| 1 | /* -*-c-*- |
| 2 | * |
| 3 | * $Id$ |
| 4 | * |
| 5 | * Abstract group inteface |
| 6 | * |
| 7 | * (c) 2004 Straylight/Edgeware |
| 8 | */ |
| 9 | |
| 10 | /*----- Licensing notice --------------------------------------------------* |
| 11 | * |
| 12 | * This file is part of the Python interface to Catacomb. |
| 13 | * |
| 14 | * Catacomb/Python is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU General Public License as published by |
| 16 | * the Free Software Foundation; either version 2 of the License, or |
| 17 | * (at your option) any later version. |
| 18 | * |
| 19 | * Catacomb/Python is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | * GNU General Public License for more details. |
| 23 | * |
| 24 | * You should have received a copy of the GNU General Public License |
| 25 | * along with Catacomb/Python; if not, write to the Free Software Foundation, |
| 26 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 27 | */ |
| 28 | |
| 29 | /*----- Header files ------------------------------------------------------*/ |
| 30 | |
| 31 | #include "catacomb-python.h" |
| 32 | |
| 33 | /*----- DH and binary group infos -----------------------------------------*/ |
| 34 | |
| 35 | PyObject *fginfo_pywrap(gprime_param *dp, PyTypeObject *ty) |
| 36 | { |
| 37 | fginfo_pyobj *z = PyObject_New(fginfo_pyobj, ty); |
| 38 | z->dp = *dp; |
| 39 | return ((PyObject *)z); |
| 40 | } |
| 41 | |
| 42 | static PyObject *fginfo_pynew(PyTypeObject *ty, |
| 43 | PyObject *arg, PyObject *kw) |
| 44 | { |
| 45 | char *kwlist[] = { "p", "r", "g", 0 }; |
| 46 | gprime_param dp = { 0 }; |
| 47 | fginfo_pyobj *z = 0; |
| 48 | |
| 49 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&O&O&:new", kwlist, |
| 50 | convmp, &dp.p, |
| 51 | convmp, &dp.q, |
| 52 | convmp, &dp.g)) |
| 53 | goto end; |
| 54 | z = PyObject_New(fginfo_pyobj, ty); |
| 55 | z->dp = dp; |
| 56 | return ((PyObject *)z); |
| 57 | end: |
| 58 | mp_drop(dp.p); |
| 59 | mp_drop(dp.q); |
| 60 | mp_drop(dp.g); |
| 61 | return (0); |
| 62 | } |
| 63 | |
| 64 | static PyObject *figet_r(PyObject *me, void *hunoz) |
| 65 | { return mp_pywrap(MP_COPY(FGINFO_DP(me)->q)); } |
| 66 | |
| 67 | static PyObject *diget_p(PyObject *me, void *hunoz) |
| 68 | { return mp_pywrap(MP_COPY(FGINFO_DP(me)->p)); } |
| 69 | |
| 70 | static PyObject *diget_g(PyObject *me, void *hunoz) |
| 71 | { return mp_pywrap(MP_COPY(FGINFO_DP(me)->g)); } |
| 72 | |
| 73 | static PyObject *biget_p(PyObject *me, void *hunoz) |
| 74 | { return gf_pywrap(MP_COPY(FGINFO_DP(me)->p)); } |
| 75 | |
| 76 | static PyObject *biget_m(PyObject *me, void *hunoz) |
| 77 | { return PyInt_FromLong(mp_octets(FGINFO_DP(me)->p) - 1); } |
| 78 | |
| 79 | static PyObject *biget_g(PyObject *me, void *hunoz) |
| 80 | { return gf_pywrap(MP_COPY(FGINFO_DP(me)->g)); } |
| 81 | |
| 82 | static void fginfo_pydealloc(PyObject *me) |
| 83 | { |
| 84 | mp_drop(FGINFO_DP(me)->p); |
| 85 | mp_drop(FGINFO_DP(me)->q); |
| 86 | mp_drop(FGINFO_DP(me)->g); |
| 87 | FREEOBJ(me); |
| 88 | } |
| 89 | |
| 90 | static PyObject *meth__DHInfo_generate(PyObject *me, |
| 91 | PyObject *arg, PyObject *kw) |
| 92 | { |
| 93 | dh_param dp; |
| 94 | unsigned ql = 0, pl; |
| 95 | unsigned steps = 0; |
| 96 | grand *r = &rand_global; |
| 97 | pgev evt = { 0 }; |
| 98 | char *kwlist[] = |
| 99 | { "class", "pbits", "qbits", "event", "rng", "nsteps", 0 }; |
| 100 | PyObject *rc = 0; |
| 101 | |
| 102 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO&|O&O&O&O&:generate", kwlist, |
| 103 | &me, convuint, &pl, convuint, &ql, |
| 104 | convpgev, &evt, convgrand, &r, |
| 105 | convuint, &steps)) |
| 106 | goto end; |
| 107 | if (dh_gen(&dp, ql, pl, steps, r, evt.proc, evt.ctx)) |
| 108 | PGENERR; |
| 109 | rc = fginfo_pywrap(&dp, dhinfo_pytype); |
| 110 | end: |
| 111 | droppgev(&evt); |
| 112 | return (rc); |
| 113 | } |
| 114 | |
| 115 | static PyObject *meth__DHInfo_genlimlee(PyObject *me, |
| 116 | PyObject *arg, PyObject *kw) |
| 117 | { |
| 118 | dh_param dp; |
| 119 | unsigned ql, pl; |
| 120 | unsigned steps = 0; |
| 121 | grand *r = &rand_global; |
| 122 | pgev oe = { 0 }, ie = { 0 }; |
| 123 | int subgroupp = 1; |
| 124 | unsigned f = 0; |
| 125 | char *kwlist[] = { "class", "pbits", "qbits", "event", "ievent", |
| 126 | "rng", "nsteps", "subgroupp", 0 }; |
| 127 | size_t i, nf; |
| 128 | mp **v = 0; |
| 129 | PyObject *rc = 0, *vec = 0; |
| 130 | |
| 131 | if (!PyArg_ParseTupleAndKeywords(arg, kw, |
| 132 | "OO&O&|O&O&O&O&O&:genlimlee", kwlist, |
| 133 | &me, convuint, &pl, convuint, &ql, |
| 134 | convpgev, &oe, convpgev, &ie, |
| 135 | convgrand, &r, convuint, &steps, |
| 136 | convbool, &subgroupp)) |
| 137 | goto end; |
| 138 | if (subgroupp) f |= DH_SUBGROUP; |
| 139 | if (dh_limlee(&dp, ql, pl, f, steps, r, |
| 140 | oe.proc, oe.ctx, ie.proc, ie.ctx, &nf, &v)) |
| 141 | PGENERR; |
| 142 | vec = PyList_New(nf); |
| 143 | for (i = 0; i < nf; i++) |
| 144 | PyList_SetItem(vec, i, mp_pywrap(v[i])); |
| 145 | xfree(v); |
| 146 | rc = Py_BuildValue("(NN)", fginfo_pywrap(&dp, dhinfo_pytype), vec); |
| 147 | end: |
| 148 | droppgev(&oe); droppgev(&ie); |
| 149 | return (rc); |
| 150 | } |
| 151 | |
| 152 | static PyObject *meth__DHInfo_genkcdsa(PyObject *me, |
| 153 | PyObject *arg, PyObject *kw) |
| 154 | { |
| 155 | dh_param dp; |
| 156 | unsigned ql, pl; |
| 157 | unsigned steps = 0; |
| 158 | grand *r = &rand_global; |
| 159 | pgev evt = { 0 }; |
| 160 | char *kwlist[] = { "class", "pbits", "qbits", |
| 161 | "event", "rng", "nsteps", 0 }; |
| 162 | mp *v = MP_NEW; |
| 163 | PyObject *rc = 0; |
| 164 | |
| 165 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO&O&|O&O&O&:genkcdsa", kwlist, |
| 166 | &me, convuint, &pl, convuint, &ql, |
| 167 | convpgev, &evt, convgrand, &r, |
| 168 | convuint, &steps)) |
| 169 | goto end; |
| 170 | if (dh_kcdsagen(&dp, ql, pl, 0, steps, r, evt.proc, evt.ctx)) |
| 171 | PGENERR; |
