| 1 | /* -*-c-*- |
| 2 | * |
| 3 | * Random-number generators |
| 4 | * |
| 5 | * (c) 2004 Straylight/Edgeware |
| 6 | */ |
| 7 | |
| 8 | /*----- Licensing notice --------------------------------------------------* |
| 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. |
| 16 | * |
| 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. |
| 21 | * |
| 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 | PUBLIC_SYMBOLS; |
| 31 | #include "algorithms.h" |
| 32 | PRIVATE_SYMBOLS; |
| 33 | |
| 34 | /*----- Main code ---------------------------------------------------------*/ |
| 35 | |
| 36 | PyTypeObject *grand_pytype; |
| 37 | static PyTypeObject *truerand_pytype; |
| 38 | static PyTypeObject *lcrand_pytype, *fibrand_pytype; |
| 39 | static PyTypeObject *dsarand_pytype, *bbs_pytype, *bbspriv_pytype; |
| 40 | static PyTypeObject *sslprf_pytype, *tlsdx_pytype, *tlsprf_pytype; |
| 41 | PyObject *rand_pyobj; |
| 42 | |
| 43 | static PyObject *gccrands_dict; |
| 44 | |
| 45 | static PyObject *grand_dopywrap(PyTypeObject *ty, grand *r, unsigned f) |
| 46 | { |
| 47 | grand_pyobj *g; |
| 48 | |
| 49 | g = (grand_pyobj *)ty->tp_alloc(ty, 0); |
| 50 | g->r = r; |
| 51 | g->f = f; |
| 52 | return ((PyObject *)g); |
| 53 | } |
| 54 | |
| 55 | PyObject *grand_pywrap(grand *r, unsigned f) |
| 56 | { |
| 57 | PyTypeObject *ty = grand_pytype; |
| 58 | PyObject *ob; |
| 59 | |
| 60 | if (STRCMP(r->ops->name, ==, "rand")) ty = truerand_pytype; |
| 61 | else if (STRCMP(r->ops->name, ==, "lcrand")) ty = lcrand_pytype; |
| 62 | else if (STRCMP(r->ops->name, ==, "fibrand")) ty = fibrand_pytype; |
| 63 | else if (STRCMP(r->ops->name, ==, "dsarand")) ty = dsarand_pytype; |
| 64 | else if (STRCMP(r->ops->name, ==, "bbs")) ty = bbs_pytype; |
| 65 | else if (STRCMP(r->ops->name, ==, "sslprf")) ty = sslprf_pytype; |
| 66 | else if (STRCMP(r->ops->name, ==, "tlsdx")) ty = tlsdx_pytype; |
| 67 | else if (STRCMP(r->ops->name, ==, "tlsprf")) ty = tlsprf_pytype; |
| 68 | else if ((ob = PyMapping_GetItemString |
| 69 | (gccrands_dict, (/*unconst*/ char *)r->ops->name)) != 0) |
| 70 | ty = (PyTypeObject *)ob; |
| 71 | return (grand_dopywrap(ty, r, f)); |
| 72 | } |
| 73 | |
| 74 | CONVFUNC(grand, grand *, GRAND_R) |
| 75 | |
| 76 | static int grand_check(PyObject *me) |
| 77 | { |
| 78 | if (!GRAND_R(me)) VALERR("random generator object is no longer valid"); |
| 79 | return (0); |
| 80 | end: |
| 81 | return (-1); |
| 82 | } |
| 83 | |
| 84 | static PyObject *grmeth_byte(PyObject *me) |
| 85 | { |
| 86 | if (grand_check(me)) return (0); |
| 87 | return (PyInt_FromLong(grand_byte(GRAND_R(me)))); |
| 88 | } |
| 89 | |
| 90 | static PyObject *grmeth_word(PyObject *me) |
| 91 | { |
| 92 | if (grand_check(me)) return (0); |
| 93 | return (getulong(grand_word(GRAND_R(me)))); |
| 94 | } |
| 95 | |
| 96 | static PyObject *grmeth_range(PyObject *me, PyObject *arg) |
| 97 | { |
| 98 | PyObject *m; |
| 99 | mp *x = 0; |
| 100 | mp *y = 0; |
| 101 | |
| 102 | if (!PyArg_ParseTuple(arg, "O:range", &m)) return (0); |
| 103 | if (grand_check(me)) return (0); |
| 104 | if (PyInt_Check(m)) { |
| 105 | long mm = PyInt_AsLong(m); |
| 106 | if (mm == -1 && PyErr_Occurred()) PyErr_Clear(); |
| 107 | else if (mm <= 0) goto notpos; |
| 108 | else if (mm <= 0xffffffff) |
| 109 | return (PyInt_FromLong(grand_range(GRAND_R(me), mm))); |
| 110 | } |
| 111 | if ((x = getmp(m)) == 0) goto end; |
| 112 | if (!MP_POSP(x)) goto notpos; |
| 113 | y = mprand_range(MP_NEW, x, GRAND_R(me), 0); |
| 114 | MP_DROP(x); |
| 115 | return (mp_pywrap(y)); |
| 116 | notpos: |
| 117 | VALERR("range must be strictly positive"); |
| 118 | end: |
| 119 | if (x) MP_DROP(x); |
| 120 | return (0); |
| 121 | } |
| 122 | |
| 123 | static PyObject *grmeth_mp(PyObject *me, PyObject *arg, PyObject *kw) |
| 124 | { |
| 125 | size_t l; |
| 126 | mpw o = 0; |
| 127 | static const char *const kwlist[] = { "bits", "or", 0 }; |
| 128 | |
| 129 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&:mp", KWLIST, |
| 130 | convszt, &l, convmpw, &o)) |
| 131 | goto end; |
| 132 | if (grand_check(me)) return (0); |
| 133 | if (l < MPW_BITS && (o >> l)) VALERR("or mask too large"); |
| 134 | return (mp_pywrap(mprand(MP_NEW, l, GRAND_R(me), o))); |
| 135 | end: |
| 136 | return (0); |
| 137 | } |
| 138 | |
| 139 | static PyObject *grmeth_block(PyObject *me, PyObject *arg) |
| 140 | { |
| 141 | unsigned long n; |
| 142 | PyObject *rc = 0; |
| 143 | |
| 144 | if (!PyArg_ParseTuple(arg, "O&:block", convulong, &n)) goto end; |
| 145 | if (grand_check(me)) return (0); |
| 146 | rc = bytestring_pywrap(0, n); |
| 147 | grand_fill(GRAND_R(me), BIN_PTR(rc), n); |
| 148 | end: |
| 149 | return (rc); |
| 150 | } |
| 151 | |
| 152 | static int checkop(grand *r, unsigned op, const char *what) |
| 153 | { |
| 154 | if (r->ops->misc(r, GRAND_CHECK, op)) return (0); |
| 155 | PyErr_Format(PyExc_TypeError, "operation %s not supported", what); |
| 156 | return (-1); |
| 157 | } |
| 158 | |
| 159 | static PyObject *grmeth_seedint(PyObject *me, PyObject *arg) |
| 160 | { |
| 161 | int i; |
| 162 | grand *r = GRAND_R(me); |
| 163 | if (!PyArg_ParseTuple(arg, "i:seedint", &i) || |
| 164 | grand_check(me) || checkop(r, GRAND_SEEDINT, "seedint")) |
| 165 | goto end; |
| 166 | r->ops->misc(r, GRAND_SEEDINT, i); |
| 167 | RETURN_ME; |
| 168 | end: |
| 169 | return (0); |
| 170 | } |
| 171 | |
| 172 | static PyObject *grmeth_seedword(PyObject *me, PyObject *arg) |
| 173 | { |
| 174 | uint32 u; |
| 175 | grand *r = GRAND_R(me); |
| 176 | if (!PyArg_ParseTuple(arg, "O&:seedword", convu32, &u) || |
| 177 | grand_check(me) || checkop(r, GRAND_SEEDUINT32, "seedword")) |
| 178 | goto end; |
| 179 | r->ops->misc(r, GRAND_SEEDUINT32, u); |
| 180 | RETURN_ME; |
| 181 | end: |
| 182 | return (0); |
| 183 | } |
| 184 | |
| 185 | static PyObject *grmeth_seedblock(PyObject *me, PyObject *arg) |
| 186 | { |
| 187 | struct bin in; |
| 188 | grand *r = GRAND_R(me); |
| 189 | if (!PyArg_ParseTuple(arg, "O&:seedblock", convbin, &in) || |
| 190 | grand_check(me) || checkop(r, GRAND_SEEDBLOCK, "seedblock")) |
| 191 | goto end; |
| 192 | r->ops->misc(r, GRAND_SEEDBLOCK, in.p, (size_t)in.sz); |
| 193 | RETURN_ME; |
| 194 | end: |
| 195 | return (0); |
| 196 | } |
| 197 | |
| 198 | static PyObject *grmeth_seedmp(PyObject *me, PyObject *arg) |
| 199 | { |
| 200 | PyObject *x; |
| 201 | mp *xx; |
| 202 | grand *r = GRAND_R(me); |
| 203 | if (!PyArg_ParseTuple(arg, "O:seedmp", &x) || |
| 204 | grand_check(me) || checkop(r, GRAND_SEEDMP, "seedmp") || |
| 205 | (xx = getmp(x)) == 0) |
| 206 | goto end; |
| 207 | r->ops->misc(r, GRAND_SEEDMP, xx); |
| 208 | MP_DROP(xx); |
| 209 | RETURN_ME; |
| 210 | end: |
| 211 | return (0); |
| 212 | } |
| 213 | |
| 214 | static PyObject *grmeth_seedrand(PyObject *me, PyObject *arg, PyObject *kw) |
| 215 | { |
| 216 | static const char *const kwlist[] = { "rng", 0 }; |
