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algorithms.c, ec.c, field.c: Replace properties by member access.
[catacomb-python] / group.c
CommitLineData
d7ab1bab 1/* -*-c-*-
2 *
d7ab1bab 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
c6e89d48
MW		 33static PyTypeObject *fginfo_pytype, *dhinfo_pytype, *bindhinfo_pytype;
34
35typedef struct fginfo_pyobj {
36 PyObject_HEAD
37 gprime_param dp;
38} fginfo_pyobj;
39
40#define FGINFO_DP(fg) (&((fginfo_pyobj *)(fg))->dp)
41
42static PyObject *fginfo_pywrap(gprime_param *dp, PyTypeObject *ty)
d7ab1bab 43{
44 fginfo_pyobj *z = PyObject_New(fginfo_pyobj, ty);
2a28a112 45 z->dp = *dp;
d7ab1bab 46 return ((PyObject *)z);
47}
48
49static PyObject *fginfo_pynew(PyTypeObject *ty,
50 PyObject *arg, PyObject *kw)
51{
827f89d7 52 static const char *const kwlist[] = { "p", "r", "g", 0 };
d7ab1bab 53 gprime_param dp = { 0 };
54 fginfo_pyobj *z = 0;
55
827f89d7 56 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&O&O&:new", KWLIST,
d7ab1bab 57 convmp, &dp.p,
58 convmp, &dp.q,
5f959e50 59 convmp, &dp.g))
d7ab1bab 60 goto end;
61 z = PyObject_New(fginfo_pyobj, ty);
62 z->dp = dp;
63 return ((PyObject *)z);
64end:
65 mp_drop(dp.p);
66 mp_drop(dp.q);
67 mp_drop(dp.g);
68 return (0);
69}
70
71static PyObject *figet_r(PyObject *me, void *hunoz)
2a28a112 72 { return mp_pywrap(MP_COPY(FGINFO_DP(me)->q)); }
d7ab1bab 73
74static PyObject *diget_p(PyObject *me, void *hunoz)
2a28a112 75 { return mp_pywrap(MP_COPY(FGINFO_DP(me)->p)); }
d7ab1bab 76
77static PyObject *diget_g(PyObject *me, void *hunoz)
2a28a112 78 { return mp_pywrap(MP_COPY(FGINFO_DP(me)->g)); }
d7ab1bab 79
80static PyObject *biget_p(PyObject *me, void *hunoz)
2a28a112 81 { return gf_pywrap(MP_COPY(FGINFO_DP(me)->p)); }
d7ab1bab 82
83static PyObject *biget_m(PyObject *me, void *hunoz)
84 { return PyInt_FromLong(mp_octets(FGINFO_DP(me)->p) - 1); }
85
86static PyObject *biget_g(PyObject *me, void *hunoz)
2a28a112 87 { return gf_pywrap(MP_COPY(FGINFO_DP(me)->g)); }
d7ab1bab 88
89static void fginfo_pydealloc(PyObject *me)
90{
91 mp_drop(FGINFO_DP(me)->p);
92 mp_drop(FGINFO_DP(me)->q);
93 mp_drop(FGINFO_DP(me)->g);
3aa33042 94 FREEOBJ(me);
d7ab1bab 95}
96
a157093f 97static PyObject *dimeth_generate(PyObject *me, PyObject *arg, PyObject *kw)
d7ab1bab 98{
99 dh_param dp;
100 unsigned ql = 0, pl;
101 unsigned steps = 0;
102 grand *r = &rand_global;
930d78e3
MW		 103 struct excinfo exc = EXCINFO_INIT;
104 pypgev evt = { { 0 } };
827f89d7 105 static const char *const kwlist[] =
a157093f 106 { "pbits", "qbits", "event", "rng", "nsteps", 0 };
d7ab1bab 107 PyObject *rc = 0;
108
930d78e3 109 evt.exc = &exc;
a157093f
MW		 110 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&O&O&O&:generate", KWLIST,
111 convuint, &pl, convuint, &ql,
d7ab1bab 112 convpgev, &evt, convgrand, &r,
113 convuint, &steps))
114 goto end;
930d78e3
MW		 115 if (dh_gen(&dp, ql, pl, steps, r, evt.ev.proc, evt.ev.ctx))
116 PGENERR(&exc);
d7ab1bab 117 rc = fginfo_pywrap(&dp, dhinfo_pytype);
118end:
119 droppgev(&evt);
120 return (rc);
121}
122
a157093f 123static PyObject *dimeth_genlimlee(PyObject *me, PyObject *arg, PyObject *kw)
d7ab1bab 124{
125 dh_param dp;
126 unsigned ql, pl;
127 unsigned steps = 0;
128 grand *r = &rand_global;
930d78e3
MW		 129 struct excinfo exc = EXCINFO_INIT;
130 pypgev oe = { { 0 } }, ie = { { 0 } };
d7ab1bab 131 int subgroupp = 1;
132 unsigned f = 0;
827f89d7 133 static const char *const kwlist[] = {
a157093f 134 "pbits", "qbits", "event", "ievent",
827f89d7
MW		 135 "rng", "nsteps", "subgroupp", 0
136 };
d7ab1bab 137 size_t i, nf;
138 mp **v = 0;
139 PyObject *rc = 0, *vec = 0;
140
930d78e3 141 oe.exc = ie.exc = &exc;
d7ab1bab 142 if (!PyArg_ParseTupleAndKeywords(arg, kw,
a157093f
MW		 143 "O&O&|O&O&O&O&O&:genlimlee", KWLIST,
144 convuint, &pl, convuint, &ql,
d7ab1bab 145 convpgev, &oe, convpgev, &ie,
146 convgrand, &r, convuint, &steps,
147 convbool, &subgroupp))
148 goto end;
149 if (subgroupp) f |= DH_SUBGROUP;
150 if (dh_limlee(&dp, ql, pl, f, steps, r,
930d78e3
MW		 151 oe.ev.proc, oe.ev.ctx, ie.ev.proc, ie.ev.ctx, &nf, &v))
152 PGENERR(&exc);
d7ab1bab 153 vec = PyList_New(nf);
154 for (i = 0; i < nf; i++)
c51a597d 155 PyList_SET_ITEM(vec, i, mp_pywrap(v[i]));
d7ab1bab 156 xfree(v);
157 rc = Py_BuildValue("(NN)", fginfo_pywrap(&dp, dhinfo_pytype), vec);
158end:
159 droppgev(&oe); droppgev(&ie);
160 return (rc);
161}
162
a157093f 163static PyObject *dimeth_genkcdsa(PyObject *me, PyObject *arg, PyObject *kw)
2a28a112
MW		 164{
165 dh_param dp;
166 unsigned ql, pl;
167 unsigned steps = 0;
168 grand *r = &rand_global;
930d78e3
MW		 169 struct excinfo exc = EXCINFO_INIT;
170 pypgev evt = { { 0 } };
827f89d7 171 static const char *const kwlist[] =