| 172 | mp_div(&v, 0, dp.p, dp.q); |
| 173 | v = mp_lsr(v, v, 1); |
| 174 | rc = Py_BuildValue("(NN)", fginfo_pywrap(&dp, dhinfo_pytype), |
| 175 | mp_pywrap(v)); |
| 176 | end: |
| 177 | droppgev(&evt); |
| 178 | return (rc); |
| 179 | } |
| 180 | |
| 181 | static PyObject *meth__DHInfo_gendsa(PyObject *me, |
| 182 | PyObject *arg, PyObject *kw) |
| 183 | { |
| 184 | dsa_param dp; |
| 185 | unsigned ql, pl; |
| 186 | unsigned steps = 0; |
| 187 | dsa_seed ds; |
| 188 | char *k; |
| 189 | int ksz; |
| 190 | pgev evt = { 0 }; |
| 191 | char *kwlist[] = |
| 192 | { "class", "pbits", "qbits", "seed", "event", "nsteps", 0 }; |
| 193 | PyObject *rc = 0; |
| 194 | |
| 195 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO&O&s#|O&O&:gendsa", kwlist, |
| 196 | &me, convuint, &pl, convuint, &ql, |
| 197 | &k, &ksz, convpgev, &evt, |
| 198 | convuint, &steps)) |
| 199 | goto end; |
| 200 | if (dsa_gen(&dp, ql, pl, steps, k, ksz, &ds, evt.proc, evt.ctx)) |
| 201 | PGENERR; |
| 202 | rc = Py_BuildValue("(NNl)", fginfo_pywrap(&dp, dhinfo_pytype), |
| 203 | bytestring_pywrap(ds.p, ds.sz), (long)ds.count); |
| 204 | xfree(ds.p); |
| 205 | end: |
| 206 | droppgev(&evt); |
| 207 | return (rc); |
| 208 | } |
| 209 | |
| 210 | static int npgroups = -1, nbingroups = -1; |
| 211 | |
| 212 | static PyObject *namedgroups(const pentry *pp, int *ne) |
| 213 | { |
| 214 | int i, j; |
| 215 | const char *p; |
| 216 | PyObject *d, *c; |
| 217 | |
| 218 | d = PyDict_New(); |
| 219 | for (i = 0; pp[i].name; i++) { |
| 220 | p = pp[i].name; |
| 221 | for (j = 0; j < i; j++) { |
| 222 | if (pp[i].data == pp[j].data) { |
| 223 | c = PyDict_GetItemString(d, (/*unconst*/ char *)pp[j].name); |
| 224 | Py_INCREF(c); |
| 225 | goto found; |
| 226 | } |
| 227 | } |
| 228 | c = PyInt_FromLong(i); |
| 229 | found: |
| 230 | PyDict_SetItemString(d, (/*unconst*/ char *)pp[i].name, c); |
| 231 | Py_DECREF(c); |
| 232 | } |
| 233 | *ne = i; |
| 234 | return (d); |
| 235 | } |
| 236 | |
| 237 | static PyObject *meth__groupn(PyObject *me, PyObject *arg, |
| 238 | PyTypeObject *ty, const pentry *pp, int ne) |
| 239 | { |
| 240 | int i; |
| 241 | gprime_param gp; |
| 242 | PyObject *rc = 0; |
| 243 | |
| 244 | if (!PyArg_ParseTuple(arg, "Oi:_groupn", &me, &i)) goto end; |
| 245 | if (i < 0 || i >= ne) VALERR("group index out of range"); |
| 246 | dh_infofromdata(&gp, pp[i].data); |
| 247 | rc = fginfo_pywrap(&gp, ty); |
| 248 | end: |
| 249 | return (rc); |
| 250 | } |
| 251 | |
| 252 | static PyObject *meth__DHInfo__groupn(PyObject *me, PyObject *arg) |
| 253 | { return (meth__groupn(me, arg, dhinfo_pytype, ptab, npgroups)); } |
| 254 | |
| 255 | static PyObject *meth__BinDHInfo__groupn(PyObject *me, PyObject *arg) |
| 256 | { return (meth__groupn(me, arg, bindhinfo_pytype, bintab, nbingroups)); } |
| 257 | |
| 258 | static PyObject *meth__parse(PyObject *me, PyObject *arg, PyTypeObject *ty, |
| 259 | int (*parse)(qd_parse *, gprime_param *)) |
| 260 | { |
| 261 | qd_parse qd; |
| 262 | char *p; |
| 263 | gprime_param gp; |
| 264 | PyObject *rc = 0; |
| 265 | |
| 266 | if (!PyArg_ParseTuple(arg, "Os:parse", &me, &p)) goto end; |
| 267 | qd.p = p; |
| 268 | qd.e = 0; |
| 269 | if (parse(&qd, &gp)) SYNERR(qd.e); |
| 270 | rc = fginfo_pywrap(&gp, ty); |
| 271 | end: |
| 272 | return (rc); |
| 273 | } |
| 274 | |
| 275 | static PyObject *meth__DHInfo_parse(PyObject *me, PyObject *arg) |
| 276 | { return (meth__parse(me, arg, dhinfo_pytype, dh_parse)); } |
| 277 | |
| 278 | static PyObject *meth__BinDHInfo_parse(PyObject *me, PyObject *arg) |
| 279 | { return (meth__parse(me, arg, bindhinfo_pytype, dhbin_parse)); } |
| 280 | |
| 281 | static PyGetSetDef fginfo_pygetset[] = { |
| 282 | #define GETSETNAME(op, name) fi##op##_##name |
| 283 | GET (r, "I.r -> group order") |
| 284 | #undef GETSETNAME |
| 285 | { 0 } |
| 286 | }; |
| 287 | |
| 288 | static PyGetSetDef dhinfo_pygetset[] = { |
| 289 | #define GETSETNAME(op, name) di##op##_##name |
| 290 | GET (p, "I.p -> prime") |
| 291 | GET (g, "I.g -> generator") |
| 292 | #undef GETSETNAME |
| 293 | { 0 } |
| 294 | }; |
| 295 | |
| 296 | static PyGetSetDef bindhinfo_pygetset[] = { |
| 297 | #define GETSETNAME(op, name) bi##op##_##name |
| 298 | GET (p, "I.p -> irreducible polynomial") |
| 299 | GET (m, "I.m -> degree of polynomial") |
| 300 | GET (g, "I.g -> generator") |
| 301 | #undef GETSETNAME |
| 302 | { 0 } |
| 303 | }; |
| 304 | |
| 305 | static PyTypeObject fginfo_pytype_skel = { |
| 306 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 307 | "catacomb.FGInfo", /* @tp_name@ */ |
| 308 | sizeof(fginfo_pyobj), /* @tp_basicsize@ */ |
| 309 | 0, /* @tp_itemsize@ */ |
| 310 | |
| 311 | fginfo_pydealloc, /* @tp_dealloc@ */ |
| 312 | 0, /* @tp_print@ */ |
| 313 | 0, /* @tp_getattr@ */ |
| 314 | 0, /* @tp_setattr@ */ |
| 315 | 0, /* @tp_compare@ */ |
| 316 | 0, /* @tp_repr@ */ |
| 317 | 0, /* @tp_as_number@ */ |
| 318 | 0, /* @tp_as_sequence@ */ |
| 319 | 0, /* @tp_as_mapping@ */ |
| 320 | 0, /* @tp_hash@ */ |
| 321 | 0, /* @tp_call@ */ |
| 322 | 0, /* @tp_str@ */ |
| 323 | 0, /* @tp_getattro@ */ |
| 324 | 0, /* @tp_setattro@ */ |
| 325 | 0, /* @tp_as_buffer@ */ |
| 326 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 327 | Py_TPFLAGS_BASETYPE, |
| 328 | |
| 329 | /* @tp_doc@ */ |
| 330 | "Abstract base class for field-group information objects.", |
| 331 | |
| 332 | 0, /* @tp_traverse@ */ |
| 333 | 0, /* @tp_clear@ */ |
| 334 | 0, /* @tp_richcompare@ */ |
| 335 | 0, /* @tp_weaklistoffset@ */ |
| 336 | 0, /* @tp_iter@ */ |
| 337 | 0, /* @tp_iternext@ */ |
| 338 | 0, /* @tp_methods@ */ |
| 339 | 0, /* @tp_members@ */ |
| 340 | fginfo_pygetset, /* @tp_getset@ */ |
| 341 | 0, /* @tp_base@ */ |
| 342 | 0, /* @tp_dict@ */ |
| 343 | 0, /* @tp_descr_get@ */ |
| 344 | 0, /* @tp_descr_set@ */ |
| 345 | 0, /* @tp_dictoffset@ */ |
| 346 | 0, /* @tp_init@ */ |
