| 1 | /* -*-c-*- |
| 2 | * |
| 3 | * Symmetric cryptography |
| 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 | /*----- Key sizes ---------------------------------------------------------*/ |
| 33 | |
| 34 | PyTypeObject *keysz_pytype; |
| 35 | PyTypeObject *keyszany_pytype, *keyszrange_pytype, *keyszset_pytype; |
| 36 | PyObject *sha_pyobj, *has160_pyobj; |
| 37 | |
| 38 | PyObject *keysz_pywrap(const octet *k) |
| 39 | { |
| 40 | switch (k[0]) { |
| 41 | case KSZ_ANY: { |
| 42 | keysz_pyobj *o = PyObject_New(keysz_pyobj, keyszany_pytype); |
| 43 | o->dfl = k[1]; |
| 44 | return ((PyObject *)o); |
| 45 | } break; |
| 46 | case KSZ_RANGE: { |
| 47 | keyszrange_pyobj *o = |
| 48 | PyObject_New(keyszrange_pyobj, keyszrange_pytype); |
| 49 | o->dfl = k[1]; |
| 50 | o->min = k[2]; |
| 51 | o->max = k[3]; |
| 52 | o->mod = k[4]; |
| 53 | if (!o->mod) o->mod = 1; |
| 54 | return ((PyObject *)o); |
| 55 | } break; |
| 56 | case KSZ_SET: { |
| 57 | keyszset_pyobj *o = |
| 58 | PyObject_New(keyszset_pyobj, keyszset_pytype); |
| 59 | int i, n; |
| 60 | o->dfl = k[1]; |
| 61 | for (i = 0; k[i + 1]; i++) ; |
| 62 | n = i; o->set = PyTuple_New(n); |
| 63 | for (i = 0; i < n; i++) |
| 64 | PyTuple_SET_ITEM(o->set, i, PyInt_FromLong(k[i + 1])); |
| 65 | return ((PyObject *)o); |
| 66 | } break; |
| 67 | default: |
| 68 | abort(); |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | static PyObject *keyszany_pynew(PyTypeObject *ty, |
| 73 | PyObject *arg, PyObject *kw) |
| 74 | { |
| 75 | char *kwlist[] = { "default", 0 }; |
| 76 | int dfl; |
| 77 | keysz_pyobj *o; |
| 78 | |
| 79 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "i:new", kwlist, &dfl)) |
| 80 | goto end; |
| 81 | if (dfl < 0) VALERR("key size cannot be negative"); |
| 82 | o = (keysz_pyobj *)ty->tp_alloc(ty, 0); |
| 83 | o->dfl = dfl; |
| 84 | return ((PyObject *)o); |
| 85 | end: |
| 86 | return (0); |
| 87 | } |
| 88 | |
| 89 | static PyObject *keyszrange_pynew(PyTypeObject *ty, |
| 90 | PyObject *arg, PyObject *kw) |
| 91 | { |
| 92 | char *kwlist[] = { "default", "min", "max", "mod", 0 }; |
| 93 | int dfl, min = 0, max = 0, mod = 1; |
| 94 | keyszrange_pyobj *o; |
| 95 | |
| 96 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "i|iii:new", kwlist, |
| 97 | &dfl, &min, &max, &mod)) |
| 98 | goto end; |
| 99 | if (dfl < 0 || min < 0 || max < 0) |
| 100 | VALERR("key size cannot be negative"); |
| 101 | if (min > dfl || (max && dfl > max)) |
| 102 | VALERR("bad key size bounds"); |
| 103 | if (mod <= 0 || dfl % mod || min % mod || max % mod) |
| 104 | VALERR("bad key size modulus"); |
| 105 | o = (keyszrange_pyobj *)ty->tp_alloc(ty, 0); |
| 106 | o->dfl = dfl; |
| 107 | o->min = min; |
| 108 | o->max = max; |
| 109 | o->mod = mod; |
| 110 | return ((PyObject *)o); |
| 111 | end: |
| 112 | return (0); |
| 113 | } |
| 114 | |
| 115 | static PyObject *keyszset_pynew(PyTypeObject *ty, |
| 116 | PyObject *arg, PyObject *kw) |
| 117 | { |
| 118 | char *kwlist[] = { "default", "set", 0 }; |
| 119 | int dfl, i, n, xx; |
