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catacomb/__init__.py: Fix up cipher etc. names better.
[catacomb-python] / group.c
CommitLineData
d7ab1bab 1/* -*-c-*-
d7ab1bab 2 *
3 * Abstract group inteface
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"
30
31/*----- DH and binary group infos -----------------------------------------*/
32
33PyObject *fginfo_pywrap(gprime_param *dp, PyTypeObject *ty)
34{
35 fginfo_pyobj *z = PyObject_New(fginfo_pyobj, ty);
2a28a112 36 z->dp = *dp;
d7ab1bab 37 return ((PyObject *)z);
38}
39
40static PyObject *fginfo_pynew(PyTypeObject *ty,
41 PyObject *arg, PyObject *kw)
42{
43 char *kwlist[] = { "p", "r", "g", 0 };
44 gprime_param dp = { 0 };
45 fginfo_pyobj *z = 0;
46
47 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&O&O&:new", kwlist,
48 convmp, &dp.p,
49 convmp, &dp.q,
5f959e50 50 convmp, &dp.g))
d7ab1bab 51 goto end;
52 z = PyObject_New(fginfo_pyobj, ty);
53 z->dp = dp;
54 return ((PyObject *)z);
55end:
56 mp_drop(dp.p);
57 mp_drop(dp.q);
58 mp_drop(dp.g);
59 return (0);
60}
61
62static PyObject *figet_r(PyObject *me, void *hunoz)
2a28a112 63 { return mp_pywrap(MP_COPY(FGINFO_DP(me)->q)); }
d7ab1bab 64
65static PyObject *diget_p(PyObject *me, void *hunoz)
2a28a112 66 { return mp_pywrap(MP_COPY(FGINFO_DP(me)->p)); }
d7ab1bab 67
68static PyObject *diget_g(PyObject *me, void *hunoz)
2a28a112 69 { return mp_pywrap(MP_COPY(FGINFO_DP(me)->g)); }
d7ab1bab 70
71static PyObject *biget_p(PyObject *me, void *hunoz)
2a28a112 72 { return gf_pywrap(MP_COPY(FGINFO_DP(me)->p)); }
d7ab1bab 73
74static PyObject *biget_m(PyObject *me, void *hunoz)
75 { return PyInt_FromLong(mp_octets(FGINFO_DP(me)->p) - 1); }
76
77static PyObject *biget_g(PyObject *me, void *hunoz)
2a28a112 78 { return gf_pywrap(MP_COPY(FGINFO_DP(me)->g)); }
d7ab1bab 79
80static void fginfo_pydealloc(PyObject *me)
81{
82 mp_drop(FGINFO_DP(me)->p);
83 mp_drop(FGINFO_DP(me)->q);
84 mp_drop(FGINFO_DP(me)->g);
3aa33042 85 FREEOBJ(me);
d7ab1bab 86}
87
88static PyObject *meth__DHInfo_generate(PyObject *me,
89 PyObject *arg, PyObject *kw)
90{
91 dh_param dp;
92 unsigned ql = 0, pl;
93 unsigned steps = 0;
94 grand *r = &rand_global;
95 pgev evt = { 0 };
96 char *kwlist[] =
97 { "class", "pbits", "qbits", "event", "rng", "nsteps", 0 };
98 PyObject *rc = 0;
99
100 if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO&|O&O&O&O&:generate", kwlist,
101 &me, convuint, &pl, convuint, &ql,
102 convpgev, &evt, convgrand, &r,
103 convuint, &steps))
104 goto end;
105 if (dh_gen(&dp, ql, pl, steps, r, evt.proc, evt.ctx))
106 PGENERR;
107 rc = fginfo_pywrap(&dp, dhinfo_pytype);
108end:
109 droppgev(&evt);
110 return (rc);
111}
112
113static PyObject *meth__DHInfo_genlimlee(PyObject *me,
114 PyObject *arg, PyObject *kw)
115{
116 dh_param dp;
117 unsigned ql, pl;
118 unsigned steps = 0;
119 grand *r = &rand_global;
120 pgev oe = { 0 }, ie = { 0 };
121 int subgroupp = 1;
122 unsigned f = 0;
123 char *kwlist[] = { "class", "pbits", "qbits", "event", "ievent",
124 "rng", "nsteps", "subgroupp", 0 };
125 size_t i, nf;
126 mp **v = 0;
127 PyObject *rc = 0, *vec = 0;
128
129 if (!PyArg_ParseTupleAndKeywords(arg, kw,
130 "OO&O&|O&O&O&O&O&:genlimlee", kwlist,
131 &me, convuint, &pl, convuint, &ql,
132 convpgev, &oe, convpgev, &ie,
133 convgrand, &r, convuint, &steps,
134 convbool, &subgroupp))
135 goto end;
136 if (subgroupp) f |= DH_SUBGROUP;
137 if (dh_limlee(&dp, ql, pl, f, steps, r,
138 oe.proc, oe.ctx, ie.proc, ie.ctx, &nf, &v))
139 PGENERR;
140 vec = PyList_New(nf);
141 for (i = 0; i < nf; i++)
142 PyList_SetItem(vec, i, mp_pywrap(v[i]));
143 xfree(v);
144 rc = Py_BuildValue("(NN)", fginfo_pywrap(&dp, dhinfo_pytype), vec);
145end:
146 droppgev(&oe); droppgev(&ie);
147 return (rc);
148}
149
2a28a112
MW		 150static PyObject *meth__DHInfo_genkcdsa(PyObject *me,
151 PyObject *arg, PyObject *kw)
152{
153 dh_param dp;
154 unsigned ql, pl;
155 unsigned steps = 0;
156 grand *r = &rand_global;
157 pgev evt = { 0 };
158 char *kwlist[] = { "class", "pbits", "qbits",
159 "event", "rng", "nsteps", 0 };
160 mp *v = MP_NEW;
161 PyObject *rc = 0;
162
163 if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO&O&|O&O&O&:genkcdsa", kwlist,
164 &me, convuint, &pl, convuint, &ql,
165 convpgev, &evt, convgrand, &r,
166 convuint, &steps))
167 goto end;
168 if (dh_kcdsagen(&dp, ql, pl, 0, steps, r, evt.proc, evt.ctx))
169 PGENERR;
170 mp_div(&v, 0, dp.p, dp.q);
171 v = mp_lsr(v, v, 1);
172 rc = Py_BuildValue("(NN)", fginfo_pywrap(&dp, dhinfo_pytype),
173 mp_pywrap(v));
174end:
175 droppgev(&evt);
176 return (rc);
177}
178
d7ab1bab 179static PyObject *meth__DHInfo_gendsa(PyObject *me,
180 PyObject *arg, PyObject *kw)
181{
182 dsa_param dp;
183 unsigned ql, pl;
184 unsigned steps = 0;
185 dsa_seed ds;
186 char *k;
187 int ksz;
188 pgev evt = { 0 };
189 char *kwlist[] =
190 { "class", "pbits", "qbits", "seed", "event", "nsteps", 0 };
