| 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 | #include "algorithms.h" |
| 31 | |
| 32 | /*----- Main code ---------------------------------------------------------*/ |
| 33 | |
| 34 | PyTypeObject *grand_pytype, *truerand_pytype; |
| 35 | PyTypeObject *lcrand_pytype, *fibrand_pytype; |
| 36 | PyTypeObject *dsarand_pytype, *bbs_pytype, *bbspriv_pytype; |
| 37 | PyTypeObject *sslprf_pytype, *tlsdx_pytype, *tlsprf_pytype; |
| 38 | PyObject *rand_pyobj; |
| 39 | |
| 40 | static PyObject *gccrands_dict; |
| 41 | |
| 42 | static PyObject *grand_dopywrap(PyTypeObject *ty, grand *r, unsigned f) |
| 43 | { |
| 44 | grand_pyobj *g; |
| 45 | |
| 46 | g = (grand_pyobj *)ty->tp_alloc(ty, 0); |
| 47 | g->r = r; |
| 48 | g->f = f; |
| 49 | return ((PyObject *)g); |
| 50 | } |
| 51 | |
| 52 | PyObject *grand_pywrap(grand *r, unsigned f) |
| 53 | { |
| 54 | PyTypeObject *ty = grand_pytype; |
| 55 | PyObject *ob; |
| 56 | |
| 57 | if (strcmp(r->ops->name, "rand") == 0) ty = truerand_pytype; |
| 58 | else if (strcmp(r->ops->name, "lcrand") == 0) ty = lcrand_pytype; |
| 59 | else if (strcmp(r->ops->name, "fibrand") == 0) ty = fibrand_pytype; |
| 60 | else if (strcmp(r->ops->name, "dsarand") == 0) ty = dsarand_pytype; |
| 61 | else if (strcmp(r->ops->name, "bbs") == 0) ty = bbs_pytype; |
| 62 | else if (strcmp(r->ops->name, "sslprf") == 0) ty = sslprf_pytype; |
| 63 | else if (strcmp(r->ops->name, "tlsdx") == 0) ty = tlsdx_pytype; |
| 64 | else if (strcmp(r->ops->name, "tlsprf") == 0) ty = tlsprf_pytype; |
| 65 | else if ((ob = PyDict_GetItemString(gccrands_dict, r->ops->name)) != 0) |
| 66 | ty = (PyTypeObject *)ob; |
| 67 | return (grand_dopywrap(ty, r, f)); |
| 68 | } |
| 69 | |
| 70 | CONVFUNC(grand, grand *, GRAND_R) |
| 71 | |
| 72 | static int grand_check(PyObject *me) |
| 73 | { |
| 74 | if (!GRAND_R(me)) VALERR("random generator object is no longer valid"); |
| 75 | return (0); |
| 76 | end: |
| 77 | return (-1); |
| 78 | } |
| 79 | |
| 80 | static PyObject *grmeth_byte(PyObject *me, PyObject *arg) |
| 81 | { |
| 82 | if (!PyArg_ParseTuple(arg, ":byte")) return (0); |
| 83 | if (grand_check(me)) return (0); |
| 84 | return (PyInt_FromLong(grand_byte(GRAND_R(me)))); |
| 85 | } |
| 86 | |
| 87 | static PyObject *grmeth_word(PyObject *me, PyObject *arg) |
| 88 | { |
| 89 | if (!PyArg_ParseTuple(arg, ":word")) return (0); |
| 90 | if (grand_check(me)) return (0); |
| 91 | return (getulong(grand_word(GRAND_R(me)))); |
| 92 | } |
| 93 | |
| 94 | static PyObject *grmeth_range(PyObject *me, PyObject *arg) |
| 95 | { |
| 96 | PyObject *m; |
| 97 | mp *x = 0; |
| 98 | mp *y = 0; |
| 99 | |
| 100 | if (!PyArg_ParseTuple(arg, "O:range", &m)) return (0); |
| 101 | if (grand_check(me)) return (0); |
| 102 | if (PyInt_Check(m)) { |
| 103 | long mm = PyInt_AS_LONG(m); |
| 104 | if (mm <= 0) |
| 105 | goto notpos; |
| 106 | if (mm <= 0xffffffff) |
| 107 | return (PyInt_FromLong(grand_range(GRAND_R(me), mm))); |
| 108 | } |
| 109 | if ((x = getmp(m)) == 0) |
| 110 | goto end; |
| 111 | if (!MP_POSP(x)) |
| 112 | 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 | char *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), PyString_AS_STRING(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 | char *p; |
| 188 | Py_ssize_t n; |
| 189 | grand *r = GRAND_R(me); |
| 190 | if (!PyArg_ParseTuple(arg, "s#:seedblock", &p, &n) || |
| 191 | grand_check(me) || checkop(r, GRAND_SEEDBLOCK, "seedblock")) |
| 192 | goto end; |
| 193 | r->ops->misc(r, GRAND_SEEDBLOCK, p, (size_t)n); |
| 194 | RETURN_ME; |
| 195 | end: |
| 196 | return (0); |
| 197 | } |
| 198 | |
| 199 | static PyObject *grmeth_seedmp(PyObject *me, PyObject *arg) |
| 200 | { |
| 201 | PyObject *x; |
| 202 | mp *xx; |
| 203 | grand *r = GRAND_R(me); |
| 204 | if (!PyArg_ParseTuple(arg, "O:seedmp", &x) || |
| 205 | grand_check(me) || checkop(r, GRAND_SEEDMP, "seedmp") || |
| 206 | (xx = getmp(x)) == 0) |
| 207 | goto end; |
| 208 | r->ops->misc(r, GRAND_SEEDMP, xx); |
| 209 | MP_DROP(xx); |
| 210 | RETURN_ME; |
| 211 | end: |
| 212 | return (0); |
| 213 | } |
| 214 | |
| 215 | static PyObject *grmeth_seedrand(PyObject *me, PyObject *arg, PyObject *kw) |
| 216 | { |
| 217 | char *kwlist[] = { "rng", 0 }; |
| 218 | grand *r = GRAND_R(me); |
| 219 | grand *rr = &rand_global; |
| 220 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:seedrand", kwlist, |
| 221 | convgrand, &rr) || |
| 222 | grand_check(me) || checkop(r, GRAND_SEEDRAND, "seedrand")) |
| 223 | goto end; |
| 224 | r->ops->misc(r, GRAND_SEEDRAND, rr); |
| 225 | RETURN_ME; |
| 226 | end: |
| 227 | return (0); |
| 228 | } |
| 229 | |
| 230 | static PyObject *grmeth_mask(PyObject *me, PyObject *arg) |
| 231 | { |
| 232 | grand *r = GRAND_R(me); |
| 233 | char *p, *q; |
| 234 | Py_ssize_t sz; |
| 235 | PyObject *rc; |
| 236 | |
| 237 | if (!PyArg_ParseTuple(arg, "s#:mask", &p, &sz)) return (0); |
| 238 | if (grand_check(me)) return (0); |
| 239 | rc = bytestring_pywrap(0, sz); |
| 240 | q = PyString_AS_STRING(rc); |
| 241 | GR_FILL(r, q, sz); |
| 242 | while (sz--) *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 : PyString_FromString(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 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 PyMethodDef grand_pymethods[] = { |
| 268 | #define METHNAME(name) grmeth_##name |
| 269 | METH (byte, "R.byte() -> BYTE") |
| 270 | METH (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 PyTypeObject grand_pytype_skel = { |
| 285 | PyObject_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 | grand_pymethods, /* @tp_methods@ */ |
| 318 | 0, /* @tp_members@ */ |
| 319 | grand_pygetset, /* @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 | char *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 PyTypeObject lcrand_pytype_skel = { |