| 217 | grand *r = GRAND_R(me); |
| 218 | grand *rr = &rand_global; |
| 219 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:seedrand", KWLIST, |
| 220 | convgrand, &rr) || |
| 221 | grand_check(me) || checkop(r, GRAND_SEEDRAND, "seedrand")) |
| 222 | goto end; |
| 223 | r->ops->misc(r, GRAND_SEEDRAND, rr); |
| 224 | RETURN_ME; |
| 225 | end: |
| 226 | return (0); |
| 227 | } |
| 228 | |
| 229 | static PyObject *grmeth_mask(PyObject *me, PyObject *arg) |
| 230 | { |
| 231 | grand *r = GRAND_R(me); |
| 232 | struct bin in; |
| 233 | const octet *p; size_t n; |
| 234 | octet *q; |
| 235 | PyObject *rc; |
| 236 | |
| 237 | if (!PyArg_ParseTuple(arg, "O&:mask", convbin, &in)) return (0); |
| 238 | if (grand_check(me)) return (0); |
| 239 | rc = bytestring_pywrap(0, in.sz); |
| 240 | q = (octet *)BIN_PTR(rc); |
| 241 | GR_FILL(r, q, in.sz); |
| 242 | p = in.p; n = in.sz; while (n--) *q++ ^= *p++; |
| 243 | return (rc); |
| 244 | } |
| 245 | |
| 246 | static void grand_pydealloc(PyObject *me) |
| 247 | { |
| 248 | grand_pyobj *g = (grand_pyobj *)me; |
| 249 | if ((g->f & f_freeme) && g->r) GR_DESTROY(g->r); |
| 250 | FREEOBJ(me); |
| 251 | } |
| 252 | |
| 253 | static PyObject *grget_name(PyObject *me, void *hunoz) |
| 254 | { return (grand_check(me) ? 0 : TEXT_FROMSTR(GRAND_R(me)->ops->name)); } |
| 255 | |
| 256 | static PyObject *grget_cryptop(PyObject *me, void *hunoz) |
| 257 | { return (grand_check(me) ? 0 : getbool(GRAND_R(me)->ops->f & GRAND_CRYPTO)); } |
| 258 | |
| 259 | static const PyGetSetDef grand_pygetset[] = { |
| 260 | #define GETSETNAME(op, name) gr##op##_##name |
| 261 | GET (name, "R.name -> name of this kind of generator") |
| 262 | GET (cryptop, "R.cryptop -> flag: cryptographically strong?") |
| 263 | #undef GETSETNAME |
| 264 | { 0 } |
| 265 | }; |
| 266 | |
| 267 | static const PyMethodDef grand_pymethods[] = { |
| 268 | #define METHNAME(name) grmeth_##name |
| 269 | NAMETH(byte, "R.byte() -> BYTE") |
| 270 | NAMETH(word, "R.word() -> WORD") |
| 271 | METH (block, "R.block(N) -> STRING") |
| 272 | KWMETH(mp, "R.mp(bits, [or = 0]) -> MP") |
| 273 | METH (range, "R.range(MAX) -> INT") |
| 274 | METH (mask, "R.mask(STR) -> STR") |
| 275 | METH (seedint, "R.seedint(I)") |
| 276 | METH (seedword, "R.seedword(I)") |
| 277 | METH (seedblock, "R.seedblock(BYTES)") |
| 278 | METH (seedmp, "R.seedmp(X)") |
| 279 | KWMETH(seedrand, "R.seedrand(RR)") |
| 280 | #undef METHNAME |
| 281 | { 0 } |
| 282 | }; |
| 283 | |
| 284 | static const PyTypeObject grand_pytype_skel = { |
| 285 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
| 286 | "GRand", /* @tp_name@ */ |
| 287 | sizeof(grand_pyobj), /* @tp_basicsize@ */ |
| 288 | 0, /* @tp_itemsize@ */ |
| 289 | |
| 290 | grand_pydealloc, /* @tp_dealloc@ */ |
| 291 | 0, /* @tp_print@ */ |
| 292 | 0, /* @tp_getattr@ */ |
| 293 | 0, /* @tp_setattr@ */ |
| 294 | 0, /* @tp_compare@ */ |
| 295 | 0, /* @tp_repr@ */ |
| 296 | 0, /* @tp_as_number@ */ |
| 297 | 0, /* @tp_as_sequence@ */ |
| 298 | 0, /* @tp_as_mapping@ */ |
| 299 | 0, /* @tp_hash@ */ |
| 300 | 0, /* @tp_call@ */ |
| 301 | 0, /* @tp_str@ */ |
| 302 | 0, /* @tp_getattro@ */ |
| 303 | 0, /* @tp_setattro@ */ |
| 304 | 0, /* @tp_as_buffer@ */ |
| 305 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 306 | Py_TPFLAGS_BASETYPE, |
| 307 | |
| 308 | /* @tp_doc@ */ |
| 309 | "Generic random number source.", |
| 310 | |
| 311 | 0, /* @tp_traverse@ */ |
| 312 | 0, /* @tp_clear@ */ |
| 313 | 0, /* @tp_richcompare@ */ |
| 314 | 0, /* @tp_weaklistoffset@ */ |
| 315 | 0, /* @tp_iter@ */ |
| 316 | 0, /* @tp_iternext@ */ |
| 317 | PYMETHODS(grand), /* @tp_methods@ */ |
| 318 | 0, /* @tp_members@ */ |
| 319 | PYGETSET(grand), /* @tp_getset@ */ |
| 320 | 0, /* @tp_base@ */ |
| 321 | 0, /* @tp_dict@ */ |
| 322 | 0, /* @tp_descr_get@ */ |
| 323 | 0, /* @tp_descr_set@ */ |
| 324 | 0, /* @tp_dictoffset@ */ |
| 325 | 0, /* @tp_init@ */ |
| 326 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 327 | abstract_pynew, /* @tp_new@ */ |
| 328 | 0, /* @tp_free@ */ |
| 329 | 0 /* @tp_is_gc@ */ |
| 330 | }; |
| 331 | |
| 332 | static PyObject *lcrand_pynew(PyTypeObject *me, PyObject *arg, PyObject *kw) |
| 333 | { |
| 334 | uint32 n = 0; |
| 335 | static const char *const kwlist[] = { "seed", 0 }; |
| 336 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:new", KWLIST, convu32, &n)) |
| 337 | return (0); |
| 338 | return (grand_dopywrap(lcrand_pytype, lcrand_create(n), f_freeme)); |
| 339 | } |
| 340 | |
| 341 | static const PyTypeObject lcrand_pytype_skel = { |
| 342 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
| 343 | "LCRand", /* @tp_name@ */ |
| 344 | sizeof(grand_pyobj), /* @tp_basicsize@ */ |
| 345 | 0, /* @tp_itemsize@ */ |
| 346 | |
| 347 | grand_pydealloc, /* @tp_dealloc@ */ |
| 348 | 0, /* @tp_print@ */ |
| 349 | 0, /* @tp_getattr@ */ |
| 350 | 0, /* @tp_setattr@ */ |
| 351 | 0, /* @tp_compare@ */ |
| 352 | 0, /* @tp_repr@ */ |
| 353 | 0, /* @tp_as_number@ */ |
| 354 | 0, /* @tp_as_sequence@ */ |
| 355 | 0, /* @tp_as_mapping@ */ |
| 356 | 0, /* @tp_hash@ */ |
| 357 | 0, /* @tp_call@ */ |
| 358 | 0, /* @tp_str@ */ |
| 359 | 0, /* @tp_getattro@ */ |
| 360 | 0, /* @tp_setattro@ */ |
| 361 | 0, /* @tp_as_buffer@ */ |
| 362 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 363 | Py_TPFLAGS_BASETYPE, |
| 364 | |
| 365 | /* @tp_doc@ */ |
| 366 | "LCRand([seed = 0]): linear congruential generator.", |
| 367 | |
| 368 | 0, /* @tp_traverse@ */ |
| 369 | 0, /* @tp_clear@ */ |
| 370 | 0, /* @tp_richcompare@ */ |
| 371 | 0, /* @tp_weaklistoffset@ */ |
| 372 | 0, /* @tp_iter@ */ |
| 373 | 0, /* @tp_iternext@ */ |
| 374 | 0, /* @tp_methods@ */ |
| 375 | 0, /* @tp_members@ */ |
| 376 | 0, /* @tp_getset@ */ |
| 377 | 0, /* @tp_base@ */ |
| 378 | 0, /* @tp_dict@ */ |
| 379 | 0, /* @tp_descr_get@ */ |
| 380 | 0, /* @tp_descr_set@ */ |
| 381 | 0, /* @tp_dictoffset@ */ |
| 382 | 0, /* @tp_init@ */ |
| 383 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 384 | lcrand_pynew, /* @tp_new@ */ |
| 385 | 0, /* @tp_free@ */ |
| 386 | 0 /* @tp_is_gc@ */ |
| 387 | }; |
| 388 | |
| 389 | static PyObject *fibrand_pynew(PyTypeObject *me, PyObject *arg, PyObject *kw) |
| 390 | { |
| 391 | uint32 n = 0; |
| 392 | static const char *const kwlist[] = { "seed", 0 }; |
| 393 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:new", KWLIST, convu32, &n)) |
| 394 | return (0); |
| 395 | return (grand_dopywrap(fibrand_pytype, fibrand_create(n), f_freeme)); |
| 396 | } |
| 397 | |
| 398 | static const PyTypeObject fibrand_pytype_skel = { |
| 399 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
| 400 | "FibRand", /* @tp_name@ */ |
| 401 | sizeof(grand_pyobj), /* @tp_basicsize@ */ |
| 402 | 0, /* @tp_itemsize@ */ |
| 403 | |
| 404 | grand_pydealloc, /* @tp_dealloc@ */ |
| 405 | 0, /* @tp_print@ */ |
| 406 | 0, /* @tp_getattr@ */ |
| 407 | 0, /* @tp_setattr@ */ |