191 PyObject *rc = 0;
192
f368b46e 193 if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO&O&s#|O&O&:gendsa", kwlist,
d7ab1bab 194 &me, convuint, &pl, convuint, &ql,
195 &k, &ksz, convpgev, &evt,
196 convuint, &steps))
197 goto end;
198 if (dsa_gen(&dp, ql, pl, steps, k, ksz, &ds, evt.proc, evt.ctx))
199 PGENERR;
200 rc = Py_BuildValue("(NNl)", fginfo_pywrap(&dp, dhinfo_pytype),
201 bytestring_pywrap(ds.p, ds.sz), (long)ds.count);
202 xfree(ds.p);
203end:
204 droppgev(&evt);
205 return (rc);
206}
207
208static int npgroups = -1, nbingroups = -1;
209
210static PyObject *namedgroups(const pentry *pp, int *ne)
211{
212 int i, j;
213 const char *p;
214 PyObject *d, *c;
215
216 d = PyDict_New();
217 for (i = 0; pp[i].name; i++) {
218 p = pp[i].name;
219 for (j = 0; j < i; j++) {
220 if (pp[i].data == pp[j].data) {
221 c = PyDict_GetItemString(d, (/*unconst*/ char *)pp[j].name);
222 Py_INCREF(c);
223 goto found;
224 }
225 }
226 c = PyInt_FromLong(i);
227 found:
98963817 228 PyDict_SetItemString(d, (/*unconst*/ char *)p, c);
d7ab1bab 229 Py_DECREF(c);
230 }
231 *ne = i;
b2687a0a 232 return (d);
d7ab1bab 233}
234
235static PyObject *meth__groupn(PyObject *me, PyObject *arg,
236 PyTypeObject *ty, const pentry *pp, int ne)
237{
238 int i;
239 gprime_param gp;
240 PyObject *rc = 0;
241
242 if (!PyArg_ParseTuple(arg, "Oi:_groupn", &me, &i)) goto end;
243 if (i < 0 || i >= ne) VALERR("group index out of range");
244 dh_infofromdata(&gp, pp[i].data);
245 rc = fginfo_pywrap(&gp, ty);
246end:
247 return (rc);
248}
249
250static PyObject *meth__DHInfo__groupn(PyObject *me, PyObject *arg)
251 { return (meth__groupn(me, arg, dhinfo_pytype, ptab, npgroups)); }
252
253static PyObject *meth__BinDHInfo__groupn(PyObject *me, PyObject *arg)
254 { return (meth__groupn(me, arg, bindhinfo_pytype, bintab, nbingroups)); }
255
256static PyObject *meth__parse(PyObject *me, PyObject *arg, PyTypeObject *ty,
257 int (*parse)(qd_parse *, gprime_param *))
258{
259 qd_parse qd;
260 char *p;
261 gprime_param gp;
262 PyObject *rc = 0;
263
264 if (!PyArg_ParseTuple(arg, "Os:parse", &me, &p)) goto end;
265 qd.p = p;
266 qd.e = 0;
80f7cd89 267 if (parse(&qd, &gp)) VALERR(qd.e);
d7ab1bab 268 rc = fginfo_pywrap(&gp, ty);
269end:
b2687a0a 270 return (rc);
d7ab1bab 271}
272
273static PyObject *meth__DHInfo_parse(PyObject *me, PyObject *arg)
274 { return (meth__parse(me, arg, dhinfo_pytype, dh_parse)); }
275
276static PyObject *meth__BinDHInfo_parse(PyObject *me, PyObject *arg)
277 { return (meth__parse(me, arg, bindhinfo_pytype, dhbin_parse)); }
278
279static PyGetSetDef fginfo_pygetset[] = {
280#define GETSETNAME(op, name) fi##op##_##name
281 GET (r, "I.r -> group order")
282#undef GETSETNAME
283 { 0 }
284};
285
286static PyGetSetDef dhinfo_pygetset[] = {
287#define GETSETNAME(op, name) di##op##_##name
288 GET (p, "I.p -> prime")
289 GET (g, "I.g -> generator")
290#undef GETSETNAME
291 { 0 }
292};
293
294static PyGetSetDef bindhinfo_pygetset[] = {
295#define GETSETNAME(op, name) bi##op##_##name
296 GET (p, "I.p -> irreducible polynomial")
297 GET (m, "I.m -> degree of polynomial")
298 GET (g, "I.g -> generator")
299#undef GETSETNAME
300 { 0 }
301};
302
303static PyTypeObject fginfo_pytype_skel = {
6d4db0bf 304 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 305 "FGInfo", /* @tp_name@ */
d7ab1bab 306 sizeof(fginfo_pyobj), /* @tp_basicsize@ */
307 0, /* @tp_itemsize@ */
308
309 fginfo_pydealloc, /* @tp_dealloc@ */
310 0, /* @tp_print@ */
311 0, /* @tp_getattr@ */
312 0, /* @tp_setattr@ */
313 0, /* @tp_compare@ */
314 0, /* @tp_repr@ */
315 0, /* @tp_as_number@ */
316 0, /* @tp_as_sequence@ */
317 0, /* @tp_as_mapping@ */
318 0, /* @tp_hash@ */
319 0, /* @tp_call@ */
320 0, /* @tp_str@ */
321 0, /* @tp_getattro@ */
322 0, /* @tp_setattro@ */
323 0, /* @tp_as_buffer@ */
324 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
325 Py_TPFLAGS_BASETYPE,
326
327 /* @tp_doc@ */
328 "Abstract base class for field-group information objects.",
329
330 0, /* @tp_traverse@ */
331 0, /* @tp_clear@ */
332 0, /* @tp_richcompare@ */
333 0, /* @tp_weaklistoffset@ */
334 0, /* @tp_iter@ */
963a6148 335 0, /* @tp_iternext@ */
d7ab1bab 336 0, /* @tp_methods@ */
337 0, /* @tp_members@ */
338 fginfo_pygetset, /* @tp_getset@ */
339 0, /* @tp_base@ */
340 0, /* @tp_dict@ */
341 0, /* @tp_descr_get@ */
342 0, /* @tp_descr_set@ */
343 0, /* @tp_dictoffset@ */
344 0, /* @tp_init@ */
345 PyType_GenericAlloc, /* @tp_alloc@ */
346 abstract_pynew, /* @tp_new@ */
3aa33042 347 0, /* @tp_free@ */
d7ab1bab 348 0 /* @tp_is_gc@ */
349};
350
351static PyTypeObject dhinfo_pytype_skel = {
6d4db0bf 352 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 353 "DHInfo", /* @tp_name@ */
d7ab1bab 354 sizeof(fginfo_pyobj), /* @tp_basicsize@ */
355 0, /* @tp_itemsize@ */
356
357 fginfo_pydealloc, /* @tp_dealloc@ */
358 0, /* @tp_print@ */