| 342 | PyObject_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 | char *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 PyTypeObject fibrand_pytype_skel = { |
| 399 | PyObject_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, PyObject *arg) |
| 449 | { |
| 450 | grand *r = GRAND_R(me); |
| 451 | if (!PyArg_ParseTuple(arg, ":gate")) return (0); |
| 452 | r->ops->misc(r, RAND_GATE); |
| 453 | RETURN_ME; |
| 454 | } |
| 455 | |
| 456 | static PyObject *trmeth_stretch(PyObject *me, PyObject *arg) |
| 457 | { |
| 458 | grand *r = GRAND_R(me); |
| 459 | if (!PyArg_ParseTuple(arg, ":stretch")) return (0); |
| 460 | r->ops->misc(r, RAND_STRETCH); |
| 461 | RETURN_ME; |
| 462 | } |
| 463 | |
| 464 | static PyObject *trmeth_add(PyObject *me, PyObject *arg) |
| 465 | { |
| 466 | grand *r = GRAND_R(me); |
| 467 | char *p; Py_ssize_t n; unsigned goodbits; |
| 468 | if (!PyArg_ParseTuple(arg, "s#O&:add", &p, &n, convuint, &goodbits)) |
| 469 | return (0); |
| 470 | r->ops->misc(r, RAND_ADD, p, (size_t)n, goodbits); |
| 471 | RETURN_ME; |
| 472 | } |
| 473 | |
| 474 | static PyObject *trmeth_key(PyObject *me, PyObject *arg) |
| 475 | { |
| 476 | grand *r = GRAND_R(me); |
| 477 | char *p; Py_ssize_t n; |
| 478 | if (!PyArg_ParseTuple(arg, "s#:key", &p, &n)) return (0); |
| 479 | r->ops->misc(r, RAND_KEY, p, (size_t)n); |
| 480 | RETURN_ME; |
| 481 | } |
| 482 | |
| 483 | static PyObject *trmeth_seed(PyObject *me, PyObject *arg) |
| 484 | { |
| 485 | grand *r = GRAND_R(me); |
| 486 | unsigned u; |
| 487 | if (!PyArg_ParseTuple(arg, "O&:seed", convuint, &u)) return (0); |
| 488 | if (u > RAND_IBITS) VALERR("pointlessly large"); |
| 489 | r->ops->misc(r, RAND_SEED, u); |
| 490 | RETURN_ME; |
| 491 | end: |
| 492 | return (0); |
| 493 | } |
| 494 | |
| 495 | static PyObject *trmeth_timer(PyObject *me, PyObject *arg) |
| 496 | { |
| 497 | grand *r = GRAND_R(me); |
| 498 | if (!PyArg_ParseTuple(arg, ":timer")) return (0); |
| 499 | r->ops->misc(r, RAND_TIMER); |
| 500 | RETURN_ME; |
| 501 | } |
| 502 | |
| 503 | static PyObject *truerand_pynew(PyTypeObject *ty, |
| 504 | PyObject *arg, PyObject *kw) |
| 505 | { |
| 506 | char *kwlist[] = { 0 }; |
| 507 | grand *r; |
| 508 | PyObject *rc = 0; |
| 509 | if (PyArg_ParseTupleAndKeywords(arg, kw, ":new", kwlist)) goto end; |
| 510 | r = rand_create(); |
| 511 | r->ops->misc(r, RAND_NOISESRC, &noise_source); |
| 512 | r->ops->misc(r, RAND_SEED, 160); |
| 513 | rc = grand_dopywrap(ty, r, f_freeme); |
| 514 | end: |
| 515 | return (rc); |
| 516 | } |
| 517 | |
| 518 | static PyMethodDef truerand_pymethods[] = { |
| 519 | #define METHNAME(name) trmeth_##name |
| 520 | METH (gate, "R.gate()") |
| 521 | METH (stretch, "R.stretch()") |
| 522 | METH (key, "R.key(BYTES)") |
| 523 | METH (seed, "R.seed(NBITS)") |
| 524 | METH (add, "R.add(BYTES, GOODBITS") |
| 525 | METH (timer, "R.timer()") |
| 526 | #undef METHNAME |
| 527 | { 0 } |
| 528 | }; |
| 529 | |
| 530 | static PyObject *trget_goodbits(PyObject *me, void *hunoz) |
| 531 | { |
| 532 | grand *r = GRAND_R(me); |
| 533 | return (PyInt_FromLong(r->ops->misc(r, RAND_GOODBITS))); |
| 534 | } |
| 535 | |
| 536 | static PyGetSetDef truerand_pygetset[] = { |
| 537 | #define GETSETNAME(op, name) tr##op##_##name |
| 538 | GET (goodbits, "R.goodbits -> good bits of entropy remaining") |
| 539 | #undef GETSETNAME |
| 540 | { 0 } |
| 541 | }; |
| 542 | |
| 543 | static PyTypeObject truerand_pytype_skel = { |
| 544 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 545 | "TrueRand", /* @tp_name@ */ |
| 546 | sizeof(grand_pyobj), /* @tp_basicsize@ */ |
| 547 | 0, /* @tp_itemsize@ */ |
| 548 | |
| 549 | grand_pydealloc, /* @tp_dealloc@ */ |
| 550 | 0, /* @tp_print@ */ |
| 551 | 0, /* @tp_getattr@ */ |
| 552 | 0, /* @tp_setattr@ */ |
| 553 | 0, /* @tp_compare@ */ |
| 554 | 0, /* @tp_repr@ */ |
| 555 | 0, /* @tp_as_number@ */ |
| 556 | 0, /* @tp_as_sequence@ */ |
| 557 | 0, /* @tp_as_mapping@ */ |
| 558 | 0, /* @tp_hash@ */ |
| 559 | 0, /* @tp_call@ */ |
| 560 | 0, /* @tp_str@ */ |
| 561 | 0, /* @tp_getattro@ */ |
| 562 | 0, /* @tp_setattro@ */ |
| 563 | 0, /* @tp_as_buffer@ */ |
| 564 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 565 | Py_TPFLAGS_BASETYPE, |
| 566 | |
| 567 | /* @tp_doc@ */ |
| 568 | "TrueRand(): true random number source.", |
| 569 | |
| 570 | 0, /* @tp_traverse@ */ |
| 571 | 0, /* @tp_clear@ */ |
| 572 | 0, /* @tp_richcompare@ */ |
| 573 | 0, /* @tp_weaklistoffset@ */ |
| 574 | 0, /* @tp_iter@ */ |
| 575 | 0, /* @tp_iternext@ */ |
| 576 | truerand_pymethods, /* @tp_methods@ */ |
| 577 | 0, /* @tp_members@ */ |
| 578 | truerand_pygetset, /* @tp_getset@ */ |
| 579 | 0, /* @tp_base@ */ |
| 580 | 0, /* @tp_dict@ */ |
| 581 | 0, /* @tp_descr_get@ */ |
| 582 | 0, /* @tp_descr_set@ */ |
| 583 | 0, /* @tp_dictoffset@ */ |
| 584 | 0, /* @tp_init@ */ |
| 585 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 586 | truerand_pynew, /* @tp_new@ */ |
| 587 | 0, /* @tp_free@ */ |
| 588 | 0 /* @tp_is_gc@ */ |
| 589 | }; |
| 590 | |
| 591 | /*----- Generators from symmetric encryption algorithms -------------------*/ |
| 592 | |
| 593 | static PyTypeObject *gccrand_pytype, *gcrand_pytype, *gclatinrand_pytype; |
| 594 | |
| 595 | typedef grand *gcrand_func(const void *, size_t sz); |
| 596 | typedef grand *gcirand_func(const void *, size_t sz, uint32); |
| 597 | typedef grand *gcnrand_func(const void *, size_t sz, const void *); |
| 598 | typedef grand *gcshakerand_func(const void *, size_t, |
| 599 | const void *, size_t, |
| 600 | const void *, size_t); |
| 601 | typedef grand *gcshafuncrand_func(const void *, size_t, |
| 602 | const void *, size_t); |