a157093f 172 { "pbits", "qbits", "event", "rng", "nsteps", 0 };
2a28a112
MW		 173 mp *v = MP_NEW;
174 PyObject *rc = 0;
175
930d78e3 176 evt.exc = &exc;
a157093f
MW		 177 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&O&|O&O&O&:genkcdsa", KWLIST,
178 convuint, &pl, convuint, &ql,
2a28a112
MW		 179 convpgev, &evt, convgrand, &r,
180 convuint, &steps))
181 goto end;
930d78e3
MW		 182 if (dh_kcdsagen(&dp, ql, pl, 0, steps, r, evt.ev.proc, evt.ev.ctx))
183 PGENERR(&exc);
2a28a112
MW		 184 mp_div(&v, 0, dp.p, dp.q);
185 v = mp_lsr(v, v, 1);
186 rc = Py_BuildValue("(NN)", fginfo_pywrap(&dp, dhinfo_pytype),
187 mp_pywrap(v));
188end:
189 droppgev(&evt);
190 return (rc);
191}
192
a157093f 193static PyObject *dimeth_gendsa(PyObject *me, PyObject *arg, PyObject *kw)
d7ab1bab 194{
195 dsa_param dp;
196 unsigned ql, pl;
197 unsigned steps = 0;
198 dsa_seed ds;
199 char *k;
6b54260d 200 Py_ssize_t ksz;
930d78e3
MW		 201 struct excinfo exc = EXCINFO_INIT;
202 pypgev evt = { { 0 } };
827f89d7 203 static const char *const kwlist[] =
a157093f 204 { "pbits", "qbits", "seed", "event", "nsteps", 0 };
d7ab1bab 205 PyObject *rc = 0;
206
930d78e3 207 evt.exc = &exc;
a157093f
MW		 208 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&O&s#|O&O&:gendsa", KWLIST,
209 convuint, &pl, convuint, &ql,
d7ab1bab 210 &k, &ksz, convpgev, &evt,
211 convuint, &steps))
212 goto end;
930d78e3
MW		 213 if (dsa_gen(&dp, ql, pl, steps, k, ksz, &ds, evt.ev.proc, evt.ev.ctx))
214 PGENERR(&exc);
d7ab1bab 215 rc = Py_BuildValue("(NNl)", fginfo_pywrap(&dp, dhinfo_pytype),
216 bytestring_pywrap(ds.p, ds.sz), (long)ds.count);
217 xfree(ds.p);
218end:
219 droppgev(&evt);
220 return (rc);
221}
222
223static int npgroups = -1, nbingroups = -1;
224
225static PyObject *namedgroups(const pentry *pp, int *ne)
226{
227 int i, j;
228 const char *p;
229 PyObject *d, *c;
230
231 d = PyDict_New();
232 for (i = 0; pp[i].name; i++) {
233 p = pp[i].name;
234 for (j = 0; j < i; j++) {
235 if (pp[i].data == pp[j].data) {
236 c = PyDict_GetItemString(d, (/*unconst*/ char *)pp[j].name);
237 Py_INCREF(c);
238 goto found;
239 }
240 }
241 c = PyInt_FromLong(i);
242 found:
98963817 243 PyDict_SetItemString(d, (/*unconst*/ char *)p, c);
d7ab1bab 244 Py_DECREF(c);
245 }
246 *ne = i;
b2687a0a 247 return (d);
d7ab1bab 248}
249
250static PyObject *meth__groupn(PyObject *me, PyObject *arg,
251 PyTypeObject *ty, const pentry *pp, int ne)
252{
253 int i;
254 gprime_param gp;
255 PyObject *rc = 0;
256
a157093f 257 if (!PyArg_ParseTuple(arg, "i:_groupn", &i)) goto end;
d7ab1bab 258 if (i < 0 || i >= ne) VALERR("group index out of range");
259 dh_infofromdata(&gp, pp[i].data);
260 rc = fginfo_pywrap(&gp, ty);
261end:
262 return (rc);
263}
264
a157093f 265static PyObject *dimeth__groupn(PyObject *me, PyObject *arg)
d7ab1bab 266 { return (meth__groupn(me, arg, dhinfo_pytype, ptab, npgroups)); }
267
a157093f 268static PyObject *bimeth__groupn(PyObject *me, PyObject *arg)
d7ab1bab 269 { return (meth__groupn(me, arg, bindhinfo_pytype, bintab, nbingroups)); }
270
271static PyObject *meth__parse(PyObject *me, PyObject *arg, PyTypeObject *ty,
272 int (*parse)(qd_parse *, gprime_param *))
273{
274 qd_parse qd;
275 char *p;
276 gprime_param gp;
277 PyObject *rc = 0;
278
a157093f 279 if (!PyArg_ParseTuple(arg, "s:parse", &p)) goto end;
f281293c 280 qd.p = p; qd.e = 0;
80f7cd89 281 if (parse(&qd, &gp)) VALERR(qd.e);
d7ab1bab 282 rc = fginfo_pywrap(&gp, ty);
283end:
b2687a0a 284 return (rc);
d7ab1bab 285}
286
a157093f 287static PyObject *dimeth_parse(PyObject *me, PyObject *arg)
d7ab1bab 288 { return (meth__parse(me, arg, dhinfo_pytype, dh_parse)); }
289
a157093f 290static PyObject *bimeth_parse(PyObject *me, PyObject *arg)
d7ab1bab 291 { return (meth__parse(me, arg, bindhinfo_pytype, dhbin_parse)); }
292
c90f712e 293static const PyGetSetDef fginfo_pygetset[] = {
d7ab1bab 294#define GETSETNAME(op, name) fi##op##_##name
d96c882e 295 GET (r, "I.r -> group order")
d7ab1bab 296#undef GETSETNAME
297 { 0 }
298};
299
c90f712e 300static const PyGetSetDef dhinfo_pygetset[] = {
d7ab1bab 301#define GETSETNAME(op, name) di##op##_##name
d96c882e
MW		 302 GET (p, "I.p -> prime")
303 GET (g, "I.g -> generator")
d7ab1bab 304#undef GETSETNAME
305 { 0 }
306};
307
a157093f
MW		 308static const PyMethodDef dhinfo_pymethods[] = {
309#define METHNAME(name) dimeth_##name
310 SMTH (parse, "parse(STR) -> D, REST")
311 SMTH (_groupn, 0)
312 KWSMTH(generate,
313 "generate(PBITS, [qbits = 0], [event = pgen_nullev],\n"
314 " [rng = rand], [nsteps = 0]) -> D")
315 KWSMTH(genlimlee,
316 "genlimlee(PBITS, QBITS, [event = pgen_nullev], "
317 "[ievent = pgen_nullev],\n"
318 " [rng = rand], [nsteps = 0], [subgroupp = True]) "
319 "-> (D, [Q, ...])")
