001 0, /* @tp_richcompare@ */
1002 0, /* @tp_weaklistoffset@ */
1004 0, /* @tp_iternext@ */
1005 0, /* @tp_methods@ */
1006 0, /* @tp_members@ */
1007 0, /* @tp_getset@ */
1010 0, /* @tp_descr_get@ */
1011 0, /* @tp_descr_set@ */
1012 0, /* @tp_dictoffset@ */
1014 PyType_GenericAlloc
, /* @tp_alloc@ */
1015 sslprf_pynew
, /* @tp_new@ */
1020 static const PyTypeObject tlsdx_pytype_skel
= {
1021 PyVarObject_HEAD_INIT(0, 0) /* Header */
1022 "TLSDataExpansion", /* @tp_name@ */
1023 sizeof(grand_pyobj
), /* @tp_basicsize@ */
1024 0, /* @tp_itemsize@ */
1026 grand_pydealloc
, /* @tp_dealloc@ */
1028 0, /* @tp_getattr@ */
1029 0, /* @tp_setattr@ */
1030 0, /* @tp_compare@ */
1032 0, /* @tp_as_number@ */
1033 0, /* @tp_as_sequence@ */
1034 0, /* @tp_as_mapping@ */
1038 0, /* @tp_getattro@ */
1039 0, /* @tp_setattro@ */
1040 0, /* @tp_as_buffer@ */
1041 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
1042 Py_TPFLAGS_BASETYPE
,
1045 "TLSDataExpansion(KEY, SEED, [mac = sha_hmac]):\n"
1046 " TLS data expansion function.",
1048 0, /* @tp_traverse@ */
1050 0, /* @tp_richcompare@ */
1051 0, /* @tp_weaklistoffset@ */
1053 0, /* @tp_iternext@ */
1054 0, /* @tp_methods@ */
1055 0, /* @tp_members@ */
1056 0, /* @tp_getset@ */
1059 0, /* @tp_descr_get@ */
1060 0, /* @tp_descr_set@ */
1061 0, /* @tp_dictoffset@ */
1063 PyType_GenericAlloc
, /* @tp_alloc@ */
1064 tlsdx_pynew
, /* @tp_new@ */
1069 static const PyTypeObject tlsprf_pytype_skel
= {
1070 PyVarObject_HEAD_INIT(0, 0) /* Header */
1071 "TLSPRF", /* @tp_name@ */
1072 sizeof(grand_pyobj
), /* @tp_basicsize@ */
1073 0, /* @tp_itemsize@ */
1075 grand_pydealloc
, /* @tp_dealloc@ */
1077 0, /* @tp_getattr@ */
1078 0, /* @tp_setattr@ */
1079 0, /* @tp_compare@ */
1081 0, /* @tp_as_number@ */
1082 0, /* @tp_as_sequence@ */
1083 0, /* @tp_as_mapping@ */
1087 0, /* @tp_getattro@ */
1088 0, /* @tp_setattro@ */
1089 0, /* @tp_as_buffer@ */
1090 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
1091 Py_TPFLAGS_BASETYPE
,
1094 "TLSPRF(KEY, SEED, [lmac = md5_hmac], [rmac = sha_hmac]):\n"
1095 " TLS pseudorandom function.",
1097 0, /* @tp_traverse@ */
1099 0, /* @tp_richcompare@ */
1100 0, /* @tp_weaklistoffset@ */
1102 0, /* @tp_iternext@ */
1103 0, /* @tp_methods@ */
1104 0, /* @tp_members@ */
1105 0, /* @tp_getset@ */
1108 0, /* @tp_descr_get@ */
1109 0, /* @tp_descr_set@ */
1110 0, /* @tp_dictoffset@ */
1112 PyType_GenericAlloc
, /* @tp_alloc@ */
1113 tlsprf_pynew
, /* @tp_new@ */
1118 /*----- DSA generator -----------------------------------------------------*/
1120 static PyObject
*dsarand_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
1124 static const char *const kwlist
[] = { "seed", 0 };
1126 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&:new", KWLIST
, convbin
, &in
))
1128 rc
= grand_dopywrap(ty
, dsarand_create(in
.p
, in
.sz
), f_freeme
);