| 603 | typedef grand *gckmacrand_func(const void *, size_t, const void *, size_t); |
| 604 | typedef struct gccrand_info { |
| 605 | const char *name; |
| 606 | const octet *keysz; |
| 607 | unsigned f; |
| 608 | size_t noncesz; |
| 609 | gcrand_func *func; |
| 610 | } gccrand_info; |
| 611 | |
| 612 | #define RNGF_MASK 255u |
| 613 | |
| 614 | enum { |
| 615 | RNG_PLAIN = 0, |
| 616 | RNG_SEAL, |
| 617 | RNG_LATIN, |
| 618 | RNG_SHAKE, |
| 619 | RNG_KMAC |
| 620 | }; |
| 621 | |
| 622 | typedef struct gccrand_pyobj { |
| 623 | PyHeapTypeObject ty; |
| 624 | const gccrand_info *info; |
| 625 | } gccrand_pyobj; |
| 626 | #define GCCRAND_INFO(o) (((gccrand_pyobj *)(o))->info) |
| 627 | |
| 628 | #define GCCRAND_DEF(name, ksz, func, f, nsz) \ |
| 629 | static const gccrand_info func##_info = \ |
| 630 | { name, ksz, f, nsz, (gcrand_func *)func }; |
| 631 | RNGS(GCCRAND_DEF) |
| 632 | |
| 633 | static const gccrand_info *const gcrandtab[] = { |
| 634 | #define GCCRAND_ENTRY(name, ksz, func, f, nsz) &func##_info, |
| 635 | RNGS(GCCRAND_ENTRY) |
| 636 | 0 |
| 637 | }; |
| 638 | |
| 639 | static PyObject *gcrand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 640 | { |
| 641 | const gccrand_info *info = GCCRAND_INFO(ty); |
| 642 | static char *kwlist[] = { "key", 0 }; |
| 643 | char *k; |
| 644 | Py_ssize_t n; |
| 645 | |
| 646 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &n)) |
| 647 | goto end; |
| 648 | if (keysz(n, info->keysz) != n) VALERR("bad key length"); |
| 649 | return (grand_dopywrap(ty, info->func(k, n), f_freeme)); |
| 650 | end: |
| 651 | return (0); |
| 652 | } |
| 653 | |
| 654 | static PyObject *gcirand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 655 | { |
| 656 | const gccrand_info *info = GCCRAND_INFO(ty); |
| 657 | uint32 i = 0; |
| 658 | static char *kwlist[] = { "key", "i", 0 }; |
| 659 | char *k; |
| 660 | Py_ssize_t n; |
| 661 | |
| 662 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#O&:new", kwlist, |
| 663 | &k, &n, convu32, &i)) |
| 664 | goto end; |
| 665 | if (keysz(n, info->keysz) != n) VALERR("bad key length"); |
| 666 | return (grand_dopywrap(ty, |
| 667 | ((gcirand_func *)info->func)(k, n, i), |
| 668 | f_freeme)); |
| 669 | end: |
| 670 | return (0); |
| 671 | } |
| 672 | |
| 673 | static PyObject *gcnrand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 674 | { |
| 675 | const gccrand_info *info = GCCRAND_INFO(ty); |
| 676 | static char *kwlist[] = { "key", "nonce", 0 }; |
| 677 | char *k, *n; |
| 678 | Py_ssize_t ksz, nsz; |
| 679 | |
| 680 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#:new", kwlist, |
| 681 | &k, &ksz, &n, &nsz)) |
| 682 | goto end; |
| 683 | if (keysz(ksz, info->keysz) != ksz) VALERR("bad key length"); |
| 684 | if (nsz != info->noncesz) VALERR("bad nonce length"); |
| 685 | return (grand_dopywrap(ty, |
| 686 | ((gcnrand_func *)info->func)(k, ksz, n), |
| 687 | f_freeme)); |
| 688 | end: |
| 689 | return (0); |
| 690 | } |
| 691 | |
| 692 | static PyObject *gcshakyrand_pynew(PyTypeObject *ty, |
| 693 | PyObject *arg, PyObject *kw) |
| 694 | { |
| 695 | const gccrand_info *info = GCCRAND_INFO(ty); |
| 696 | static char *kwlist_shake[] = { "key", "func", "perso", 0 }; |
| 697 | static char *kwlist_func[] = { "key", "perso", 0 }; |
| 698 | char *k, *f = 0, *p = 0; |
| 699 | Py_ssize_t ksz, fsz = 0, psz = 0; |
| 700 | |
| 701 | if ((info->f&RNGF_MASK) == RNG_SHAKE |
| 702 | ? !PyArg_ParseTupleAndKeywords(arg, kw, "s#|s#s#:new", kwlist_shake, |
| 703 | &k, &ksz, &f, &fsz, &p, &psz) |
| 704 | : !PyArg_ParseTupleAndKeywords(arg, kw, "s#|s#:new", kwlist_func, |
| 705 | &k, &ksz, &p, &psz)) |
| 706 | goto end; |
| 707 | if (keysz(ksz, info->keysz) != ksz) VALERR("bad key length"); |
| 708 | return (grand_dopywrap(ty, |
| 709 | (info->f&RNGF_MASK) == RNG_SHAKE |
| 710 | ? ((gcshakerand_func *)info->func)(f, fsz, |
| 711 | p, psz, |
| 712 | k, ksz) |
| 713 | : ((gcshafuncrand_func *)info->func)(p, psz, |
| 714 | k, ksz), |
| 715 | f_freeme)); |
| 716 | end: |
| 717 | return (0); |
| 718 | } |
| 719 | |
| 720 | static PyObject *gccrand_pywrap(const gccrand_info *info) |
| 721 | { |
| 722 | gccrand_pyobj *g = newtype(gccrand_pytype, 0, info->name); |
| 723 | g->info = info; |
| 724 | g->ty.ht_type.tp_basicsize = sizeof(grand_pyobj); |
| 725 | switch (info->f&RNGF_MASK) { |
| 726 | case RNG_LATIN: g->ty.ht_type.tp_base = gclatinrand_pytype; break; |
| 727 | default: g->ty.ht_type.tp_base = gcrand_pytype; break; |
| 728 | } |
| 729 | Py_INCREF(g->ty.ht_type.tp_base); |
| 730 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
| 731 | Py_TPFLAGS_BASETYPE | |
| 732 | Py_TPFLAGS_HEAPTYPE); |
| 733 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; |
| 734 | g->ty.ht_type.tp_free = 0; |
| 735 | switch (info->f&RNGF_MASK) { |
| 736 | case RNG_LATIN: g->ty.ht_type.tp_new = gcnrand_pynew; break; |
| 737 | case RNG_SEAL: g->ty.ht_type.tp_new = gcirand_pynew; break; |
| 738 | case RNG_SHAKE: case RNG_KMAC: |
| 739 | g->ty.ht_type.tp_new = gcshakyrand_pynew; break; |
| 740 | default: g->ty.ht_type.tp_new = gcrand_pynew; break; |
| 741 | } |
| 742 | typeready(&g->ty.ht_type); |
| 743 | return ((PyObject *)g); |
| 744 | } |
| 745 | |
| 746 | static PyObject *gccrget_name(PyObject *me, void *hunoz) |
| 747 | { return (PyString_FromString(GCCRAND_INFO(me)->name)); } |
| 748 | static PyObject *gccrget_keysz(PyObject *me, void *hunoz) |
| 749 | { return (keysz_pywrap(GCCRAND_INFO(me)->keysz)); } |
| 750 | |
| 751 | static PyObject *gclrmeth_tell(PyObject *me, PyObject *arg) |
| 752 | { |
| 753 | grand *r = GRAND_R(me); |
| 754 | PyObject *rc = 0; |
| 755 | kludge64 off; |
| 756 | |
| 757 | if (!PyArg_ParseTuple(arg, ":tell")) return (0); |