320 KWSMTH(gendsa,
321 "gendsa(PBITS, QBITS, SEED, [event = pgen_nullev], [nsteps = 0])\n"
322 " -> (D, SEED, COUNT)")
323 KWSMTH(genkcdsa,
324 "gendsa(PBITS, QBITS, [event = pgen_nullev], "
325 "[rng = rand], [nsteps = 0])\n"
326 " -> (D, V)")
327#undef METHNAME
328 { 0 }
329};
330
c90f712e 331static const PyGetSetDef bindhinfo_pygetset[] = {
d7ab1bab 332#define GETSETNAME(op, name) bi##op##_##name
d96c882e
MW		 333 GET (p, "I.p -> irreducible polynomial")
334 GET (m, "I.m -> degree of polynomial")
335 GET (g, "I.g -> generator")
d7ab1bab 336#undef GETSETNAME
337 { 0 }
338};
339
a157093f
MW		 340static const PyMethodDef bindhinfo_pymethods[] = {
341#define METHNAME(name) bimeth_##name
342 SMTH (parse, "parse(STR) -> D, REST")
343 SMTH (_groupn, 0)
344#undef METHNAME
345 { 0 }
346};
347
d7ab1bab 348static PyTypeObject fginfo_pytype_skel = {
6d4db0bf 349 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 350 "FGInfo", /* @tp_name@ */
d7ab1bab 351 sizeof(fginfo_pyobj), /* @tp_basicsize@ */
352 0, /* @tp_itemsize@ */
353
354 fginfo_pydealloc, /* @tp_dealloc@ */
355 0, /* @tp_print@ */
356 0, /* @tp_getattr@ */
357 0, /* @tp_setattr@ */
358 0, /* @tp_compare@ */
359 0, /* @tp_repr@ */
360 0, /* @tp_as_number@ */
361 0, /* @tp_as_sequence@ */
362 0, /* @tp_as_mapping@ */
363 0, /* @tp_hash@ */
364 0, /* @tp_call@ */
365 0, /* @tp_str@ */
366 0, /* @tp_getattro@ */
367 0, /* @tp_setattro@ */
368 0, /* @tp_as_buffer@ */
369 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
370 Py_TPFLAGS_BASETYPE,
371
372 /* @tp_doc@ */
d96c882e 373 "Abstract base class for field-group information objects.",
d7ab1bab 374
375 0, /* @tp_traverse@ */
376 0, /* @tp_clear@ */
377 0, /* @tp_richcompare@ */
378 0, /* @tp_weaklistoffset@ */
379 0, /* @tp_iter@ */
963a6148 380 0, /* @tp_iternext@ */
d7ab1bab 381 0, /* @tp_methods@ */
382 0, /* @tp_members@ */
c90f712e 383 PYGETSET(fginfo), /* @tp_getset@ */
d7ab1bab 384 0, /* @tp_base@ */
385 0, /* @tp_dict@ */
386 0, /* @tp_descr_get@ */
387 0, /* @tp_descr_set@ */
388 0, /* @tp_dictoffset@ */
389 0, /* @tp_init@ */
390 PyType_GenericAlloc, /* @tp_alloc@ */
391 abstract_pynew, /* @tp_new@ */
3aa33042 392 0, /* @tp_free@ */
d7ab1bab 393 0 /* @tp_is_gc@ */
394};
395
396static PyTypeObject dhinfo_pytype_skel = {
6d4db0bf 397 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 398 "DHInfo", /* @tp_name@ */
d7ab1bab 399 sizeof(fginfo_pyobj), /* @tp_basicsize@ */
400 0, /* @tp_itemsize@ */
401
402 fginfo_pydealloc, /* @tp_dealloc@ */
403 0, /* @tp_print@ */
404 0, /* @tp_getattr@ */
405 0, /* @tp_setattr@ */
406 0, /* @tp_compare@ */
407 0, /* @tp_repr@ */
408 0, /* @tp_as_number@ */
409 0, /* @tp_as_sequence@ */
410 0, /* @tp_as_mapping@ */
411 0, /* @tp_hash@ */
412 0, /* @tp_call@ */
413 0, /* @tp_str@ */
414 0, /* @tp_getattro@ */
415 0, /* @tp_setattro@ */
416 0, /* @tp_as_buffer@ */
417 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
418 Py_TPFLAGS_BASETYPE,
419
420 /* @tp_doc@ */
d96c882e 421 "DHInfo(P, R, G): standard (integer) Diffie-Hellman group information.",
d7ab1bab 422
423 0, /* @tp_traverse@ */
424 0, /* @tp_clear@ */
425 0, /* @tp_richcompare@ */
426 0, /* @tp_weaklistoffset@ */
427 0, /* @tp_iter@ */
963a6148 428 0, /* @tp_iternext@ */
a157093f 429 PYMETHODS(dhinfo), /* @tp_methods@ */
d7ab1bab 430 0, /* @tp_members@ */
c90f712e 431 PYGETSET(dhinfo), /* @tp_getset@ */
d7ab1bab 432 0, /* @tp_base@ */
433 0, /* @tp_dict@ */
434 0, /* @tp_descr_get@ */
435 0, /* @tp_descr_set@ */
436 0, /* @tp_dictoffset@ */
437 0, /* @tp_init@ */
438 PyType_GenericAlloc, /* @tp_alloc@ */
439 fginfo_pynew, /* @tp_new@ */
3aa33042 440 0, /* @tp_free@ */
d7ab1bab 441 0 /* @tp_is_gc@ */
442};
443
444static PyTypeObject bindhinfo_pytype_skel = {
6d4db0bf 445 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 446 "BinDHInfo", /* @tp_name@ */
d7ab1bab 447 sizeof(fginfo_pyobj), /* @tp_basicsize@ */
448 0, /* @tp_itemsize@ */
449
450 fginfo_pydealloc, /* @tp_dealloc@ */
451 0, /* @tp_print@ */
452 0, /* @tp_getattr@ */
453 0, /* @tp_setattr@ */
454 0, /* @tp_compare@ */
455 0, /* @tp_repr@ */
456 0, /* @tp_as_number@ */
457 0, /* @tp_as_sequence@ */
458 0, /* @tp_as_mapping@ */
459 0, /* @tp_hash@ */
460 0, /* @tp_call@ */
461 0, /* @tp_str@ */
462 0, /* @tp_getattro@ */
463 0, /* @tp_setattro@ */
464 0, /* @tp_as_buffer@ */
465 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
466 Py_TPFLAGS_BASETYPE,
467
468 /* @tp_doc@ */
d96c882e 469 "BinDHInfo(P, R, G): binary-field Diffie-Hellman group information.",
d7ab1bab 470
471 0, /* @tp_traverse@ */
472 0, /* @tp_clear@ */
473 0, /* @tp_richcompare@ */
474 0, /* @tp_weaklistoffset@ */
475 0, /* @tp_iter@ */
963a6148 476 0, /* @tp_iternext@ */
a157093f 477 PYMETHODS(bindhinfo), /* @tp_methods@ */
d7ab1bab 478 0, /* @tp_members@ */
c90f712e 479 PYGETSET(bindhinfo), /* @tp_getset@ */
d7ab1bab 480 0, /* @tp_base@ */
481 0, /* @tp_dict@ */
482 0, /* @tp_descr_get@ */
483 0, /* @tp_descr_set@ */
484 0, /* @tp_dictoffset@ */
485 0, /* @tp_init@ */
486 PyType_GenericAlloc, /* @tp_alloc@ */
487 fginfo_pynew, /* @tp_new@ */
3aa33042 488 0, /* @tp_free@ */
d7ab1bab 489 0 /* @tp_is_gc@ */
490};
491
492/*----- General utilities -------------------------------------------------*/
493
494PyTypeObject *ge_pytype, *group_pytype;
c6e89d48 495static PyTypeObject *primegroup_pytype, *bingroup_pytype, *ecgroup_pytype;
d7ab1bab 496
497group *group_copy(group *g)
498{
20441612 499 if (STRCMP(G_NAME(g), ==, "prime")) {
d7ab1bab 500 gctx_prime *gc = (gctx_prime *)g;
501 gprime_param gp;
502 gp.g = G_TOINT(g, MP_NEW, g->g);
503 gp.p = gc->mm.m;
504 gp.q = gc->g.r;
505 g = group_prime(&gp);
506 MP_DROP(gp.g);
20441612 507 } else if (STRCMP(G_NAME(g), ==, "bin")) {
d7ab1bab 508 gctx_bin *gc = (gctx_bin *)g;
509 gbin_param gb;
510 gb.g = G_TOINT(g, MP_NEW, g->g);