| 347 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 348 | abstract_pynew, /* @tp_new@ */ |
| 349 | 0, /* @tp_free@ */ |
| 350 | 0 /* @tp_is_gc@ */ |
| 351 | }; |
| 352 | |
| 353 | static PyTypeObject dhinfo_pytype_skel = { |
| 354 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 355 | "catacomb.DHInfo", /* @tp_name@ */ |
| 356 | sizeof(fginfo_pyobj), /* @tp_basicsize@ */ |
| 357 | 0, /* @tp_itemsize@ */ |
| 358 | |
| 359 | fginfo_pydealloc, /* @tp_dealloc@ */ |
| 360 | 0, /* @tp_print@ */ |
| 361 | 0, /* @tp_getattr@ */ |
| 362 | 0, /* @tp_setattr@ */ |
| 363 | 0, /* @tp_compare@ */ |
| 364 | 0, /* @tp_repr@ */ |
| 365 | 0, /* @tp_as_number@ */ |
| 366 | 0, /* @tp_as_sequence@ */ |
| 367 | 0, /* @tp_as_mapping@ */ |
| 368 | 0, /* @tp_hash@ */ |
| 369 | 0, /* @tp_call@ */ |
| 370 | 0, /* @tp_str@ */ |
| 371 | 0, /* @tp_getattro@ */ |
| 372 | 0, /* @tp_setattro@ */ |
| 373 | 0, /* @tp_as_buffer@ */ |
| 374 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 375 | Py_TPFLAGS_BASETYPE, |
| 376 | |
| 377 | /* @tp_doc@ */ |
| 378 | "Standard (integer) Diffie-Hellman group information.", |
| 379 | |
| 380 | 0, /* @tp_traverse@ */ |
| 381 | 0, /* @tp_clear@ */ |
| 382 | 0, /* @tp_richcompare@ */ |
| 383 | 0, /* @tp_weaklistoffset@ */ |
| 384 | 0, /* @tp_iter@ */ |
| 385 | 0, /* @tp_iternext@ */ |
| 386 | 0, /* @tp_methods@ */ |
| 387 | 0, /* @tp_members@ */ |
| 388 | dhinfo_pygetset, /* @tp_getset@ */ |
| 389 | 0, /* @tp_base@ */ |
| 390 | 0, /* @tp_dict@ */ |
| 391 | 0, /* @tp_descr_get@ */ |
| 392 | 0, /* @tp_descr_set@ */ |
| 393 | 0, /* @tp_dictoffset@ */ |
| 394 | 0, /* @tp_init@ */ |
| 395 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 396 | fginfo_pynew, /* @tp_new@ */ |
| 397 | 0, /* @tp_free@ */ |
| 398 | 0 /* @tp_is_gc@ */ |
| 399 | }; |
| 400 | |
| 401 | static PyTypeObject bindhinfo_pytype_skel = { |
| 402 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 403 | "catacomb.BinDHInfo", /* @tp_name@ */ |
| 404 | sizeof(fginfo_pyobj), /* @tp_basicsize@ */ |
| 405 | 0, /* @tp_itemsize@ */ |
| 406 | |
| 407 | fginfo_pydealloc, /* @tp_dealloc@ */ |
| 408 | 0, /* @tp_print@ */ |
| 409 | 0, /* @tp_getattr@ */ |
| 410 | 0, /* @tp_setattr@ */ |
| 411 | 0, /* @tp_compare@ */ |
| 412 | 0, /* @tp_repr@ */ |
| 413 | 0, /* @tp_as_number@ */ |
| 414 | 0, /* @tp_as_sequence@ */ |
| 415 | 0, /* @tp_as_mapping@ */ |
| 416 | 0, /* @tp_hash@ */ |
| 417 | 0, /* @tp_call@ */ |
| 418 | 0, /* @tp_str@ */ |
| 419 | 0, /* @tp_getattro@ */ |
| 420 | 0, /* @tp_setattro@ */ |
| 421 | 0, /* @tp_as_buffer@ */ |
| 422 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 423 | Py_TPFLAGS_BASETYPE, |
| 424 | |
| 425 | /* @tp_doc@ */ |
| 426 | "Binary-field Diffie-Hellman group information.", |
| 427 | |
| 428 | 0, /* @tp_traverse@ */ |
| 429 | 0, /* @tp_clear@ */ |
| 430 | 0, /* @tp_richcompare@ */ |
| 431 | 0, /* @tp_weaklistoffset@ */ |
| 432 | 0, /* @tp_iter@ */ |
| 433 | 0, /* @tp_iternext@ */ |
| 434 | 0, /* @tp_methods@ */ |
| 435 | 0, /* @tp_members@ */ |
| 436 | bindhinfo_pygetset, /* @tp_getset@ */ |
| 437 | 0, /* @tp_base@ */ |
| 438 | 0, /* @tp_dict@ */ |
| 439 | 0, /* @tp_descr_get@ */ |
| 440 | 0, /* @tp_descr_set@ */ |
| 441 | 0, /* @tp_dictoffset@ */ |
| 442 | 0, /* @tp_init@ */ |
| 443 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 444 | fginfo_pynew, /* @tp_new@ */ |
| 445 | 0, /* @tp_free@ */ |
| 446 | 0 /* @tp_is_gc@ */ |
| 447 | }; |
| 448 | |
| 449 | /*----- General utilities -------------------------------------------------*/ |
| 450 | |
| 451 | PyTypeObject *ge_pytype, *group_pytype; |
| 452 | PyTypeObject *primegroup_pytype, *bingroup_pytype, *ecgroup_pytype; |
| 453 | |
| 454 | group *group_copy(group *g) |
| 455 | { |
| 456 | if (strcmp(G_NAME(g), "prime") == 0) { |
| 457 | gctx_prime *gc = (gctx_prime *)g; |
| 458 | gprime_param gp; |
| 459 | gp.g = G_TOINT(g, MP_NEW, g->g); |
| 460 | gp.p = gc->mm.m; |
| 461 | gp.q = gc->g.r; |
| 462 | g = group_prime(&gp); |
| 463 | MP_DROP(gp.g); |
| 464 | } else if (strcmp(G_NAME(g), "bin") == 0) { |
| 465 | gctx_bin *gc = (gctx_bin *)g; |
| 466 | gbin_param gb; |
| 467 | gb.g = G_TOINT(g, MP_NEW, g->g); |
| 468 | gb.p = gc->r.p; |
| 469 | gb.q = gc->g.r; |
| 470 | g = group_binary(&gb); |
| 471 | MP_DROP(gb.g); |
| 472 | } else if (strcmp(G_NAME(g), "ec") == 0) { |
| 473 | gctx_ec *gc = (gctx_ec *)g; |
| 474 | ec_info ei; |
| 475 | if ((ei.c = eccurve_copy(gc->ei.c)) == 0) |
| 476 | return (0); |
| 477 | EC_CREATE(&ei.g); |
| 478 | EC_COPY(&ei.g, &gc->ei.g); |
| 479 | ei.r = MP_COPY(gc->ei.r); |
| 480 | ei.h = MP_COPY(gc->ei.h); |
| 481 | g = group_ec(&ei); |
| 482 | } else |
| 483 | g = 0; |
| 484 | return (g); |
| 485 | } |
| 486 | |
| 487 | PyObject *ge_pywrap(PyObject *gobj, ge *x) |
| 488 | { |
| 489 | ge_pyobj *z = PyObject_New(ge_pyobj, (PyTypeObject *)gobj); |
| 490 | z->x = x; |
| 491 | z->g = GROUP_G(gobj); |
| 492 | Py_INCREF(gobj); |
| 493 | return ((PyObject *)z); |
| 494 | } |
| 495 | |
| 496 | static PyObject *ge_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 497 | { |
| 498 | char *kwlist[] = { "x", 0 }; |
| 499 | PyObject *x; |
| 500 | group *g; |
| 501 | ec p = EC_INIT; |
| 502 | mp *y = 0; |
| 503 | ge *xx = 0; |
| 504 | mptext_stringctx sc; |
| 505 | |
| 506 | g = GROUP_G(ty); |
| 507 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O:new", kwlist, &x)) goto end; |
| 508 | xx = G_CREATE(g); |
| 509 | if (ECPT_PYCHECK(x)) { |
| 510 | getecptout(&p, x); |
| 511 | if (G_FROMEC(g, xx, &p)) |
| 512 | TYERR("can't convert from elliptic curve point"); |
| 513 | EC_DESTROY(&p); |
| 514 | } else if ((y = tomp(x)) != 0) { |
| 515 | if (G_FROMINT(g, xx, y)) |
| 516 | TYERR("can't convert from integer"); |
| 517 | MP_DROP(y); |
| 518 | } else if (PyString_Check(x)) { |
| 519 | sc.buf = PyString_AS_STRING(x); |
| 520 | sc.lim = sc.buf + PyString_GET_SIZE(x); |
| 521 | if (G_READ(g, xx, &mptext_stringops, &sc) || sc.buf < sc.lim) |