1133 static PyObject
*drget_seed(PyObject
*me
, void *hunoz
)
1135 grand
*r
= GRAND_R(me
);
1136 int n
= r
->ops
->misc(r
, DSARAND_SEEDSZ
);
1137 PyObject
*rc
= bytestring_pywrap(0, n
);
1138 r
->ops
->misc(r
, DSARAND_GETSEED
, BIN_PTR(rc
));
1142 static const PyGetSetDef dsarand_pygetset
[] = {
1143 #define GETSETNAME(op, name) dr##op##_##name
1144 GET (seed
, "R.seed -> current generator seed")
1149 static const PyTypeObject dsarand_pytype_skel
= {
1150 PyVarObject_HEAD_INIT(0, 0) /* Header */
1151 "DSARand", /* @tp_name@ */
1152 sizeof(grand_pyobj
), /* @tp_basicsize@ */
1153 0, /* @tp_itemsize@ */
1155 grand_pydealloc
, /* @tp_dealloc@ */
1157 0, /* @tp_getattr@ */
1158 0, /* @tp_setattr@ */
1159 0, /* @tp_compare@ */
1161 0, /* @tp_as_number@ */
1162 0, /* @tp_as_sequence@ */
1163 0, /* @tp_as_mapping@ */
1167 0, /* @tp_getattro@ */
1168 0, /* @tp_setattro@ */
1169 0, /* @tp_as_buffer@ */
1170 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
1171 Py_TPFLAGS_BASETYPE
,
1174 "DSARand(SEED): pseudorandom number generator for DSA parameters.",
1176 0, /* @tp_traverse@ */
1178 0, /* @tp_richcompare@ */
1179 0, /* @tp_weaklistoffset@ */
1181 0, /* @tp_iternext@ */
1182 0, /* @tp_methods@ */
1183 0, /* @tp_members@ */
1184 PYGETSET(dsarand
), /* @tp_getset@ */
1187 0, /* @tp_descr_get@ */
1188 0, /* @tp_descr_set@ */
1189 0, /* @tp_dictoffset@ */
1191 PyType_GenericAlloc
, /* @tp_alloc@ */
1192 dsarand_pynew
, /* @tp_new@ */
1197 /*----- Blum-Blum-Shub generator ------------------------------------------*/
1199 static PyObject
*bbs_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
1201 mp
*n
= 0, *x
= MP_TWO
;
1203 static const char *const kwlist
[] = { "n", "x", 0 };
1205 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&|O&:new", KWLIST
,
1206 convmp
, &n
, convmp
, &x
))
1208 rc
= grand_dopywrap(ty
, bbs_rand(n
, x
), f_freeme
);
1215 static PyObject
*bbsmeth_step(PyObject
*me
)
1216 { grand
*r
= GRAND_R(me
); r
->ops
->misc(r
, BBS_STEP
); RETURN_ME
; }
1218 static PyObject
*bbsmeth_bits(PyObject
*me
, PyObject
*arg
)
1220 grand
*r
= GRAND_R(me
); unsigned n
; uint32 w
;
1221 if (!PyArg_ParseTuple(arg
, "O&:bits", convuint
, &n
)) goto end
;
1222 if (n
> 32) VALERR("can't get more than 32 bits");
1223 r
->ops
->misc(r
, BBS_BITS
, n
, &w
); return (getulong(w
));
1228 static PyObject
*bbsmeth_wrap(PyObject
*me
)
1229 { grand
*r
= GRAND_R(me
); r
->ops
->misc(r
, BBS_WRAP
); RETURN_ME
; }
1231 static PyObject
*bbsget_n(PyObject
*me
, void *hunoz
)
1233 mp
*x
= MP_NEW
; grand
*r
= GRAND_R(me
);
1234 r
->ops
->misc(r
, BBS_MOD
, &x
); return (mp_pywrap(x
));
1237 static PyObject
*bbsget_x(PyObject
*me
, void *hunoz
)
1239 mp
*x
= MP_NEW
; grand
*r
= GRAND_R(me
);
1240 r
->ops
->misc(r
, BBS_STATE
, &x
); return (mp_pywrap(x
));
1243 static int bbsset_x(PyObject
*me
, PyObject
*val