| 408 | 0, /* @tp_compare@ */ |
| 409 | 0, /* @tp_repr@ */ |
| 410 | 0, /* @tp_as_number@ */ |
| 411 | 0, /* @tp_as_sequence@ */ |
| 412 | 0, /* @tp_as_mapping@ */ |
| 413 | 0, /* @tp_hash@ */ |
| 414 | 0, /* @tp_call@ */ |
| 415 | 0, /* @tp_str@ */ |
| 416 | 0, /* @tp_getattro@ */ |
| 417 | 0, /* @tp_setattro@ */ |
| 418 | 0, /* @tp_as_buffer@ */ |
| 419 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 420 | Py_TPFLAGS_BASETYPE, |
| 421 | |
| 422 | /* @tp_doc@ */ |
| 423 | "FibRand([seed = 0]): Fibonacci generator.", |
| 424 | |
| 425 | 0, /* @tp_traverse@ */ |
| 426 | 0, /* @tp_clear@ */ |
| 427 | 0, /* @tp_richcompare@ */ |
| 428 | 0, /* @tp_weaklistoffset@ */ |
| 429 | 0, /* @tp_iter@ */ |
| 430 | 0, /* @tp_iternext@ */ |
| 431 | 0, /* @tp_methods@ */ |
| 432 | 0, /* @tp_members@ */ |
| 433 | 0, /* @tp_getset@ */ |
| 434 | 0, /* @tp_base@ */ |
| 435 | 0, /* @tp_dict@ */ |
| 436 | 0, /* @tp_descr_get@ */ |
| 437 | 0, /* @tp_descr_set@ */ |
| 438 | 0, /* @tp_dictoffset@ */ |
| 439 | 0, /* @tp_init@ */ |
| 440 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 441 | fibrand_pynew, /* @tp_new@ */ |
| 442 | 0, /* @tp_free@ */ |
| 443 | 0 /* @tp_is_gc@ */ |
| 444 | }; |
| 445 | |
| 446 | /*----- True random generator ---------------------------------------------*/ |
| 447 | |
| 448 | static PyObject *trmeth_gate(PyObject *me) |
| 449 | { grand *r = GRAND_R(me); r->ops->misc(GRAND_R(me), RAND_GATE); RETURN_ME; } |
| 450 | |
| 451 | static PyObject *trmeth_stretch(PyObject *me) |
| 452 | { grand *r = GRAND_R(me); r->ops->misc(r, RAND_STRETCH); RETURN_ME; } |
| 453 | |
| 454 | static PyObject *trmeth_add(PyObject *me, PyObject *arg) |
| 455 | { |
| 456 | grand *r = GRAND_R(me); |
| 457 | struct bin in; unsigned goodbits; |
| 458 | if (!PyArg_ParseTuple(arg, "O&O&:add", convbin, &in, convuint, &goodbits)) |
| 459 | return (0); |
| 460 | r->ops->misc(r, RAND_ADD, in.p, (size_t)in.sz, goodbits); |
| 461 | RETURN_ME; |
| 462 | } |
| 463 | |
| 464 | static PyObject *trmeth_key(PyObject *me, PyObject *arg) |
| 465 | { |
| 466 | grand *r = GRAND_R(me); |
| 467 | struct bin k; |
| 468 | if (!PyArg_ParseTuple(arg, "O&:key", convbin, &k)) return (0); |
| 469 | r->ops->misc(r, RAND_KEY, k.p, (size_t)k.sz); |
| 470 | RETURN_ME; |
| 471 | } |
| 472 | |
| 473 | static PyObject *trmeth_seed(PyObject *me, PyObject *arg) |
| 474 | { |
| 475 | grand *r = GRAND_R(me); |
| 476 | unsigned u; |
| 477 | if (!PyArg_ParseTuple(arg, "O&:seed", convuint, &u)) return (0); |
| 478 | if (u > RAND_IBITS) VALERR("pointlessly large"); |
| 479 | r->ops->misc(r, RAND_SEED, u); |
| 480 | RETURN_ME; |
| 481 | end: |
| 482 | return (0); |
| 483 | } |
| 484 | |
| 485 | static PyObject *trmeth_timer(PyObject *me) |
| 486 | { grand *r = GRAND_R(me); r->ops->misc(r, RAND_TIMER); RETURN_ME; } |
| 487 | |
| 488 | static PyObject *truerand_pynew(PyTypeObject *ty, |
| 489 | PyObject *arg, PyObject *kw) |
| 490 | { |
| 491 | static const char *const kwlist[] = { 0 }; |
| 492 | grand *r; |
| 493 | PyObject *rc = 0; |
| 494 | if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", KWLIST)) goto end; |
| 495 | r = rand_create(); |
| 496 | r->ops->misc(r, RAND_NOISESRC, &noise_source); |
| 497 | r->ops->misc(r, RAND_SEED, 160); |
| 498 | rc = grand_dopywrap(ty, r, f_freeme); |
| 499 | end: |
| 500 | return (rc); |
| 501 | } |
| 502 | |
| 503 | static const PyMethodDef truerand_pymethods[] = { |
| 504 | #define METHNAME(name) trmeth_##name |
| 505 | NAMETH(gate, "R.gate()") |
| 506 | NAMETH(stretch, "R.stretch()") |
| 507 | METH (key, "R.key(BYTES)") |
| 508 | METH (seed, "R.seed(NBITS)") |
| 509 | METH (add, "R.add(BYTES, GOODBITS") |
| 510 | NAMETH(timer, "R.timer()") |
| 511 | #undef METHNAME |
| 512 | { 0 } |
| 513 | }; |
| 514 | |
| 515 | static PyObject *trget_goodbits(PyObject *me, void *hunoz) |
| 516 | { |
| 517 | grand *r = GRAND_R(me); |
| 518 | return (PyInt_FromLong(r->ops->misc(r, RAND_GOODBITS))); |
| 519 | } |
| 520 | |
| 521 | static const PyGetSetDef truerand_pygetset[] = { |
| 522 | #define GETSETNAME(op, name) tr##op##_##name |
| 523 | GET (goodbits, "R.goodbits -> good bits of entropy remaining") |
| 524 | #undef GETSETNAME |
| 525 | { 0 } |
| 526 | }; |
| 527 | |
| 528 | static const PyTypeObject truerand_pytype_skel = { |
| 529 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
| 530 | "TrueRand", /* @tp_name@ */ |
| 531 | sizeof(grand_pyobj), /* @tp_basicsize@ */ |
| 532 | 0, /* @tp_itemsize@ */ |
| 533 | |
| 534 | grand_pydealloc, /* @tp_dealloc@ */ |
| 535 | 0, /* @tp_print@ */ |
| 536 | 0, /* @tp_getattr@ */ |
| 537 | 0, /* @tp_setattr@ */ |
| 538 | 0, /* @tp_compare@ */ |
| 539 | 0, /* @tp_repr@ */ |
| 540 | 0, /* @tp_as_number@ */ |
| 541 | 0, /* @tp_as_sequence@ */ |
| 542 | 0, /* @tp_as_mapping@ */ |
| 543 | 0, /* @tp_hash@ */ |
| 544 | 0, /* @tp_call@ */ |
| 545 | 0, /* @tp_str@ */ |
| 546 | 0, /* @tp_getattro@ */ |
| 547 | 0, /* @tp_setattro@ */ |
| 548 | 0, /* @tp_as_buffer@ */ |
| 549 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 550 | Py_TPFLAGS_BASETYPE, |
| 551 | |
| 552 | /* @tp_doc@ */ |
| 553 | "TrueRand(): true random number source.", |
| 554 | |
| 555 | 0, /* @tp_traverse@ */ |
| 556 | 0, /* @tp_clear@ */ |
| 557 | 0, /* @tp_richcompare@ */ |
| 558 | 0, /* @tp_weaklistoffset@ */ |
| 559 | 0, /* @tp_iter@ */ |
| 560 | 0, /* @tp_iternext@ */ |
| 561 | PYMETHODS(truerand), /* @tp_methods@ */ |
| 562 | 0, /* @tp_members@ */ |
| 563 | PYGETSET(truerand), /* @tp_getset@ */ |
| 564 | 0, /* @tp_base@ */ |
| 565 | 0, /* @tp_dict@ */ |
| 566 | 0, /* @tp_descr_get@ */ |
| 567 | 0, /* @tp_descr_set@ */ |
| 568 | 0, /* @tp_dictoffset@ */ |
| 569 | 0, /* @tp_init@ */ |
| 570 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 571 | truerand_pynew, /* @tp_new@ */ |
| 572 | 0, /* @tp_free@ */ |
| 573 | 0 /* @tp_is_gc@ */ |
| 574 | }; |
| 575 | |
| 576 | /*----- Generators from symmetric encryption algorithms -------------------*/ |
| 577 | |
| 578 | static PyTypeObject *gccrand_pytype, *gcrand_pytype, *gclatinrand_pytype; |
| 579 | |
| 580 | typedef grand *gcrand_func(const void *, size_t sz); |
| 581 | typedef grand *gcirand_func(const void *, size_t sz, uint32); |
| 582 | typedef grand *gcnrand_func(const void *, size_t sz, const void *); |
| 583 | typedef grand *gcshakerand_func(const void *, size_t, |
| 584 | const void *, size_t, |
| 585 | const void *, size_t); |
| 586 | typedef grand *gcshafuncrand_func(const void *, size_t, |
| 587 | const void *, size_t); |
| 588 | typedef grand *gckmacrand_func(const void *, size_t, const void *, size_t); |
| 589 | typedef struct gccrand_info { |
| 590 | const char *name; |
| 591 | const octet *keysz; |
| 592 | unsigned f; |
| 593 | size_t noncesz; |
| 594 | gcrand_func *func; |
| 595 | } gccrand_info; |
| 596 | |
| 597 | #define RNGF_MASK 255u |
| 598 | |
| 599 | enum { |
| 600 | RNG_PLAIN = 0, |
| 601 | RNG_SEAL, |