| 522 | SYNERR("malformed group element string"); |
| 523 | } else |
| 524 | TYERR("can't convert to group element"); |
| 525 | return (ge_pywrap((PyObject *)ty, xx)); |
| 526 | end: |
| 527 | mp_drop(y); |
| 528 | EC_DESTROY(&p); |
| 529 | if (xx) G_DESTROY(g, xx); |
| 530 | return (0); |
| 531 | } |
| 532 | |
| 533 | static PyObject *group_dopywrap(PyTypeObject *ty, group *g) |
| 534 | { |
| 535 | group_pyobj *gobj = newtype(ty, 0, g->ops->name); |
| 536 | gobj->g = g; |
| 537 | gobj->ty.ht_type.tp_basicsize = sizeof(ge_pyobj); |
| 538 | gobj->ty.ht_type.tp_base = ge_pytype; |
| 539 | Py_INCREF(group_pytype); |
| 540 | gobj->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
| 541 | Py_TPFLAGS_BASETYPE | |
| 542 | Py_TPFLAGS_CHECKTYPES | |
| 543 | Py_TPFLAGS_HEAPTYPE); |
| 544 | gobj->ty.ht_type.tp_alloc = PyType_GenericAlloc; |
| 545 | gobj->ty.ht_type.tp_free = 0; |
| 546 | gobj->ty.ht_type.tp_new = ge_pynew; |
| 547 | PyType_Ready(&gobj->ty.ht_type); |
| 548 | return ((PyObject *)gobj); |
| 549 | } |
| 550 | |
| 551 | PyObject *group_pywrap(group *g) |
| 552 | { |
| 553 | PyTypeObject *ty; |
| 554 | |
| 555 | if (strcmp(G_NAME(g), "prime") == 0) ty = primegroup_pytype; |
| 556 | else if (strcmp(G_NAME(g), "bin") == 0) ty = bingroup_pytype; |
| 557 | else if (strcmp(G_NAME(g), "ec") == 0) ty = ecgroup_pytype; |
| 558 | else abort(); |
| 559 | return (group_dopywrap(ty, g)); |
| 560 | } |
| 561 | |
| 562 | /*----- Group elements ----------------------------------------------------*/ |
| 563 | |
| 564 | #define BINOP(name) \ |
| 565 | static PyObject *ge_py##name(PyObject *x, PyObject *y) \ |
| 566 | { \ |
| 567 | ge *z; \ |
| 568 | group *g; \ |
| 569 | if (!GE_PYCHECK(x) || !GE_PYCHECK(y) || \ |
| 570 | (GE_G(x) != GE_G(y) && !group_samep(GE_G(x), GE_G(y)))) \ |
| 571 | RETURN_NOTIMPL; \ |
| 572 | g = GE_G(x); \ |
| 573 | z = G_CREATE(g); \ |
| 574 | g->ops->name(g, z, GE_X(x), GE_X(y)); \ |
| 575 | return (ge_pywrap(GE_GOBJ(x), z)); \ |
| 576 | } |
| 577 | BINOP(mul) |
| 578 | BINOP(div) |
| 579 | #undef BINOP |
| 580 | |
| 581 | #define UNOP(name) \ |
| 582 | static PyObject *gemeth_##name(PyObject *me, PyObject *arg) \ |
| 583 | { \ |
| 584 | group *g; \ |
| 585 | ge *z; \ |
| 586 | if (!PyArg_ParseTuple(arg, ":" #name)) return (0); \ |
| 587 | g = GE_G(me); \ |
| 588 | z = G_CREATE(g); \ |
| 589 | g->ops->name(g, z, GE_X(me)); \ |
| 590 | return (ge_pywrap(GE_GOBJ(me), z)); \ |
| 591 | } |
| 592 | UNOP(sqr) |
| 593 | UNOP(inv) |
| 594 | #undef UNOP |
| 595 | |
| 596 | static PyObject *ge_pyexp(PyObject *x, PyObject *n, PyObject *m) |
| 597 | { |
| 598 | mp *nn; |
| 599 | ge *z; |
| 600 | |
| 601 | if (m != Py_None || !GE_PYCHECK(x) || (nn = getmp(n)) == 0) |
| 602 | RETURN_NOTIMPL; |
| 603 | z = G_CREATE(GE_G(x)); |
| 604 | G_EXP(GE_G(x), z, GE_X(x), nn); |
| 605 | MP_DROP(nn); |
| 606 | return (ge_pywrap(GE_GOBJ(x), z)); |
| 607 | } |
| 608 | |
| 609 | static void ge_pydealloc(PyObject *me) |
| 610 | { |
| 611 | G_DESTROY(GE_G(me), GE_X(me)); |
| 612 | Py_DECREF(GE_GOBJ(me)); |
| 613 | FREEOBJ(me); |
| 614 | } |
| 615 | |
| 616 | static void group_pydealloc(PyObject *me) |
| 617 | { |
| 618 | G_DESTROYGROUP(GROUP_G(me)); |
| 619 | PyType_Type.tp_dealloc(me); |
| 620 | } |
| 621 | |
| 622 | static PyObject *gmexp_id(PyObject *me) |
| 623 | { |
| 624 | group *g = GROUP_G(me); ge *x = G_CREATE(g); |
| 625 | G_COPY(g, x, g->i); return (ge_pywrap(me, x)); |
| 626 | } |
| 627 | |
| 628 | static int gmexp_fill(void *pp, PyObject *me, PyObject *x, PyObject *m) |
| 629 | { |
| 630 | group_expfactor *f = pp; |
| 631 | |
| 632 | if (!GE_PYCHECK(x) || GE_G(x) != GROUP_G(me) || (f->exp = getmp(m)) == 0) |
| 633 | return (-1); |
| 634 | f->base = GE_X(x); |
| 635 | return (0); |
| 636 | } |
| 637 | |
| 638 | static PyObject *ge_pyrichcompare(PyObject *x, PyObject *y, int op) |
| 639 | { |
| 640 | int b; |
| 641 | PyObject *rc = 0; |
| 642 | |
| 643 | if (!GE_PYCHECK(x) || !GE_PYCHECK(y) || |
| 644 | (GE_G(x) != GE_G(y) && !group_samep(GE_G(x), GE_G(y)))) |
| 645 | RETURN_NOTIMPL; |
| 646 | switch (op) { |
| 647 | case Py_EQ: b = G_EQ(GE_G(x), GE_X(x), GE_X(y)); break; |
| 648 | case Py_NE: b = !G_EQ(GE_G(x), GE_X(x), GE_X(y)); break; |
| 649 | default: TYERR("group elements are unordered"); |
| 650 | } |
| 651 | rc = getbool(b); |
| 652 | end: |
| 653 | return (rc); |
| 654 | } |
| 655 | |
| 656 | static PyObject *gemeth_check(PyObject *me, PyObject *arg) |
| 657 | { |
| 658 | if (!PyArg_ParseTuple(arg, ":check")) goto end; |
| 659 | if (group_check(GE_G(me), GE_X(me))) VALERR("bad group element"); |
| 660 | RETURN_OBJ(me); |
| 661 | end: |
| 662 | return (0); |
| 663 | } |
| 664 | |
| 665 | static int ge_pynonzerop(PyObject *x) |
| 666 | { return (!G_IDENTP(GE_G(x), GE_X(x))); } |
| 667 | |
| 668 | static PyObject *ge_pystr(PyObject *me) |
| 669 | { |
| 670 | dstr d = DSTR_INIT; |
| 671 | PyObject *rc; |
| 672 | |
| 673 | group_writedstr(GE_G(me), GE_X(me), &d); |
| 674 | rc = PyString_FromStringAndSize(d.buf, d.len); |
| 675 | DDESTROY(&d); |
| 676 | return (rc); |
| 677 | } |
| 678 | |
| 679 | static PyObject *ge_pylong(PyObject *me) |
| 680 | { |
| 681 | mp *x = 0; |
| 682 | PyObject *rc = 0; |
| 683 | |
| 684 | if ((x = G_TOINT(GE_G(me), MP_NEW, GE_X(me))) == 0) |
| 685 | TYERR("can't convert to integer"); |
| 686 | rc = mp_topylong(x); |
| 687 | end: |
| 688 | mp_drop(x); |
| 689 | return (rc); |
| 690 | } |
| 691 | |
| 692 | static PyObject *ge_pyint(PyObject *me) |
| 693 | { |
| 694 | mp *x = 0; |
| 695 | PyObject *rc = 0; |
| 696 | long l; |
| 697 | |
| 698 | if ((x = G_TOINT(GE_G(me), MP_NEW, GE_X(me))) == 0) |
| 699 | TYERR("can't convert to integer"); |
| 700 | if (mp_tolong_checked(x, &l)) goto end; |
| 701 | rc = PyInt_FromLong(l); |
| 702 | end: |
| 703 | mp_drop(x); |
| 704 | return (rc); |
| 705 | } |
| 706 | |
| 707 | static PyObject *gemeth_toint(PyObject *me, PyObject *arg) |
| 708 | { |
| 709 | mp *x; |