, void *hunoz
)
1245 mp
*x
= 0; grand
*r
= GRAND_R(me
); int rc
= -1; if (!val
) NIERR("__del__");
1246 if ((x
= getmp(val
)) == 0) goto end
;
1247 r
->ops
->misc(r
, BBS_SET
, x
); rc
= 0;
1248 end
: mp_drop(x
); return (rc
);
1251 static PyObject
*bbsget_stepsz(PyObject
*me
, void *hunoz
)
1253 grand
*r
= GRAND_R(me
);
1254 return (PyInt_FromLong(r
->ops
->misc(r
, BBS_STEPSZ
)));
1257 static const PyMethodDef bbs_pymethods
[] = {
1258 #define METHNAME(name) bbsmeth_##name
1259 NAMETH(step
, "R.step(): steps the generator (not useful)")
1260 METH (bits
, "R.bits(N) -> W: returns N bits (<= 32) from the generator")
1261 NAMETH(wrap
, "R.wrap(): flushes unused bits in internal buffer")
1266 static const PyGetSetDef bbs_pygetset
[] = {
1267 #define GETSETNAME(op, name) bbs##op##_##name
1268 GET (n
, "R.n -> Blum modulus")
1269 GETSET(x
, "R.x -> current seed value")
1270 GET (stepsz
, "R.stepsz -> number of bits generated per step")
1275 static const PyTypeObject bbs_pytype_skel
= {
1276 PyVarObject_HEAD_INIT(0, 0) /* Header */
1277 "BlumBlumShub", /* @tp_name@ */
1278 sizeof(grand_pyobj
), /* @tp_basicsize@ */
1279 0, /* @tp_itemsize@ */
1281 grand_pydealloc
, /* @tp_dealloc@ */
1283 0, /* @tp_getattr@ */
1284 0, /* @tp_setattr@ */
1285 0, /* @tp_compare@ */
1287 0, /* @tp_as_number@ */
1288 0, /* @tp_as_sequence@ */
1289 0, /* @tp_as_mapping@ */
1293 0, /* @tp_getattro@ */
1294 0, /* @tp_setattro@ */
1295 0, /* @tp_as_buffer@ */
1296 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
1297 Py_TPFLAGS_BASETYPE
,
1300 "BlumBlumShub(N, [x = 2]): Blum-Blum-Shub pseudorandom number generator.",
1302 0, /* @tp_traverse@ */
1304 0, /* @tp_richcompare@ */
1305 0, /* @tp_weaklistoffset@ */
1307 0, /* @tp_iternext@ */
1308 PYMETHODS(bbs
), /* @tp_methods@ */
1309 0, /* @tp_members@ */
1310 PYGETSET(bbs
), /* @tp_getset@ */
1313 0, /* @tp_descr_get@ */
1314 0, /* @tp_descr_set@ */
1315 0, /* @tp_dictoffset@ */
1317 PyType_GenericAlloc
, /* @tp_alloc@ */
1318 bbs_pynew
, /* @tp_new@ */
1323 typedef struct bbspriv_pyobj
{
1328 #define BBSPRIV_BP(o) (&((bbspriv_pyobj *)(o))->bp)
1330 static PyObject
*bbspriv_pynew(PyTypeObject
*ty
,
1331 PyObject
*arg
, PyObject
*kw
)
1333 mp
*p
= 0, *q
= 0, *n
= 0, *x
= MP_TWO
;
1334 bbspriv_pyobj
*rc
= 0;
1335 static const char *const kwlist
[] = { "n", "p", "q", "seed", 0 };
1337 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "|O&O&O&O&:new", KWLIST
,
1338 convmp
, &n
, convmp
, &p
, convmp
, &q
,
1341 if (!n
+ !p
+ !q
> 1) VALERR("must specify at least two of n, p, q");
1342 if (!n
) n
= mp_mul(MP_NEW
, p
, q
);
1343 else if (!p
) mp_div(&p
, 0, n
, q
);
1344 else if (!q
) mp_div(&q
, 0, n
, p
);
1345 rc
= (bbspriv_pyobj
*)ty
->tp_alloc(ty
, 0);
1346 rc
->gr
.r
= bbs_rand(n
, x
);
1347 rc
->gr
.f
= f_freeme
;
1348 rc
->bp
.p
= MP_COPY(p
);
1349 rc
->bp
.q
= MP_COPY(q
);