| 758 | r->ops->misc(r, SALSA20_TELLU64, &off); |
| 759 | rc = getk64(off); |
| 760 | return (rc); |
| 761 | } |
| 762 | |
| 763 | static PyObject *gclrmeth_seek(PyObject *me, PyObject *arg) |
| 764 | { |
| 765 | grand *r = GRAND_R(me); |
| 766 | kludge64 off; |
| 767 | |
| 768 | if (!PyArg_ParseTuple(arg, "O&:seek", convk64, &off)) return (0); |
| 769 | r->ops->misc(r, SALSA20_SEEKU64, off); |
| 770 | RETURN_ME; |
| 771 | } |
| 772 | |
| 773 | static PyGetSetDef gccrand_pygetset[] = { |
| 774 | #define GETSETNAME(op, name) gccr##op##_##name |
| 775 | GET (keysz, "CR.keysz -> acceptable key sizes") |
| 776 | GET (name, "CR.name -> name of this kind of generator") |
| 777 | #undef GETSETNAME |
| 778 | { 0 } |
| 779 | }; |
| 780 | |
| 781 | static PyMethodDef gclatinrand_pymethods[] = { |
| 782 | #define METHNAME(name) gclrmeth_##name |
| 783 | METH (tell, "R.tell() -> OFF") |
| 784 | METH (seek, "R.seek(OFF)") |
| 785 | #undef METHNAME |
| 786 | { 0 } |
| 787 | }; |
| 788 | |
| 789 | static PyTypeObject gccrand_pytype_skel = { |
| 790 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 791 | "GCCRand", /* @tp_name@ */ |
| 792 | sizeof(gccrand_pyobj), /* @tp_basicsize@ */ |
| 793 | 0, /* @tp_itemsize@ */ |
| 794 | |
| 795 | 0, /* @tp_dealloc@ */ |
| 796 | 0, /* @tp_print@ */ |
| 797 | 0, /* @tp_getattr@ */ |
| 798 | 0, /* @tp_setattr@ */ |
| 799 | 0, /* @tp_compare@ */ |
| 800 | 0, /* @tp_repr@ */ |
| 801 | 0, /* @tp_as_number@ */ |
| 802 | 0, /* @tp_as_sequence@ */ |
| 803 | 0, /* @tp_as_mapping@ */ |
| 804 | 0, /* @tp_hash@ */ |
| 805 | 0, /* @tp_call@ */ |
| 806 | 0, /* @tp_str@ */ |
| 807 | 0, /* @tp_getattro@ */ |
| 808 | 0, /* @tp_setattro@ */ |
| 809 | 0, /* @tp_as_buffer@ */ |
| 810 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 811 | Py_TPFLAGS_BASETYPE, |
| 812 | |
| 813 | /* @tp_doc@ */ |
| 814 | "Metaclass for symmetric crypto-based generators.", |
| 815 | |
| 816 | 0, /* @tp_traverse@ */ |
| 817 | 0, /* @tp_clear@ */ |
| 818 | 0, /* @tp_richcompare@ */ |
| 819 | 0, /* @tp_weaklistoffset@ */ |
| 820 | 0, /* @tp_iter@ */ |
| 821 | 0, /* @tp_iternext@ */ |
| 822 | 0, /* @tp_methods@ */ |
| 823 | 0, /* @tp_members@ */ |
| 824 | gccrand_pygetset, /* @tp_getset@ */ |
| 825 | 0, /* @tp_base@ */ |
| 826 | 0, /* @tp_dict@ */ |
| 827 | 0, /* @tp_descr_get@ */ |
| 828 | 0, /* @tp_descr_set@ */ |
| 829 | 0, /* @tp_dictoffset@ */ |
| 830 | 0, /* @tp_init@ */ |
| 831 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 832 | abstract_pynew, /* @tp_new@ */ |
| 833 | 0, /* @tp_free@ */ |
| 834 | 0 /* @tp_is_gc@ */ |
| 835 | }; |
| 836 | |
| 837 | static PyTypeObject gcrand_pytype_skel = { |
| 838 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 839 | "GCRand", /* @tp_name@ */ |
| 840 | sizeof(grand_pyobj), /* @tp_basicsize@ */ |
| 841 | 0, /* @tp_itemsize@ */ |
| 842 | |
| 843 | grand_pydealloc, /* @tp_dealloc@ */ |
| 844 | 0, /* @tp_print@ */ |
| 845 | 0, /* @tp_getattr@ */ |
| 846 | 0, /* @tp_setattr@ */ |
| 847 | 0, /* @tp_compare@ */ |
| 848 | 0, /* @tp_repr@ */ |
| 849 | 0, /* @tp_as_number@ */ |
| 850 | 0, /* @tp_as_sequence@ */ |
| 851 | 0, /* @tp_as_mapping@ */ |
| 852 | 0, /* @tp_hash@ */ |
| 853 | 0, /* @tp_call@ */ |
| 854 | 0, /* @tp_str@ */ |
| 855 | 0, /* @tp_getattro@ */ |
| 856 | 0, /* @tp_setattro@ */ |
| 857 | 0, /* @tp_as_buffer@ */ |
| 858 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 859 | Py_TPFLAGS_BASETYPE, |
| 860 | |
| 861 | /* @tp_doc@ */ |
| 862 | "Abstract base class for symmetric crypto-based generators.", |
| 863 | |
| 864 | 0, /* @tp_traverse@ */ |
| 865 | 0, /* @tp_clear@ */ |
| 866 | 0, /* @tp_richcompare@ */ |
| 867 | 0, /* @tp_weaklistoffset@ */ |
| 868 | 0, /* @tp_iter@ */ |
| 869 | 0, /* @tp_iternext@ */ |
| 870 | 0, /* @tp_methods@ */ |
| 871 | 0, /* @tp_members@ */ |
| 872 | 0, /* @tp_getset@ */ |
| 873 | 0, /* @tp_base@ */ |
| 874 | 0, /* @tp_dict@ */ |
| 875 | 0, /* @tp_descr_get@ */ |
| 876 | 0, /* @tp_descr_set@ */ |
| 877 | 0, /* @tp_dictoffset@ */ |
| 878 | 0, /* @tp_init@ */ |
| 879 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 880 | abstract_pynew, /* @tp_new@ */ |
| 881 | 0, /* @tp_free@ */ |
| 882 | 0 /* @tp_is_gc@ */ |
| 883 | }; |
| 884 | |
| 885 | static PyTypeObject gclatinrand_pytype_skel = { |
| 886 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 887 | "GCLatinRand", /* @tp_name@ */ |
| 888 | sizeof(grand_pyobj), /* @tp_basicsize@ */ |
| 889 | 0, /* @tp_itemsize@ */ |
| 890 | |
| 891 | grand_pydealloc, /* @tp_dealloc@ */ |
| 892 | 0, /* @tp_print@ */ |
| 893 | 0, /* @tp_getattr@ */ |
| 894 | 0, /* @tp_setattr@ */ |
| 895 | 0, /* @tp_compare@ */ |
| 896 | 0, /* @tp_repr@ */ |
| 897 | 0, /* @tp_as_number@ */ |
| 898 | 0, /* @tp_as_sequence@ */ |
| 899 | 0, /* @tp_as_mapping@ */ |
| 900 | 0, /* @tp_hash@ */ |
| 901 | 0, /* @tp_call@ */ |
| 902 | 0, /* @tp_str@ */ |
| 903 | 0, /* @tp_getattro@ */ |
| 904 | 0, /* @tp_setattro@ */ |
| 905 | 0, /* @tp_as_buffer@ */ |
| 906 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 907 | Py_TPFLAGS_BASETYPE, |
| 908 | |
| 909 | /* @tp_doc@ */ |
| 910 | "Abstract base class for symmetric crypto-based generators.", |
| 911 | |
| 912 | 0, /* @tp_traverse@ */ |
| 913 | 0, /* @tp_clear@ */ |
| 914 | 0, /* @tp_richcompare@ */ |
| 915 | 0, /* @tp_weaklistoffset@ */ |
| 916 | 0, /* @tp_iter@ */ |
| 917 | 0, /* @tp_iternext@ */ |
| 918 | gclatinrand_pymethods, /* @tp_methods@ */ |
| 919 | 0, /* @tp_members@ */ |
| 920 | 0, /* @tp_getset@ */ |
| 921 | 0, /* @tp_base@ */ |
| 922 | 0, /* @tp_dict@ */ |
| 923 | 0, /* @tp_descr_get@ */ |
| 924 | 0, /* @tp_descr_set@ */ |
| 925 | 0, /* @tp_dictoffset@ */ |
| 926 | 0, /* @tp_init@ */ |
| 927 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 928 | abstract_pynew, /* @tp_new@ */ |