359 0, /* @tp_getattr@ */
360 0, /* @tp_setattr@ */
361 0, /* @tp_compare@ */
362 0, /* @tp_repr@ */
363 0, /* @tp_as_number@ */
364 0, /* @tp_as_sequence@ */
365 0, /* @tp_as_mapping@ */
366 0, /* @tp_hash@ */
367 0, /* @tp_call@ */
368 0, /* @tp_str@ */
369 0, /* @tp_getattro@ */
370 0, /* @tp_setattro@ */
371 0, /* @tp_as_buffer@ */
372 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
373 Py_TPFLAGS_BASETYPE,
374
375 /* @tp_doc@ */
376 "Standard (integer) Diffie-Hellman group information.",
377
378 0, /* @tp_traverse@ */
379 0, /* @tp_clear@ */
380 0, /* @tp_richcompare@ */
381 0, /* @tp_weaklistoffset@ */
382 0, /* @tp_iter@ */
963a6148 383 0, /* @tp_iternext@ */
d7ab1bab 384 0, /* @tp_methods@ */
385 0, /* @tp_members@ */
386 dhinfo_pygetset, /* @tp_getset@ */
387 0, /* @tp_base@ */
388 0, /* @tp_dict@ */
389 0, /* @tp_descr_get@ */
390 0, /* @tp_descr_set@ */
391 0, /* @tp_dictoffset@ */
392 0, /* @tp_init@ */
393 PyType_GenericAlloc, /* @tp_alloc@ */
394 fginfo_pynew, /* @tp_new@ */
3aa33042 395 0, /* @tp_free@ */
d7ab1bab 396 0 /* @tp_is_gc@ */
397};
398
399static PyTypeObject bindhinfo_pytype_skel = {
6d4db0bf 400 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 401 "BinDHInfo", /* @tp_name@ */
d7ab1bab 402 sizeof(fginfo_pyobj), /* @tp_basicsize@ */
403 0, /* @tp_itemsize@ */
404
405 fginfo_pydealloc, /* @tp_dealloc@ */
406 0, /* @tp_print@ */
407 0, /* @tp_getattr@ */
408 0, /* @tp_setattr@ */
409 0, /* @tp_compare@ */
410 0, /* @tp_repr@ */
411 0, /* @tp_as_number@ */
412 0, /* @tp_as_sequence@ */
413 0, /* @tp_as_mapping@ */
414 0, /* @tp_hash@ */
415 0, /* @tp_call@ */
416 0, /* @tp_str@ */
417 0, /* @tp_getattro@ */
418 0, /* @tp_setattro@ */
419 0, /* @tp_as_buffer@ */
420 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
421 Py_TPFLAGS_BASETYPE,
422
423 /* @tp_doc@ */
424 "Binary-field Diffie-Hellman group information.",
425
426 0, /* @tp_traverse@ */
427 0, /* @tp_clear@ */
428 0, /* @tp_richcompare@ */
429 0, /* @tp_weaklistoffset@ */
430 0, /* @tp_iter@ */
963a6148 431 0, /* @tp_iternext@ */
d7ab1bab 432 0, /* @tp_methods@ */
433 0, /* @tp_members@ */
434 bindhinfo_pygetset, /* @tp_getset@ */
435 0, /* @tp_base@ */
436 0, /* @tp_dict@ */
437 0, /* @tp_descr_get@ */
438 0, /* @tp_descr_set@ */
439 0, /* @tp_dictoffset@ */
440 0, /* @tp_init@ */
441 PyType_GenericAlloc, /* @tp_alloc@ */
442 fginfo_pynew, /* @tp_new@ */
3aa33042 443 0, /* @tp_free@ */
d7ab1bab 444 0 /* @tp_is_gc@ */
445};
446
447/*----- General utilities -------------------------------------------------*/
448
449PyTypeObject *ge_pytype, *group_pytype;
450PyTypeObject *primegroup_pytype, *bingroup_pytype, *ecgroup_pytype;
451
963e1813
MW		 452#ifdef GROUP_GUTS_MPSTRUCT
453# define GG_GEN(gg) ((gg)->gen.x)
454#else
455# define GG_GEN(gg) ((gg)->gen)
456#endif
457
d7ab1bab 458group *group_copy(group *g)
459{
460 if (strcmp(G_NAME(g), "prime") == 0) {
461 gctx_prime *gc = (gctx_prime *)g;
462 gprime_param gp;
463 gp.g = G_TOINT(g, MP_NEW, g->g);
464 gp.p = gc->mm.m;
465 gp.q = gc->g.r;
466 g = group_prime(&gp);
467 MP_DROP(gp.g);
468 } else if (strcmp(G_NAME(g), "bin") == 0) {
469 gctx_bin *gc = (gctx_bin *)g;
470 gbin_param gb;
471 gb.g = G_TOINT(g, MP_NEW, g->g);
472 gb.p = gc->r.p;
473 gb.q = gc->g.r;
474 g = group_binary(&gb);
b2687a0a 475 MP_DROP(gb.g);
d7ab1bab 476 } else if (strcmp(G_NAME(g), "ec") == 0) {
477 gctx_ec *gc = (gctx_ec *)g;
478 ec_info ei;
479 if ((ei.c = eccurve_copy(gc->ei.c)) == 0)
480 return (0);
481 EC_CREATE(&ei.g);
482 EC_COPY(&ei.g, &gc->ei.g);
483 ei.r = MP_COPY(gc->ei.r);
484 ei.h = MP_COPY(gc->ei.h);
485 g = group_ec(&ei);
486 } else
487 g = 0;
488 return (g);
489}
490
491PyObject *ge_pywrap(PyObject *gobj, ge *x)
492{
493 ge_pyobj *z = PyObject_New(ge_pyobj, (PyTypeObject *)gobj);
494 z->x = x;
495 z->g = GROUP_G(gobj);
496 Py_INCREF(gobj);
497 return ((PyObject *)z);
498}
499
500static PyObject *ge_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
501{
502 char *kwlist[] = { "x", 0 };
503 PyObject *x;
504 group *g;
505 ec p = EC_INIT;
506 mp *y = 0;
507 ge *xx = 0;
508 mptext_stringctx sc;
509
510 g = GROUP_G(ty);
511 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O:new", kwlist, &x)) goto end;
512 xx = G_CREATE(g);
513 if (ECPT_PYCHECK(x)) {
514 getecptout(&p, x);
515 if (G_FROMEC(g, xx, &p))
516 TYERR("can't convert from elliptic curve point");
517 EC_DESTROY(&p);
518 } else if ((y = tomp(x)) != 0) {
519 if (G_FROMINT(g, xx, y))
520 TYERR("can't convert from integer");
521 MP_DROP(y);
522 } else if (PyString_Check(x)) {
523 sc.buf = PyString_AS_STRING(x);
524 sc.lim = sc.buf + PyString_GET_SIZE(x);
525 if (G_READ(g, xx, &mptext_stringops, &sc) || sc.buf < sc.lim)
80f7cd89 526 VALERR("malformed group element string");
d7ab1bab 527 } else
528 TYERR("can't convert to group element");
529 return (ge_pywrap((PyObject *)ty, xx));
530end:
531 mp_drop(y);