| 602 | RNG_LATIN, |
| 603 | RNG_SHAKE, |
| 604 | RNG_KMAC |
| 605 | }; |
| 606 | |
| 607 | typedef struct gccrand_pyobj { |
| 608 | PyHeapTypeObject ty; |
| 609 | const gccrand_info *info; |
| 610 | } gccrand_pyobj; |
| 611 | #define GCCRAND_INFO(o) (((gccrand_pyobj *)(o))->info) |
| 612 | |
| 613 | #define GCCRAND_DEF(name, ksz, func, f, nsz) \ |
| 614 | static const gccrand_info func##_info = \ |
| 615 | { name, ksz, f, nsz, (gcrand_func *)func }; |
| 616 | RNGS(GCCRAND_DEF) |
| 617 | |
| 618 | static const gccrand_info *const gcrandtab[] = { |
| 619 | #define GCCRAND_ENTRY(name, ksz, func, f, nsz) &func##_info, |
| 620 | RNGS(GCCRAND_ENTRY) |
| 621 | 0 |
| 622 | }; |
| 623 | |
| 624 | static PyObject *gcrand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 625 | { |
| 626 | const gccrand_info *info = GCCRAND_INFO(ty); |
| 627 | static const char *const kwlist[] = { "key", 0 }; |
| 628 | struct bin k; |
| 629 | |
| 630 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&:new", KWLIST, convbin, &k)) |
| 631 | goto end; |
| 632 | if (keysz(k.sz, info->keysz) != k.sz) VALERR("bad key length"); |
| 633 | return (grand_dopywrap(ty, info->func(k.p, k.sz), f_freeme)); |
| 634 | end: |
| 635 | return (0); |
| 636 | } |
| 637 | |
| 638 | static PyObject *gcirand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 639 | { |
| 640 | const gccrand_info *info = GCCRAND_INFO(ty); |
| 641 | uint32 i = 0; |
| 642 | static const char *const kwlist[] = { "key", "i", 0 }; |
| 643 | struct bin k; |
| 644 | |
| 645 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&O&:new", KWLIST, |
| 646 | convbin, &k, convu32, &i)) |
| 647 | goto end; |
| 648 | if (keysz(k.sz, info->keysz) != k.sz) VALERR("bad key length"); |
| 649 | return (grand_dopywrap(ty, |
| 650 | ((gcirand_func *)info->func)(k.p, k.sz, i), |
| 651 | f_freeme)); |
| 652 | end: |
| 653 | return (0); |
| 654 | } |
| 655 | |
| 656 | static PyObject *gcnrand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 657 | { |
| 658 | const gccrand_info *info = GCCRAND_INFO(ty); |
| 659 | static const char *const kwlist[] = { "key", "nonce", 0 }; |
| 660 | struct bin k, n; |
| 661 | |
| 662 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&O&:new", KWLIST, |
| 663 | convbin, &k, convbin, &n)) |
| 664 | goto end; |
| 665 | if (keysz(k.sz, info->keysz) != k.sz) VALERR("bad key length"); |
| 666 | if (n.sz != info->noncesz) VALERR("bad nonce length"); |
| 667 | return (grand_dopywrap(ty, |
| 668 | ((gcnrand_func *)info->func)(k.p, k.sz, n.p), |
| 669 | f_freeme)); |
| 670 | end: |
| 671 | return (0); |
| 672 | } |
| 673 | |
| 674 | static PyObject *gcshakyrand_pynew(PyTypeObject *ty, |
| 675 | PyObject *arg, PyObject *kw) |
| 676 | { |
| 677 | const gccrand_info *info = GCCRAND_INFO(ty); |
| 678 | static const char |
| 679 | *const kwlist_shake[] = { "key", "func", "perso", 0 }, |
| 680 | *const kwlist_func[] = { "key", "perso", 0 }; |
| 681 | struct bin k, f = { 0, 0 }, p = { 0, 0 }; |
| 682 | |
| 683 | if ((info->f&RNGF_MASK) == RNG_SHAKE |
| 684 | ? !PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&O&:new", |
| 685 | (/*unconst*/ char **)kwlist_shake, |
| 686 | convbin, &k, |
| 687 | convbin, &f, convbin, &p) |
| 688 | : !PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&:new", |
| 689 | (/*unconst*/ char **)kwlist_func, |
| 690 | convbin, &k, convbin, &p)) |
| 691 | goto end; |
| 692 | if (keysz(k.sz, info->keysz) != k.sz) VALERR("bad key length"); |
| 693 | return (grand_dopywrap(ty, |
| 694 | (info->f&RNGF_MASK) == RNG_SHAKE |
| 695 | ? ((gcshakerand_func *)info->func)(f.p, f.sz, |
| 696 | p.p, p.sz, |
| 697 | k.p, k.sz) |
| 698 | : ((gcshafuncrand_func *)info->func)(p.p, p.sz, |
| 699 | k.p, k.sz), |
| 700 | f_freeme)); |
| 701 | end: |
| 702 | return (0); |
| 703 | } |
| 704 | |
| 705 | static PyObject *gccrand_pywrap(const gccrand_info *info) |
| 706 | { |
| 707 | gccrand_pyobj *g = newtype(gccrand_pytype, 0, info->name); |
| 708 | g->info = info; |
| 709 | g->ty.ht_type.tp_basicsize = sizeof(grand_pyobj); |
| 710 | switch (info->f&RNGF_MASK) { |
| 711 | case RNG_LATIN: g->ty.ht_type.tp_base = gclatinrand_pytype; break; |
| 712 | default: g->ty.ht_type.tp_base = gcrand_pytype; break; |
| 713 | } |
| 714 | Py_INCREF(g->ty.ht_type.tp_base); |
| 715 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
| 716 | Py_TPFLAGS_BASETYPE | |
| 717 | Py_TPFLAGS_HEAPTYPE); |
| 718 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; |
| 719 | g->ty.ht_type.tp_free = 0; |
| 720 | switch (info->f&RNGF_MASK) { |
| 721 | case RNG_LATIN: g->ty.ht_type.tp_new = gcnrand_pynew; break; |
| 722 | case RNG_SEAL: g->ty.ht_type.tp_new = gcirand_pynew; break; |
| 723 | case RNG_SHAKE: case RNG_KMAC: |
| 724 | g->ty.ht_type.tp_new = gcshakyrand_pynew; break; |
| 725 | default: g->ty.ht_type.tp_new = gcrand_pynew; break; |
| 726 | } |
| 727 | typeready(&g->ty.ht_type); |
| 728 | return ((PyObject *)g); |
| 729 | } |
| 730 | |
| 731 | static PyObject *gccrget_name(PyObject *me, void *hunoz) |
| 732 | { return (TEXT_FROMSTR(GCCRAND_INFO(me)->name)); } |
| 733 | static PyObject *gccrget_keysz(PyObject *me, void *hunoz) |
| 734 | { return (keysz_pywrap(GCCRAND_INFO(me)->keysz)); } |
| 735 | |
| 736 | static PyObject *gclrmeth_tell(PyObject *me) |
| 737 | { |
| 738 | grand *r = GRAND_R(me); |
| 739 | PyObject *rc = 0; |
| 740 | kludge64 off; |
| 741 | |
| 742 | r->ops->misc(r, SALSA20_TELLU64, &off); |
| 743 | rc = getk64(off); |
| 744 | return (rc); |
| 745 | } |
| 746 | |
| 747 | static PyObject *gclrmeth_seek(PyObject *me, PyObject *arg) |
| 748 | { |
| 749 | grand *r = GRAND_R(me); |
| 750 | kludge64 off; |
| 751 | |
| 752 | if (!PyArg_ParseTuple(arg, "O&:seek", convk64, &off)) return (0); |
| 753 | r->ops->misc(r, SALSA20_SEEKU64, off); |
| 754 | RETURN_ME; |
| 755 | } |
| 756 | |
| 757 | static const PyGetSetDef gccrand_pygetset[] = { |
| 758 | #define GETSETNAME(op, name) gccr##op##_##name |
| 759 | GET (keysz, "CR.keysz -> acceptable key sizes") |
| 760 | GET (name, "CR.name -> name of this kind of generator") |
| 761 | #undef GETSETNAME |
| 762 | { 0 } |
| 763 | }; |
| 764 | |
| 765 | static const PyMethodDef gclatinrand_pymethods[] = { |
| 766 | #define METHNAME(name) gclrmeth_##name |
| 767 | NAMETH(tell, "R.tell() -> OFF") |
| 768 | METH (seek, "R.seek(OFF)") |
| 769 | #undef METHNAME |
| 770 | { 0 } |
| 771 | }; |
| 772 | |
| 773 | static const PyTypeObject gccrand_pytype_skel = { |
| 774 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
| 775 | "GCCRand", /* @tp_name@ */ |
| 776 | sizeof(gccrand_pyobj), /* @tp_basicsize@ */ |
| 777 | 0, /* @tp_itemsize@ */ |
| 778 | |
| 779 | 0, /* @tp_dealloc@ */ |
| 780 | 0, /* @tp_print@ */ |
| 781 | 0, /* @tp_getattr@ */ |
| 782 | 0, /* @tp_setattr@ */ |
| 783 | 0, /* @tp_compare@ */ |
| 784 | 0, /* @tp_repr@ */ |
| 785 | 0, /* @tp_as_number@ */ |