| 929 | 0, /* @tp_free@ */ |
| 930 | 0 /* @tp_is_gc@ */ |
| 931 | }; |
| 932 | |
| 933 | /*----- SSL and TLS generators --------------------------------------------*/ |
| 934 | |
| 935 | static PyObject *sslprf_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 936 | { |
| 937 | char *k, *s; |
| 938 | int ksz, ssz; |
| 939 | const gchash *hco = &md5, *hci = &sha; |
| 940 | PyObject *rc = 0; |
| 941 | char *kwlist[] = { "key", "seed", "ohash", "ihash", 0 }; |
| 942 | |
| 943 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#|O&O&:new", kwlist, |
| 944 | &k, &ksz, &s, &ssz, |
| 945 | convgchash, &hco, convgchash, &hci)) |
| 946 | goto end; |
| 947 | rc = grand_dopywrap(ty, sslprf_rand(hco, hci, k, ksz, s, ssz), f_freeme); |
| 948 | end: |
| 949 | return (rc); |
| 950 | } |
| 951 | |
| 952 | static PyObject *tlsdx_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 953 | { |
| 954 | char *k, *s; |
| 955 | int ksz, ssz; |
| 956 | const gcmac *mc = &sha_hmac; |
| 957 | PyObject *rc = 0; |
| 958 | char *kwlist[] = { "key", "seed", "mac", 0 }; |
| 959 | |
| 960 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#|O&:new", kwlist, |
| 961 | &k, &ksz, &s, &ssz, |
| 962 | convgcmac, &mc)) |
| 963 | goto end; |
| 964 | rc = grand_dopywrap(ty, tlsdx_rand(mc, k, ksz, s, ssz), f_freeme); |
| 965 | end: |
| 966 | return (rc); |
| 967 | } |
| 968 | |
| 969 | static PyObject *tlsprf_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 970 | { |
| 971 | char *k, *s; |
| 972 | int ksz, ssz; |
| 973 | const gcmac *mcl = &md5_hmac, *mcr = &sha_hmac; |
| 974 | PyObject *rc = 0; |
| 975 | char *kwlist[] = { "key", "seed", "lmac", "rmac", 0 }; |
| 976 | |
| 977 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#|O&O&:new", kwlist, |
| 978 | &k, &ksz, &s, &ssz, |
| 979 | convgcmac, &mcl, convgcmac, &mcr)) |
| 980 | goto end; |
| 981 | rc = grand_dopywrap(ty, tlsprf_rand(mcl, mcr, k, ksz, s, ssz), f_freeme); |
| 982 | end: |
| 983 | return (rc); |
| 984 | } |
| 985 | |
| 986 | static PyTypeObject sslprf_pytype_skel = { |
| 987 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 988 | "SSLRand", /* @tp_name@ */ |
| 989 | sizeof(grand_pyobj), /* @tp_basicsize@ */ |
| 990 | 0, /* @tp_itemsize@ */ |
| 991 | |
| 992 | grand_pydealloc, /* @tp_dealloc@ */ |
| 993 | 0, /* @tp_print@ */ |
| 994 | 0, /* @tp_getattr@ */ |
| 995 | 0, /* @tp_setattr@ */ |
| 996 | 0, /* @tp_compare@ */ |
| 997 | 0, /* @tp_repr@ */ |
| 998 | 0, /* @tp_as_number@ */ |
| 999 | 0, /* @tp_as_sequence@ */ |
| 1000 | 0, /* @tp_as_mapping@ */ |
| 1001 | 0, /* @tp_hash@ */ |
| 1002 | 0, /* @tp_call@ */ |
| 1003 | 0, /* @tp_str@ */ |
| 1004 | 0, /* @tp_getattro@ */ |
| 1005 | 0, /* @tp_setattro@ */ |
| 1006 | 0, /* @tp_as_buffer@ */ |
| 1007 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 1008 | Py_TPFLAGS_BASETYPE, |
| 1009 | |
| 1010 | /* @tp_doc@ */ |
| 1011 | "SSLRand(KEY, SEED, [ohash = md5], [ihash = sha]):\n\ |
| 1012 | RNG for SSL master secret.", |
| 1013 | |
| 1014 | 0, /* @tp_traverse@ */ |
| 1015 | 0, /* @tp_clear@ */ |
| 1016 | 0, /* @tp_richcompare@ */ |
| 1017 | 0, /* @tp_weaklistoffset@ */ |
| 1018 | 0, /* @tp_iter@ */ |
| 1019 | 0, /* @tp_iternext@ */ |
| 1020 | 0, /* @tp_methods@ */ |
| 1021 | 0, /* @tp_members@ */ |
| 1022 | 0, /* @tp_getset@ */ |
| 1023 | 0, /* @tp_base@ */ |
| 1024 | 0, /* @tp_dict@ */ |
| 1025 | 0, /* @tp_descr_get@ */ |
| 1026 | 0, /* @tp_descr_set@ */ |
| 1027 | 0, /* @tp_dictoffset@ */ |
| 1028 | 0, /* @tp_init@ */ |
| 1029 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1030 | sslprf_pynew, /* @tp_new@ */ |
| 1031 | 0, /* @tp_free@ */ |
| 1032 | 0 /* @tp_is_gc@ */ |
| 1033 | }; |
| 1034 | |
| 1035 | static PyTypeObject tlsdx_pytype_skel = { |
| 1036 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 1037 | "TLSDataExpansion", /* @tp_name@ */ |
| 1038 | sizeof(grand_pyobj), /* @tp_basicsize@ */ |
| 1039 | 0, /* @tp_itemsize@ */ |
| 1040 | |
| 1041 | grand_pydealloc, /* @tp_dealloc@ */ |
| 1042 | 0, /* @tp_print@ */ |
| 1043 | 0, /* @tp_getattr@ */ |
| 1044 | 0, /* @tp_setattr@ */ |
| 1045 | 0, /* @tp_compare@ */ |
| 1046 | 0, /* @tp_repr@ */ |
| 1047 | 0, /* @tp_as_number@ */ |
| 1048 | 0, /* @tp_as_sequence@ */ |
| 1049 | 0, /* @tp_as_mapping@ */ |
| 1050 | 0, /* @tp_hash@ */ |
| 1051 | 0, /* @tp_call@ */ |
| 1052 | 0, /* @tp_str@ */ |
| 1053 | 0, /* @tp_getattro@ */ |
| 1054 | 0, /* @tp_setattro@ */ |
| 1055 | 0, /* @tp_as_buffer@ */ |
| 1056 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 1057 | Py_TPFLAGS_BASETYPE, |
| 1058 | |
| 1059 | /* @tp_doc@ */ |
| 1060 | "TLSDataExpansion(KEY, SEED, [mac = sha_hmac]):\n\ |
| 1061 | TLS data expansion function.", |
| 1062 | |
| 1063 | 0, /* @tp_traverse@ */ |
| 1064 | 0, /* @tp_clear@ */ |
| 1065 | 0, /* @tp_richcompare@ */ |
| 1066 | 0, /* @tp_weaklistoffset@ */ |
| 1067 | 0, /* @tp_iter@ */ |
| 1068 | 0, /* @tp_iternext@ */ |
| 1069 | 0, /* @tp_methods@ */ |
| 1070 | 0, /* @tp_members@ */ |
| 1071 | 0, /* @tp_getset@ */ |
| 1072 | 0, /* @tp_base@ */ |
| 1073 | 0, /* @tp_dict@ */ |
| 1074 | 0, /* @tp_descr_get@ */ |
| 1075 | 0, /* @tp_descr_set@ */ |
| 1076 | 0, /* @tp_dictoffset@ */ |
| 1077 | 0, /* @tp_init@ */ |
| 1078 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1079 | tlsdx_pynew, /* @tp_new@ */ |
| 1080 | 0, /* @tp_free@ */ |
| 1081 | 0 /* @tp_is_gc@ */ |
| 1082 | }; |
| 1083 | |
| 1084 | static PyTypeObject tlsprf_pytype_skel = { |
| 1085 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 1086 | "TLSPRF", /* @tp_name@ */ |
| 1087 | sizeof(grand_pyobj), /* @tp_basicsize@ */ |
| 1088 | 0, /* @tp_itemsize@ */ |
| 1089 | |
| 1090 | grand_pydealloc, /* @tp_dealloc@ */ |
| 1091 | 0, /* @tp_print@ */ |
| 1092 | 0, /* @tp_getattr@ */ |