532 EC_DESTROY(&p);
533 if (xx) G_DESTROY(g, xx);
534 return (0);
535}
536
537static PyObject *group_dopywrap(PyTypeObject *ty, group *g)
538{
df9f8366 539 group_pyobj *gobj = newtype(ty, 0, g->ops->name);
d7ab1bab 540 gobj->g = g;
24b3d57b
MW		 541 gobj->ty.ht_type.tp_basicsize = sizeof(ge_pyobj);
542 gobj->ty.ht_type.tp_base = ge_pytype;
d7ab1bab 543 Py_INCREF(group_pytype);
24b3d57b
MW		 544 gobj->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT |
545 Py_TPFLAGS_BASETYPE |
546 Py_TPFLAGS_CHECKTYPES |
547 Py_TPFLAGS_HEAPTYPE);
548 gobj->ty.ht_type.tp_alloc = PyType_GenericAlloc;
549 gobj->ty.ht_type.tp_free = 0;
550 gobj->ty.ht_type.tp_new = ge_pynew;
dc075750 551 typeready(&gobj->ty.ht_type);
d7ab1bab 552 return ((PyObject *)gobj);
553}
554
555PyObject *group_pywrap(group *g)
556{
557 PyTypeObject *ty;
558
559 if (strcmp(G_NAME(g), "prime") == 0) ty = primegroup_pytype;
560 else if (strcmp(G_NAME(g), "bin") == 0) ty = bingroup_pytype;
561 else if (strcmp(G_NAME(g), "ec") == 0) ty = ecgroup_pytype;
562 else abort();
563 return (group_dopywrap(ty, g));
564}
565
566/*----- Group elements ----------------------------------------------------*/
567
568#define BINOP(name) \
569 static PyObject *ge_py##name(PyObject *x, PyObject *y) \
570 { \
571 ge *z; \
572 group *g; \
573 if (!GE_PYCHECK(x) || !GE_PYCHECK(y) || \
574 (GE_G(x) != GE_G(y) && !group_samep(GE_G(x), GE_G(y)))) \
575 RETURN_NOTIMPL; \
576 g = GE_G(x); \
577 z = G_CREATE(g); \
578 g->ops->name(g, z, GE_X(x), GE_X(y)); \
579 return (ge_pywrap(GE_GOBJ(x), z)); \
580 }
581BINOP(mul)
582BINOP(div)
583#undef BINOP
584
585#define UNOP(name) \
586 static PyObject *gemeth_##name(PyObject *me, PyObject *arg) \
587 { \
588 group *g; \
589 ge *z; \
590 if (!PyArg_ParseTuple(arg, ":" #name)) return (0); \
591 g = GE_G(me); \
592 z = G_CREATE(g); \
593 g->ops->name(g, z, GE_X(me)); \
594 return (ge_pywrap(GE_GOBJ(me), z)); \
595 }
596UNOP(sqr)
597UNOP(inv)
598#undef UNOP
599
600static PyObject *ge_pyexp(PyObject *x, PyObject *n, PyObject *m)
601{
602 mp *nn;
603 ge *z;
604
605 if (m != Py_None || !GE_PYCHECK(x) || (nn = getmp(n)) == 0)
606 RETURN_NOTIMPL;
607 z = G_CREATE(GE_G(x));
608 G_EXP(GE_G(x), z, GE_X(x), nn);
609 MP_DROP(nn);
610 return (ge_pywrap(GE_GOBJ(x), z));
611}
612
613static void ge_pydealloc(PyObject *me)
614{
615 G_DESTROY(GE_G(me), GE_X(me));
616 Py_DECREF(GE_GOBJ(me));
3aa33042 617 FREEOBJ(me);
d7ab1bab 618}
619
620static void group_pydealloc(PyObject *me)
621{
622 G_DESTROYGROUP(GROUP_G(me));
623 PyType_Type.tp_dealloc(me);
624}
625
626static PyObject *gmexp_id(PyObject *me)
627{
628 group *g = GROUP_G(me); ge *x = G_CREATE(g);
629 G_COPY(g, x, g->i); return (ge_pywrap(me, x));
630}
631
632static int gmexp_fill(void *pp, PyObject *me, PyObject *x, PyObject *m)
633{
634 group_expfactor *f = pp;
635
636 if (!GE_PYCHECK(x) || GE_G(x) != GROUP_G(me) || (f->exp = getmp(m)) == 0)
637 return (-1);
638 f->base = GE_X(x);
639 return (0);
640}
641
642static PyObject *ge_pyrichcompare(PyObject *x, PyObject *y, int op)
643{
644 int b;
645 PyObject *rc = 0;
646
647 if (!GE_PYCHECK(x) || !GE_PYCHECK(y) ||
648 (GE_G(x) != GE_G(y) && !group_samep(GE_G(x), GE_G(y))))
649 RETURN_NOTIMPL;
650 switch (op) {
651 case Py_EQ: b = G_EQ(GE_G(x), GE_X(x), GE_X(y)); break;
652 case Py_NE: b = !G_EQ(GE_G(x), GE_X(x), GE_X(y)); break;
653 default: TYERR("group elements are unordered");
654 }
655 rc = getbool(b);
656end:
657 return (rc);
658}
659
660static PyObject *gemeth_check(PyObject *me, PyObject *arg)
661{
662 if (!PyArg_ParseTuple(arg, ":check")) goto end;
663 if (group_check(GE_G(me), GE_X(me))) VALERR("bad group element");
664 RETURN_OBJ(me);
665end:
666 return (0);
667}
668
669static int ge_pynonzerop(PyObject *x)
670 { return (!G_IDENTP(GE_G(x), GE_X(x))); }
671
672static PyObject *ge_pystr(PyObject *me)
673{
674 dstr d = DSTR_INIT;
675 PyObject *rc;
676
677 group_writedstr(GE_G(me), GE_X(me), &d);
678 rc = PyString_FromStringAndSize(d.buf, d.len);
679 DDESTROY(&d);
680 return (rc);
681}
682
683static PyObject *ge_pylong(PyObject *me)
684{
685 mp *x = 0;
686 PyObject *rc = 0;
687
688 if ((x = G_TOINT(GE_G(me), MP_NEW, GE_X(me))) == 0)
689 TYERR("can't convert to integer");
f368b46e 690 rc = mp_topylong(x);
d7ab1bab 691end:
692 mp_drop(x);
693 return (rc);
694}
695
696static PyObject *ge_pyint(PyObject *me)
697{
698 mp *x = 0;
699 PyObject *rc = 0;
700 long l;
701
702 if ((x = G_TOINT(GE_G(me), MP_NEW, GE_X(me))) == 0)
703 TYERR("can't convert to integer");
5779eaf1
MW		 704 if (!mp_tolong_checked(x, &l, 0)) rc = PyInt_FromLong(l);
705 else rc = mp_topylong(x);
d7ab1bab 706end:
707 mp_drop(x);
708 return (rc);
709}
710
711static PyObject *gemeth_toint(PyObject *me, PyObject *arg)
712{
713 mp *x;
714
715 if (!PyArg_ParseTuple(arg, ":toint")) goto end;
716 if ((x = G_TOINT(GE_G(me), MP_NEW, GE_X(me))) == 0)