| 786 | 0, /* @tp_as_sequence@ */ |
| 787 | 0, /* @tp_as_mapping@ */ |
| 788 | 0, /* @tp_hash@ */ |
| 789 | 0, /* @tp_call@ */ |
| 790 | 0, /* @tp_str@ */ |
| 791 | 0, /* @tp_getattro@ */ |
| 792 | 0, /* @tp_setattro@ */ |
| 793 | 0, /* @tp_as_buffer@ */ |
| 794 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 795 | Py_TPFLAGS_BASETYPE, |
| 796 | |
| 797 | /* @tp_doc@ */ |
| 798 | "Metaclass for symmetric crypto-based generators.", |
| 799 | |
| 800 | 0, /* @tp_traverse@ */ |
| 801 | 0, /* @tp_clear@ */ |
| 802 | 0, /* @tp_richcompare@ */ |
| 803 | 0, /* @tp_weaklistoffset@ */ |
| 804 | 0, /* @tp_iter@ */ |
| 805 | 0, /* @tp_iternext@ */ |
| 806 | 0, /* @tp_methods@ */ |
| 807 | 0, /* @tp_members@ */ |
| 808 | PYGETSET(gccrand), /* @tp_getset@ */ |
| 809 | 0, /* @tp_base@ */ |
| 810 | 0, /* @tp_dict@ */ |
| 811 | 0, /* @tp_descr_get@ */ |
| 812 | 0, /* @tp_descr_set@ */ |
| 813 | 0, /* @tp_dictoffset@ */ |
| 814 | 0, /* @tp_init@ */ |
| 815 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 816 | abstract_pynew, /* @tp_new@ */ |
| 817 | 0, /* @tp_free@ */ |
| 818 | 0 /* @tp_is_gc@ */ |
| 819 | }; |
| 820 | |
| 821 | static const PyTypeObject gcrand_pytype_skel = { |
| 822 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
| 823 | "GCRand", /* @tp_name@ */ |
| 824 | sizeof(grand_pyobj), /* @tp_basicsize@ */ |
| 825 | 0, /* @tp_itemsize@ */ |
| 826 | |
| 827 | grand_pydealloc, /* @tp_dealloc@ */ |
| 828 | 0, /* @tp_print@ */ |
| 829 | 0, /* @tp_getattr@ */ |
| 830 | 0, /* @tp_setattr@ */ |
| 831 | 0, /* @tp_compare@ */ |
| 832 | 0, /* @tp_repr@ */ |
| 833 | 0, /* @tp_as_number@ */ |
| 834 | 0, /* @tp_as_sequence@ */ |
| 835 | 0, /* @tp_as_mapping@ */ |
| 836 | 0, /* @tp_hash@ */ |
| 837 | 0, /* @tp_call@ */ |
| 838 | 0, /* @tp_str@ */ |
| 839 | 0, /* @tp_getattro@ */ |
| 840 | 0, /* @tp_setattro@ */ |
| 841 | 0, /* @tp_as_buffer@ */ |
| 842 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 843 | Py_TPFLAGS_BASETYPE, |
| 844 | |
| 845 | /* @tp_doc@ */ |
| 846 | "Abstract base class for symmetric crypto-based generators.", |
| 847 | |
| 848 | 0, /* @tp_traverse@ */ |
| 849 | 0, /* @tp_clear@ */ |
| 850 | 0, /* @tp_richcompare@ */ |
| 851 | 0, /* @tp_weaklistoffset@ */ |
| 852 | 0, /* @tp_iter@ */ |
| 853 | 0, /* @tp_iternext@ */ |
| 854 | 0, /* @tp_methods@ */ |
| 855 | 0, /* @tp_members@ */ |
| 856 | 0, /* @tp_getset@ */ |
| 857 | 0, /* @tp_base@ */ |
| 858 | 0, /* @tp_dict@ */ |
| 859 | 0, /* @tp_descr_get@ */ |
| 860 | 0, /* @tp_descr_set@ */ |
| 861 | 0, /* @tp_dictoffset@ */ |
| 862 | 0, /* @tp_init@ */ |
| 863 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 864 | abstract_pynew, /* @tp_new@ */ |
| 865 | 0, /* @tp_free@ */ |
| 866 | 0 /* @tp_is_gc@ */ |
| 867 | }; |
| 868 | |
| 869 | static const PyTypeObject gclatinrand_pytype_skel = { |
| 870 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
| 871 | "GCLatinRand", /* @tp_name@ */ |
| 872 | sizeof(grand_pyobj), /* @tp_basicsize@ */ |
| 873 | 0, /* @tp_itemsize@ */ |
| 874 | |
| 875 | grand_pydealloc, /* @tp_dealloc@ */ |
| 876 | 0, /* @tp_print@ */ |
| 877 | 0, /* @tp_getattr@ */ |
| 878 | 0, /* @tp_setattr@ */ |
| 879 | 0, /* @tp_compare@ */ |
| 880 | 0, /* @tp_repr@ */ |
| 881 | 0, /* @tp_as_number@ */ |
| 882 | 0, /* @tp_as_sequence@ */ |
| 883 | 0, /* @tp_as_mapping@ */ |
| 884 | 0, /* @tp_hash@ */ |
| 885 | 0, /* @tp_call@ */ |
| 886 | 0, /* @tp_str@ */ |
| 887 | 0, /* @tp_getattro@ */ |
| 888 | 0, /* @tp_setattro@ */ |
| 889 | 0, /* @tp_as_buffer@ */ |
| 890 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 891 | Py_TPFLAGS_BASETYPE, |
| 892 | |
| 893 | /* @tp_doc@ */ |
| 894 | "Abstract base class for symmetric crypto-based generators.", |
| 895 | |
| 896 | 0, /* @tp_traverse@ */ |
| 897 | 0, /* @tp_clear@ */ |
| 898 | 0, /* @tp_richcompare@ */ |
| 899 | 0, /* @tp_weaklistoffset@ */ |
| 900 | 0, /* @tp_iter@ */ |
| 901 | 0, /* @tp_iternext@ */ |
| 902 | PYMETHODS(gclatinrand), /* @tp_methods@ */ |
| 903 | 0, /* @tp_members@ */ |
| 904 | 0, /* @tp_getset@ */ |
| 905 | 0, /* @tp_base@ */ |
| 906 | 0, /* @tp_dict@ */ |
| 907 | 0, /* @tp_descr_get@ */ |
| 908 | 0, /* @tp_descr_set@ */ |
| 909 | 0, /* @tp_dictoffset@ */ |
| 910 | 0, /* @tp_init@ */ |
| 911 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 912 | abstract_pynew, /* @tp_new@ */ |
| 913 | 0, /* @tp_free@ */ |
| 914 | 0 /* @tp_is_gc@ */ |
| 915 | }; |
| 916 | |
| 917 | /*----- SSL and TLS generators --------------------------------------------*/ |
| 918 | |
| 919 | static PyObject *sslprf_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 920 | { |
| 921 | struct bin k, s; |
| 922 | const gchash *hco = &md5, *hci = &sha; |
| 923 | PyObject *rc = 0; |
| 924 | static const char *const kwlist[] = { "key", "seed", "ohash", "ihash", 0 }; |
| 925 | |
| 926 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&O&|O&O&:new", KWLIST, |
| 927 | convbin, &k, convbin, &s, |
| 928 | convgchash, &hco, convgchash, &hci)) |
| 929 | goto end; |
| 930 | rc = grand_dopywrap(ty, sslprf_rand(hco, hci, k.p, k.sz, s.p, s.sz), |
| 931 | f_freeme); |
| 932 | end: |
| 933 | return (rc); |
| 934 | } |
| 935 | |
| 936 | static PyObject *tlsdx_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 937 | { |
| 938 | struct bin k, s; |
| 939 | const gcmac *mc = &sha_hmac; |
| 940 | PyObject *rc = 0; |
| 941 | static const char *const kwlist[] = { "key", "seed", "mac", 0 }; |
| 942 | |
| 943 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&O&|O&:new", KWLIST, |
| 944 | convbin, &k, convbin, &s, |
| 945 | convgcmac, &mc)) |
| 946 | goto end; |
| 947 | rc = grand_dopywrap(ty, tlsdx_rand(mc, k.p, k.sz, s.p, s.sz), f_freeme); |
| 948 | end: |
| 949 | return (rc); |
| 950 | } |
| 951 | |
| 952 | static PyObject *tlsprf_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 953 | { |
| 954 | struct bin k, s; |
| 955 | const gcmac *mcl = &md5_hmac, *mcr = &sha_hmac; |
| 956 | PyObject *rc = 0; |
| 957 | static const char *const kwlist[] = { "key", "seed", "lmac", "rmac", 0 }; |
| 958 | |
| 959 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&O&|O&O&:new", KWLIST, |
| 960 | convbin, &k, convbin, &s, |
| 961 | convgcmac, &mcl, convgcmac, &mcr)) |
| 962 | goto end; |
| 963 | rc = grand_dopywrap(ty, tlsprf_rand(mcl, mcr, k.p, k.sz, s.p, s.sz), |
| 964 | f_freeme); |
| 965 | end: |
| 966 | return (rc); |
| 967 | } |
| 968 | |
| 969 | static const PyTypeObject sslprf_pytype_skel = { |
| 970 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
| 971 | "SSLRand", /* @tp_name@ */ |
| 972 | sizeof(grand_pyobj), /* @tp_basicsize@ */ |
| 973 | 0, /* @tp_itemsize@ */ |
| 974 | |
| 975 | grand_pydealloc, /* @tp_dealloc@ */ |
| 976 | 0, /* @tp_print@ */ |
| 977 | 0, /* @tp_getattr@ */ |
| 978 | 0, /* @tp_setattr@ */ |
| 979 | 0, /* @tp_compare@ */ |
| 980 | 0, /* @tp_repr@ */ |
| 981 | 0, /* @tp_as_number@ */ |
| 982 | 0, /* @tp_as_sequence@ */ |