1350 rc
->bp
.n
= MP_COPY(n
);
1352 mp_drop(p
); mp_drop(q
); mp_drop(n
); mp_drop(x
);
1353 return ((PyObject
*)rc
);
1356 static PyObject
*bpmeth_generate(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
1358 bbs_priv bp
= { 0 };
1360 struct excinfo exc
= EXCINFO_INIT
;
1361 pypgev evt
= { { 0 } };
1362 unsigned nbits
, n
= 0;
1363 grand
*r
= &rand_global
;
1364 static const char *const kwlist
[] =
1365 { "nbits", "event", "rng", "nsteps", "seed", 0 };
1366 bbspriv_pyobj
*rc
= 0;
1369 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&|O&O&O&O&:generate", KWLIST
,
1370 convuint
, &nbits
, convpgev
, &evt
,
1371 convgrand
, &r
, convuint
, &n
, convmp
, &x
))
1373 if (bbs_gen(&bp
, nbits
, r
, n
, evt
.ev
.proc
, evt
.ev
.ctx
))
1375 rc
= PyObject_New(bbspriv_pyobj
, bbspriv_pytype
);
1376 rc
->gr
.r
= bbs_rand(bp
.n
, x
);
1377 rc
->gr
.f
= f_freeme
;
1378 rc
->bp
.p
= MP_COPY(bp
.p
);
1379 rc
->bp
.q
= MP_COPY(bp
.q
);
1380 rc
->bp
.n
= MP_COPY(bp
.n
);
1382 mp_drop(bp
.p
); mp_drop(bp
.q
); mp_drop(bp
.n
); mp_drop(x
);
1383 return ((PyObject
*)rc
);
1386 static void bbspriv_pydealloc(PyObject
*me
)
1388 bbs_priv
*bp
= BBSPRIV_BP(me
);
1392 grand_pydealloc(me
);
1395 static PyObject
*bpmeth_ff(PyObject
*me
, PyObject
*arg
)
1397 mp
*n
= 0; grand
*r
= GRAND_R(me
); bbs_priv
*bp
= BBSPRIV_BP(me
);
1398 if (!PyArg_ParseTuple(arg
, "O&:ff", convmp
, &n
)) return (0);
1399 r
->ops
->misc(r
, BBS_FF
, bp
, n
); RETURN_ME
;
1402 static PyObject
*bpmeth_rew(PyObject
*me
, PyObject
*arg
)
1404 mp
*n
= 0; grand
*r
= GRAND_R(me
); bbs_priv
*bp
= BBSPRIV_BP(me
);
1405 if (!PyArg_ParseTuple(arg
, "O&:rew", convmp
, &n
)) return (0);
1406 r
->ops
->misc(r
, BBS_REW
, bp
, n
); RETURN_ME
;
1409 static PyObject
*bpget_n(PyObject
*me
, void *hunoz
)
1410 { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me
)->n
))); }
1412 static PyObject
*bpget_p(PyObject
*me
, void *hunoz
)
1413 { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me
)->p
))); }
1415 static PyObject
*bpget_q(PyObject
*me
, void *hunoz
)
1416 { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me
)->q
))); }
1418 static const PyMethodDef bbspriv_pymethods
[] = {
1419 #define METHNAME(name) bpmeth_##name
1420 METH (ff
, "R.ff(N): fast-forward N places")
1421 METH (rew
, "R.rew(N): rewind N places")
1422 KWSMTH(generate
, "generate(NBITS, [event = pgen_nullev], "
1423 "[rng = rand], [nsteps = 0], [seed = 2]) -> R")
1428 static const PyGetSetDef bbspriv_pygetset
[] = {
1429 #define GETSETNAME(op, name) bp##op##_##name
1430 GET (n
, "R.n -> Blum modulus")
1431 GET (p
, "R.p -> one of the factors of the modulus")
1432 GET (q
, "R.q -> one of the factors of the modulus")
1437 static const PyTypeObject bbspriv_pytype_skel
= {
1438 PyVarObject_HEAD_INIT(0, 0) /* Header */
1439 "BBSPriv", /* @tp_name@ */
1440 sizeof(bbspriv_pyobj
), /* @tp_basicsize@ */