| 1093 | 0, /* @tp_setattr@ */ |
| 1094 | 0, /* @tp_compare@ */ |
| 1095 | 0, /* @tp_repr@ */ |
| 1096 | 0, /* @tp_as_number@ */ |
| 1097 | 0, /* @tp_as_sequence@ */ |
| 1098 | 0, /* @tp_as_mapping@ */ |
| 1099 | 0, /* @tp_hash@ */ |
| 1100 | 0, /* @tp_call@ */ |
| 1101 | 0, /* @tp_str@ */ |
| 1102 | 0, /* @tp_getattro@ */ |
| 1103 | 0, /* @tp_setattro@ */ |
| 1104 | 0, /* @tp_as_buffer@ */ |
| 1105 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 1106 | Py_TPFLAGS_BASETYPE, |
| 1107 | |
| 1108 | /* @tp_doc@ */ |
| 1109 | "TLSPRF(KEY, SEED, [lmac = md5_hmac], [rmac = sha_hmac]):\n\ |
| 1110 | TLS pseudorandom function.", |
| 1111 | |
| 1112 | 0, /* @tp_traverse@ */ |
| 1113 | 0, /* @tp_clear@ */ |
| 1114 | 0, /* @tp_richcompare@ */ |
| 1115 | 0, /* @tp_weaklistoffset@ */ |
| 1116 | 0, /* @tp_iter@ */ |
| 1117 | 0, /* @tp_iternext@ */ |
| 1118 | 0, /* @tp_methods@ */ |
| 1119 | 0, /* @tp_members@ */ |
| 1120 | 0, /* @tp_getset@ */ |
| 1121 | 0, /* @tp_base@ */ |
| 1122 | 0, /* @tp_dict@ */ |
| 1123 | 0, /* @tp_descr_get@ */ |
| 1124 | 0, /* @tp_descr_set@ */ |
| 1125 | 0, /* @tp_dictoffset@ */ |
| 1126 | 0, /* @tp_init@ */ |
| 1127 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1128 | tlsprf_pynew, /* @tp_new@ */ |
| 1129 | 0, /* @tp_free@ */ |
| 1130 | 0 /* @tp_is_gc@ */ |
| 1131 | }; |
| 1132 | |
| 1133 | /*----- DSA generator -----------------------------------------------------*/ |
| 1134 | |
| 1135 | static PyObject *dsarand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 1136 | { |
| 1137 | char *p; |
| 1138 | int sz; |
| 1139 | PyObject *rc = 0; |
| 1140 | char *kwlist[] = { "seed", 0 }; |
| 1141 | |
| 1142 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &p, &sz)) |
| 1143 | goto end; |
| 1144 | rc = grand_dopywrap(ty, dsarand_create(p, sz), f_freeme); |
| 1145 | end: |
| 1146 | return (rc); |
| 1147 | } |
| 1148 | |
| 1149 | static PyObject *drget_seed(PyObject *me, void *hunoz) |
| 1150 | { |
| 1151 | grand *r = GRAND_R(me); |
| 1152 | int n = r->ops->misc(r, DSARAND_SEEDSZ); |
| 1153 | PyObject *rc = bytestring_pywrap(0, n); |
| 1154 | r->ops->misc(r, DSARAND_GETSEED, PyString_AS_STRING(rc)); |
| 1155 | return (rc); |
| 1156 | } |
| 1157 | |
| 1158 | static PyGetSetDef dsarand_pygetset[] = { |
| 1159 | #define GETSETNAME(op, name) dr##op##_##name |
| 1160 | GET (seed, "R.seed -> current generator seed") |
| 1161 | #undef GETSETNAME |
| 1162 | { 0 } |
| 1163 | }; |
| 1164 | |
| 1165 | static PyTypeObject dsarand_pytype_skel = { |
| 1166 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 1167 | "DSARand", /* @tp_name@ */ |
| 1168 | sizeof(grand_pyobj), /* @tp_basicsize@ */ |
| 1169 | 0, /* @tp_itemsize@ */ |
| 1170 | |
| 1171 | grand_pydealloc, /* @tp_dealloc@ */ |
| 1172 | 0, /* @tp_print@ */ |
| 1173 | 0, /* @tp_getattr@ */ |
| 1174 | 0, /* @tp_setattr@ */ |
| 1175 | 0, /* @tp_compare@ */ |
| 1176 | 0, /* @tp_repr@ */ |
| 1177 | 0, /* @tp_as_number@ */ |
| 1178 | 0, /* @tp_as_sequence@ */ |
| 1179 | 0, /* @tp_as_mapping@ */ |
| 1180 | 0, /* @tp_hash@ */ |
| 1181 | 0, /* @tp_call@ */ |
| 1182 | 0, /* @tp_str@ */ |
| 1183 | 0, /* @tp_getattro@ */ |
| 1184 | 0, /* @tp_setattro@ */ |
| 1185 | 0, /* @tp_as_buffer@ */ |
| 1186 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 1187 | Py_TPFLAGS_BASETYPE, |
| 1188 | |
| 1189 | /* @tp_doc@ */ |
| 1190 | "DSARand(SEED): pseudorandom number generator for DSA parameters.", |
| 1191 | |
| 1192 | 0, /* @tp_traverse@ */ |
| 1193 | 0, /* @tp_clear@ */ |
| 1194 | 0, /* @tp_richcompare@ */ |
| 1195 | 0, /* @tp_weaklistoffset@ */ |
| 1196 | 0, /* @tp_iter@ */ |
| 1197 | 0, /* @tp_iternext@ */ |
| 1198 | 0, /* @tp_methods@ */ |
| 1199 | 0, /* @tp_members@ */ |
| 1200 | dsarand_pygetset, /* @tp_getset@ */ |
| 1201 | 0, /* @tp_base@ */ |
| 1202 | 0, /* @tp_dict@ */ |
| 1203 | 0, /* @tp_descr_get@ */ |
| 1204 | 0, /* @tp_descr_set@ */ |
| 1205 | 0, /* @tp_dictoffset@ */ |
| 1206 | 0, /* @tp_init@ */ |
| 1207 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1208 | dsarand_pynew, /* @tp_new@ */ |
| 1209 | 0, /* @tp_free@ */ |
| 1210 | 0 /* @tp_is_gc@ */ |
| 1211 | }; |
| 1212 | |
| 1213 | /*----- Blum-Blum-Shub generator ------------------------------------------*/ |
| 1214 | |
| 1215 | static PyObject *bbs_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 1216 | { |
| 1217 | mp *n = 0, *x = MP_TWO; |
| 1218 | PyObject *rc = 0; |
| 1219 | char *kwlist[] = { "n", "x", 0 }; |
| 1220 | |
| 1221 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&:new", kwlist, |
| 1222 | convmp, &n, convmp, &x)) |
| 1223 | goto end; |
| 1224 | rc = grand_dopywrap(ty, bbs_rand(n, x), f_freeme); |
| 1225 | end: |
| 1226 | mp_drop(n); |
| 1227 | mp_drop(x); |
| 1228 | return (rc); |
| 1229 | } |
| 1230 | |
| 1231 | static PyObject *bbsmeth_step(PyObject *me, PyObject *arg) |
| 1232 | { |
| 1233 | grand *r = GRAND_R(me); if (!PyArg_ParseTuple(arg, ":step")) return (0); |
| 1234 | r->ops->misc(r, BBS_STEP); RETURN_ME; |
| 1235 | } |
| 1236 | |
| 1237 | static PyObject *bbsmeth_bits(PyObject *me, PyObject *arg) |
| 1238 | { |
| 1239 | grand *r = GRAND_R(me); unsigned n; uint32 w; |
| 1240 | if (!PyArg_ParseTuple(arg, "O&:bits", convuint, &n)) goto end; |
| 1241 | if (n > 32) VALERR("can't get more than 32 bits"); |
| 1242 | r->ops->misc(r, BBS_BITS, n, &w); return (getulong(w)); |
| 1243 | end: |
| 1244 | return (0); |
| 1245 | } |
| 1246 | |
| 1247 | static PyObject *bbsmeth_wrap(PyObject *me, PyObject *arg) |
| 1248 | { |
| 1249 | grand *r = GRAND_R(me); if (!PyArg_ParseTuple(arg, ":wrap")) return (0); |
| 1250 | r->ops->misc(r, BBS_WRAP); RETURN_ME; |
| 1251 | } |
| 1252 | |
| 1253 | static PyObject *bbsget_n(PyObject *me, void *hunoz) |
| 1254 | { |
| 1255 | mp *x = MP_NEW; grand *r = GRAND_R(me); |
