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 "catacomb.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 "catacomb.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 "catacomb.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 "catacomb.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
{
591 typedef struct gccrand_pyobj
{
593 const gccrand_info
*info
;
595 #define GCCRAND_INFO(o) (((gccrand_pyobj *)(o))->info)
597 #define GCCRAND_DEF(name, ksz, func, f) \
598 static const gccrand_info func##_info = \
599 { name, ksz, f, (gcrand_func *)func };
602 static const gccrand_info
*const gcrandtab
[] = {
603 #define GCCRAND_ENTRY(name, ksz, func, f) &func##_info,
608 static PyObject
*gcrand_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
610 const gccrand_info
*info
= GCCRAND_INFO(ty
);
611 static char *kwlist
[] = { "key", 0 };
615 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "s#:new", kwlist
, &k
, &n
))
617 if (keysz(n
, info
->keysz
) != n
) VALERR("bad key length");
618 return (grand_dopywrap(ty
, info
->func(k
, n
), f_freeme
));
623 static PyObject
*gcirand_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
625 const gccrand_info
*info
= GCCRAND_INFO(ty
);
627 static char *kwlist
[] = { "key", "i", 0 };
631 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "s#O&:new", kwlist
,
632 &k
, &n
, convu32
, &i
))
634 if (keysz(n
, info
->keysz
) != n
) VALERR("bad key length");
635 return (grand_dopywrap(ty
,
636 ((gcirand_func
*)info
->func
)(k
, n
, i
),
642 static PyObject
*gccrand_pywrap(const gccrand_info
*info
)
644 gccrand_pyobj
*g
= newtype(gccrand_pytype
, 0, info
->name
);
646 g
->ty
.ht_type
.tp_basicsize
= sizeof(grand_pyobj
);
647 g
->ty
.ht_type
.tp_base
= gcrand_pytype
;
648 Py_INCREF(gcrand_pytype
);
649 g
->ty
.ht_type
.tp_flags
= (Py_TPFLAGS_DEFAULT
|
650 Py_TPFLAGS_BASETYPE
|
651 Py_TPFLAGS_HEAPTYPE
);
652 g
->ty
.ht_type
.tp_alloc
= PyType_GenericAlloc
;
653 g
->ty
.ht_type
.tp_free
= 0;
654 if (info
->f
& RNGF_INT
)
655 g
->ty
.ht_type
.tp_new
= gcirand_pynew
;
657 g
->ty
.ht_type
.tp_new
= gcrand_pynew
;
658 PyType_Ready(&g
->ty
.ht_type
);
659 return ((PyObject
*)g
);
662 static PyObject
*gccrget_name(PyObject
*me
, void *hunoz
)
663 { return (PyString_FromString(GCCRAND_INFO(me
)->name
)); }
664 static PyObject
*gccrget_keysz(PyObject
*me
, void *hunoz
)
665 { return (keysz_pywrap(GCCRAND_INFO(me
)->keysz
)); }
667 static PyGetSetDef gccrand_pygetset
[] = {
668 #define GETSETNAME(op, name) gccr##op##_##name
669 GET (keysz
, "CR.keysz -> acceptable key sizes")
670 GET (name
, "CR.name -> name of this kind of generator")
675 static PyTypeObject gccrand_pytype_skel
= {
676 PyObject_HEAD_INIT(0) 0, /* Header */
677 "catacomb.GCCRand", /* @tp_name@ */
678 sizeof(gccrand_pyobj
), /* @tp_basicsize@ */
679 0, /* @tp_itemsize@ */