| 710 | |
| 711 | if (!PyArg_ParseTuple(arg, ":toint")) goto end; |
| 712 | if ((x = G_TOINT(GE_G(me), MP_NEW, GE_X(me))) == 0) |
| 713 | TYERR("can't convert to integer"); |
| 714 | return (mp_pywrap(x)); |
| 715 | end: |
| 716 | return (0); |
| 717 | } |
| 718 | |
| 719 | static PyObject *gemeth_toec(PyObject *me, PyObject *arg, PyObject *kw) |
| 720 | { |
| 721 | char *kwlist[] = { "curve", 0 }; |
| 722 | PyTypeObject *cty = ecpt_pytype; |
| 723 | ec p = EC_INIT; |
| 724 | |
| 725 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O:toec", kwlist, |
| 726 | &cty)) goto end; |
| 727 | if (!PyType_Check(cty) || !PyType_IsSubtype(cty, ecpt_pytype)) |
| 728 | TYERR("want subtype of catacomb.ECPt"); |
| 729 | if (G_TOEC(GE_G(me), &p, GE_X(me))) |
| 730 | TYERR("can't convert to ec point"); |
| 731 | return (ecpt_pywrapout(cty, &p)); |
| 732 | end: |
| 733 | return (0); |
| 734 | } |
| 735 | |
| 736 | static PyObject *gemeth_tobuf(PyObject *me, PyObject *arg) |
| 737 | { |
| 738 | buf b; |
| 739 | PyObject *rc; |
| 740 | size_t n; |
| 741 | |
| 742 | if (!PyArg_ParseTuple(arg, ":tobuf")) return (0); |
| 743 | n = GE_G(me)->noctets + 4; |
| 744 | rc = bytestring_pywrap(0, n); |
| 745 | buf_init(&b, PyString_AS_STRING(rc), n); |
| 746 | G_TOBUF(GE_G(me), &b, GE_X(me)); |
| 747 | assert(BOK(&b)); |
| 748 | _PyString_Resize(&rc, BLEN(&b)); |
| 749 | return (rc); |
| 750 | } |
| 751 | |
| 752 | static PyObject *gemeth_toraw(PyObject *me, PyObject *arg) |
| 753 | { |
| 754 | buf b; |
| 755 | PyObject *rc; |
| 756 | size_t n; |
| 757 | |
| 758 | if (!PyArg_ParseTuple(arg, ":toraw")) return (0); |
| 759 | n = GE_G(me)->noctets; |
| 760 | rc = bytestring_pywrap(0, n); |
| 761 | buf_init(&b, PyString_AS_STRING(rc), n); |
| 762 | G_TORAW(GE_G(me), &b, GE_X(me)); |
| 763 | assert(BOK(&b)); |
| 764 | _PyString_Resize(&rc, BLEN(&b)); |
| 765 | return (rc); |
| 766 | } |
| 767 | |
| 768 | static PyObject *gmexp_exp(PyObject *me, void *pp, int n) |
| 769 | { |
| 770 | ge *z = G_CREATE(GROUP_G(me)); |
| 771 | G_MEXP(GROUP_G(me), z, pp, n); |
| 772 | return (ge_pywrap(me, z)); |
| 773 | } |
| 774 | |
| 775 | static void gmexp_drop(void *pp) |
| 776 | { |
| 777 | group_expfactor *f = pp; |
| 778 | MP_DROP(f->exp); |
| 779 | } |
| 780 | |
| 781 | static PyObject *gmeth_mexp(PyObject *me, PyObject *arg) |
| 782 | { |
| 783 | return (mexp_common(me, arg, sizeof(group_expfactor), |
| 784 | gmexp_id, gmexp_fill, gmexp_exp, gmexp_drop)); |
| 785 | } |
| 786 | |
| 787 | static PyObject *gmeth_checkgroup(PyObject *me, PyObject *arg, PyObject *kw) |
| 788 | { |
| 789 | char *kwlist[] = { "rng", 0 }; |
| 790 | grand *r = &rand_global; |
| 791 | const char *p; |
| 792 | |
| 793 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:checkgroup", kwlist, |
| 794 | convgrand, &r)) |
| 795 | goto end; |
| 796 | if ((p = G_CHECK(GROUP_G(me), r)) != 0) |
| 797 | VALERR(p); |
| 798 | RETURN_OBJ(me); |
| 799 | end: |
| 800 | return (0); |
| 801 | } |
| 802 | |
| 803 | static PyObject *group_pyrichcompare(PyObject *x, PyObject *y, int op) |
| 804 | { |
| 805 | int b = group_samep(GROUP_G(x), GROUP_G(y)); |
| 806 | switch (op) { |
| 807 | case Py_EQ: break; |
| 808 | case Py_NE: b = !b; |
| 809 | default: TYERR("can't order groups"); |
| 810 | } |
| 811 | return (getbool(b)); |
| 812 | end: |
| 813 | return (0); |
| 814 | } |
| 815 | |
| 816 | static PyObject *meth__GE_frombuf(PyObject *me, PyObject *arg) |
| 817 | { |
| 818 | buf b; |
| 819 | char *p; |
| 820 | int n; |
| 821 | group *g; |
| 822 | ge *x = 0; |
| 823 | |
| 824 | if (!PyArg_ParseTuple(arg, "Os#:frombuf", &me, &p, &n)) |
| 825 | return (0); |
| 826 | g = GROUP_G(me); |
| 827 | buf_init(&b, p, n); |
| 828 | x = G_CREATE(g); |
| 829 | if (G_FROMBUF(g, &b, x)) |
| 830 | VALERR("invalid data"); |
| 831 | return (Py_BuildValue("(NN)", ge_pywrap(me, x), bytestring_pywrapbuf(&b))); |
| 832 | end: |
| 833 | if (x) G_DESTROY(g, x); |
| 834 | return (0); |
| 835 | } |
| 836 | |
| 837 | static PyObject *meth__GE_fromraw(PyObject *me, PyObject *arg) |
| 838 | { |
| 839 | buf b; |
| 840 | char *p; |
| 841 | int n; |
| 842 | group *g; |
| 843 | ge *x = 0; |
| 844 | |
| 845 | if (!PyArg_ParseTuple(arg, "Os#:fromraw", &me, &p, &n)) |
| 846 | return (0); |
| 847 | g = GROUP_G(me); |
| 848 | buf_init(&b, p, n); |
| 849 | x = G_CREATE(g); |
| 850 | if (G_FROMRAW(g, &b, x)) |
| 851 | VALERR("invalid data"); |
| 852 | return (Py_BuildValue("(NN)", ge_pywrap(me, x), bytestring_pywrapbuf(&b))); |
| 853 | end: |
| 854 | if (x) G_DESTROY(g, x); |
| 855 | return (0); |
| 856 | } |
| 857 | |
| 858 | static PyObject *meth__GE_fromstring(PyObject *me, PyObject *arg) |
| 859 | { |
| 860 | mptext_stringctx sc; |
| 861 | char *p; |
| 862 | int n; |
| 863 | group *g; |
| 864 | ge *x = 0; |
| 865 | |
| 866 | if (!PyArg_ParseTuple(arg, "Os#:fromstring", &me, &p, &n)) |
| 867 | return (0); |
| 868 | sc.buf = p; |
| 869 | sc.lim = sc.buf + n; |
| 870 | g = GROUP_G(me); |
| 871 | x = G_CREATE(g); |
| 872 | if (G_READ(g, x, &mptext_stringops, &sc)) |
| 873 | SYNERR("bad group element string"); |
| 874 | return (Py_BuildValue("(Ns#)", ge_pywrap(me, x), |
| 875 | sc.buf, (int)(sc.lim - sc.buf))); |
| 876 | end: |
| 877 | if (x) G_DESTROY(g, x); |
| 878 | return (0); |
| 879 | } |
| 880 | |
| 881 | static PyObject *meth__Group_parse(PyObject *me, PyObject *arg) |
| 882 | { |
| 883 | char *p; |
| 884 | qd_parse qd; |
| 885 | group *g; |
| 886 | |
| 887 | if (!PyArg_ParseTuple(arg, "Os:parse", &me, &p)) |
| 888 | goto end; |
| 889 | qd.p = p; |
| 890 | qd.e = 0; |
| 891 | if ((g = group_parse(&qd)) == 0) |
| 892 | SYNERR(qd.e); |
| 893 | return (group_pywrap(g)); |
| 894 | end: |
| 895 | return (0); |
| 896 | } |
| 897 | |
| 898 | static PyObject *geget_group(PyObject *me, void *hunoz) |
| 899 | { RETURN_OBJ(GE_GOBJ(me)); } |
| 900 | |
| 901 | static PyObject *gget_nbits(PyObject *me, void *hunoz) |