511 gb.p = gc->r.p;
512 gb.q = gc->g.r;
513 g = group_binary(&gb);
b2687a0a 514 MP_DROP(gb.g);
20441612 515 } else if (STRCMP(G_NAME(g), ==, "ec")) {
d7ab1bab 516 gctx_ec *gc = (gctx_ec *)g;
517 ec_info ei;
518 if ((ei.c = eccurve_copy(gc->ei.c)) == 0)
519 return (0);
520 EC_CREATE(&ei.g);
521 EC_COPY(&ei.g, &gc->ei.g);
522 ei.r = MP_COPY(gc->ei.r);
523 ei.h = MP_COPY(gc->ei.h);
524 g = group_ec(&ei);
525 } else
526 g = 0;
527 return (g);
528}
529
530PyObject *ge_pywrap(PyObject *gobj, ge *x)
531{
532 ge_pyobj *z = PyObject_New(ge_pyobj, (PyTypeObject *)gobj);
533 z->x = x;
534 z->g = GROUP_G(gobj);
535 Py_INCREF(gobj);
536 return ((PyObject *)z);
537}
538
539static PyObject *ge_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
540{
827f89d7 541 static const char *const kwlist[] = { "x", 0 };
d7ab1bab 542 PyObject *x;
543 group *g;
544 ec p = EC_INIT;
545 mp *y = 0;
546 ge *xx = 0;
547 mptext_stringctx sc;
548
549 g = GROUP_G(ty);
827f89d7 550 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O:new", KWLIST, &x)) goto end;
d7ab1bab 551 xx = G_CREATE(g);
552 if (ECPT_PYCHECK(x)) {
553 getecptout(&p, x);
554 if (G_FROMEC(g, xx, &p))
555 TYERR("can't convert from elliptic curve point");
556 EC_DESTROY(&p);
557 } else if ((y = tomp(x)) != 0) {
558 if (G_FROMINT(g, xx, y))
559 TYERR("can't convert from integer");
560 MP_DROP(y);
561 } else if (PyString_Check(x)) {
562 sc.buf = PyString_AS_STRING(x);
563 sc.lim = sc.buf + PyString_GET_SIZE(x);
564 if (G_READ(g, xx, &mptext_stringops, &sc) || sc.buf < sc.lim)
80f7cd89 565 VALERR("malformed group element string");
d7ab1bab 566 } else
567 TYERR("can't convert to group element");
568 return (ge_pywrap((PyObject *)ty, xx));
569end:
570 mp_drop(y);
571 EC_DESTROY(&p);
572 if (xx) G_DESTROY(g, xx);
573 return (0);
574}
575
576static PyObject *group_dopywrap(PyTypeObject *ty, group *g)
577{
df9f8366 578 group_pyobj *gobj = newtype(ty, 0, g->ops->name);
d7ab1bab 579 gobj->g = g;
24b3d57b
MW		 580 gobj->ty.ht_type.tp_basicsize = sizeof(ge_pyobj);
581 gobj->ty.ht_type.tp_base = ge_pytype;
d7ab1bab 582 Py_INCREF(group_pytype);
24b3d57b
MW		 583 gobj->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT |
584 Py_TPFLAGS_BASETYPE |
585 Py_TPFLAGS_CHECKTYPES |
586 Py_TPFLAGS_HEAPTYPE);
587 gobj->ty.ht_type.tp_alloc = PyType_GenericAlloc;
588 gobj->ty.ht_type.tp_free = 0;
589 gobj->ty.ht_type.tp_new = ge_pynew;
dc075750 590 typeready(&gobj->ty.ht_type);
d7ab1bab 591 return ((PyObject *)gobj);
592}
593
594PyObject *group_pywrap(group *g)
595{
596 PyTypeObject *ty;
597
20441612
MW		 598 if (STRCMP(G_NAME(g), ==, "prime")) ty = primegroup_pytype;
599 else if (STRCMP(G_NAME(g), ==, "bin")) ty = bingroup_pytype;
600 else if (STRCMP(G_NAME(g), ==, "ec")) ty = ecgroup_pytype;
d7ab1bab 601 else abort();
602 return (group_dopywrap(ty, g));
603}
604
605/*----- Group elements ----------------------------------------------------*/
606
607#define BINOP(name) \
608 static PyObject *ge_py##name(PyObject *x, PyObject *y) \
609 { \
610 ge *z; \
611 group *g; \
612 if (!GE_PYCHECK(x) || !GE_PYCHECK(y) || \
613 (GE_G(x) != GE_G(y) && !group_samep(GE_G(x), GE_G(y)))) \
614 RETURN_NOTIMPL; \
615 g = GE_G(x); \
616 z = G_CREATE(g); \
617 g->ops->name(g, z, GE_X(x), GE_X(y)); \
618 return (ge_pywrap(GE_GOBJ(x), z)); \
619 }
620BINOP(mul)
621BINOP(div)
622#undef BINOP
623
624#define UNOP(name) \
91e56f06 625 static PyObject *gemeth_##name(PyObject *me) \
d7ab1bab 626 { \
627 group *g; \
628 ge *z; \
d7ab1bab 629 g = GE_G(me); \
630 z = G_CREATE(g); \
631 g->ops->name(g, z, GE_X(me)); \
632 return (ge_pywrap(GE_GOBJ(me), z)); \
633 }
634UNOP(sqr)
635UNOP(inv)
636#undef UNOP
637
638static PyObject *ge_pyexp(PyObject *x, PyObject *n, PyObject *m)
639{
640 mp *nn;
641 ge *z;
642
643 if (m != Py_None || !GE_PYCHECK(x) || (nn = getmp(n)) == 0)
644 RETURN_NOTIMPL;
645 z = G_CREATE(GE_G(x));
646 G_EXP(GE_G(x), z, GE_X(x), nn);
647 MP_DROP(nn);
648 return (ge_pywrap(GE_GOBJ(x), z));
649}
650
651static void ge_pydealloc(PyObject *me)
652{
653 G_DESTROY(GE_G(me), GE_X(me));
654 Py_DECREF(GE_GOBJ(me));
3aa33042 655 FREEOBJ(me);
d7ab1bab 656}
657
658static void group_pydealloc(PyObject *me)
659{
660 G_DESTROYGROUP(GROUP_G(me));
661 PyType_Type.tp_dealloc(me);
662}
663
664static PyObject *gmexp_id(PyObject *me)
665{
666 group *g = GROUP_G(me); ge *x = G_CREATE(g);
667 G_COPY(g, x, g->i); return (ge_pywrap(me, x));
668}
669
670static int gmexp_fill(void *pp, PyObject *me, PyObject *x, PyObject *m)
671{
672 group_expfactor *f = pp;
673
674 if (!GE_PYCHECK(x) || GE_G(x) != GROUP_G(me) || (f->exp = getmp(m)) == 0)
675 return (-1);
676 f->base = GE_X(x);
677 return (0);
678}
679
680static PyObject *ge_pyrichcompare(PyObject *x, PyObject *y, int op)
681{
682 int b;
683 PyObject *rc = 0;
684
685 if (!GE_PYCHECK(x) || !GE_PYCHECK(y) ||
686 (GE_G(x) != GE_G(y) && !group_samep(GE_G(x), GE_G(y))))
687 RETURN_NOTIMPL;
688 switch (op) {
689 case Py_EQ: b = G_EQ(GE_G(x), GE_X(x), GE_X(y)); break;
690 case Py_NE: b = !G_EQ(GE_G(x), GE_X(x), GE_X(y)); break;
691 default: TYERR("group elements are unordered");
692 }
693 rc = getbool(b);
694end:
695 return (rc);
696}
697
91e56f06 698static PyObject *gemeth_check(PyObject *me)
d7ab1bab 699{
d7ab1bab 700 if (group_check(GE_G(me), GE_X(me))) VALERR("bad group element");
701 RETURN_OBJ(me);
702end:
703 return (0);
704}
705
706static int ge_pynonzerop(PyObject *x)
707 { return (!G_IDENTP(GE_G(x), GE_X(x))); }
708
709static PyObject *ge_pystr(PyObject *me)
710{
711 dstr d = DSTR_INIT;
712 PyObject *rc;
713
714 group_writedstr(GE_G(me), GE_X(me), &d);
715 rc = PyString_FromStringAndSize(d.buf, d.len);
716 DDESTROY(&d);
717 return (rc);
718}
719
720static PyObject *ge_pylong(PyObject *me)
721{
722 mp *x = 0;
723 PyObject *rc = 0;
724