| 1256 | r->ops->misc(r, BBS_MOD, &x); return (mp_pywrap(x)); |
| 1257 | } |
| 1258 | |
| 1259 | static PyObject *bbsget_x(PyObject *me, void *hunoz) |
| 1260 | { |
| 1261 | mp *x = MP_NEW; grand *r = GRAND_R(me); |
| 1262 | r->ops->misc(r, BBS_STATE, &x); return (mp_pywrap(x)); |
| 1263 | } |
| 1264 | |
| 1265 | static int bbsset_x(PyObject *me, PyObject *val, void *hunoz) |
| 1266 | { |
| 1267 | mp *x = 0; grand *r = GRAND_R(me); int rc = -1; if (!x) NIERR("__del__"); |
| 1268 | if ((x = getmp(val)) == 0) goto end; |
| 1269 | r->ops->misc(r, BBS_SET, x); rc = 0; |
| 1270 | end: mp_drop(x); return (rc); |
| 1271 | } |
| 1272 | |
| 1273 | static PyObject *bbsget_stepsz(PyObject *me, void *hunoz) |
| 1274 | { |
| 1275 | grand *r = GRAND_R(me); |
| 1276 | return (PyInt_FromLong(r->ops->misc(r, BBS_STEPSZ))); |
| 1277 | } |
| 1278 | |
| 1279 | static PyMethodDef bbs_pymethods[] = { |
| 1280 | #define METHNAME(name) bbsmeth_##name |
| 1281 | METH (step, "R.step(): steps the generator (not useful)") |
| 1282 | METH (bits, "R.bits(N) -> W: returns N bits (<= 32) from the generator") |
| 1283 | METH (wrap, "R.wrap(): flushes unused bits in internal buffer") |
| 1284 | #undef METHNAME |
| 1285 | { 0 } |
| 1286 | }; |
| 1287 | |
| 1288 | static PyGetSetDef bbs_pygetset[] = { |
| 1289 | #define GETSETNAME(op, name) bbs##op##_##name |
| 1290 | GET (n, "R.n -> Blum modulus") |
| 1291 | GETSET(x, "R.x -> current seed value") |
| 1292 | GET (stepsz, "R.stepsz -> number of bits generated per step") |
| 1293 | #undef GETSETNAME |
| 1294 | { 0 } |
| 1295 | }; |
| 1296 | |
| 1297 | static PyTypeObject bbs_pytype_skel = { |
| 1298 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 1299 | "BlumBlumShub", /* @tp_name@ */ |
| 1300 | sizeof(grand_pyobj), /* @tp_basicsize@ */ |
| 1301 | 0, /* @tp_itemsize@ */ |
| 1302 | |
| 1303 | grand_pydealloc, /* @tp_dealloc@ */ |
| 1304 | 0, /* @tp_print@ */ |
| 1305 | 0, /* @tp_getattr@ */ |
| 1306 | 0, /* @tp_setattr@ */ |
| 1307 | 0, /* @tp_compare@ */ |
| 1308 | 0, /* @tp_repr@ */ |
| 1309 | 0, /* @tp_as_number@ */ |
| 1310 | 0, /* @tp_as_sequence@ */ |
| 1311 | 0, /* @tp_as_mapping@ */ |
| 1312 | 0, /* @tp_hash@ */ |
| 1313 | 0, /* @tp_call@ */ |
| 1314 | 0, /* @tp_str@ */ |
| 1315 | 0, /* @tp_getattro@ */ |
| 1316 | 0, /* @tp_setattro@ */ |
| 1317 | 0, /* @tp_as_buffer@ */ |
| 1318 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 1319 | Py_TPFLAGS_BASETYPE, |
| 1320 | |
| 1321 | /* @tp_doc@ */ |
| 1322 | "BlumBlumShub(N, [x = 2]): Blum-Blum-Shub pseudorandom number generator.", |
| 1323 | |
| 1324 | 0, /* @tp_traverse@ */ |
| 1325 | 0, /* @tp_clear@ */ |
| 1326 | 0, /* @tp_richcompare@ */ |
| 1327 | 0, /* @tp_weaklistoffset@ */ |
| 1328 | 0, /* @tp_iter@ */ |
| 1329 | 0, /* @tp_iternext@ */ |
| 1330 | bbs_pymethods, /* @tp_methods@ */ |
| 1331 | 0, /* @tp_members@ */ |
| 1332 | bbs_pygetset, /* @tp_getset@ */ |
| 1333 | 0, /* @tp_base@ */ |
| 1334 | 0, /* @tp_dict@ */ |
| 1335 | 0, /* @tp_descr_get@ */ |
| 1336 | 0, /* @tp_descr_set@ */ |
| 1337 | 0, /* @tp_dictoffset@ */ |
| 1338 | 0, /* @tp_init@ */ |
| 1339 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1340 | bbs_pynew, /* @tp_new@ */ |
| 1341 | 0, /* @tp_free@ */ |
| 1342 | 0 /* @tp_is_gc@ */ |
| 1343 | }; |
| 1344 | |
| 1345 | typedef struct bbspriv_pyobj { |
| 1346 | grand_pyobj gr; |
| 1347 | bbs_priv bp; |
| 1348 | } bbspriv_pyobj; |
| 1349 | |
| 1350 | #define BBSPRIV_BP(o) (&((bbspriv_pyobj *)(o))->bp) |
| 1351 | |
| 1352 | static PyObject *bbspriv_pynew(PyTypeObject *ty, |
| 1353 | PyObject *arg, PyObject *kw) |
| 1354 | { |
| 1355 | mp *p = 0, *q = 0, *n = 0, *x = MP_TWO; |
| 1356 | bbspriv_pyobj *rc = 0; |
| 1357 | char *kwlist[] = { "n", "p", "q", "seed", 0 }; |
| 1358 | |
| 1359 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&O&O&O&:new", kwlist, |
| 1360 | convmp, &n, convmp, &p, convmp, &q, |
| 1361 | convmp, &x)) |
| 1362 | goto end; |
| 1363 | if (!n + !p + !q > 1) VALERR("must specify at least two of n, p, q"); |
| 1364 | if (!n) n = mp_mul(MP_NEW, p, q); |
| 1365 | else if (!p) mp_div(&p, 0, n, q); |
| 1366 | else if (!q) mp_div(&q, 0, n, p); |
| 1367 | rc = (bbspriv_pyobj *)ty->tp_alloc(ty, 0); |
| 1368 | rc->gr.r = bbs_rand(n, x); |
| 1369 | rc->gr.f = f_freeme; |
| 1370 | rc->bp.p = MP_COPY(p); |
| 1371 | rc->bp.q = MP_COPY(q); |
| 1372 | rc->bp.n = MP_COPY(n); |
| 1373 | end: |
| 1374 | mp_drop(p); mp_drop(q); mp_drop(n); mp_drop(x); |
| 1375 | return ((PyObject *)rc); |
| 1376 | } |
| 1377 | |
| 1378 | static PyObject *meth__BBSPriv_generate(PyObject *me, |
| 1379 | PyObject *arg, PyObject *kw) |
| 1380 | { |
| 1381 | bbs_priv bp = { 0 }; |
| 1382 | mp *x = MP_TWO; |
| 1383 | pgev evt = { 0 }; |
| 1384 | unsigned nbits, n = 0; |
| 1385 | grand *r = &rand_global; |
| 1386 | char *kwlist[] = { "class", "nbits", "event", "rng", "nsteps", "seed", 0 }; |
| 1387 | bbspriv_pyobj *rc = 0; |
| 1388 | |
| 1389 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO&|O&O&O&O&:generate", kwlist, |
| 1390 | &me, convuint, &nbits, convpgev, &evt, |
| 1391 | convgrand, &r, convuint, &n, convmp, &x)) |
| 1392 | goto end; |
| 1393 | if (bbs_gen(&bp, nbits, r, n, evt.proc, evt.ctx)) |
| 1394 | VALERR("prime genration failed"); |
| 1395 | rc = PyObject_New(bbspriv_pyobj, bbspriv_pytype); |
| 1396 | rc->gr.r = bbs_rand(bp.n, x); |
| 1397 | rc->gr.f = f_freeme; |
| 1398 | rc->bp.p = MP_COPY(bp.p); |
| 1399 | rc->bp.q = MP_COPY(bp.q); |
| 1400 | rc->bp.n = MP_COPY(bp.n); |
| 1401 | end: |
| 1402 | mp_drop(bp.p); mp_drop(bp.q); mp_drop(bp.n); mp_drop(x); |
| 1403 | return ((PyObject *)rc); |
| 1404 | } |
| 1405 | |
| 1406 | static void bbspriv_pydealloc(PyObject *me) |
| 1407 | { |
| 1408 | bbs_priv *bp = BBSPRIV_BP(me); |