681 0, /* @tp_dealloc@ */
683 0, /* @tp_getattr@ */
684 0, /* @tp_setattr@ */
685 0, /* @tp_compare@ */
687 0, /* @tp_as_number@ */
688 0, /* @tp_as_sequence@ */
689 0, /* @tp_as_mapping@ */
693 0, /* @tp_getattro@ */
694 0, /* @tp_setattro@ */
695 0, /* @tp_as_buffer@ */
696 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
700 "Metaclass for symmetric crypto-based generators.",
702 0, /* @tp_traverse@ */
704 0, /* @tp_richcompare@ */
705 0, /* @tp_weaklistoffset@ */
707 0, /* @tp_iternext@ */
708 0, /* @tp_methods@ */
709 0, /* @tp_members@ */
710 gccrand_pygetset
, /* @tp_getset@ */
713 0, /* @tp_descr_get@ */
714 0, /* @tp_descr_set@ */
715 0, /* @tp_dictoffset@ */
717 PyType_GenericAlloc
, /* @tp_alloc@ */
718 abstract_pynew
, /* @tp_new@ */
723 static PyTypeObject gcrand_pytype_skel
= {
724 PyObject_HEAD_INIT(0) 0, /* Header */
725 "catacomb.GCRand", /* @tp_name@ */
726 sizeof(grand_pyobj
), /* @tp_basicsize@ */
727 0, /* @tp_itemsize@ */
729 grand_pydealloc
, /* @tp_dealloc@ */
731 0, /* @tp_getattr@ */
732 0, /* @tp_setattr@ */
733 0, /* @tp_compare@ */
735 0, /* @tp_as_number@ */
736 0, /* @tp_as_sequence@ */
737 0, /* @tp_as_mapping@ */
741 0, /* @tp_getattro@ */
742 0, /* @tp_setattro@ */
743 0, /* @tp_as_buffer@ */
744 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
748 "Abstract base class for symmetric crypto-based generators.",
750 0, /* @tp_traverse@ */
752 0, /* @tp_richcompare@ */
753 0, /* @tp_weaklistoffset@ */
755 0, /* @tp_iternext@ */
756 0, /* @tp_methods@ */
757 0, /* @tp_members@ */
761 0, /* @tp_descr_get@ */
762 0, /* @tp_descr_set@ */
763 0, /* @tp_dictoffset@ */
765 PyType_GenericAlloc
, /* @tp_alloc@ */
766 abstract_pynew
, /* @tp_new@ */
771 /*----- SSL and TLS generators --------------------------------------------*/
773 static PyObject
*sslprf_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
777 const gchash
*hco
= &md5
, *hci
= &sha
;
779 char *kwlist
[] = { "key", "seed", "ohash", "ihash", 0 };
781 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "s#s#|O&O&:new", kwlist
,
783 convgchash
, &hco
, convgchash
, &hci
))
785 rc
= grand_dopywrap(ty
, sslprf_rand(hco
, hci
, k
, ksz
, s
, ssz
), f_freeme
);
790 static PyObject
*tlsdx_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
794 const gcmac
*mc
= &sha_hmac
;
796 char *kwlist
[] = { "key", "seed", "mac", 0 };
798 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "s#s#|O&:new", kwlist
,
802 rc
= grand_dopywrap(ty
, tlsdx_rand(mc
, k
, ksz
, s
, ssz
), f_freeme
);
807 static PyObject
*tlsprf_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
811 const gcmac
*mcl
= &md5_hmac
, *mcr
= &sha_hmac
;
813 char *kwlist
[] = { "key", "seed", "lmac", "rmac", 0 };
815 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "s#s#|O&O&:new", kwlist
,
817 convgcmac
, &mcl
, convgcmac
, &mcr
))
819 rc