725 if ((x = G_TOINT(GE_G(me), MP_NEW, GE_X(me))) == 0)
726 TYERR("can't convert to integer");
f368b46e 727 rc = mp_topylong(x);
d7ab1bab 728end:
729 mp_drop(x);
730 return (rc);
731}
732
733static PyObject *ge_pyint(PyObject *me)
734{
735 mp *x = 0;
736 PyObject *rc = 0;
737 long l;
738
739 if ((x = G_TOINT(GE_G(me), MP_NEW, GE_X(me))) == 0)
740 TYERR("can't convert to integer");
bc243788
MW		 741 if (!mp_tolong_checked(x, &l, 0)) rc = PyInt_FromLong(l);
742 else rc = mp_topylong(x);
d7ab1bab 743end:
744 mp_drop(x);
745 return (rc);
746}
747
91e56f06 748static PyObject *gemeth_toint(PyObject *me)
d7ab1bab 749{
750 mp *x;
751
d7ab1bab 752 if ((x = G_TOINT(GE_G(me), MP_NEW, GE_X(me))) == 0)
753 TYERR("can't convert to integer");
754 return (mp_pywrap(x));
755end:
756 return (0);
757}
758
759static PyObject *gemeth_toec(PyObject *me, PyObject *arg, PyObject *kw)
760{
827f89d7 761 static const char *const kwlist[] = { "curve", 0 };
fd60c6b4
MW		 762 PyTypeObject *cty = 0;
763 PyObject *rc = 0;
764 group *g;
765 ec_curve *c;
d7ab1bab 766 ec p = EC_INIT;
767
827f89d7 768 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O:toec", KWLIST,
d7ab1bab 769 &cty)) goto end;
fd60c6b4
MW		 770 g = GROUP_G(GE_GOBJ(me));
771 if (cty) {
772 if (!PyType_Check(cty) || !PyType_IsSubtype(cty, ecpt_pytype))
773 TYERR("want subtype of catacomb.ECPt");
774 Py_INCREF((PyObject *)cty);
20441612 775 } else if (STRCMP(G_NAME(g), ==, "ec")) {
fd60c6b4
MW		 776 c = eccurve_copy(((gctx_ec *)g)->ei.c);
777 cty = (PyTypeObject *)eccurve_pywrap(0, c);
778 } else {
779 cty = ecpt_pytype;
780 Py_INCREF((PyObject *)cty);
781 }
782 if (G_TOEC(GE_G(me), &p, GE_X(me))) {
783 Py_DECREF((PyObject *)cty);
d7ab1bab 784 TYERR("can't convert to ec point");
fd60c6b4
MW		 785 }
786 rc = ecpt_pywrapout(cty, &p);
787 Py_DECREF((PyObject *)cty);
d7ab1bab 788end:
fd60c6b4 789 return (rc);
d7ab1bab 790}
791
91e56f06 792static PyObject *gemeth_tobuf(PyObject *me)
d7ab1bab 793{
794 buf b;
795 PyObject *rc;
796 size_t n;
797
d7ab1bab 798 n = GE_G(me)->noctets + 4;
799 rc = bytestring_pywrap(0, n);
800 buf_init(&b, PyString_AS_STRING(rc), n);
801 G_TOBUF(GE_G(me), &b, GE_X(me));
802 assert(BOK(&b));
803 _PyString_Resize(&rc, BLEN(&b));
804 return (rc);
805}
806
91e56f06 807static PyObject *gemeth_toraw(PyObject *me)
d7ab1bab 808{
809 buf b;
810 PyObject *rc;
811 size_t n;
812
d7ab1bab 813 n = GE_G(me)->noctets;
814 rc = bytestring_pywrap(0, n);
815 buf_init(&b, PyString_AS_STRING(rc), n);
816 G_TORAW(GE_G(me), &b, GE_X(me));
817 assert(BOK(&b));
818 _PyString_Resize(&rc, BLEN(&b));
819 return (rc);
820}
821
822static PyObject *gmexp_exp(PyObject *me, void *pp, int n)
823{
824 ge *z = G_CREATE(GROUP_G(me));
825 G_MEXP(GROUP_G(me), z, pp, n);
826 return (ge_pywrap(me, z));
827}
828
829static void gmexp_drop(void *pp)
830{
831 group_expfactor *f = pp;
832 MP_DROP(f->exp);
833}
834
835static PyObject *gmeth_mexp(PyObject *me, PyObject *arg)
836{
837 return (mexp_common(me, arg, sizeof(group_expfactor),
838 gmexp_id, gmexp_fill, gmexp_exp, gmexp_drop));
839}
840
00a8b95a 841static PyObject *gmeth_checkgroup(PyObject *me, PyObject *arg, PyObject *kw)
d7ab1bab 842{
827f89d7 843 static const char *const kwlist[] = { "rng", 0 };
d7ab1bab 844 grand *r = &rand_global;
845 const char *p;
846
827f89d7 847 if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:checkgroup", KWLIST,
d7ab1bab 848 convgrand, &r))
849 goto end;
850 if ((p = G_CHECK(GROUP_G(me), r)) != 0)
851 VALERR(p);
852 RETURN_OBJ(me);
853end:
854 return (0);
855}
856
857static PyObject *group_pyrichcompare(PyObject *x, PyObject *y, int op)
858{
859 int b = group_samep(GROUP_G(x), GROUP_G(y));
860 switch (op) {
861 case Py_EQ: break;
862 case Py_NE: b = !b;
863 default: TYERR("can't order groups");
864 }
865 return (getbool(b));
866end:
867 return (0);
868}
869
a157093f 870static PyObject *gemeth_frombuf(PyObject *me, PyObject *arg)
d7ab1bab 871{
872 buf b;
873 char *p;
6b54260d 874 Py_ssize_t n;
d7ab1bab 875 group *g;
876 ge *x = 0;
877
a157093f 878 if (!PyArg_ParseTuple(arg, "s#:frombuf", &p, &n)) return (0);
d7ab1bab 879 g = GROUP_G(me);
880 buf_init(&b, p, n);
881 x = G_CREATE(g);
f281293c 882 if (G_FROMBUF(g, &b, x)) VALERR("invalid data");
d7ab1bab 883 return (Py_BuildValue("(NN)", ge_pywrap(me, x), bytestring_pywrapbuf(&b)));
884end:
885 if (x) G_DESTROY(g, x);
886 return (0);
887}
888
a157093f 889static PyObject *gemeth_fromraw(PyObject *me, PyObject *arg)
d7ab1bab 890{
891 buf b;
892 char *p;
6b54260d 893 Py_ssize_t n;
d7ab1bab 894 group *g;
895 ge *x = 0;
896
a157093f 897 if (!PyArg_ParseTuple(arg, "s#:fromraw", &p, &n)) return (0);
d7ab1bab 898 g = GROUP_G(me);
899 buf_init(&b, p, n);
900 x = G_CREATE(g);
f281293c 901 if (G_FROMRAW(g, &b, x)) VALERR("invalid data");
d7ab1bab 902 return (Py_BuildValue("(NN)", ge_pywrap(me, x), bytestring_pywrapbuf(&b)));
903end:
904 if (x) G_DESTROY(g, x);
905 return (0);
906}
907
a157093f 908static PyObject *gemeth_fromstring(PyObject *me, PyObject *arg)
d7ab1bab 909{
910 mptext_stringctx sc;
911 char *p;
6b54260d 912 Py_ssize_t n;
d7ab1bab 913 group *g;
914 ge *x = 0;
915
a157093f 916 if (!PyArg_ParseTuple(arg, "s#:fromstring", &p, &n)) return (0);
d7ab1bab 917 sc.buf = p;
918 sc.lim = sc.buf + n;
919 g = GROUP_G(me);
920 x = G_CREATE(g);
921 if (G_READ(g, x, &mptext_stringops, &sc))
80f7cd89 922 VALERR("bad group element string");
d7ab1bab 923 return (Py_BuildValue("(Ns#)", ge_pywrap(me, x),
6b54260d 924 sc.buf, (Py_ssize_t)(sc.lim - sc.buf)));
d7ab1bab 925end:
926 if (x) G_DESTROY(g, x);
927 return (0);
928}
929
a157093f 930static PyObject *gmeth_parse(PyObject *me, PyObject *arg)
d7ab1bab 931{
932 char *p;
933 qd_parse qd;
934 group *g;
935
a157093f 936 if (!PyArg_ParseTuple(arg, "s:parse", &p)) goto end;
f281293c
MW		 937 qd.p = p; qd.e = 0;