717 TYERR("can't convert to integer");
718 return (mp_pywrap(x));
719end:
720 return (0);
721}
722
723static PyObject *gemeth_toec(PyObject *me, PyObject *arg, PyObject *kw)
724{
725 char *kwlist[] = { "curve", 0 };
726 PyTypeObject *cty = ecpt_pytype;
727 ec p = EC_INIT;
728
729 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O:toec", kwlist,
730 &cty)) goto end;
731 if (!PyType_Check(cty) || !PyType_IsSubtype(cty, ecpt_pytype))
732 TYERR("want subtype of catacomb.ECPt");
733 if (G_TOEC(GE_G(me), &p, GE_X(me)))
734 TYERR("can't convert to ec point");
735 return (ecpt_pywrapout(cty, &p));
736end:
737 return (0);
738}
739
740static PyObject *gemeth_tobuf(PyObject *me, PyObject *arg)
741{
742 buf b;
743 PyObject *rc;
744 size_t n;
745
746 if (!PyArg_ParseTuple(arg, ":tobuf")) return (0);
747 n = GE_G(me)->noctets + 4;
748 rc = bytestring_pywrap(0, n);
749 buf_init(&b, PyString_AS_STRING(rc), n);
750 G_TOBUF(GE_G(me), &b, GE_X(me));
751 assert(BOK(&b));
752 _PyString_Resize(&rc, BLEN(&b));
753 return (rc);
754}
755
756static PyObject *gemeth_toraw(PyObject *me, PyObject *arg)
757{
758 buf b;
759 PyObject *rc;
760 size_t n;
761
762 if (!PyArg_ParseTuple(arg, ":toraw")) return (0);
763 n = GE_G(me)->noctets;
764 rc = bytestring_pywrap(0, n);
765 buf_init(&b, PyString_AS_STRING(rc), n);
766 G_TORAW(GE_G(me), &b, GE_X(me));
767 assert(BOK(&b));
768 _PyString_Resize(&rc, BLEN(&b));
769 return (rc);
770}
771
772static PyObject *gmexp_exp(PyObject *me, void *pp, int n)
773{
774 ge *z = G_CREATE(GROUP_G(me));
775 G_MEXP(GROUP_G(me), z, pp, n);
776 return (ge_pywrap(me, z));
777}
778
779static void gmexp_drop(void *pp)
780{
781 group_expfactor *f = pp;
782 MP_DROP(f->exp);
783}
784
785static PyObject *gmeth_mexp(PyObject *me, PyObject *arg)
786{
787 return (mexp_common(me, arg, sizeof(group_expfactor),
788 gmexp_id, gmexp_fill, gmexp_exp, gmexp_drop));
789}
790
00a8b95a 791static PyObject *gmeth_checkgroup(PyObject *me, PyObject *arg, PyObject *kw)
d7ab1bab 792{
793 char *kwlist[] = { "rng", 0 };
794 grand *r = &rand_global;
795 const char *p;
796
00a8b95a 797 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:checkgroup", kwlist,
d7ab1bab 798 convgrand, &r))
799 goto end;
800 if ((p = G_CHECK(GROUP_G(me), r)) != 0)
801 VALERR(p);
802 RETURN_OBJ(me);
803end:
804 return (0);
805}
806
807static PyObject *group_pyrichcompare(PyObject *x, PyObject *y, int op)
808{
809 int b = group_samep(GROUP_G(x), GROUP_G(y));
810 switch (op) {
811 case Py_EQ: break;
812 case Py_NE: b = !b;
813 default: TYERR("can't order groups");
814 }
815 return (getbool(b));
816end:
817 return (0);
818}
819
820static PyObject *meth__GE_frombuf(PyObject *me, PyObject *arg)
821{
822 buf b;
823 char *p;
824 int n;
825 group *g;
826 ge *x = 0;
827
828 if (!PyArg_ParseTuple(arg, "Os#:frombuf", &me, &p, &n))
829 return (0);
830 g = GROUP_G(me);
831 buf_init(&b, p, n);
832 x = G_CREATE(g);
833 if (G_FROMBUF(g, &b, x))
834 VALERR("invalid data");
835 return (Py_BuildValue("(NN)", ge_pywrap(me, x), bytestring_pywrapbuf(&b)));
836end:
837 if (x) G_DESTROY(g, x);
838 return (0);
839}
840
841static PyObject *meth__GE_fromraw(PyObject *me, PyObject *arg)
842{
843 buf b;
844 char *p;
845 int n;
846 group *g;
847 ge *x = 0;
848
849 if (!PyArg_ParseTuple(arg, "Os#:fromraw", &me, &p, &n))
850 return (0);
851 g = GROUP_G(me);
852 buf_init(&b, p, n);
853 x = G_CREATE(g);
854 if (G_FROMRAW(g, &b, x))
855 VALERR("invalid data");
856 return (Py_BuildValue("(NN)", ge_pywrap(me, x), bytestring_pywrapbuf(&b)));
857end:
858 if (x) G_DESTROY(g, x);
859 return (0);
860}
861
862static PyObject *meth__GE_fromstring(PyObject *me, PyObject *arg)
863{
864 mptext_stringctx sc;
865 char *p;
866 int n;
867 group *g;
868 ge *x = 0;
869
870 if (!PyArg_ParseTuple(arg, "Os#:fromstring", &me, &p, &n))
871 return (0);
872 sc.buf = p;
873 sc.lim = sc.buf + n;
874 g = GROUP_G(me);
875 x = G_CREATE(g);
876 if (G_READ(g, x, &mptext_stringops, &sc))
80f7cd89 877 VALERR("bad group element string");
d7ab1bab 878 return (Py_BuildValue("(Ns#)", ge_pywrap(me, x),
879 sc.buf, (int)(sc.lim - sc.buf)));
880end:
881 if (x) G_DESTROY(g, x);
882 return (0);
883}
884
885static PyObject *meth__Group_parse(PyObject *me, PyObject *arg)
886{
887 char *p;
888 qd_parse qd;
889 group *g;
890
891 if (!PyArg_ParseTuple(arg, "Os:parse", &me, &p))
892 goto end;
893 qd.p = p;
894 qd.e = 0;
895 if ((g = group_parse(&qd)) == 0)
80f7cd89 896 VALERR(qd.e);
d7ab1bab 897 return (group_pywrap(g));
898end:
899 return (0);
900}
901
902static PyObject *geget_group(PyObject *me, void *hunoz)
903 { RETURN_OBJ(GE_GOBJ(me)); }
904
905static PyObject *gget_nbits(PyObject *me, void *hunoz)
906 { return (PyInt_FromLong(GROUP_G(me)->nbits)); }
907
908static PyObject *gget_noctets(PyObject *me, void *hunoz)
909 { return (PyInt_FromLong(GROUP_G(me)->noctets)); }
910
911static PyObject *gget_i(PyObject *me, void *hunoz)