| 902 | { return (PyInt_FromLong(GROUP_G(me)->nbits)); } |
| 903 | |
| 904 | static PyObject *gget_noctets(PyObject *me, void *hunoz) |
| 905 | { return (PyInt_FromLong(GROUP_G(me)->noctets)); } |
| 906 | |
| 907 | static PyObject *gget_i(PyObject *me, void *hunoz) |
| 908 | { |
| 909 | group *g = GROUP_G(me); ge *x = G_CREATE(g); |
| 910 | G_COPY(g, x, g->i); return (ge_pywrap(me, x)); |
| 911 | } |
| 912 | |
| 913 | static PyObject *gget_g(PyObject *me, void *hunoz) |
| 914 | { |
| 915 | group *g = GROUP_G(me); ge *x = G_CREATE(g); |
| 916 | G_COPY(g, x, g->g); return (ge_pywrap(me, x)); |
| 917 | } |
| 918 | |
| 919 | static PyObject *gget_r(PyObject *me, void *hunoz) |
| 920 | { return (mp_pywrap(MP_COPY(GROUP_G(me)->r))); } |
| 921 | |
| 922 | static PyObject *gget_h(PyObject *me, void *hunoz) |
| 923 | { return (mp_pywrap(MP_COPY(GROUP_G(me)->h))); } |
| 924 | |
| 925 | static PyGetSetDef ge_pygetset[] = { |
| 926 | #define GETSETNAME(op, name) ge##op##_##name |
| 927 | GET (group, "X.group -> group containing X") |
| 928 | #undef GETSETNAME |
| 929 | { 0 } |
| 930 | }; |
| 931 | |
| 932 | static PyMethodDef ge_pymethods[] = { |
| 933 | #define METHNAME(name) gemeth_##name |
| 934 | METH (inv, "X.inv() -> inverse element of X") |
| 935 | METH (sqr, "X.sqr() -> X^2 = X * X") |
| 936 | METH (check, "X.check() -> check X really belongs to its group") |
| 937 | METH (toint, "X.toint() -> X converted to an integer") |
| 938 | KWMETH(toec, "\ |
| 939 | X.toec(curve = ecpt) -> X converted to elliptic curve point") |
| 940 | METH (tobuf, "X.tobuf() -> X in buffer representation") |
| 941 | METH (toraw, "X.toraw() -> X in raw representation") |
| 942 | #undef METHNAME |
| 943 | { 0 } |
| 944 | }; |
| 945 | |
| 946 | static PyNumberMethods ge_pynumber = { |
| 947 | 0, /* @nb_add@ */ |
| 948 | 0, /* @nb_subtract@ */ |
| 949 | ge_pymul, /* @nb_multiply@ */ |
| 950 | ge_pydiv, /* @nb_divide@ */ |
| 951 | 0, /* @nb_remainder@ */ |
| 952 | 0, /* @nb_divmod@ */ |
| 953 | ge_pyexp, /* @nb_power@ */ |
| 954 | 0, /* @nb_negative@ */ |
| 955 | 0, /* @nb_positive@ */ |
| 956 | 0, /* @nb_absolute@ */ |
| 957 | ge_pynonzerop, /* @nb_nonzero@ */ |
| 958 | 0, /* @nb_invert@ */ |
| 959 | 0, /* @nb_lshift@ */ |
| 960 | 0, /* @nb_rshift@ */ |
| 961 | 0, /* @nb_and@ */ |
| 962 | 0, /* @nb_xor@ */ |
| 963 | 0, /* @nb_or@ */ |
| 964 | 0, /* @nb_coerce@ */ |
| 965 | ge_pyint, /* @nb_int@ */ |
| 966 | ge_pylong, /* @nb_long@ */ |
| 967 | 0 /* meaningless */, /* @nb_float@ */ |
| 968 | 0, /* @nb_oct@ */ |
| 969 | 0, /* @nb_hex@ */ |
| 970 | |
| 971 | 0, /* @nb_inplace_add@ */ |
| 972 | 0, /* @nb_inplace_subtract@ */ |
| 973 | 0, /* @nb_inplace_multiply@ */ |
| 974 | 0, /* @nb_inplace_divide@ */ |
| 975 | 0, /* @nb_inplace_remainder@ */ |
| 976 | 0, /* @nb_inplace_power@ */ |
| 977 | 0, /* @nb_inplace_lshift@ */ |
| 978 | 0, /* @nb_inplace_rshift@ */ |
| 979 | 0, /* @nb_inplace_and@ */ |
| 980 | 0, /* @nb_inplace_xor@ */ |
| 981 | 0, /* @nb_inplace_or@ */ |
| 982 | |
| 983 | 0, /* @nb_floor_divide@ */ |
| 984 | ge_pydiv, /* @nb_true_divide@ */ |
| 985 | 0, /* @nb_inplace_floor_divide@ */ |
| 986 | 0, /* @nb_inplace_true_divide@ */ |
| 987 | }; |
| 988 | |
| 989 | static PyTypeObject ge_pytype_skel = { |
| 990 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 991 | "catacomb.GE", /* @tp_name@ */ |
| 992 | sizeof(ge_pyobj), /* @tp_basicsize@ */ |
| 993 | 0, /* @tp_itemsize@ */ |
| 994 | |
| 995 | ge_pydealloc, /* @tp_dealloc@ */ |
| 996 | 0, /* @tp_print@ */ |
| 997 | 0, /* @tp_getattr@ */ |
| 998 | 0, /* @tp_setattr@ */ |
| 999 | 0, /* @tp_compare@ */ |
| 1000 | 0, /* @tp_repr@ */ |
| 1001 | &ge_pynumber, /* @tp_as_number@ */ |
| 1002 | 0, /* @tp_as_sequence@ */ |
| 1003 | 0, /* @tp_as_mapping@ */ |
| 1004 | 0, /* @tp_hash@ */ |
| 1005 | 0, /* @tp_call@ */ |
| 1006 | ge_pystr, /* @tp_str@ */ |
| 1007 | 0, /* @tp_getattro@ */ |
| 1008 | 0, /* @tp_setattro@ */ |
| 1009 | 0, /* @tp_as_buffer@ */ |
| 1010 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 1011 | Py_TPFLAGS_CHECKTYPES | |
| 1012 | Py_TPFLAGS_BASETYPE, |
| 1013 | |
| 1014 | /* @tp_doc@ */ |
| 1015 | "Group elements, abstract base class.", |
| 1016 | |
| 1017 | 0, /* @tp_traverse@ */ |
| 1018 | 0, /* @tp_clear@ */ |
| 1019 | ge_pyrichcompare, /* @tp_richcompare@ */ |
| 1020 | 0, /* @tp_weaklistoffset@ */ |
| 1021 | 0, /* @tp_iter@ */ |
| 1022 | 0, /* @tp_iternext@ */ |
| 1023 | ge_pymethods, /* @tp_methods@ */ |
| 1024 | 0, /* @tp_members@ */ |
| 1025 | ge_pygetset, /* @tp_getset@ */ |
| 1026 | 0, /* @tp_base@ */ |
| 1027 | 0, /* @tp_dict@ */ |
| 1028 | 0, /* @tp_descr_get@ */ |
| 1029 | 0, /* @tp_descr_set@ */ |
| 1030 | 0, /* @tp_dictoffset@ */ |
| 1031 | 0, /* @tp_init@ */ |
| 1032 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1033 | abstract_pynew, /* @tp_new@ */ |
| 1034 | 0, /* @tp_free@ */ |
| 1035 | 0 /* @tp_is_gc@ */ |
| 1036 | }; |
| 1037 | |
| 1038 | static PyGetSetDef group_pygetset[] = { |
| 1039 | #define GETSETNAME(op, name) g##op##_##name |
| 1040 | GET (noctets, "G.noctets -> size in octets of element") |
| 1041 | GET (nbits, "G.nbits -> size in bits of element") |
| 1042 | GET (i, "G.i -> group identity") |
| 1043 | GET (g, "G.g -> group generator") |
| 1044 | GET (r, "G.r -> group order") |
| 1045 | GET (h, "G.h -> group cofactor") |
| 1046 | #undef GETSETNAME |
| 1047 | { 0 } |
| 1048 | }; |
| 1049 | |
| 1050 | static PyMethodDef group_pymethods[] = { |
| 1051 | #define METHNAME(name) gmeth_##name |
| 1052 | METH (mexp, "\ |
| 1053 | G.mexp([(X0, N0), (X1, N1), ...]) -> X0^N0 X1^N1 ...") |
| 1054 | KWMETH(checkgroup, "G.checkgroup(rand = random): check group is good") |
| 1055 | #undef METHNAME |
| 1056 | { 0 } |
| 1057 | }; |
| 1058 | |
| 1059 | static PyTypeObject group_pytype_skel = { |
| 1060 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 1061 | "catacomb.Group", /* @tp_name@ */ |
| 1062 | sizeof(group_pyobj), /* @tp_basicsize@ */ |