938 if ((g = group_parse(&qd)) == 0) VALERR(qd.e);
d7ab1bab 939 return (group_pywrap(g));
940end:
941 return (0);
942}
943
944static PyObject *geget_group(PyObject *me, void *hunoz)
945 { RETURN_OBJ(GE_GOBJ(me)); }
946
947static PyObject *gget_nbits(PyObject *me, void *hunoz)
948 { return (PyInt_FromLong(GROUP_G(me)->nbits)); }
949
950static PyObject *gget_noctets(PyObject *me, void *hunoz)
951 { return (PyInt_FromLong(GROUP_G(me)->noctets)); }
952
953static PyObject *gget_i(PyObject *me, void *hunoz)
954{
955 group *g = GROUP_G(me); ge *x = G_CREATE(g);
956 G_COPY(g, x, g->i); return (ge_pywrap(me, x));
957}
958
959static PyObject *gget_g(PyObject *me, void *hunoz)
960{
961 group *g = GROUP_G(me); ge *x = G_CREATE(g);
962 G_COPY(g, x, g->g); return (ge_pywrap(me, x));
963}
964
6d481bc6
MW		 965static long ge_pyhash(PyObject *me)
966{
967 buf b;
968 size_t sz = GE_G(me)->noctets + 4;
969 uint32 h = 0xf672c776 + GE_G(me)->ops->ty;
970 octet *p = xmalloc(sz);
971 buf_init(&b, p, sz);
972 G_TOBUF(GE_G(me), &b, GE_X(me));
973 assert(BOK(&b));
974 h = unihash_hash(&unihash_global, h, BBASE(&b), BLEN(&b));
975 xfree(p);
976 return (h % LONG_MAX);
977}
978
d7ab1bab 979static PyObject *gget_r(PyObject *me, void *hunoz)
980 { return (mp_pywrap(MP_COPY(GROUP_G(me)->r))); }
981
982static PyObject *gget_h(PyObject *me, void *hunoz)
983 { return (mp_pywrap(MP_COPY(GROUP_G(me)->h))); }
984
c90f712e 985static const PyGetSetDef ge_pygetset[] = {
d7ab1bab 986#define GETSETNAME(op, name) ge##op##_##name
987 GET (group, "X.group -> group containing X")
988#undef GETSETNAME
989 { 0 }
990};
991
c90f712e 992static const PyMethodDef ge_pymethods[] = {
d7ab1bab 993#define METHNAME(name) gemeth_##name
91e56f06
MW		 994 NAMETH(inv, "X.inv() -> inverse element of X")
995 NAMETH(sqr, "X.sqr() -> X^2 = X * X")
996 NAMETH(check, "X.check() -> check X really belongs to its group")
997 NAMETH(toint, "X.toint() -> X converted to an integer")
d96c882e
MW		 998 KWMETH(toec, "X.toec([curve = ECPt]) -> "
999 "X converted to elliptic curve point")
91e56f06
MW		 1000 NAMETH(tobuf, "X.tobuf() -> X in buffer representation")
1001 NAMETH(toraw, "X.toraw() -> X in raw representation")
a157093f
MW		 1002 CMTH (frombuf, "frombuf(BUF) -> X, REST")
1003 CMTH (fromraw, "fromraw(BUF) -> X, REST")
1004 CMTH (fromstring, "fromstring(STR) -> X, REST")
d7ab1bab 1005#undef METHNAME
1006 { 0 }
1007};
1008
c90f712e 1009static const PyNumberMethods ge_pynumber = {
d7ab1bab 1010 0, /* @nb_add@ */
1011 0, /* @nb_subtract@ */
1012 ge_pymul, /* @nb_multiply@ */
1013 ge_pydiv, /* @nb_divide@ */
1014 0, /* @nb_remainder@ */
1015 0, /* @nb_divmod@ */
1016 ge_pyexp, /* @nb_power@ */
1017 0, /* @nb_negative@ */
1018 0, /* @nb_positive@ */
1019 0, /* @nb_absolute@ */
1020 ge_pynonzerop, /* @nb_nonzero@ */
1021 0, /* @nb_invert@ */
1022 0, /* @nb_lshift@ */
1023 0, /* @nb_rshift@ */
1024 0, /* @nb_and@ */
1025 0, /* @nb_xor@ */
1026 0, /* @nb_or@ */
1027 0, /* @nb_coerce@ */
1028 ge_pyint, /* @nb_int@ */
1029 ge_pylong, /* @nb_long@ */
1030 0 /* meaningless */, /* @nb_float@ */
1031 0, /* @nb_oct@ */
1032 0, /* @nb_hex@ */
1033
1034 0, /* @nb_inplace_add@ */
1035 0, /* @nb_inplace_subtract@ */
1036 0, /* @nb_inplace_multiply@ */
1037 0, /* @nb_inplace_divide@ */
1038 0, /* @nb_inplace_remainder@ */
1039 0, /* @nb_inplace_power@ */
1040 0, /* @nb_inplace_lshift@ */
1041 0, /* @nb_inplace_rshift@ */
1042 0, /* @nb_inplace_and@ */
1043 0, /* @nb_inplace_xor@ */
1044 0, /* @nb_inplace_or@ */
1045
1046 0, /* @nb_floor_divide@ */
1047 ge_pydiv, /* @nb_true_divide@ */
1048 0, /* @nb_inplace_floor_divide@ */
1049 0, /* @nb_inplace_true_divide@ */
1050};
1051
1052static PyTypeObject ge_pytype_skel = {
6d4db0bf 1053 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1054 "GE", /* @tp_name@ */
d7ab1bab 1055 sizeof(ge_pyobj), /* @tp_basicsize@ */
1056 0, /* @tp_itemsize@ */
1057
1058 ge_pydealloc, /* @tp_dealloc@ */
1059 0, /* @tp_print@ */
1060 0, /* @tp_getattr@ */
1061 0, /* @tp_setattr@ */
1062 0, /* @tp_compare@ */
1063 0, /* @tp_repr@ */
c90f712e 1064 PYNUMBER(ge), /* @tp_as_number@ */
d7ab1bab 1065 0, /* @tp_as_sequence@ */
1066 0, /* @tp_as_mapping@ */
6d481bc6 1067 ge_pyhash, /* @tp_hash@ */
d7ab1bab 1068 0, /* @tp_call@ */
1069 ge_pystr, /* @tp_str@ */
1070 0, /* @tp_getattro@ */
1071 0, /* @tp_setattro@ */
1072 0, /* @tp_as_buffer@ */
1073 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1074 Py_TPFLAGS_CHECKTYPES |
1075 Py_TPFLAGS_BASETYPE,
1076
1077 /* @tp_doc@ */
d96c882e 1078 "Group elements, abstract base class.",
d7ab1bab 1079
1080 0, /* @tp_traverse@ */
1081 0, /* @tp_clear@ */
1082 ge_pyrichcompare, /* @tp_richcompare@ */
1083 0, /* @tp_weaklistoffset@ */
1084 0, /* @tp_iter@ */
963a6148 1085 0, /* @tp_iternext@ */
c90f712e 1086 PYMETHODS(ge), /* @tp_methods@ */
d7ab1bab 1087 0, /* @tp_members@ */
c90f712e 1088 PYGETSET(ge), /* @tp_getset@ */
d7ab1bab 1089 0, /* @tp_base@ */
1090 0, /* @tp_dict@ */
1091 0, /* @tp_descr_get@ */
1092 0, /* @tp_descr_set@ */
1093 0, /* @tp_dictoffset@ */
1094 0, /* @tp_init@ */
1095 PyType_GenericAlloc, /* @tp_alloc@ */
1096 abstract_pynew, /* @tp_new@ */
3aa33042 1097 0, /* @tp_free@ */
d7ab1bab 1098 0 /* @tp_is_gc@ */
1099};
1100
c90f712e 1101static const PyGetSetDef group_pygetset[] = {
d7ab1bab 1102#define GETSETNAME(op, name) g##op##_##name
1103 GET (noctets, "G.noctets -> size in octets of element")
1104 GET (nbits, "G.nbits -> size in bits of element")
1105 GET (i, "G.i -> group identity")
1106 GET (g, "G.g -> group generator")
1107 GET (r, "G.r -> group order")
1108 GET (h, "G.h -> group cofactor")
1109#undef GETSETNAME
1110 { 0 }
1111};
1112
c90f712e 1113static const PyMethodDef group_pymethods[] = {
d7ab1bab 1114#define METHNAME(name) gmeth_##name
d96c882e 1115 METH (mexp, "G.mexp([(X0, N0), (X1, N1), ...]) -> X0^N0 X1^N1 ...")