| 983 | 0, /* @tp_as_mapping@ */ |
| 984 | 0, /* @tp_hash@ */ |
| 985 | 0, /* @tp_call@ */ |
| 986 | 0, /* @tp_str@ */ |
| 987 | 0, /* @tp_getattro@ */ |
| 988 | 0, /* @tp_setattro@ */ |
| 989 | 0, /* @tp_as_buffer@ */ |
| 990 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 991 | Py_TPFLAGS_BASETYPE, |
| 992 | |
| 993 | /* @tp_doc@ */ |
| 994 | "SSLRand(KEY, SEED, [ohash = md5], [ihash = sha]):\n" |
| 995 | " RNG for SSL master secret.", |
| 996 | |
| 997 | 0, /* @tp_traverse@ */ |
| 998 | 0, /* @tp_clear@ */ |
| 999 | 0, /* @tp_richcompare@ */ |
| 1000 | 0, /* @tp_weaklistoffset@ */ |
| 1001 | 0, /* @tp_iter@ */ |
| 1002 | 0, /* @tp_iternext@ */ |
| 1003 | 0, /* @tp_methods@ */ |
| 1004 | 0, /* @tp_members@ */ |
| 1005 | 0, /* @tp_getset@ */ |
| 1006 | 0, /* @tp_base@ */ |
| 1007 | 0, /* @tp_dict@ */ |
| 1008 | 0, /* @tp_descr_get@ */ |
| 1009 | 0, /* @tp_descr_set@ */ |
| 1010 | 0, /* @tp_dictoffset@ */ |
| 1011 | 0, /* @tp_init@ */ |
| 1012 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1013 | sslprf_pynew, /* @tp_new@ */ |
| 1014 | 0, /* @tp_free@ */ |
| 1015 | 0 /* @tp_is_gc@ */ |
| 1016 | }; |
| 1017 | |
| 1018 | static const PyTypeObject tlsdx_pytype_skel = { |
| 1019 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
| 1020 | "TLSDataExpansion", /* @tp_name@ */ |
| 1021 | sizeof(grand_pyobj), /* @tp_basicsize@ */ |
| 1022 | 0, /* @tp_itemsize@ */ |
| 1023 | |
| 1024 | grand_pydealloc, /* @tp_dealloc@ */ |
| 1025 | 0, /* @tp_print@ */ |
| 1026 | 0, /* @tp_getattr@ */ |
| 1027 | 0, /* @tp_setattr@ */ |
| 1028 | 0, /* @tp_compare@ */ |
| 1029 | 0, /* @tp_repr@ */ |
| 1030 | 0, /* @tp_as_number@ */ |
| 1031 | 0, /* @tp_as_sequence@ */ |
| 1032 | 0, /* @tp_as_mapping@ */ |
| 1033 | 0, /* @tp_hash@ */ |
| 1034 | 0, /* @tp_call@ */ |
| 1035 | 0, /* @tp_str@ */ |
| 1036 | 0, /* @tp_getattro@ */ |
| 1037 | 0, /* @tp_setattro@ */ |
| 1038 | 0, /* @tp_as_buffer@ */ |
| 1039 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 1040 | Py_TPFLAGS_BASETYPE, |
| 1041 | |
| 1042 | /* @tp_doc@ */ |
| 1043 | "TLSDataExpansion(KEY, SEED, [mac = sha_hmac]):\n" |
| 1044 | " TLS data expansion function.", |
| 1045 | |
| 1046 | 0, /* @tp_traverse@ */ |
| 1047 | 0, /* @tp_clear@ */ |
| 1048 | 0, /* @tp_richcompare@ */ |
| 1049 | 0, /* @tp_weaklistoffset@ */ |
| 1050 | 0, /* @tp_iter@ */ |
| 1051 | 0, /* @tp_iternext@ */ |
| 1052 | 0, /* @tp_methods@ */ |
| 1053 | 0, /* @tp_members@ */ |
| 1054 | 0, /* @tp_getset@ */ |
| 1055 | 0, /* @tp_base@ */ |
| 1056 | 0, /* @tp_dict@ */ |
| 1057 | 0, /* @tp_descr_get@ */ |
| 1058 | 0, /* @tp_descr_set@ */ |
| 1059 | 0, /* @tp_dictoffset@ */ |
| 1060 | 0, /* @tp_init@ */ |
| 1061 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1062 | tlsdx_pynew, /* @tp_new@ */ |
| 1063 | 0, /* @tp_free@ */ |
| 1064 | 0 /* @tp_is_gc@ */ |
| 1065 | }; |
| 1066 | |
| 1067 | static const PyTypeObject tlsprf_pytype_skel = { |
| 1068 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
| 1069 | "TLSPRF", /* @tp_name@ */ |
| 1070 | sizeof(grand_pyobj), /* @tp_basicsize@ */ |
| 1071 | 0, /* @tp_itemsize@ */ |
| 1072 | |
| 1073 | grand_pydealloc, /* @tp_dealloc@ */ |
| 1074 | 0, /* @tp_print@ */ |
| 1075 | 0, /* @tp_getattr@ */ |
| 1076 | 0, /* @tp_setattr@ */ |
| 1077 | 0, /* @tp_compare@ */ |
| 1078 | 0, /* @tp_repr@ */ |
| 1079 | 0, /* @tp_as_number@ */ |
| 1080 | 0, /* @tp_as_sequence@ */ |
| 1081 | 0, /* @tp_as_mapping@ */ |
| 1082 | 0, /* @tp_hash@ */ |
| 1083 | 0, /* @tp_call@ */ |
| 1084 | 0, /* @tp_str@ */ |
| 1085 | 0, /* @tp_getattro@ */ |
| 1086 | 0, /* @tp_setattro@ */ |
| 1087 | 0, /* @tp_as_buffer@ */ |
| 1088 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 1089 | Py_TPFLAGS_BASETYPE, |
| 1090 | |
| 1091 | /* @tp_doc@ */ |
| 1092 | "TLSPRF(KEY, SEED, [lmac = md5_hmac], [rmac = sha_hmac]):\n" |
| 1093 | " TLS pseudorandom function.", |
| 1094 | |
| 1095 | 0, /* @tp_traverse@ */ |
| 1096 | 0, /* @tp_clear@ */ |
| 1097 | 0, /* @tp_richcompare@ */ |
| 1098 | 0, /* @tp_weaklistoffset@ */ |
| 1099 | 0, /* @tp_iter@ */ |
| 1100 | 0, /* @tp_iternext@ */ |
| 1101 | 0, /* @tp_methods@ */ |
| 1102 | 0, /* @tp_members@ */ |
| 1103 | 0, /* @tp_getset@ */ |
| 1104 | 0, /* @tp_base@ */ |
| 1105 | 0, /* @tp_dict@ */ |
| 1106 | 0, /* @tp_descr_get@ */ |
| 1107 | 0, /* @tp_descr_set@ */ |
| 1108 | 0, /* @tp_dictoffset@ */ |
| 1109 | 0, /* @tp_init@ */ |
| 1110 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1111 | tlsprf_pynew, /* @tp_new@ */ |
| 1112 | 0, /* @tp_free@ */ |
| 1113 | 0 /* @tp_is_gc@ */ |
| 1114 | }; |
| 1115 | |
| 1116 | /*----- DSA generator -----------------------------------------------------*/ |
| 1117 | |
| 1118 | static PyObject *dsarand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 1119 | { |
| 1120 | struct bin in; |
| 1121 | PyObject *rc = 0; |
| 1122 | static const char *const kwlist[] = { "seed", 0 }; |
| 1123 | |
| 1124 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&:new", KWLIST, convbin, &in)) |
| 1125 | goto end; |
| 1126 | rc = grand_dopywrap(ty, dsarand_create(in.p, in.sz), f_freeme); |
| 1127 | end: |
| 1128 | return (rc); |
| 1129 | } |
| 1130 | |
| 1131 | static PyObject *drget_seed(PyObject *me, void *hunoz) |
| 1132 | { |
| 1133 | grand *r = GRAND_R(me); |
| 1134 | int n = r->ops->misc(r, DSARAND_SEEDSZ); |
| 1135 | PyObject *rc = bytestring_pywrap(0, n); |
| 1136 | r->ops->misc(r, DSARAND_GETSEED, BIN_PTR(rc)); |
| 1137 | return (rc); |
| 1138 | } |
| 1139 | |
| 1140 | static const PyGetSetDef dsarand_pygetset[] = { |
| 1141 | #define GETSETNAME(op, name) dr##op##_##name |
| 1142 | GET (seed, "R.seed -> current generator seed") |
| 1143 | #undef GETSETNAME |
| 1144 | { 0 } |
| 1145 | }; |
| 1146 | |
| 1147 | static const PyTypeObject dsarand_pytype_skel = { |
| 1148 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
| 1149 | "DSARand", /* @tp_name@ */ |
| 1150 | sizeof(grand_pyobj), /* @tp_basicsize@ */ |
| 1151 | 0, /* @tp_itemsize@ */ |
| 1152 | |
| 1153 | grand_pydealloc, /* @tp_dealloc@ */ |
| 1154 | 0, /* @tp_print@ */ |
| 1155 | 0, /* @tp_getattr@ */ |
| 1156 | 0, /* @tp_setattr@ */ |
| 1157 | 0, /* @tp_compare@ */ |
| 1158 | 0, /* @tp_repr@ */ |
| 1159 | 0, /* @tp_as_number@ */ |
| 1160 | 0, /* @tp_as_sequence@ */ |
| 1161 | 0, /* @tp_as_mapping@ */ |
| 1162 | 0, /* @tp_hash@ */ |
| 1163 | 0, /* @tp_call@ */ |
| 1164 | 0, /* @tp_str@ */ |
| 1165 | 0, /* @tp_getattro@ */ |
| 1166 | 0, /* @tp_setattro@ */ |
| 1167 | 0, /* @tp_as_buffer@ */ |
| 1168 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 1169 | Py_TPFLAGS_BASETYPE, |
| 1170 | |
| 1171 | /* @tp_doc@ */ |
| 1172 | "DSARand(SEED): pseudorandom number generator for DSA parameters.", |
| 1173 | |
| 1174 | 0, /* @tp_traverse@ */ |
| 1175 | 0, /* @tp_clear@ */ |
| 1176 | 0, /* @tp_richcompare@ */ |
| 1177 | 0, /* @tp_weaklistoffset@ */ |
| 1178 | 0, /* @tp_iter@ */ |
| 1179 | 0, /* @tp_iternext@ */ |