912{
913 group *g = GROUP_G(me); ge *x = G_CREATE(g);
914 G_COPY(g, x, g->i); return (ge_pywrap(me, x));
915}
916
917static PyObject *gget_g(PyObject *me, void *hunoz)
918{
919 group *g = GROUP_G(me); ge *x = G_CREATE(g);
920 G_COPY(g, x, g->g); return (ge_pywrap(me, x));
921}
922
6d481bc6
MW		 923static long ge_pyhash(PyObject *me)
924{
925 buf b;
926 size_t sz = GE_G(me)->noctets + 4;
927 uint32 h = 0xf672c776 + GE_G(me)->ops->ty;
928 octet *p = xmalloc(sz);
929 buf_init(&b, p, sz);
930 G_TOBUF(GE_G(me), &b, GE_X(me));
931 assert(BOK(&b));
932 h = unihash_hash(&unihash_global, h, BBASE(&b), BLEN(&b));
933 xfree(p);
934 return (h % LONG_MAX);
935}
936
d7ab1bab 937static PyObject *gget_r(PyObject *me, void *hunoz)
938 { return (mp_pywrap(MP_COPY(GROUP_G(me)->r))); }
939
940static PyObject *gget_h(PyObject *me, void *hunoz)
941 { return (mp_pywrap(MP_COPY(GROUP_G(me)->h))); }
942
943static PyGetSetDef ge_pygetset[] = {
944#define GETSETNAME(op, name) ge##op##_##name
945 GET (group, "X.group -> group containing X")
946#undef GETSETNAME
947 { 0 }
948};
949
950static PyMethodDef ge_pymethods[] = {
951#define METHNAME(name) gemeth_##name
952 METH (inv, "X.inv() -> inverse element of X")
953 METH (sqr, "X.sqr() -> X^2 = X * X")
954 METH (check, "X.check() -> check X really belongs to its group")
955 METH (toint, "X.toint() -> X converted to an integer")
956 KWMETH(toec, "\
957X.toec(curve = ecpt) -> X converted to elliptic curve point")
958 METH (tobuf, "X.tobuf() -> X in buffer representation")
959 METH (toraw, "X.toraw() -> X in raw representation")
960#undef METHNAME
961 { 0 }
962};
963
964static PyNumberMethods ge_pynumber = {
965 0, /* @nb_add@ */
966 0, /* @nb_subtract@ */
967 ge_pymul, /* @nb_multiply@ */
968 ge_pydiv, /* @nb_divide@ */
969 0, /* @nb_remainder@ */
970 0, /* @nb_divmod@ */
971 ge_pyexp, /* @nb_power@ */
972 0, /* @nb_negative@ */
973 0, /* @nb_positive@ */
974 0, /* @nb_absolute@ */
975 ge_pynonzerop, /* @nb_nonzero@ */
976 0, /* @nb_invert@ */
977 0, /* @nb_lshift@ */
978 0, /* @nb_rshift@ */
979 0, /* @nb_and@ */
980 0, /* @nb_xor@ */
981 0, /* @nb_or@ */
982 0, /* @nb_coerce@ */
983 ge_pyint, /* @nb_int@ */
984 ge_pylong, /* @nb_long@ */
985 0 /* meaningless */, /* @nb_float@ */
986 0, /* @nb_oct@ */
987 0, /* @nb_hex@ */
988
989 0, /* @nb_inplace_add@ */
990 0, /* @nb_inplace_subtract@ */
991 0, /* @nb_inplace_multiply@ */
992 0, /* @nb_inplace_divide@ */
993 0, /* @nb_inplace_remainder@ */
994 0, /* @nb_inplace_power@ */
995 0, /* @nb_inplace_lshift@ */
996 0, /* @nb_inplace_rshift@ */
997 0, /* @nb_inplace_and@ */
998 0, /* @nb_inplace_xor@ */
999 0, /* @nb_inplace_or@ */
1000
1001 0, /* @nb_floor_divide@ */
1002 ge_pydiv, /* @nb_true_divide@ */
1003 0, /* @nb_inplace_floor_divide@ */
1004 0, /* @nb_inplace_true_divide@ */
1005};
1006
1007static PyTypeObject ge_pytype_skel = {
6d4db0bf 1008 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1009 "GE", /* @tp_name@ */
d7ab1bab 1010 sizeof(ge_pyobj), /* @tp_basicsize@ */
1011 0, /* @tp_itemsize@ */
1012
1013 ge_pydealloc, /* @tp_dealloc@ */
1014 0, /* @tp_print@ */
1015 0, /* @tp_getattr@ */
1016 0, /* @tp_setattr@ */
1017 0, /* @tp_compare@ */
1018 0, /* @tp_repr@ */
1019 &ge_pynumber, /* @tp_as_number@ */
1020 0, /* @tp_as_sequence@ */
1021 0, /* @tp_as_mapping@ */
6d481bc6 1022 ge_pyhash, /* @tp_hash@ */
d7ab1bab 1023 0, /* @tp_call@ */
1024 ge_pystr, /* @tp_str@ */
1025 0, /* @tp_getattro@ */
1026 0, /* @tp_setattro@ */
1027 0, /* @tp_as_buffer@ */
1028 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1029 Py_TPFLAGS_CHECKTYPES |
1030 Py_TPFLAGS_BASETYPE,
1031
1032 /* @tp_doc@ */
1033"Group elements, abstract base class.",
1034
1035 0, /* @tp_traverse@ */
1036 0, /* @tp_clear@ */
1037 ge_pyrichcompare, /* @tp_richcompare@ */
1038 0, /* @tp_weaklistoffset@ */
1039 0, /* @tp_iter@ */
963a6148 1040 0, /* @tp_iternext@ */
d7ab1bab 1041 ge_pymethods, /* @tp_methods@ */
1042 0, /* @tp_members@ */
1043 ge_pygetset, /* @tp_getset@ */
1044 0, /* @tp_base@ */
1045 0, /* @tp_dict@ */
1046 0, /* @tp_descr_get@ */
1047 0, /* @tp_descr_set@ */
1048 0, /* @tp_dictoffset@ */
1049 0, /* @tp_init@ */
1050 PyType_GenericAlloc, /* @tp_alloc@ */
1051 abstract_pynew, /* @tp_new@ */
3aa33042 1052 0, /* @tp_free@ */
d7ab1bab 1053 0 /* @tp_is_gc@ */
1054};
1055
1056static PyGetSetDef group_pygetset[] = {
1057#define GETSETNAME(op, name) g##op##_##name
1058 GET (noctets, "G.noctets -> size in octets of element")
1059 GET (nbits, "G.nbits -> size in bits of element")
1060 GET (i, "G.i -> group identity")
1061 GET (g, "G.g -> group generator")
1062 GET (r, "G.r -> group order")
1063 GET (h, "G.h -> group cofactor")
1064#undef GETSETNAME
1065 { 0 }
1066};
1067
1068static PyMethodDef group_pymethods[] = {
1069#define METHNAME(name) gmeth_##name
1070 METH (mexp, "\
1071G.mexp([(X0, N0), (X1, N1), ...]) -> X0^N0 X1^N1 ...")