1df8d5fe 1116 KWMETH(checkgroup, "G.checkgroup([rng = rand]): check group is good")
a157093f 1117 SMTH (parse, "parse(STR) -> G, REST")
d7ab1bab 1118#undef METHNAME
1119 { 0 }
1120};
1121
1122static PyTypeObject group_pytype_skel = {
6d4db0bf 1123 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1124 "Group", /* @tp_name@ */
d7ab1bab 1125 sizeof(group_pyobj), /* @tp_basicsize@ */
1126 0, /* @tp_itemsize@ */
1127
1128 group_pydealloc, /* @tp_dealloc@ */
1129 0, /* @tp_print@ */
1130 0, /* @tp_getattr@ */
1131 0, /* @tp_setattr@ */
1132 0, /* @tp_compare@ */
1133 0, /* @tp_repr@ */
1134 0, /* @tp_as_number@ */
1135 0, /* @tp_as_sequence@ */
1136 0, /* @tp_as_mapping@ */
1137 0, /* @tp_hash@ */
1138 0, /* @tp_call@ */
1139 0, /* @tp_str@ */
1140 0, /* @tp_getattro@ */
1141 0, /* @tp_setattro@ */
1142 0, /* @tp_as_buffer@ */
1143 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1144 Py_TPFLAGS_BASETYPE,
1145
1146 /* @tp_doc@ */
d96c882e 1147 "Abstract base class for groups.",
d7ab1bab 1148
1149 0, /* @tp_traverse@ */
1150 0, /* @tp_clear@ */
1151 group_pyrichcompare, /* @tp_richcompare@ */
1152 0, /* @tp_weaklistoffset@ */
1153 0, /* @tp_iter@ */
963a6148 1154 0, /* @tp_iternext@ */
c90f712e 1155 PYMETHODS(group), /* @tp_methods@ */
d7ab1bab 1156 0, /* @tp_members@ */
c90f712e 1157 PYGETSET(group), /* @tp_getset@ */
d7ab1bab 1158 0, /* @tp_base@ */
1159 0, /* @tp_dict@ */
1160 0, /* @tp_descr_get@ */
1161 0, /* @tp_descr_set@ */
1162 0, /* @tp_dictoffset@ */
1163 0, /* @tp_init@ */
1164 PyType_GenericAlloc, /* @tp_alloc@ */
1165 abstract_pynew, /* @tp_new@ */
3aa33042 1166 0, /* @tp_free@ */
d7ab1bab 1167 0 /* @tp_is_gc@ */
1168};
1169
1170static PyObject *pgget_info(PyObject *me, void *hunoz)
1171{
1172 gprime_param dp;
1173 gctx_prime *gg = (gctx_prime *)GROUP_G(me);
1174 dp.p = MP_COPY(gg->mm.m);
1175 dp.q = MP_COPY(gg->g.r);
452714b5 1176 dp.g = mpmont_reduce(&gg->mm, MP_NEW, gg->gen.x);
d7ab1bab 1177 return (fginfo_pywrap(&dp, dhinfo_pytype));
1178}
1179
c90f712e 1180static const PyGetSetDef primegroup_pygetset[] = {
d7ab1bab 1181#define GETSETNAME(op, name) pg##op##_##name
1182 GET (info, "G.info -> information about the group")
1183#undef GETSETNAME
1184 { 0 }
1185};
1186
1187static PyObject *primegroup_pynew(PyTypeObject *ty,
1188 PyObject *arg, PyObject *kw)
1189{
1190 PyObject *i;
827f89d7 1191 static const char *const kwlist[] = { "info", 0 };
d7ab1bab 1192
827f89d7 1193 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O!:new", KWLIST,
d7ab1bab 1194 dhinfo_pytype, &i))
1195 return (0);
1196 return (group_dopywrap(ty, group_prime(FGINFO_DP(i))));
1197}
1198
1199static PyTypeObject primegroup_pytype_skel = {
6d4db0bf 1200 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1201 "PrimeGroup", /* @tp_name@ */
d7ab1bab 1202 sizeof(group_pyobj), /* @tp_basicsize@ */
1203 0, /* @tp_itemsize@ */
1204
1205 group_pydealloc, /* @tp_dealloc@ */
1206 0, /* @tp_print@ */
1207 0, /* @tp_getattr@ */
1208 0, /* @tp_setattr@ */
1209 0, /* @tp_compare@ */
1210 0, /* @tp_repr@ */
1211 0, /* @tp_as_number@ */
1212 0, /* @tp_as_sequence@ */
1213 0, /* @tp_as_mapping@ */
1214 0, /* @tp_hash@ */
1215 0, /* @tp_call@ */
1216 0, /* @tp_str@ */
1217 0, /* @tp_getattro@ */
1218 0, /* @tp_setattro@ */
1219 0, /* @tp_as_buffer@ */
1220 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1221 Py_TPFLAGS_BASETYPE,
1222
1223 /* @tp_doc@ */
d96c882e 1224 "PrimeGroup(INFO): subgroups of prime fields.",
d7ab1bab 1225
1226 0, /* @tp_traverse@ */
1227 0, /* @tp_clear@ */
1228 0, /* @tp_richcompare@ */
1229 0, /* @tp_weaklistoffset@ */
1230 0, /* @tp_iter@ */
963a6148 1231 0, /* @tp_iternext@ */
d7ab1bab 1232 0, /* @tp_methods@ */
1233 0, /* @tp_members@ */
c90f712e 1234 PYGETSET(primegroup), /* @tp_getset@ */
d7ab1bab 1235 0, /* @tp_base@ */
1236 0, /* @tp_dict@ */
1237 0, /* @tp_descr_get@ */
1238 0, /* @tp_descr_set@ */
1239 0, /* @tp_dictoffset@ */
1240 0, /* @tp_init@ */
1241 PyType_GenericAlloc, /* @tp_alloc@ */
1242 primegroup_pynew, /* @tp_new@ */
3aa33042 1243 0, /* @tp_free@ */
d7ab1bab 1244 0 /* @tp_is_gc@ */
1245};
1246
1247static PyObject *bgget_info(PyObject *me, void *hunoz)
1248{
1249 gbin_param dp;
1250 gctx_bin *gg = (gctx_bin *)GROUP_G(me);
1251 dp.p = MP_COPY(gg->r.p);
1252 dp.q = MP_COPY(gg->g.r);
452714b5 1253 dp.g = MP_COPY(gg->gen.x);
d7ab1bab 1254 return (fginfo_pywrap(&dp, bindhinfo_pytype));
1255}
1256
c90f712e 1257static const PyGetSetDef bingroup_pygetset[] = {
d7ab1bab 1258#define GETSETNAME(op, name) bg##op##_##name
1259 GET (info, "G.info -> information about the group")
1260#undef GETSETNAME
1261 { 0 }
1262};
1263
1264static PyObject *bingroup_pynew(PyTypeObject *ty,
1265 PyObject *arg, PyObject *kw)
1266{
1267 PyObject *i;
827f89d7 1268 static const char *const kwlist[] = { "info", 0 };
d7ab1bab 1269
827f89d7 1270 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O!:new", KWLIST,