| 1180 | 0, /* @tp_methods@ */ |
| 1181 | 0, /* @tp_members@ */ |
| 1182 | PYGETSET(dsarand), /* @tp_getset@ */ |
| 1183 | 0, /* @tp_base@ */ |
| 1184 | 0, /* @tp_dict@ */ |
| 1185 | 0, /* @tp_descr_get@ */ |
| 1186 | 0, /* @tp_descr_set@ */ |
| 1187 | 0, /* @tp_dictoffset@ */ |
| 1188 | 0, /* @tp_init@ */ |
| 1189 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1190 | dsarand_pynew, /* @tp_new@ */ |
| 1191 | 0, /* @tp_free@ */ |
| 1192 | 0 /* @tp_is_gc@ */ |
| 1193 | }; |
| 1194 | |
| 1195 | /*----- Blum-Blum-Shub generator ------------------------------------------*/ |
| 1196 | |
| 1197 | static PyObject *bbs_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 1198 | { |
| 1199 | mp *n = 0, *x = MP_TWO; |
| 1200 | PyObject *rc = 0; |
| 1201 | static const char *const kwlist[] = { "n", "x", 0 }; |
| 1202 | |
| 1203 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&:new", KWLIST, |
| 1204 | convmp, &n, convmp, &x)) |
| 1205 | goto end; |
| 1206 | rc = grand_dopywrap(ty, bbs_rand(n, x), f_freeme); |
| 1207 | end: |
| 1208 | mp_drop(n); |
| 1209 | mp_drop(x); |
| 1210 | return (rc); |
| 1211 | } |
| 1212 | |
| 1213 | static PyObject *bbsmeth_step(PyObject *me) |
| 1214 | { grand *r = GRAND_R(me); r->ops->misc(r, BBS_STEP); RETURN_ME; } |
| 1215 | |
| 1216 | static PyObject *bbsmeth_bits(PyObject *me, PyObject *arg) |
| 1217 | { |
| 1218 | grand *r = GRAND_R(me); unsigned n; uint32 w; |
| 1219 | if (!PyArg_ParseTuple(arg, "O&:bits", convuint, &n)) goto end; |
| 1220 | if (n > 32) VALERR("can't get more than 32 bits"); |
| 1221 | r->ops->misc(r, BBS_BITS, n, &w); return (getulong(w)); |
| 1222 | end: |
| 1223 | return (0); |
| 1224 | } |
| 1225 | |
| 1226 | static PyObject *bbsmeth_wrap(PyObject *me) |
| 1227 | { grand *r = GRAND_R(me); r->ops->misc(r, BBS_WRAP); RETURN_ME; } |
| 1228 | |
| 1229 | static PyObject *bbsget_n(PyObject *me, void *hunoz) |
| 1230 | { |
| 1231 | mp *x = MP_NEW; grand *r = GRAND_R(me); |
| 1232 | r->ops->misc(r, BBS_MOD, &x); return (mp_pywrap(x)); |
| 1233 | } |
| 1234 | |
| 1235 | static PyObject *bbsget_x(PyObject *me, void *hunoz) |
| 1236 | { |
| 1237 | mp *x = MP_NEW; grand *r = GRAND_R(me); |
| 1238 | r->ops->misc(r, BBS_STATE, &x); return (mp_pywrap(x)); |
| 1239 | } |
| 1240 | |
| 1241 | static int bbsset_x(PyObject *me, PyObject *val, void *hunoz) |
| 1242 | { |
| 1243 | mp *x = 0; grand *r = GRAND_R(me); int rc = -1; if (!val) NIERR("__del__"); |
| 1244 | if ((x = getmp(val)) == 0) goto end; |
| 1245 | r->ops->misc(r, BBS_SET, x); rc = 0; |
| 1246 | end: mp_drop(x); return (rc); |
| 1247 | } |
| 1248 | |
| 1249 | static PyObject *bbsget_stepsz(PyObject *me, void *hunoz) |
| 1250 | { |
| 1251 | grand *r = GRAND_R(me); |
| 1252 | return (PyInt_FromLong(r->ops->misc(r, BBS_STEPSZ))); |
| 1253 | } |
| 1254 | |
| 1255 | static const PyMethodDef bbs_pymethods[] = { |
| 1256 | #define METHNAME(name) bbsmeth_##name |
| 1257 | NAMETH(step, "R.step(): steps the generator (not useful)") |
| 1258 | METH (bits, "R.bits(N) -> W: returns N bits (<= 32) from the generator") |
| 1259 | NAMETH(wrap, "R.wrap(): flushes unused bits in internal buffer") |
| 1260 | #undef METHNAME |
| 1261 | { 0 } |
| 1262 | }; |
| 1263 | |
| 1264 | static const PyGetSetDef bbs_pygetset[] = { |
| 1265 | #define GETSETNAME(op, name) bbs##op##_##name |
| 1266 | GET (n, "R.n -> Blum modulus") |
| 1267 | GETSET(x, "R.x -> current seed value") |
| 1268 | GET (stepsz, "R.stepsz -> number of bits generated per step") |
| 1269 | #undef GETSETNAME |
| 1270 | { 0 } |
| 1271 | }; |
| 1272 | |
| 1273 | static const PyTypeObject bbs_pytype_skel = { |
| 1274 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
| 1275 | "BlumBlumShub", /* @tp_name@ */ |
| 1276 | sizeof(grand_pyobj), /* @tp_basicsize@ */ |
| 1277 | 0, /* @tp_itemsize@ */ |
| 1278 | |
| 1279 | grand_pydealloc, /* @tp_dealloc@ */ |
| 1280 | 0, /* @tp_print@ */ |
| 1281 | 0, /* @tp_getattr@ */ |
| 1282 | 0, /* @tp_setattr@ */ |
| 1283 | 0, /* @tp_compare@ */ |
| 1284 | 0, /* @tp_repr@ */ |
| 1285 | 0, /* @tp_as_number@ */ |
| 1286 | 0, /* @tp_as_sequence@ */ |
| 1287 | 0, /* @tp_as_mapping@ */ |
| 1288 | 0, /* @tp_hash@ */ |
| 1289 | 0, /* @tp_call@ */ |
| 1290 | 0, /* @tp_str@ */ |
| 1291 | 0, /* @tp_getattro@ */ |
| 1292 | 0, /* @tp_setattro@ */ |
| 1293 | 0, /* @tp_as_buffer@ */ |
| 1294 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 1295 | Py_TPFLAGS_BASETYPE, |
| 1296 | |
| 1297 | /* @tp_doc@ */ |
| 1298 | "BlumBlumShub(N, [x = 2]): Blum-Blum-Shub pseudorandom number generator.", |
| 1299 | |
| 1300 | 0, /* @tp_traverse@ */ |
| 1301 | 0, /* @tp_clear@ */ |
| 1302 | 0, /* @tp_richcompare@ */ |
| 1303 | 0, /* @tp_weaklistoffset@ */ |
| 1304 | 0, /* @tp_iter@ */ |
| 1305 | 0, /* @tp_iternext@ */ |
| 1306 | PYMETHODS(bbs), /* @tp_methods@ */ |
| 1307 | 0, /* @tp_members@ */ |
| 1308 | PYGETSET(bbs), /* @tp_getset@ */ |
| 1309 | 0, /* @tp_base@ */ |
| 1310 | 0, /* @tp_dict@ */ |
| 1311 | 0, /* @tp_descr_get@ */ |
| 1312 | 0, /* @tp_descr_set@ */ |
| 1313 | 0, /* @tp_dictoffset@ */ |
| 1314 | 0, /* @tp_init@ */ |
| 1315 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1316 | bbs_pynew, /* @tp_new@ */ |
| 1317 | 0, /* @tp_free@ */ |
| 1318 | 0 /* @tp_is_gc@ */ |
| 1319 | }; |
| 1320 | |
| 1321 | typedef struct bbspriv_pyobj { |
| 1322 | grand_pyobj gr; |
| 1323 | bbs_priv bp; |
| 1324 | } bbspriv_pyobj; |
| 1325 | |
| 1326 | #define BBSPRIV_BP(o) (&((bbspriv_pyobj *)(o))->bp) |
| 1327 | |
| 1328 | static PyObject *bbspriv_pynew(PyTypeObject *ty, |
| 1329 | PyObject *arg, PyObject *kw) |
| 1330 | { |
| 1331 | mp *p = 0, *q = 0, *n = 0, *x = MP_TWO; |
| 1332 | bbspriv_pyobj *rc = 0; |
| 1333 | static const char *const kwlist[] = { "n", "p", "q", "seed", 0 }; |
| 1334 | |
| 1335 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&O&O&O&:new", KWLIST, |
| 1336 | convmp, &n, convmp, &p, convmp, &q, |
| 1337 | convmp, &x)) |
| 1338 | goto end; |
| 1339 | if (!n + !p + !q > 1) VALERR("must specify at least two of n, p, q"); |
| 1340 | if (!n) n = mp_mul(MP_NEW, p, q); |
| 1341 | else if (!p) mp_div(&p, 0, n, q); |
| 1342 | else if (!q) mp_div(&q, 0, n, p); |
| 1343 | rc = (bbspriv_pyobj *)ty->tp_alloc(ty, 0); |
| 1344 | rc->gr.r = bbs_rand(n, x); |
| 1345 | rc->gr.f = f_freeme; |
| 1346 | rc->bp.p = MP_COPY(p); |
| 1347 | rc->bp.q = MP_COPY(q); |
| 1348 | rc->bp.n = MP_COPY(n); |
| 1349 | end: |
| 1350 | mp_drop(p); mp_drop(q); mp_drop(n); mp_drop(x); |
| 1351 | return ((PyObject *)rc); |
| 1352 | } |
| 1353 | |
| 1354 | static PyObject *bpmeth_generate(PyObject *me, PyObject *arg, PyObject *kw) |
| 1355 | { |
| 1356 | bbs_priv bp = { 0 }; |
| 1357 | mp *x = MP_TWO; |
| 1358 | struct excinfo exc = EXCINFO_INIT; |
| 1359 | pypgev evt = { { 0 } }; |
| 1360 | unsigned nbits, n = 0; |
| 1361 | grand *r = &rand_global; |
| 1362 | static const char *const kwlist[] = |
| 1363 | { "nbits", "event", "rng", "nsteps", "seed", 0 }; |