00a8b95a 1072 KWMETH(checkgroup, "G.checkgroup(rand = random): check group is good")
d7ab1bab 1073#undef METHNAME
1074 { 0 }
1075};
1076
1077static PyTypeObject group_pytype_skel = {
6d4db0bf 1078 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1079 "Group", /* @tp_name@ */
d7ab1bab 1080 sizeof(group_pyobj), /* @tp_basicsize@ */
1081 0, /* @tp_itemsize@ */
1082
1083 group_pydealloc, /* @tp_dealloc@ */
1084 0, /* @tp_print@ */
1085 0, /* @tp_getattr@ */
1086 0, /* @tp_setattr@ */
1087 0, /* @tp_compare@ */
1088 0, /* @tp_repr@ */
1089 0, /* @tp_as_number@ */
1090 0, /* @tp_as_sequence@ */
1091 0, /* @tp_as_mapping@ */
1092 0, /* @tp_hash@ */
1093 0, /* @tp_call@ */
1094 0, /* @tp_str@ */
1095 0, /* @tp_getattro@ */
1096 0, /* @tp_setattro@ */
1097 0, /* @tp_as_buffer@ */
1098 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1099 Py_TPFLAGS_BASETYPE,
1100
1101 /* @tp_doc@ */
1102"Abstract base class for groups.",
1103
1104 0, /* @tp_traverse@ */
1105 0, /* @tp_clear@ */
1106 group_pyrichcompare, /* @tp_richcompare@ */
1107 0, /* @tp_weaklistoffset@ */
1108 0, /* @tp_iter@ */
963a6148 1109 0, /* @tp_iternext@ */
d7ab1bab 1110 group_pymethods, /* @tp_methods@ */
1111 0, /* @tp_members@ */
1112 group_pygetset, /* @tp_getset@ */
1113 0, /* @tp_base@ */
1114 0, /* @tp_dict@ */
1115 0, /* @tp_descr_get@ */
1116 0, /* @tp_descr_set@ */
1117 0, /* @tp_dictoffset@ */
1118 0, /* @tp_init@ */
1119 PyType_GenericAlloc, /* @tp_alloc@ */
1120 abstract_pynew, /* @tp_new@ */
3aa33042 1121 0, /* @tp_free@ */
d7ab1bab 1122 0 /* @tp_is_gc@ */
1123};
1124
1125static PyObject *pgget_info(PyObject *me, void *hunoz)
1126{
1127 gprime_param dp;
1128 gctx_prime *gg = (gctx_prime *)GROUP_G(me);
1129 dp.p = MP_COPY(gg->mm.m);
1130 dp.q = MP_COPY(gg->g.r);
963e1813 1131 dp.g = mpmont_reduce(&gg->mm, MP_NEW, GG_GEN(gg));
d7ab1bab 1132 return (fginfo_pywrap(&dp, dhinfo_pytype));
1133}
1134
1135static PyGetSetDef primegroup_pygetset[] = {
1136#define GETSETNAME(op, name) pg##op##_##name
1137 GET (info, "G.info -> information about the group")
1138#undef GETSETNAME
1139 { 0 }
1140};
1141
1142static PyObject *primegroup_pynew(PyTypeObject *ty,
1143 PyObject *arg, PyObject *kw)
1144{
1145 PyObject *i;
1146 char *kwlist[] = { "info", 0 };
1147
1148 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O!:new", kwlist,
1149 dhinfo_pytype, &i))
1150 return (0);
1151 return (group_dopywrap(ty, group_prime(FGINFO_DP(i))));
1152}
1153
1154static PyTypeObject primegroup_pytype_skel = {
6d4db0bf 1155 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1156 "PrimeGroup", /* @tp_name@ */
d7ab1bab 1157 sizeof(group_pyobj), /* @tp_basicsize@ */
1158 0, /* @tp_itemsize@ */
1159
1160 group_pydealloc, /* @tp_dealloc@ */
1161 0, /* @tp_print@ */
1162 0, /* @tp_getattr@ */
1163 0, /* @tp_setattr@ */
1164 0, /* @tp_compare@ */
1165 0, /* @tp_repr@ */
1166 0, /* @tp_as_number@ */
1167 0, /* @tp_as_sequence@ */
1168 0, /* @tp_as_mapping@ */
1169 0, /* @tp_hash@ */
1170 0, /* @tp_call@ */
1171 0, /* @tp_str@ */
1172 0, /* @tp_getattro@ */
1173 0, /* @tp_setattro@ */
1174 0, /* @tp_as_buffer@ */
1175 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1176 Py_TPFLAGS_BASETYPE,
1177
1178 /* @tp_doc@ */
1179"Subgroups of prime fields.",
1180
1181 0, /* @tp_traverse@ */
1182 0, /* @tp_clear@ */
1183 0, /* @tp_richcompare@ */
1184 0, /* @tp_weaklistoffset@ */
1185 0, /* @tp_iter@ */
963a6148 1186 0, /* @tp_iternext@ */
d7ab1bab 1187 0, /* @tp_methods@ */
1188 0, /* @tp_members@ */
1189 primegroup_pygetset, /* @tp_getset@ */
1190 0, /* @tp_base@ */
1191 0, /* @tp_dict@ */
1192 0, /* @tp_descr_get@ */
1193 0, /* @tp_descr_set@ */
1194 0, /* @tp_dictoffset@ */
1195 0, /* @tp_init@ */
1196 PyType_GenericAlloc, /* @tp_alloc@ */
1197 primegroup_pynew, /* @tp_new@ */
3aa33042 1198 0, /* @tp_free@ */
d7ab1bab 1199 0 /* @tp_is_gc@ */
1200};
1201
1202static PyObject *bgget_info(PyObject *me, void *hunoz)
1203{
1204 gbin_param dp;
1205 gctx_bin *gg = (gctx_bin *)GROUP_G(me);
1206 dp.p = MP_COPY(gg->r.p);
1207 dp.q = MP_COPY(gg->g.r);
963e1813 1208 dp.g = MP_COPY(GG_GEN(gg));
d7ab1bab 1209 return (fginfo_pywrap(&dp, bindhinfo_pytype));
1210}
1211
1212static PyGetSetDef bingroup_pygetset[] = {
1213#define GETSETNAME(op, name) bg##op##_##name
1214 GET (info, "G.info -> information about the group")
1215#undef GETSETNAME
1216 { 0 }
1217};
1218
1219static PyObject *bingroup_pynew(PyTypeObject *ty,
1220 PyObject *arg, PyObject *kw)
1221{
1222 PyObject *i;
1223 char *kwlist[] = { "info", 0 };
1224
1225 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O!:new", kwlist,
1226 bindhinfo_pytype, &i))
1227 return (0);
1228 return (group_dopywrap(ty, group_binary(FGINFO_DP(i))));
1229}
1230
1231static PyTypeObject bingroup_pytype_skel = {
6d4db0bf 1232 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1233 "BinGroup", /* @tp_name@ */
d7ab1bab 1234 sizeof(group_pyobj), /* @tp_basicsize@ */
1235 0, /* @tp_itemsize@ */
1236
1237 group_pydealloc, /* @tp_dealloc@ */
1238 0, /* @tp_print@ */
1239 0, /* @tp_getattr@ */
1240 0, /* @tp_setattr@ */
1241 0, /* @tp_compare@ */
1242 0, /* @tp_repr@ */
1243 0, /* @tp_as_number@ */
1244 0, /* @tp_as_sequence@ */
1245 0, /* @tp_as_mapping@ */