= grand_dopywrap(ty
, tlsprf_rand(mcl
, mcr
, k
, ksz
, s
, ssz
), f_freeme
);
824 static PyTypeObject sslprf_pytype_skel
= {
825 PyObject_HEAD_INIT(0) 0, /* Header */
826 "catacomb.SSLRand", /* @tp_name@ */
827 sizeof(grand_pyobj
), /* @tp_basicsize@ */
828 0, /* @tp_itemsize@ */
830 grand_pydealloc
, /* @tp_dealloc@ */
832 0, /* @tp_getattr@ */
833 0, /* @tp_setattr@ */
834 0, /* @tp_compare@ */
836 0, /* @tp_as_number@ */
837 0, /* @tp_as_sequence@ */
838 0, /* @tp_as_mapping@ */
842 0, /* @tp_getattro@ */
843 0, /* @tp_setattro@ */
844 0, /* @tp_as_buffer@ */
845 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
849 "Random number generator for SSL master secret.",
851 0, /* @tp_traverse@ */
853 0, /* @tp_richcompare@ */
854 0, /* @tp_weaklistoffset@ */
856 0, /* @tp_iternext@ */
857 0, /* @tp_methods@ */
858 0, /* @tp_members@ */
862 0, /* @tp_descr_get@ */
863 0, /* @tp_descr_set@ */
864 0, /* @tp_dictoffset@ */
866 PyType_GenericAlloc
, /* @tp_alloc@ */
867 sslprf_pynew
, /* @tp_new@ */
872 static PyTypeObject tlsdx_pytype_skel
= {
873 PyObject_HEAD_INIT(0) 0, /* Header */
874 "catacomb.TLSDataExpansion", /* @tp_name@ */
875 sizeof(grand_pyobj
), /* @tp_basicsize@ */
876 0, /* @tp_itemsize@ */
878 grand_pydealloc
, /* @tp_dealloc@ */
880 0, /* @tp_getattr@ */
881 0, /* @tp_setattr@ */
882 0, /* @tp_compare@ */
884 0, /* @tp_as_number@ */
885 0, /* @tp_as_sequence@ */
886 0, /* @tp_as_mapping@ */
890 0, /* @tp_getattro@ */
891 0, /* @tp_setattro@ */
892 0, /* @tp_as_buffer@ */
893 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
897 "TLS data expansion function.",
899 0, /* @tp_traverse@ */
901 0, /* @tp_richcompare@ */
902 0, /* @tp_weaklistoffset@ */
904 0, /* @tp_iternext@ */
905 0, /* @tp_methods@ */
906 0, /* @tp_members@ */
910 0, /* @tp_descr_get@ */
911 0, /* @tp_descr_set@ */
912 0, /* @tp_dictoffset@ */
914 PyType_GenericAlloc
, /* @tp_alloc@ */
915 tlsdx_pynew
, /* @tp_new@ */
920 static PyTypeObject tlsprf_pytype_skel
= {
921 PyObject_HEAD_INIT(0) 0, /* Header */
922 "catacomb.TLSPRF", /* @tp_name@ */
923 sizeof(grand_pyobj
), /* @tp_basicsize@ */
924 0, /* @tp_itemsize@ */
926 grand_pydealloc
, /* @tp_dealloc@ */
928 0, /* @tp_getattr@ */
929 0, /* @tp_setattr@ */
930 0, /* @tp_compare@ */
932 0, /* @tp_as_number@ */
933 0, /* @tp_as_sequence@ */
934 0, /* @tp_as_mapping@ */
938 0, /* @tp_getattro@ */
939 0, /* @tp_setattro@ */
940 0, /* @tp_as_buffer@ */
941 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
945 "TLS pseudorandom function.",
947 0, /* @tp_traverse@ */
949 0, /* @tp_richcompare@ */
950 0, /* @tp_weaklistoffset@ */
952 0, /* @tp_iternext@ */
953 0, /* @tp_methods@ */
954 0, /* @tp_members@ */
958 0, /* @tp_descr_get@ */
959 0, /* @tp_descr_set@ */
960 0, /* @tp_dictoffset@ */
962 PyType_GenericAlloc
, /* @tp_alloc@ */
963 tlsprf_pynew
, /* @tp_new@ */