| 1063 | 0, /* @tp_itemsize@ */ |
| 1064 | |
| 1065 | group_pydealloc, /* @tp_dealloc@ */ |
| 1066 | 0, /* @tp_print@ */ |
| 1067 | 0, /* @tp_getattr@ */ |
| 1068 | 0, /* @tp_setattr@ */ |
| 1069 | 0, /* @tp_compare@ */ |
| 1070 | 0, /* @tp_repr@ */ |
| 1071 | 0, /* @tp_as_number@ */ |
| 1072 | 0, /* @tp_as_sequence@ */ |
| 1073 | 0, /* @tp_as_mapping@ */ |
| 1074 | 0, /* @tp_hash@ */ |
| 1075 | 0, /* @tp_call@ */ |
| 1076 | 0, /* @tp_str@ */ |
| 1077 | 0, /* @tp_getattro@ */ |
| 1078 | 0, /* @tp_setattro@ */ |
| 1079 | 0, /* @tp_as_buffer@ */ |
| 1080 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 1081 | Py_TPFLAGS_BASETYPE, |
| 1082 | |
| 1083 | /* @tp_doc@ */ |
| 1084 | "Abstract base class for groups.", |
| 1085 | |
| 1086 | 0, /* @tp_traverse@ */ |
| 1087 | 0, /* @tp_clear@ */ |
| 1088 | group_pyrichcompare, /* @tp_richcompare@ */ |
| 1089 | 0, /* @tp_weaklistoffset@ */ |
| 1090 | 0, /* @tp_iter@ */ |
| 1091 | 0, /* @tp_iternext@ */ |
| 1092 | group_pymethods, /* @tp_methods@ */ |
| 1093 | 0, /* @tp_members@ */ |
| 1094 | group_pygetset, /* @tp_getset@ */ |
| 1095 | 0, /* @tp_base@ */ |
| 1096 | 0, /* @tp_dict@ */ |
| 1097 | 0, /* @tp_descr_get@ */ |
| 1098 | 0, /* @tp_descr_set@ */ |
| 1099 | 0, /* @tp_dictoffset@ */ |
| 1100 | 0, /* @tp_init@ */ |
| 1101 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1102 | abstract_pynew, /* @tp_new@ */ |
| 1103 | 0, /* @tp_free@ */ |
| 1104 | 0 /* @tp_is_gc@ */ |
| 1105 | }; |
| 1106 | |
| 1107 | static PyObject *pgget_info(PyObject *me, void *hunoz) |
| 1108 | { |
| 1109 | gprime_param dp; |
| 1110 | gctx_prime *gg = (gctx_prime *)GROUP_G(me); |
| 1111 | dp.p = MP_COPY(gg->mm.m); |
| 1112 | dp.q = MP_COPY(gg->g.r); |
| 1113 | dp.g = mpmont_reduce(&gg->mm, MP_NEW, gg->gen); |
| 1114 | return (fginfo_pywrap(&dp, dhinfo_pytype)); |
| 1115 | } |
| 1116 | |
| 1117 | static PyGetSetDef primegroup_pygetset[] = { |
| 1118 | #define GETSETNAME(op, name) pg##op##_##name |
| 1119 | GET (info, "G.info -> information about the group") |
| 1120 | #undef GETSETNAME |
| 1121 | { 0 } |
| 1122 | }; |
| 1123 | |
| 1124 | static PyObject *primegroup_pynew(PyTypeObject *ty, |
| 1125 | PyObject *arg, PyObject *kw) |
| 1126 | { |
| 1127 | PyObject *i; |
| 1128 | char *kwlist[] = { "info", 0 }; |
| 1129 | |
| 1130 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O!:new", kwlist, |
| 1131 | dhinfo_pytype, &i)) |
| 1132 | return (0); |
| 1133 | return (group_dopywrap(ty, group_prime(FGINFO_DP(i)))); |
| 1134 | } |
| 1135 | |
| 1136 | static PyTypeObject primegroup_pytype_skel = { |
| 1137 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 1138 | "catacomb.PrimeGroup", /* @tp_name@ */ |
| 1139 | sizeof(group_pyobj), /* @tp_basicsize@ */ |
| 1140 | 0, /* @tp_itemsize@ */ |
| 1141 | |
| 1142 | group_pydealloc, /* @tp_dealloc@ */ |
| 1143 | 0, /* @tp_print@ */ |
| 1144 | 0, /* @tp_getattr@ */ |
| 1145 | 0, /* @tp_setattr@ */ |
| 1146 | 0, /* @tp_compare@ */ |
| 1147 | 0, /* @tp_repr@ */ |
| 1148 | 0, /* @tp_as_number@ */ |
| 1149 | 0, /* @tp_as_sequence@ */ |
| 1150 | 0, /* @tp_as_mapping@ */ |
| 1151 | 0, /* @tp_hash@ */ |
| 1152 | 0, /* @tp_call@ */ |
| 1153 | 0, /* @tp_str@ */ |
| 1154 | 0, /* @tp_getattro@ */ |
| 1155 | 0, /* @tp_setattro@ */ |
| 1156 | 0, /* @tp_as_buffer@ */ |
| 1157 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 1158 | Py_TPFLAGS_BASETYPE, |
| 1159 | |
| 1160 | /* @tp_doc@ */ |
| 1161 | "Subgroups of prime fields.", |
| 1162 | |
| 1163 | 0, /* @tp_traverse@ */ |
| 1164 | 0, /* @tp_clear@ */ |
| 1165 | 0, /* @tp_richcompare@ */ |
| 1166 | 0, /* @tp_weaklistoffset@ */ |
| 1167 | 0, /* @tp_iter@ */ |
| 1168 | 0, /* @tp_iternext@ */ |
| 1169 | 0, /* @tp_methods@ */ |
| 1170 | 0, /* @tp_members@ */ |
| 1171 | primegroup_pygetset, /* @tp_getset@ */ |
| 1172 | 0, /* @tp_base@ */ |
| 1173 | 0, /* @tp_dict@ */ |
| 1174 | 0, /* @tp_descr_get@ */ |
| 1175 | 0, /* @tp_descr_set@ */ |
| 1176 | 0, /* @tp_dictoffset@ */ |
| 1177 | 0, /* @tp_init@ */ |
| 1178 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1179 | primegroup_pynew, /* @tp_new@ */ |
| 1180 | 0, /* @tp_free@ */ |
| 1181 | 0 /* @tp_is_gc@ */ |
| 1182 | }; |
| 1183 | |
| 1184 | static PyObject *bgget_info(PyObject *me, void *hunoz) |
| 1185 | { |
| 1186 | gbin_param dp; |
| 1187 | gctx_bin *gg = (gctx_bin *)GROUP_G(me); |
| 1188 | dp.p = MP_COPY(gg->r.p); |
| 1189 | dp.q = MP_COPY(gg->g.r); |
| 1190 | dp.g = MP_COPY(gg->gen); |
| 1191 | return (fginfo_pywrap(&dp, bindhinfo_pytype)); |
| 1192 | } |
| 1193 | |
| 1194 | static PyGetSetDef bingroup_pygetset[] = { |
| 1195 | #define GETSETNAME(op, name) bg##op##_##name |
| 1196 | GET (info, "G.info -> information about the group") |
| 1197 | #undef GETSETNAME |
| 1198 | { 0 } |
| 1199 | }; |
| 1200 | |
| 1201 | static PyObject *bingroup_pynew(PyTypeObject *ty, |
| 1202 | PyObject *arg, PyObject *kw) |
| 1203 | { |
| 1204 | PyObject *i; |
| 1205 | char *kwlist[] = { "info", 0 }; |
| 1206 | |
| 1207 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O!:new", kwlist, |
| 1208 | bindhinfo_pytype, &i)) |
| 1209 | return (0); |
| 1210 | return (group_dopywrap(ty, group_binary(FGINFO_DP(i)))); |
| 1211 | } |
| 1212 | |
| 1213 | static PyTypeObject bingroup_pytype_skel = { |
| 1214 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 1215 | "catacomb.BinGroup", /* @tp_name@ */ |
| 1216 | sizeof(group_pyobj), /* @tp_basicsize@ */ |
| 1217 | 0, /* @tp_itemsize@ */ |
| 1218 | |
| 1219 | group_pydealloc, /* @tp_dealloc@ */ |
| 1220 | 0, /* @tp_print@ */ |
| 1221 | 0, /* @tp_getattr@ */ |
| 1222 | 0, /* @tp_setattr@ */ |
| 1223 | 0, /* @tp_compare@ */ |
| 1224 | 0, /* @tp_repr@ */ |
| 1225 | 0, /* @tp_as_number@ */ |
| 1226 | 0, /* @tp_as_sequence@ */ |
| 1227 | 0, /* @tp_as_mapping@ */ |
| 1228 | 0, /* @tp_hash@ */ |
| 1229 | 0, /* @tp_call@ */ |
| 1230 | 0, /* @tp_str@ */ |
| 1231 | 0, /* @tp_getattro@ */ |
| 1232 | 0, /* @tp_setattro@ */ |