d7ab1bab 1271 bindhinfo_pytype, &i))
1272 return (0);
1273 return (group_dopywrap(ty, group_binary(FGINFO_DP(i))));
1274}
1275
1276static PyTypeObject bingroup_pytype_skel = {
6d4db0bf 1277 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1278 "BinGroup", /* @tp_name@ */
d7ab1bab 1279 sizeof(group_pyobj), /* @tp_basicsize@ */
1280 0, /* @tp_itemsize@ */
1281
1282 group_pydealloc, /* @tp_dealloc@ */
1283 0, /* @tp_print@ */
1284 0, /* @tp_getattr@ */
1285 0, /* @tp_setattr@ */
1286 0, /* @tp_compare@ */
1287 0, /* @tp_repr@ */
1288 0, /* @tp_as_number@ */
1289 0, /* @tp_as_sequence@ */
1290 0, /* @tp_as_mapping@ */
1291 0, /* @tp_hash@ */
1292 0, /* @tp_call@ */
1293 0, /* @tp_str@ */
1294 0, /* @tp_getattro@ */
1295 0, /* @tp_setattro@ */
1296 0, /* @tp_as_buffer@ */
1297 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1298 Py_TPFLAGS_BASETYPE,
1299
1300 /* @tp_doc@ */
d96c882e 1301 "BinGroup(INFO): subgroups of binary fields.",
d7ab1bab 1302
1303 0, /* @tp_traverse@ */
1304 0, /* @tp_clear@ */
1305 0, /* @tp_richcompare@ */
1306 0, /* @tp_weaklistoffset@ */
1307 0, /* @tp_iter@ */
963a6148 1308 0, /* @tp_iternext@ */
d7ab1bab 1309 0, /* @tp_methods@ */
1310 0, /* @tp_members@ */
c90f712e 1311 PYGETSET(bingroup), /* @tp_getset@ */
d7ab1bab 1312 0, /* @tp_base@ */
1313 0, /* @tp_dict@ */
1314 0, /* @tp_descr_get@ */
1315 0, /* @tp_descr_set@ */
1316 0, /* @tp_dictoffset@ */
1317 0, /* @tp_init@ */
1318 PyType_GenericAlloc, /* @tp_alloc@ */
1319 bingroup_pynew, /* @tp_new@ */
3aa33042 1320 0, /* @tp_free@ */
d7ab1bab 1321 0 /* @tp_is_gc@ */
1322};
1323
1324static PyObject *egget_info(PyObject *me, void *hunoz)
1325{
1326 ec_info ei;
1327 gctx_ec *gg = (gctx_ec *)GROUP_G(me);
1328
1329 ecinfo_copy(&ei, &gg->ei);
1330 return (ecinfo_pywrap(&ei));
1331}
1332
c90f712e 1333static const PyGetSetDef ecgroup_pygetset[] = {
d7ab1bab 1334#define GETSETNAME(op, name) eg##op##_##name
1335 GET (info, "G.info -> information about the group")
1336#undef GETSETNAME
1337 { 0 }
1338};
1339
1340static PyObject *ecgroup_pynew(PyTypeObject *ty,
1341 PyObject *arg, PyObject *kw)
1342{
1343 PyObject *i;
1344 ec_info ei;
827f89d7 1345 static const char *const kwlist[] = { "info", 0 };
d7ab1bab 1346
827f89d7 1347 if (!PyArg_ParseTupleAndKeywords(arg, kw, "O!:new", KWLIST,
d7ab1bab 1348 ecinfo_pytype, &i))
1349 return (0);
1350 ecinfo_copy(&ei, ECINFO_EI(i));
1351 return (group_dopywrap(ty, group_ec(&ei)));
1352}
1353
1354static PyTypeObject ecgroup_pytype_skel = {
6d4db0bf 1355 PyObject_HEAD_INIT(0) 0, /* Header */
c461c9b3 1356 "ECGroup", /* @tp_name@ */
d7ab1bab 1357 sizeof(group_pyobj), /* @tp_basicsize@ */
1358 0, /* @tp_itemsize@ */
1359
1360 group_pydealloc, /* @tp_dealloc@ */
1361 0, /* @tp_print@ */
1362 0, /* @tp_getattr@ */
1363 0, /* @tp_setattr@ */
1364 0, /* @tp_compare@ */
1365 0, /* @tp_repr@ */
1366 0, /* @tp_as_number@ */
1367 0, /* @tp_as_sequence@ */
1368 0, /* @tp_as_mapping@ */
1369 0, /* @tp_hash@ */
1370 0, /* @tp_call@ */
1371 0, /* @tp_str@ */
1372 0, /* @tp_getattro@ */
1373 0, /* @tp_setattro@ */
1374 0, /* @tp_as_buffer@ */
1375 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1376 Py_TPFLAGS_BASETYPE,
1377
1378 /* @tp_doc@ */
d96c882e 1379 "ECGroup(INFO): elliptic curve groups.",
d7ab1bab 1380
1381 0, /* @tp_traverse@ */
1382 0, /* @tp_clear@ */
1383 0, /* @tp_richcompare@ */
1384 0, /* @tp_weaklistoffset@ */
1385 0, /* @tp_iter@ */
963a6148 1386 0, /* @tp_iternext@ */
d7ab1bab 1387 0, /* @tp_methods@ */
1388 0, /* @tp_members@ */
c90f712e 1389 PYGETSET(ecgroup), /* @tp_getset@ */
d7ab1bab 1390 0, /* @tp_base@ */
1391 0, /* @tp_dict@ */
1392 0, /* @tp_descr_get@ */
1393 0, /* @tp_descr_set@ */
1394 0, /* @tp_dictoffset@ */
1395 0, /* @tp_init@ */
1396 PyType_GenericAlloc, /* @tp_alloc@ */
1397 ecgroup_pynew, /* @tp_new@ */
3aa33042 1398 0, /* @tp_free@ */
d7ab1bab 1399 0 /* @tp_is_gc@ */
1400};
1401
1402/*----- Global stuff ------------------------------------------------------*/
1403
d7ab1bab 1404void group_pyinit(void)
1405{
1406 INITTYPE(fginfo, root);
1407 INITTYPE(dhinfo, fginfo);
1408 INITTYPE(bindhinfo, dhinfo);
1409 INITTYPE(ge, root);
1410 INITTYPE(group, type);
1411 INITTYPE(primegroup, group);
1412 INITTYPE(bingroup, group);
1413 INITTYPE(ecgroup, group);
d7ab1bab 1414}
1415
1416void group_pyinsert(PyObject *mod)
1417{
1418 INSERT("FGInfo", fginfo_pytype);
1419 INSERT("DHInfo", dhinfo_pytype);
1420 INSERT("BinDHInfo", bindhinfo_pytype);
1421 INSERT("GE", ge_pytype);
1422 INSERT("Group", group_pytype);
1423 INSERT("PrimeGroup", primegroup_pytype);
1424 INSERT("BinGroup", bingroup_pytype);
1425 INSERT("ECGroup", ecgroup_pytype);
1426 INSERT("_pgroups", namedgroups(ptab, &npgroups));
1427 INSERT("_bingroups", namedgroups(bintab, &nbingroups));
1428}
1429
1430/*----- That's all, folks -------------------------------------------------*/
Catacomb cryptographic library -- Python bindings