968 /*----- DSA generator -----------------------------------------------------*/
970 static PyObject
*dsarand_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
975 char *kwlist
[] = { "seed", 0 };
977 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "s#:new", kwlist
, &p
, &sz
))
979 rc
= grand_dopywrap(ty
, dsarand_create(p
, sz
), f_freeme
);
984 static PyObject
*drget_seed(PyObject
*me
, void *hunoz
)
986 grand
*r
= GRAND_R(me
);
987 int n
= r
->ops
->misc(r
, DSARAND_SEEDSZ
);
988 PyObject
*rc
= bytestring_pywrap(0, n
);
989 r
->ops
->misc(r
, DSARAND_GETSEED
, PyString_AS_STRING(rc
));
993 static PyGetSetDef dsarand_pygetset
[] = {
994 #define GETSETNAME(op, name) dr##op##_##name
995 GET (seed
, "R.seed -> current generator seed")
1000 static PyTypeObject dsarand_pytype_skel
= {
1001 PyObject_HEAD_INIT(0) 0, /* Header */
1002 "catacomb.DSARand", /* @tp_name@ */
1003 sizeof(grand_pyobj
), /* @tp_basicsize@ */
1004 0, /* @tp_itemsize@ */
1006 grand_pydealloc
, /* @tp_dealloc@ */
1008 0, /* @tp_getattr@ */
1009 0, /* @tp_setattr@ */
1010 0, /* @tp_compare@ */
1012 0, /* @tp_as_number@ */
1013 0, /* @tp_as_sequence@ */
1014 0, /* @tp_as_mapping@ */
1018 0, /* @tp_getattro@ */
1019 0, /* @tp_setattro@ */
1020 0, /* @tp_as_buffer@ */
1021 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
1022 Py_TPFLAGS_BASETYPE
,
1025 "Pseudorandom number generator for constructing DSA parameters.",
1027 0, /* @tp_traverse@ */
1029 0, /* @tp_richcompare@ */
1030 0, /* @tp_weaklistoffset@ */
1032 0, /* @tp_iternext@ */
1033 0, /* @tp_methods@ */
1034 0, /* @tp_members@ */
1035 dsarand_pygetset
, /* @tp_getset@ */
1038 0, /* @tp_descr_get@ */
1039 0, /* @tp_descr_set@ */
1040 0, /* @tp_dictoffset@ */
1042 PyType_GenericAlloc
, /* @tp_alloc@ */
1043 dsarand_pynew
, /* @tp_new@ */
1048 /*----- Blum-Blum-Shub generator ------------------------------------------*/
1050 static PyObject
*bbs_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
1052 mp
*n
= 0, *x
= MP_TWO
;
1054 char *kwlist
[] = { "n", "x", 0 };
1056 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&|O&:new", kwlist
,
1057 convmp
, &n
, convmp
, &x
))
1059 rc
= grand_dopywrap(ty
, bbs_rand(n
, x
), f_freeme
);
1066 static PyObject
*bbsmeth_step(PyObject
*me
, PyObject
*arg
)
1068 grand
*r
= GRAND_R(me
); if (!PyArg_ParseTuple(arg
, ":step")) return (0);
1069 r
->ops
->misc(r
, BBS_STEP
); RETURN_ME
;
1072 static PyObject
*bbsmeth_bits(PyObject
*me
, PyObject
*arg
)
1074 grand
*r
= GRAND_R(me
); unsigned n
; uint32 w
;
1075 if (!PyArg_ParseTuple(arg
, "O&:bits", convuint
, &n
)) goto end
;
1076 if (n
> 32) VALERR("can't get more than 32 bits");
1077 r
->ops
->misc(r
, BBS_BITS
, n
, &w
); return (getulong(w
));
1082 static PyObject
*bbsmeth_wrap(PyObject
*me
, PyObject
*arg
)
1084 grand
*r
= GRAND_R(me
); if (!PyArg_ParseTuple(arg