| 1364 | bbspriv_pyobj *rc = 0; |
| 1365 | |
| 1366 | evt.exc = &exc; |
| 1367 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&O&O&O&:generate", KWLIST, |
| 1368 | convuint, &nbits, convpgev, &evt, |
| 1369 | convgrand, &r, convuint, &n, convmp, &x)) |
| 1370 | goto end; |
| 1371 | if (bbs_gen(&bp, nbits, r, n, evt.ev.proc, evt.ev.ctx)) |
| 1372 | PGENERR(&exc); |
| 1373 | rc = PyObject_New(bbspriv_pyobj, bbspriv_pytype); |
| 1374 | rc->gr.r = bbs_rand(bp.n, x); |
| 1375 | rc->gr.f = f_freeme; |
| 1376 | rc->bp.p = MP_COPY(bp.p); |
| 1377 | rc->bp.q = MP_COPY(bp.q); |
| 1378 | rc->bp.n = MP_COPY(bp.n); |
| 1379 | end: |
| 1380 | mp_drop(bp.p); mp_drop(bp.q); mp_drop(bp.n); mp_drop(x); |
| 1381 | return ((PyObject *)rc); |
| 1382 | } |
| 1383 | |
| 1384 | static void bbspriv_pydealloc(PyObject *me) |
| 1385 | { |
| 1386 | bbs_priv *bp = BBSPRIV_BP(me); |
| 1387 | mp_drop(bp->n); |
| 1388 | mp_drop(bp->p); |
| 1389 | mp_drop(bp->q); |
| 1390 | grand_pydealloc(me); |
| 1391 | } |
| 1392 | |
| 1393 | static PyObject *bpmeth_ff(PyObject *me, PyObject *arg) |
| 1394 | { |
| 1395 | mp *n = 0; grand *r = GRAND_R(me); bbs_priv *bp = BBSPRIV_BP(me); |
| 1396 | if (!PyArg_ParseTuple(arg, "O&:ff", convmp, &n)) return (0); |
| 1397 | r->ops->misc(r, BBS_FF, bp, n); RETURN_ME; |
| 1398 | } |
| 1399 | |
| 1400 | static PyObject *bpmeth_rew(PyObject *me, PyObject *arg) |
| 1401 | { |
| 1402 | mp *n = 0; grand *r = GRAND_R(me); bbs_priv *bp = BBSPRIV_BP(me); |
| 1403 | if (!PyArg_ParseTuple(arg, "O&:rew", convmp, &n)) return (0); |
| 1404 | r->ops->misc(r, BBS_REW, bp, n); RETURN_ME; |
| 1405 | } |
| 1406 | |
| 1407 | static PyObject *bpget_n(PyObject *me, void *hunoz) |
| 1408 | { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->n))); } |
| 1409 | |
| 1410 | static PyObject *bpget_p(PyObject *me, void *hunoz) |
| 1411 | { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->p))); } |
| 1412 | |
| 1413 | static PyObject *bpget_q(PyObject *me, void *hunoz) |
| 1414 | { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->q))); } |
| 1415 | |
| 1416 | static const PyMethodDef bbspriv_pymethods[] = { |
| 1417 | #define METHNAME(name) bpmeth_##name |
| 1418 | METH (ff, "R.ff(N): fast-forward N places") |
| 1419 | METH (rew, "R.rew(N): rewind N places") |
| 1420 | KWSMTH(generate, "generate(NBITS, [event = pgen_nullev], " |
| 1421 | "[rng = rand], [nsteps = 0], [seed = 2]) -> R") |
| 1422 | #undef METHNAME |
| 1423 | { 0 } |
| 1424 | }; |
| 1425 | |
| 1426 | static const PyGetSetDef bbspriv_pygetset[] = { |
| 1427 | #define GETSETNAME(op, name) bp##op##_##name |
| 1428 | GET (n, "R.n -> Blum modulus") |
| 1429 | GET (p, "R.p -> one of the factors of the modulus") |
| 1430 | GET (q, "R.q -> one of the factors of the modulus") |
| 1431 | #undef GETSETNAME |
| 1432 | { 0 } |
| 1433 | }; |
| 1434 | |
| 1435 | static const PyTypeObject bbspriv_pytype_skel = { |
| 1436 | PyVarObject_HEAD_INIT(0, 0) /* Header */ |
| 1437 | "BBSPriv", /* @tp_name@ */ |
| 1438 | sizeof(bbspriv_pyobj), /* @tp_basicsize@ */ |
| 1439 | 0, /* @tp_itemsize@ */ |
| 1440 | |
| 1441 | bbspriv_pydealloc, /* @tp_dealloc@ */ |
| 1442 | 0, /* @tp_print@ */ |
| 1443 | 0, /* @tp_getattr@ */ |
| 1444 | 0, /* @tp_setattr@ */ |
| 1445 | 0, /* @tp_compare@ */ |
| 1446 | 0, /* @tp_repr@ */ |
| 1447 | 0, /* @tp_as_number@ */ |
| 1448 | 0, /* @tp_as_sequence@ */ |
| 1449 | 0, /* @tp_as_mapping@ */ |
| 1450 | 0, /* @tp_hash@ */ |
| 1451 | 0, /* @tp_call@ */ |
| 1452 | 0, /* @tp_str@ */ |
| 1453 | 0, /* @tp_getattro@ */ |
| 1454 | 0, /* @tp_setattro@ */ |
| 1455 | 0, /* @tp_as_buffer@ */ |
| 1456 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 1457 | Py_TPFLAGS_BASETYPE, |
| 1458 | |
| 1459 | /* @tp_doc@ */ |
| 1460 | "BBSPriv(..., [seed = 2]): Blum-Blum-Shub, with private key.\n" |
| 1461 | " Keywords: n, p, q; must provide at least two", |
| 1462 | |
| 1463 | 0, /* @tp_traverse@ */ |
| 1464 | 0, /* @tp_clear@ */ |
| 1465 | 0, /* @tp_richcompare@ */ |
| 1466 | 0, /* @tp_weaklistoffset@ */ |
| 1467 | 0, /* @tp_iter@ */ |
| 1468 | 0, /* @tp_iternext@ */ |
| 1469 | PYMETHODS(bbspriv), /* @tp_methods@ */ |
| 1470 | 0, /* @tp_members@ */ |
| 1471 | PYGETSET(bbspriv), /* @tp_getset@ */ |
| 1472 | 0, /* @tp_base@ */ |
| 1473 | 0, /* @tp_dict@ */ |
| 1474 | 0, /* @tp_descr_get@ */ |
| 1475 | 0, /* @tp_descr_set@ */ |
| 1476 | 0, /* @tp_dictoffset@ */ |
| 1477 | 0, /* @tp_init@ */ |
| 1478 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1479 | bbspriv_pynew, /* @tp_new@ */ |
| 1480 | 0, /* @tp_free@ */ |
| 1481 | 0 /* @tp_is_gc@ */ |
| 1482 | }; |
| 1483 | |
| 1484 | /*----- Global stuff ------------------------------------------------------*/ |
| 1485 | |
| 1486 | static const struct nameval consts[] = { |
| 1487 | CONST(RAND_IBITS), |
| 1488 | { 0 } |
| 1489 | }; |
| 1490 | |
| 1491 | void rand_pyinit(void) |
| 1492 | { |
| 1493 | INITTYPE(grand, root); |
| 1494 | INITTYPE(truerand, grand); |
| 1495 | INITTYPE(fibrand, grand); |
| 1496 | INITTYPE(lcrand, grand); |
| 1497 | INITTYPE(dsarand, grand); |
| 1498 | INITTYPE(bbs, grand); |
| 1499 | INITTYPE(bbspriv, bbs); |
| 1500 | INITTYPE(sslprf, grand); |
| 1501 | INITTYPE(tlsdx, grand); |
| 1502 | INITTYPE(tlsprf, grand); |
| 1503 | INITTYPE(gccrand, type); |
| 1504 | INITTYPE(gcrand, grand); |
| 1505 | INITTYPE(gclatinrand, gcrand); |
| 1506 | rand_noisesrc(RAND_GLOBAL, &noise_source); |
| 1507 | rand_seed(RAND_GLOBAL, 160); |
| 1508 | } |
| 1509 | |
| 1510 | static const char *crand_namefn(const void *p) |
| 1511 | { const gccrand_info *const *cls = p; return (*cls ? (*cls)->name : 0); } |
| 1512 | static PyObject *crand_valfn(const void *p) |
| 1513 | { const gccrand_info *const *cls = p; return (gccrand_pywrap(*cls)); } |
| 1514 | |
| 1515 | void rand_pyinsert(PyObject *mod) |
| 1516 | { |
| 1517 | INSERT("GRand", grand_pytype); |
| 1518 | INSERT("TrueRand", truerand_pytype); |
| 1519 | INSERT("LCRand", lcrand_pytype); |
| 1520 | INSERT("FibRand", fibrand_pytype); |
| 1521 | INSERT("SSLRand", sslprf_pytype); |
| 1522 | INSERT("TLSDataExpansion", tlsdx_pytype); |
| 1523 | INSERT("TLSPRF", tlsprf_pytype); |
| 1524 | INSERT("DSARand", dsarand_pytype); |
| 1525 | INSERT("BlumBlumShub", bbs_pytype); |
| 1526 | INSERT("BBSPriv", bbspriv_pytype); |
| 1527 | INSERT("GCCRand", gccrand_pytype); |
| 1528 | INSERT("GCRand", gcrand_pytype); |
| 1529 | INSERT("GCLatinRand", gclatinrand_pytype); |
| 1530 | rand_pyobj = grand_pywrap(&rand_global, 0); Py_INCREF(rand_pyobj); |
| 1531 | gccrands_dict = make_algtab(gcrandtab, sizeof(gccrand_info *), |
| 1532 | crand_namefn, crand_valfn); |
| 1533 | INSERT("gccrands", gccrands_dict); Py_INCREF(gccrands_dict); |
| 1534 | INSERT("rand", rand_pyobj); |
| 1535 | setconstants(mod, consts); |
| 1536 | } |
| 1537 | |
| 1538 | /*----- That's all, folks -------------------------------------------------*/ |