1246 0, /* @tp_hash@ */
1247 0, /* @tp_call@ */
1248 0, /* @tp_str@ */
1249 0, /* @tp_getattro@ */
1250 0, /* @tp_setattro@ */
1251 0, /* @tp_as_buffer@ */
1252 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1253 Py_TPFLAGS_BASETYPE,
1254
1255 /* @tp_doc@ */
1256"Subgroups of binary fields.",
1257
1258 0, /* @tp_traverse@ */
1259 0, /* @tp_clear@ */
1260 0, /* @tp_richcompare@ */
1261 0, /* @tp_weaklistoffset@ */
1262 0, /* @tp_iter@ */
963a6148 1263 0, /* @tp_iternext@ */
d7ab1bab 1264 0, /* @tp_methods@ */
1265 0, /* @tp_members@ */
1266 bingroup_pygetset, /* @tp_getset@ */
1267 0, /* @tp_base@ */
1268 0, /* @tp_dict@ */
1269 0, /* @tp_descr_get@ */
1270 0, /* @tp_descr_set@ */
1271 0, /* @tp_dictoffset@ */
1272 0, /* @tp_init@ */
1273 PyType_GenericAlloc, /* @tp_alloc@ */
1274 bingroup_pynew, /* @tp_new@ */
3aa33042 1275 0, /* @tp_free@ */
d7ab1bab 1276 0 /* @tp_is_gc@ */
1277};
1278
1279static PyObject *egget_info(PyObject *me, void *hunoz)
1280{
1281 ec_info ei;
1282 gctx_ec *gg = (gctx_ec *)GROUP_G(me);
1283
1284 ecinfo_copy(&ei, &gg->ei);
1285 return (ecinfo_pywrap(&ei));
1286}
1287
1288static PyGetSetDef ecgroup_pygetset[] = {
1289#define GETSETNAME(op, name) eg##op##_##name
1290 GET (info, "G.info -> information about the group")
1291#undef GETSETNAME
1292 { 0 }
1293};
1294
1295static PyObject *ecgroup_pynew(PyTypeObject *ty,
1296 PyObject *arg, PyObject *kw)
1297{
1298 PyObject *i;
1299 ec_info ei;
1300 char *kwlist[] = { "info", 0 };
1301
1302 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O!:new", kwlist,
1303 ecinfo_pytype, &i))
1304 return (0);
1305 ecinfo_copy(&ei, ECINFO_EI(i));
1306 return (group_dopywrap(ty, group_ec(&ei)));
1307}
1308
1309static PyTypeObject ecgroup_pytype_skel = {
6d4db0bf 1310 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1311 "ECGroup", /* @tp_name@ */
d7ab1bab 1312 sizeof(group_pyobj), /* @tp_basicsize@ */
1313 0, /* @tp_itemsize@ */
1314
1315 group_pydealloc, /* @tp_dealloc@ */
1316 0, /* @tp_print@ */
1317 0, /* @tp_getattr@ */
1318 0, /* @tp_setattr@ */
1319 0, /* @tp_compare@ */
1320 0, /* @tp_repr@ */
1321 0, /* @tp_as_number@ */
1322 0, /* @tp_as_sequence@ */
1323 0, /* @tp_as_mapping@ */
1324 0, /* @tp_hash@ */
1325 0, /* @tp_call@ */
1326 0, /* @tp_str@ */
1327 0, /* @tp_getattro@ */
1328 0, /* @tp_setattro@ */
1329 0, /* @tp_as_buffer@ */
1330 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1331 Py_TPFLAGS_BASETYPE,
1332
1333 /* @tp_doc@ */
1334"Elliptic curve groups.",
1335
1336 0, /* @tp_traverse@ */
1337 0, /* @tp_clear@ */
1338 0, /* @tp_richcompare@ */
1339 0, /* @tp_weaklistoffset@ */
1340 0, /* @tp_iter@ */
963a6148 1341 0, /* @tp_iternext@ */
d7ab1bab 1342 0, /* @tp_methods@ */
1343 0, /* @tp_members@ */
1344 ecgroup_pygetset, /* @tp_getset@ */
1345 0, /* @tp_base@ */
1346 0, /* @tp_dict@ */
1347 0, /* @tp_descr_get@ */
1348 0, /* @tp_descr_set@ */
1349 0, /* @tp_dictoffset@ */
1350 0, /* @tp_init@ */
1351 PyType_GenericAlloc, /* @tp_alloc@ */
1352 ecgroup_pynew, /* @tp_new@ */
3aa33042 1353 0, /* @tp_free@ */
d7ab1bab 1354 0 /* @tp_is_gc@ */
1355};
1356
1357/*----- Global stuff ------------------------------------------------------*/
1358
1359static PyMethodDef methods[] = {
1360#define METHNAME(name) meth_##name
1361 METH (_GE_frombuf, "frombuf(BUF) -> X, REST")
1362 METH (_GE_fromraw, "fromraw(BUF) -> X, REST")
1363 METH (_GE_fromstring, "fromstring(STR) -> X, REST")
1364 METH (_Group_parse, "parse(STR) -> G, REST")
1365 METH (_DHInfo_parse, "parse(STR) -> D, REST")
1366 METH (_BinDHInfo_parse, "parse(STR) -> D, REST")
1367 METH (_DHInfo__groupn, 0)
1368 METH (_BinDHInfo__groupn, 0)
1369 KWMETH(_DHInfo_generate, "\
5d00a630 1370generate(PBITS, [qbits = 0, event = pgen_nullev,\n\
b2687a0a 1371 rng = rand, nsteps = 0]) -> D")
d7ab1bab 1372 KWMETH(_DHInfo_genlimlee, "\
1373genlimlee(PBITS, QBITS, [event = pgen_nullev, ievent = pgen_nullev,\n\
b2687a0a 1374 rng = rand, nsteps = 0, subgroupp = True]) -> (D, [Q, ...])")
d7ab1bab 1375 KWMETH(_DHInfo_gendsa, "\
1376gendsa(PBITS, QBITS, SEED, [event = pgen_nullev, nsteps = 0])\n\
1377 -> (D, SEED, COUNT)")
2a28a112
MW		 1378 KWMETH(_DHInfo_genkcdsa, "\
1379gendsa(PBITS, QBITS, [event = pgen_nullev, rng = rand, nsteps = 0])\n\
1380 -> (D, V)")
d7ab1bab 1381#undef METHNAME
1382 { 0 }
1383};
1384
1385void group_pyinit(void)
1386{
1387 INITTYPE(fginfo, root);
1388 INITTYPE(dhinfo, fginfo);
1389 INITTYPE(bindhinfo, dhinfo);
1390 INITTYPE(ge, root);
1391 INITTYPE(group, type);
1392 INITTYPE(primegroup, group);
1393 INITTYPE(bingroup, group);
1394 INITTYPE(ecgroup, group);
1395 addmethods(methods);
1396}
1397
1398void group_pyinsert(PyObject *mod)
1399{
1400 INSERT("FGInfo", fginfo_pytype);
1401 INSERT("DHInfo", dhinfo_pytype);
1402 INSERT("BinDHInfo", bindhinfo_pytype);
1403 INSERT("GE", ge_pytype);
1404 INSERT("Group", group_pytype);
1405 INSERT("PrimeGroup", primegroup_pytype);
1406 INSERT("BinGroup", bingroup_pytype);
1407 INSERT("ECGroup", ecgroup_pytype);
1408 INSERT("_pgroups", namedgroups(ptab, &npgroups));
1409 INSERT("_bingroups", namedgroups(bintab, &nbingroups));
1410}
1411
1412/*----- That's all, folks -------------------------------------------------*/
Catacomb cryptographic library -- Python bindings