, ":wrap")) return (0);
1085 r
->ops
->misc(r
, BBS_WRAP
); RETURN_ME
;
1088 static PyObject
*bbsget_n(PyObject
*me
, void *hunoz
)
1090 mp
*x
= MP_NEW
; grand
*r
= GRAND_R(me
);
1091 r
->ops
->misc(r
, BBS_MOD
, &x
); return (mp_pywrap(x
));
1094 static PyObject
*bbsget_x(PyObject
*me
, void *hunoz
)
1096 mp
*x
= MP_NEW
; grand
*r
= GRAND_R(me
);
1097 r
->ops
->misc(r
, BBS_STATE
, &x
); return (mp_pywrap(x
));
1100 static int bbsset_x(PyObject
*me
, PyObject
*val
, void *hunoz
)
1102 mp
*x
= 0; grand
*r
= GRAND_R(me
); int rc
= -1; if (!x
) NIERR("__del__");
1103 if ((x
= getmp(val
)) == 0) goto end
; r
->ops
->misc(r
, BBS_SET
, x
); rc
= 0;
1104 end
: mp_drop(x
); return (rc
);
1107 static PyObject
*bbsget_stepsz(PyObject
*me
, void *hunoz
)
1109 grand
*r
= GRAND_R(me
);
1110 return (PyInt_FromLong(r
->ops
->misc(r
, BBS_STEPSZ
)));
1113 static PyMethodDef bbs_pymethods
[] = {
1114 #define METHNAME(name) bbsmeth_##name
1115 METH (step
, "R.step(): steps the generator (not useful)")
1116 METH (bits
, "R.bits(N) -> W: returns N bits (<= 32) from the generator")
1117 METH (wrap
, "R.wrap(): flushes unused bits in internal buffer")
1122 static PyGetSetDef bbs_pygetset
[] = {
1123 #define GETSETNAME(op, name) bbs##op##_##name
1124 GET (n
, "R.n -> Blum modulus")
1125 GETSET(x
, "R.x -> current seed value")
1126 GET (stepsz
, "R.stepsz -> number of bits generated per step")
1131 static PyTypeObject bbs_pytype_skel
= {
1132 PyObject_HEAD_INIT(0) 0, /* Header */
1133 "catacomb.BlumBlumShub", /* @tp_name@ */
1134 sizeof(grand_pyobj
), /* @tp_basicsize@ */
1135 0, /* @tp_itemsize@ */
1137 grand_pydealloc
, /* @tp_dealloc@ */
1139 0, /* @tp_getattr@ */
1140 0, /* @tp_setattr@ */
1141 0, /* @tp_compare@ */
1143 0, /* @tp_as_number@ */
1144 0, /* @tp_as_sequence@ */
1145 0, /* @tp_as_mapping@ */
1149 0, /* @tp_getattro@ */
1150 0, /* @tp_setattro@ */
1151 0, /* @tp_as_buffer@ */
1152 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
1153 Py_TPFLAGS_BASETYPE
,
1156 "Blum-Blum-Shub strong pseudorandom number generator.",
1158 0, /* @tp_traverse@ */
1160 0, /* @tp_richcompare@ */
1161 0, /* @tp_weaklistoffset@ */
1163 0, /* @tp_iternext@ */
1164 bbs_pymethods
, /* @tp_methods@ */
1165 0, /* @tp_members@ */
1166 bbs_pygetset
, /* @tp_getset@ */
1169 0, /* @tp_descr_get@ */
1170 0, /* @tp_descr_set@ */
1171 0, /* @tp_dictoffset@ */
1173 PyType_GenericAlloc
, /* @tp_alloc@ */
1174 bbs_pynew
, /* @tp_new@ */
1179 typedef struct bbspriv_pyobj
{
1184 #define BBSPRIV_BP(o) (&((bbspriv_pyobj *)(o))->bp)
1186 static PyObject
*bbspriv_pynew(PyTypeObject
*ty
,
1187 PyObject
*arg
, PyObject
*kw
)
1189 mp
*p
= 0, *q
= 0, *n
= 0, *x
= MP_TWO
;
1190 bbspriv_pyobj
*rc
= 0;
1191 char *kwlist
[] = { "n", "p", "q", "seed", 0 };
1193 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "|O&O&O&O&:new", kwlist
,
1194 convmp