| 1409 | mp_drop(bp->n); |
| 1410 | mp_drop(bp->p); |
| 1411 | mp_drop(bp->q); |
| 1412 | grand_pydealloc(me); |
| 1413 | } |
| 1414 | |
| 1415 | static PyObject *bpmeth_ff(PyObject *me, PyObject *arg) |
| 1416 | { |
| 1417 | mp *n = 0; grand *r = GRAND_R(me); bbs_priv *bp = BBSPRIV_BP(me); |
| 1418 | if (!PyArg_ParseTuple(arg, "O&:ff", convmp, &n)) return (0); |
| 1419 | r->ops->misc(r, BBS_FF, bp, n); RETURN_ME; |
| 1420 | } |
| 1421 | |
| 1422 | static PyObject *bpmeth_rew(PyObject *me, PyObject *arg) |
| 1423 | { |
| 1424 | mp *n = 0; grand *r = GRAND_R(me); bbs_priv *bp = BBSPRIV_BP(me); |
| 1425 | if (!PyArg_ParseTuple(arg, "O&:rew", convmp, &n)) return (0); |
| 1426 | r->ops->misc(r, BBS_REW, bp, n); RETURN_ME; |
| 1427 | } |
| 1428 | |
| 1429 | static PyObject *bpget_n(PyObject *me, void *hunoz) |
| 1430 | { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->n))); } |
| 1431 | |
| 1432 | static PyObject *bpget_p(PyObject *me, void *hunoz) |
| 1433 | { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->p))); } |
| 1434 | |
| 1435 | static PyObject *bpget_q(PyObject *me, void *hunoz) |
| 1436 | { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->q))); } |
| 1437 | |
| 1438 | static PyMethodDef bbspriv_pymethods[] = { |
| 1439 | #define METHNAME(name) bpmeth_##name |
| 1440 | METH (ff, "R.ff(N): fast-forward N places") |
| 1441 | METH (rew, "R.rew(N): rewind N places") |
| 1442 | #undef METHNAME |
| 1443 | { 0 } |
| 1444 | }; |
| 1445 | |
| 1446 | static PyGetSetDef bbspriv_pygetset[] = { |
| 1447 | #define GETSETNAME(op, name) bp##op##_##name |
| 1448 | GET (n, "R.n -> Blum modulus") |
| 1449 | GET (p, "R.p -> one of the factors of the modulus") |
| 1450 | GET (q, "R.q -> one of the factors of the modulus") |
| 1451 | #undef GETSETNAME |
| 1452 | { 0 } |
| 1453 | }; |
| 1454 | |
| 1455 | static PyTypeObject bbspriv_pytype_skel = { |
| 1456 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 1457 | "BBSPriv", /* @tp_name@ */ |
| 1458 | sizeof(bbspriv_pyobj), /* @tp_basicsize@ */ |
| 1459 | 0, /* @tp_itemsize@ */ |
| 1460 | |
| 1461 | bbspriv_pydealloc, /* @tp_dealloc@ */ |
| 1462 | 0, /* @tp_print@ */ |
| 1463 | 0, /* @tp_getattr@ */ |
| 1464 | 0, /* @tp_setattr@ */ |
| 1465 | 0, /* @tp_compare@ */ |
| 1466 | 0, /* @tp_repr@ */ |
| 1467 | 0, /* @tp_as_number@ */ |
| 1468 | 0, /* @tp_as_sequence@ */ |
| 1469 | 0, /* @tp_as_mapping@ */ |
| 1470 | 0, /* @tp_hash@ */ |
| 1471 | 0, /* @tp_call@ */ |
| 1472 | 0, /* @tp_str@ */ |
| 1473 | 0, /* @tp_getattro@ */ |
| 1474 | 0, /* @tp_setattro@ */ |
| 1475 | 0, /* @tp_as_buffer@ */ |
| 1476 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 1477 | Py_TPFLAGS_BASETYPE, |
| 1478 | |
| 1479 | /* @tp_doc@ */ |
| 1480 | "BBSPriv(..., seed = 2]): Blum-Blum-Shub, with private key.\n\ |
| 1481 | Keywords: n, p, q; must provide at least two", |
| 1482 | |
| 1483 | 0, /* @tp_traverse@ */ |
| 1484 | 0, /* @tp_clear@ */ |
| 1485 | 0, /* @tp_richcompare@ */ |
| 1486 | 0, /* @tp_weaklistoffset@ */ |
| 1487 | 0, /* @tp_iter@ */ |
| 1488 | 0, /* @tp_iternext@ */ |
| 1489 | bbspriv_pymethods, /* @tp_methods@ */ |
| 1490 | 0, /* @tp_members@ */ |
| 1491 | bbspriv_pygetset, /* @tp_getset@ */ |
| 1492 | 0, /* @tp_base@ */ |
| 1493 | 0, /* @tp_dict@ */ |
| 1494 | 0, /* @tp_descr_get@ */ |
| 1495 | 0, /* @tp_descr_set@ */ |
| 1496 | 0, /* @tp_dictoffset@ */ |
| 1497 | 0, /* @tp_init@ */ |
| 1498 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1499 | bbspriv_pynew, /* @tp_new@ */ |
| 1500 | 0, /* @tp_free@ */ |
| 1501 | 0 /* @tp_is_gc@ */ |
| 1502 | }; |
| 1503 | |
| 1504 | /*----- Global stuff ------------------------------------------------------*/ |
| 1505 | |
| 1506 | static PyMethodDef methods[] = { |
| 1507 | #define METHNAME(name) meth_##name |
| 1508 | KWMETH(_BBSPriv_generate, "\ |
| 1509 | generate(NBITS, [event = pgen_nullev, rng = rand, nsteps = 0, seed = 2])") |
| 1510 | #undef METHNAME |
| 1511 | { 0 } |
| 1512 | }; |
| 1513 | |
| 1514 | void rand_pyinit(void) |
| 1515 | { |
| 1516 | INITTYPE(grand, root); |
| 1517 | INITTYPE(truerand, grand); |
| 1518 | INITTYPE(fibrand, grand); |
| 1519 | INITTYPE(lcrand, grand); |
| 1520 | INITTYPE(dsarand, grand); |
| 1521 | INITTYPE(bbs, grand); |
| 1522 | INITTYPE(bbspriv, bbs); |
| 1523 | INITTYPE(sslprf, grand); |
| 1524 | INITTYPE(tlsdx, grand); |
| 1525 | INITTYPE(tlsprf, grand); |
| 1526 | INITTYPE(gccrand, type); |
| 1527 | INITTYPE(gcrand, grand); |
| 1528 | INITTYPE(gclatinrand, gcrand); |
| 1529 | rand_noisesrc(RAND_GLOBAL, &noise_source); |
| 1530 | rand_seed(RAND_GLOBAL, 160); |
| 1531 | addmethods(methods); |
| 1532 | } |
| 1533 | |
| 1534 | #define gccrand gccrand_info |
| 1535 | GEN(gccrands, crand) |
| 1536 | |
| 1537 | void rand_pyinsert(PyObject *mod) |
| 1538 | { |
| 1539 | INSERT("GRand", grand_pytype); |
| 1540 | INSERT("TrueRand", truerand_pytype); |
| 1541 | INSERT("LCRand", lcrand_pytype); |
| 1542 | INSERT("FibRand", fibrand_pytype); |
| 1543 | INSERT("SSLRand", sslprf_pytype); |
| 1544 | INSERT("TLSDataExpansion", tlsdx_pytype); |
| 1545 | INSERT("TLSPRF", tlsprf_pytype); |
| 1546 | INSERT("DSARand", dsarand_pytype); |
| 1547 | INSERT("BlumBlumShub", bbs_pytype); |
| 1548 | INSERT("BBSPriv", bbspriv_pytype); |
| 1549 | INSERT("GCCRand", gccrand_pytype); |
| 1550 | INSERT("GCRand", gcrand_pytype); |
| 1551 | INSERT("GCLatinRand", gclatinrand_pytype); |
| 1552 | rand_pyobj = grand_pywrap(&rand_global, 0); Py_INCREF(rand_pyobj); |
| 1553 | gccrands_dict = gccrands(); Py_INCREF(gccrands_dict); |
| 1554 | INSERT("gccrands", gccrands_dict); |
| 1555 | INSERT("rand", rand_pyobj); |
| 1556 | } |
| 1557 | |
| 1558 | /*----- That's all, folks -------------------------------------------------*/ |