| 1233 | 0, /* @tp_as_buffer@ */ |
| 1234 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 1235 | Py_TPFLAGS_BASETYPE, |
| 1236 | |
| 1237 | /* @tp_doc@ */ |
| 1238 | "Subgroups of binary fields.", |
| 1239 | |
| 1240 | 0, /* @tp_traverse@ */ |
| 1241 | 0, /* @tp_clear@ */ |
| 1242 | 0, /* @tp_richcompare@ */ |
| 1243 | 0, /* @tp_weaklistoffset@ */ |
| 1244 | 0, /* @tp_iter@ */ |
| 1245 | 0, /* @tp_iternext@ */ |
| 1246 | 0, /* @tp_methods@ */ |
| 1247 | 0, /* @tp_members@ */ |
| 1248 | bingroup_pygetset, /* @tp_getset@ */ |
| 1249 | 0, /* @tp_base@ */ |
| 1250 | 0, /* @tp_dict@ */ |
| 1251 | 0, /* @tp_descr_get@ */ |
| 1252 | 0, /* @tp_descr_set@ */ |
| 1253 | 0, /* @tp_dictoffset@ */ |
| 1254 | 0, /* @tp_init@ */ |
| 1255 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1256 | bingroup_pynew, /* @tp_new@ */ |
| 1257 | 0, /* @tp_free@ */ |
| 1258 | 0 /* @tp_is_gc@ */ |
| 1259 | }; |
| 1260 | |
| 1261 | static PyObject *egget_info(PyObject *me, void *hunoz) |
| 1262 | { |
| 1263 | ec_info ei; |
| 1264 | gctx_ec *gg = (gctx_ec *)GROUP_G(me); |
| 1265 | |
| 1266 | ecinfo_copy(&ei, &gg->ei); |
| 1267 | return (ecinfo_pywrap(&ei)); |
| 1268 | } |
| 1269 | |
| 1270 | static PyGetSetDef ecgroup_pygetset[] = { |
| 1271 | #define GETSETNAME(op, name) eg##op##_##name |
| 1272 | GET (info, "G.info -> information about the group") |
| 1273 | #undef GETSETNAME |
| 1274 | { 0 } |
| 1275 | }; |
| 1276 | |
| 1277 | static PyObject *ecgroup_pynew(PyTypeObject *ty, |
| 1278 | PyObject *arg, PyObject *kw) |
| 1279 | { |
| 1280 | PyObject *i; |
| 1281 | ec_info ei; |
| 1282 | char *kwlist[] = { "info", 0 }; |
| 1283 | |
| 1284 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O!:new", kwlist, |
| 1285 | ecinfo_pytype, &i)) |
| 1286 | return (0); |
| 1287 | ecinfo_copy(&ei, ECINFO_EI(i)); |
| 1288 | return (group_dopywrap(ty, group_ec(&ei))); |
| 1289 | } |
| 1290 | |
| 1291 | static PyTypeObject ecgroup_pytype_skel = { |
| 1292 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 1293 | "catacomb.ECGroup", /* @tp_name@ */ |
| 1294 | sizeof(group_pyobj), /* @tp_basicsize@ */ |
| 1295 | 0, /* @tp_itemsize@ */ |
| 1296 | |
| 1297 | group_pydealloc, /* @tp_dealloc@ */ |
| 1298 | 0, /* @tp_print@ */ |
| 1299 | 0, /* @tp_getattr@ */ |
| 1300 | 0, /* @tp_setattr@ */ |
| 1301 | 0, /* @tp_compare@ */ |
| 1302 | 0, /* @tp_repr@ */ |
| 1303 | 0, /* @tp_as_number@ */ |
| 1304 | 0, /* @tp_as_sequence@ */ |
| 1305 | 0, /* @tp_as_mapping@ */ |
| 1306 | 0, /* @tp_hash@ */ |
| 1307 | 0, /* @tp_call@ */ |
| 1308 | 0, /* @tp_str@ */ |
| 1309 | 0, /* @tp_getattro@ */ |
| 1310 | 0, /* @tp_setattro@ */ |
| 1311 | 0, /* @tp_as_buffer@ */ |
| 1312 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 1313 | Py_TPFLAGS_BASETYPE, |
| 1314 | |
| 1315 | /* @tp_doc@ */ |
| 1316 | "Elliptic curve groups.", |
| 1317 | |
| 1318 | 0, /* @tp_traverse@ */ |
| 1319 | 0, /* @tp_clear@ */ |
| 1320 | 0, /* @tp_richcompare@ */ |
| 1321 | 0, /* @tp_weaklistoffset@ */ |
| 1322 | 0, /* @tp_iter@ */ |
| 1323 | 0, /* @tp_iternext@ */ |
| 1324 | 0, /* @tp_methods@ */ |
| 1325 | 0, /* @tp_members@ */ |
| 1326 | ecgroup_pygetset, /* @tp_getset@ */ |
| 1327 | 0, /* @tp_base@ */ |
| 1328 | 0, /* @tp_dict@ */ |
| 1329 | 0, /* @tp_descr_get@ */ |
| 1330 | 0, /* @tp_descr_set@ */ |
| 1331 | 0, /* @tp_dictoffset@ */ |
| 1332 | 0, /* @tp_init@ */ |
| 1333 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1334 | ecgroup_pynew, /* @tp_new@ */ |
| 1335 | 0, /* @tp_free@ */ |
| 1336 | 0 /* @tp_is_gc@ */ |
| 1337 | }; |
| 1338 | |
| 1339 | /*----- Global stuff ------------------------------------------------------*/ |
| 1340 | |
| 1341 | static PyMethodDef methods[] = { |
| 1342 | #define METHNAME(name) meth_##name |
| 1343 | METH (_GE_frombuf, "frombuf(BUF) -> X, REST") |
| 1344 | METH (_GE_fromraw, "fromraw(BUF) -> X, REST") |
| 1345 | METH (_GE_fromstring, "fromstring(STR) -> X, REST") |
| 1346 | METH (_Group_parse, "parse(STR) -> G, REST") |
| 1347 | METH (_DHInfo_parse, "parse(STR) -> D, REST") |
| 1348 | METH (_BinDHInfo_parse, "parse(STR) -> D, REST") |
| 1349 | METH (_DHInfo__groupn, 0) |
| 1350 | METH (_BinDHInfo__groupn, 0) |
| 1351 | KWMETH(_DHInfo_generate, "\ |
| 1352 | generate(PBITS, [qbits = 0, event = pgen_nullev,\n\ |
| 1353 | rng = rand, nsteps = 0]) -> D") |
| 1354 | KWMETH(_DHInfo_genlimlee, "\ |
| 1355 | genlimlee(PBITS, QBITS, [event = pgen_nullev, ievent = pgen_nullev,\n\ |
| 1356 | rng = rand, nsteps = 0, subgroupp = True]) -> (D, [Q, ...])") |
| 1357 | KWMETH(_DHInfo_gendsa, "\ |
| 1358 | gendsa(PBITS, QBITS, SEED, [event = pgen_nullev, nsteps = 0])\n\ |
| 1359 | -> (D, SEED, COUNT)") |
| 1360 | KWMETH(_DHInfo_genkcdsa, "\ |
| 1361 | gendsa(PBITS, QBITS, [event = pgen_nullev, rng = rand, nsteps = 0])\n\ |
| 1362 | -> (D, V)") |
| 1363 | #undef METHNAME |
| 1364 | { 0 } |
| 1365 | }; |
| 1366 | |
| 1367 | void group_pyinit(void) |
| 1368 | { |
| 1369 | INITTYPE(fginfo, root); |
| 1370 | INITTYPE(dhinfo, fginfo); |
| 1371 | INITTYPE(bindhinfo, dhinfo); |
| 1372 | INITTYPE(ge, root); |
| 1373 | INITTYPE(group, type); |
| 1374 | INITTYPE(primegroup, group); |
| 1375 | INITTYPE(bingroup, group); |
| 1376 | INITTYPE(ecgroup, group); |
| 1377 | addmethods(methods); |
| 1378 | } |
| 1379 | |
| 1380 | void group_pyinsert(PyObject *mod) |
| 1381 | { |
| 1382 | INSERT("FGInfo", fginfo_pytype); |
| 1383 | INSERT("DHInfo", dhinfo_pytype); |
| 1384 | INSERT("BinDHInfo", bindhinfo_pytype); |
| 1385 | INSERT("GE", ge_pytype); |
| 1386 | INSERT("Group", group_pytype); |
| 1387 | INSERT("PrimeGroup", primegroup_pytype); |
| 1388 | INSERT("BinGroup", bingroup_pytype); |
| 1389 | INSERT("ECGroup", ecgroup_pytype); |
| 1390 | INSERT("_pgroups", namedgroups(ptab, &npgroups)); |
| 1391 | INSERT("_bingroups", namedgroups(bintab, &nbingroups)); |
| 1392 | } |
| 1393 | |
| 1394 | /*----- That's all, folks -------------------------------------------------*/ |