, &n
, convmp
, &p
, convmp
, &q
,
1197 if (!n
+ !p
+ !q
> 1) VALERR("must specify at least two of n, p, q");
1198 if (!n
) n
= mp_mul(MP_NEW
, p
, q
);
1199 else if (!p
) mp_div(&p
, 0, n
, q
);
1200 else if (!q
) mp_div(&q
, 0, n
, p
);
1201 rc
= (bbspriv_pyobj
*)ty
->tp_alloc(ty
, 0);
1202 rc
->gr
.r
= bbs_rand(n
, x
);
1203 rc
->gr
.f
= f_freeme
;
1204 rc
->bp
.p
= MP_COPY(p
);
1205 rc
->bp
.q
= MP_COPY(q
);
1206 rc
->bp
.n
= MP_COPY(n
);
1208 mp_drop(p
); mp_drop(q
); mp_drop(n
); mp_drop(x
);
1209 return ((PyObject
*)rc
);
1212 static PyObject
*meth__BBSPriv_generate(PyObject
*me
,
1213 PyObject
*arg
, PyObject
*kw
)
1215 bbs_priv bp
= { 0 };
1218 unsigned nbits
, n
= 0;
1219 grand
*r
= &rand_global
;
1220 char *kwlist
[] = { "class", "nbits", "event", "rng", "nsteps", "seed", 0 };
1221 bbspriv_pyobj
*rc
= 0;
1223 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO&|O&O&O&O&:generate", kwlist
,
1224 &me
, convuint
, &nbits
, convpgev
, &evt
,
1225 convgrand
, &r
, convuint
, &n
, convmp
, &x
))
1227 if (bbs_gen(&bp
, nbits
, r
, n
, evt
.proc
, evt
.ctx
))
1228 VALERR("prime genration failed");
1229 rc
= PyObject_New(bbspriv_pyobj
, bbspriv_pytype
);
1230 rc
->gr
.r
= bbs_rand(bp
.n
, x
);
1231 rc
->gr
.f
= f_freeme
;
1232 rc
->bp
.p
= MP_COPY(bp
.p
);
1233 rc
->bp
.q
= MP_COPY(bp
.q
);
1234 rc
->bp
.n
= MP_COPY(bp
.n
);
1236 mp_drop(bp
.p
); mp_drop(bp
.q
); mp_drop(bp
.n
); mp_drop(x
);
1237 return ((PyObject
*)rc
);
1240 static void bbspriv_pydealloc(PyObject
*me
)
1242 bbs_priv
*bp
= BBSPRIV_BP(me
);
1246 grand_pydealloc(me
);
1249 static PyObject
*bpmeth_ff(PyObject
*me
, PyObject
*arg
)
1251 mp
*n
= 0; grand
*r
= GRAND_R(me
); bbs_priv
*bp
= BBSPRIV_BP(me
);
1252 if (!PyArg_ParseTuple(arg
, "O&:ff", convmp
, &n
)) return (0);
1253 r
->ops
->misc(r
, BBS_FF
, bp
, n
); RETURN_ME
;
1256 static PyObject
*bpmeth_rew(PyObject
*me
, PyObject
*arg
)
1258 mp
*n
= 0; grand
*r
= GRAND_R(me
); bbs_priv
*bp
= BBSPRIV_BP(me
);
1259 if (!PyArg_ParseTuple(arg
, "O&:rew", convmp
, &n
)) return (0);
1260 r
->ops
->misc(r
, BBS_REW
, bp
, n
); RETURN_ME
;
1263 static PyObject
*bpget_n(PyObject
*me
, void *hunoz
)
1264 { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me
)->n
))); }
1266 static PyObject
*bpget_p(PyObject
*me
, void *hunoz
)
1267 { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me
)->p
))); }
1269 static PyObject
*bpget_q(PyObject
*me
, void *hunoz
)
1270 { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me
)->q
))); }
1272 static PyMethodDef bbspriv_pymethods
[] = {
1273 #define METHNAME(name) bpmeth_##name
1274 METH (ff
, "R.ff(N): fast-forward N places")
1275 METH (rew
, "R.rew(N): rewind N places")
1280 static PyGetSetDef bbspriv_pygetset
[] = {
1281 #define GETSETNAME(op, name) bp##op##_##name
1282 GET (n
, "R.n -> Blum modulus")
1283 GET (p