1441 0, /* @tp_itemsize@ */
1443 bbspriv_pydealloc
, /* @tp_dealloc@ */
1445 0, /* @tp_getattr@ */
1446 0, /* @tp_setattr@ */
1447 0, /* @tp_compare@ */
1449 0, /* @tp_as_number@ */
1450 0, /* @tp_as_sequence@ */
1451 0, /* @tp_as_mapping@ */
1455 0, /* @tp_getattro@ */
1456 0, /* @tp_setattro@ */
1457 0, /* @tp_as_buffer@ */
1458 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
1459 Py_TPFLAGS_BASETYPE
,
1462 "BBSPriv(..., [seed = 2]): Blum-Blum-Shub, with private key.\n"
1463 " Keywords: n, p, q; must provide at least two",
1465 0, /* @tp_traverse@ */
1467 0, /* @tp_richcompare@ */
1468 0, /* @tp_weaklistoffset@ */
1470 0, /* @tp_iternext@ */
1471 PYMETHODS(bbspriv
), /* @tp_methods@ */
1472 0, /* @tp_members@ */
1473 PYGETSET(bbspriv
), /* @tp_getset@ */
1476 0, /* @tp_descr_get@ */
1477 0, /* @tp_descr_set@ */
1478 0, /* @tp_dictoffset@ */
1480 PyType_GenericAlloc
, /* @tp_alloc@ */
1481 bbspriv_pynew
, /* @tp_new@ */
1486 /*----- Global stuff ------------------------------------------------------*/
1488 static const struct nameval consts
[] = {
1493 void rand_pyinit(void)
1495 INITTYPE(grand
, root
);
1496 INITTYPE(truerand
, grand
);
1497 INITTYPE(fibrand
, grand
);
1498 INITTYPE(lcrand
, grand
);
1499 INITTYPE(dsarand
, grand
);
1500 INITTYPE(bbs
, grand
);
1501 INITTYPE(bbspriv
, bbs
);
1502 INITTYPE(sslprf
, grand
);
1503 INITTYPE(tlsdx
, grand
);
1504 INITTYPE(tlsprf
, grand
);
1505 INITTYPE(gccrand
, type
);
1506 INITTYPE(gcrand
, grand
);
1507 INITTYPE(gclatinrand
, gcrand
);
1508 rand_noisesrc(RAND_GLOBAL
, &noise_source
);
1509 rand_seed(RAND_GLOBAL
, 160);
1512 static const char *crand_namefn(const void *p
)
1513 { const gccrand_info
*const *cls
= p
; return (*cls ?
(*cls
)->name
: 0); }
1514 static PyObject
*crand_valfn(const void *p
)
1515 { const gccrand_info
*const *cls
= p
; return (gccrand_pywrap(*cls
)); }
1517 void rand_pyinsert(PyObject
*mod
)
1519 INSERT("GRand", grand_pytype
);
1520 INSERT("TrueRand", truerand_pytype
);
1521 INSERT("LCRand", lcrand_pytype
);
1522 INSERT("FibRand", fibrand_pytype
);
1523 INSERT("SSLRand", sslprf_pytype
);
1524 INSERT("TLSDataExpansion", tlsdx_pytype
);
1525 INSERT("TLSPRF", tlsprf_pytype
);
1526 INSERT("DSARand", dsarand_pytype
);
1527 INSERT("BlumBlumShub", bbs_pytype
);
1528 INSERT("BBSPriv", bbspriv_pytype
);
1529 INSERT("GCCRand", gccrand_pytype
);
1530 INSERT("GCRand", gcrand_pytype
);
1531 INSERT("GCLatinRand", gclatinrand_pytype
);
1532 rand_pyobj
= grand_pywrap(&rand_global
, 0); Py_INCREF(rand_pyobj
);
1533 gccrands_dict
= make_algtab(gcrandtab
, sizeof(gccrand_info
*),
1534 crand_namefn
, crand_valfn
);
1535 INSERT("gccrands", gccrands_dict
); Py_INCREF(gccrands_dict
);
1536 INSERT("rand", rand_pyobj
);
1537 setconstants(mod
, consts
);
1540 /*----- That's all, folks -------------------------------------------------*/