, "R.p -> one of the factors of the modulus")
1284 GET (q
, "R.q -> one of the factors of the modulus")
1289 static PyTypeObject bbspriv_pytype_skel
= {
1290 PyObject_HEAD_INIT(0) 0, /* Header */
1291 "catacomb.BBSPriv", /* @tp_name@ */
1292 sizeof(bbspriv_pyobj
), /* @tp_basicsize@ */
1293 0, /* @tp_itemsize@ */
1295 bbspriv_pydealloc
, /* @tp_dealloc@ */
1297 0, /* @tp_getattr@ */
1298 0, /* @tp_setattr@ */
1299 0, /* @tp_compare@ */
1301 0, /* @tp_as_number@ */
1302 0, /* @tp_as_sequence@ */
1303 0, /* @tp_as_mapping@ */
1307 0, /* @tp_getattro@ */
1308 0, /* @tp_setattro@ */
1309 0, /* @tp_as_buffer@ */
1310 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
1311 Py_TPFLAGS_BASETYPE
,
1314 "Blum-Blum-Shub strong pseudorandom generator, with private key.",
1316 0, /* @tp_traverse@ */
1318 0, /* @tp_richcompare@ */
1319 0, /* @tp_weaklistoffset@ */
1321 0, /* @tp_iternext@ */
1322 bbspriv_pymethods
, /* @tp_methods@ */
1323 0, /* @tp_members@ */
1324 bbspriv_pygetset
, /* @tp_getset@ */
1327 0, /* @tp_descr_get@ */
1328 0, /* @tp_descr_set@ */
1329 0, /* @tp_dictoffset@ */
1331 PyType_GenericAlloc
, /* @tp_alloc@ */
1332 bbspriv_pynew
, /* @tp_new@ */
1337 /*----- Global stuff ------------------------------------------------------*/
1339 static PyMethodDef methods
[] = {
1340 #define METHNAME(name) meth_##name
1341 KWMETH(_BBSPriv_generate
, "\
1342 generate(NBITS, [event = pgen_nullev, rng = rand, nsteps = 0, seed = 2])")
1347 void rand_pyinit(void)
1349 INITTYPE(grand
, root
);
1350 INITTYPE(truerand
, grand
);
1351 INITTYPE(fibrand
, grand
);
1352 INITTYPE(lcrand
, grand
);
1353 INITTYPE(dsarand
, grand
);
1354 INITTYPE(bbs
, grand
);
1355 INITTYPE(bbspriv
, bbs
);
1356 INITTYPE(sslprf
, grand
);
1357 INITTYPE(tlsdx
, grand
);
1358 INITTYPE(tlsprf
, grand
);
1359 INITTYPE(gccrand
, type
);
1360 INITTYPE(gcrand
, grand
);
1361 rand_noisesrc(RAND_GLOBAL
, &noise_source
);
1362 rand_seed(RAND_GLOBAL
, 160);
1363 addmethods(methods
);
1366 #define gccrand gccrand_info
1367 GEN(gccrands
, crand
)
1369 void rand_pyinsert(PyObject
*mod
)
1371 INSERT("GRand", grand_pytype
);
1372 INSERT("TrueRand", truerand_pytype
);
1373 INSERT("LCRand", lcrand_pytype
);
1374 INSERT("FibRand", fibrand_pytype
);
1375 INSERT("SSLRand", sslprf_pytype
);
1376 INSERT("TLSDataExpansion", tlsdx_pytype
);
1377 INSERT("TLSPRF", tlsprf_pytype
);
1378 INSERT("DSARand", dsarand_pytype
);
1379 INSERT("BlumBlumShub", bbs_pytype
);
1380 INSERT("BBSPriv", bbspriv_pytype
);
1381 INSERT("GCCRand", gccrand_pytype
);
1382 INSERT("GCRand", gcrand_pytype
);
1383 rand_pyobj
= grand_pywrap(&rand_global
, 0); Py_INCREF(rand_pyobj
);
1384 gccrands_dict
= gccrands(); Py_INCREF(gccrands_dict
);
1385 INSERT("gccrands", gccrands_dict
);
1386 INSERT("rand", rand_pyobj
);
1389 /*----- That's all, folks -------------------------------------------------*/