| 120 | PyObject *set = 0; |
| 121 | PyObject *x = 0, *l = 0; |
| 122 | keyszset_pyobj *o = 0; |
| 123 | |
| 124 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "i|O:new", kwlist, |
| 125 | &dfl, &set)) |
| 126 | goto end; |
| 127 | if (!set) set = PyTuple_New(0); |
| 128 | else Py_INCREF(set); |
| 129 | if (!PySequence_Check(set)) TYERR("want a sequence"); |
| 130 | n = PySequence_Size(set); |
| 131 | l = PyList_New(0); |
| 132 | if (PyErr_Occurred()) goto end; |
| 133 | if (dfl < 0) VALERR("key size cannot be negative"); |
| 134 | x = PyInt_FromLong(dfl); |
| 135 | PyList_Append(l, x); |
| 136 | Py_DECREF(x); |
| 137 | x = 0; |
| 138 | for (i = 0; i < n; i++) { |
| 139 | if ((x = PySequence_GetItem(set, i)) == 0) goto end; |
| 140 | xx = PyInt_AsLong(x); |
| 141 | if (PyErr_Occurred()) goto end; |
| 142 | if (xx == dfl) continue; |
| 143 | if (xx < 0) VALERR("key size cannot be negative"); |
| 144 | PyList_Append(l, x); |
| 145 | Py_DECREF(x); |
| 146 | x = 0; |
| 147 | } |
| 148 | Py_DECREF(set); |
| 149 | if ((set = PySequence_Tuple(l)) == 0) goto end; |
| 150 | o = (keyszset_pyobj *)ty->tp_alloc(ty, 0); |
| 151 | o->dfl = dfl; |
| 152 | o->set = set; |
| 153 | Py_INCREF(set); |
| 154 | end: |
| 155 | Py_XDECREF(set); |
| 156 | Py_XDECREF(l); |
| 157 | Py_XDECREF(x); |
| 158 | return ((PyObject *)o); |
| 159 | } |
| 160 | |
| 161 | static PyObject *kaget_min(PyObject *me, void *hunoz) |
| 162 | { return (PyInt_FromLong(0)); } |
| 163 | #define kaget_max kaget_min |
| 164 | |
| 165 | static PyObject *ksget_min(PyObject *me, void *hunoz) |
| 166 | { |
| 167 | PyObject *set = ((keyszset_pyobj *)me)->set; |
| 168 | int i, n, y, x = -1; |
| 169 | n = PyTuple_Size(set); |
| 170 | for (i = 0; i < n; i++) { |
| 171 | y = PyInt_AsLong(PyTuple_GetItem(set, i)); |
| 172 | if (x == -1 || y < x) x = y; |
| 173 | } |
| 174 | return (PyInt_FromLong(x)); |
| 175 | } |
| 176 | |
| 177 | static PyObject *ksget_max(PyObject *me, void *hunoz) |
| 178 | { |
| 179 | PyObject *set = ((keyszset_pyobj *)me)->set; |
| 180 | int i, n, y, x = -1; |
| 181 | n = PyTuple_Size(set); |
| 182 | for (i = 0; i < n; i++) { |
| 183 | y = PyInt_AsLong(PyTuple_GetItem(set, i)); |
| 184 | if (y > x) x = y; |
| 185 | } |
| 186 | return (PyInt_FromLong(x)); |
| 187 | } |
| 188 | |
| 189 | static PyMemberDef keysz_pymembers[] = { |
| 190 | #define MEMBERSTRUCT keysz_pyobj |
| 191 | #define default dfl /* ugh! */ |
| 192 | MEMBER(default, T_INT, READONLY, "KSZ.default -> default key size") |
| 193 | #undef default |
| 194 | #undef MEMBERSTRUCT |
| 195 | { 0 } |
| 196 | }; |
| 197 | |
| 198 | static PyGetSetDef keyszany_pygetset[] = { |
| 199 | #define GETSETNAME(op, name) ka##op##_##name |
| 200 | GET (min, "KSZ.min -> smallest allowed key size") |
| 201 | GET (max, "KSZ.min -> largest allowed key size") |
| 202 | #undef GETSETNAME |
| 203 | { 0 } |
| 204 | }; |
| 205 | |
| 206 | static PyMemberDef keyszrange_pymembers[] = { |
| 207 | #define MEMBERSTRUCT keyszrange_pyobj |
| 208 | MEMBER(min, T_INT, READONLY, "KSZ.min -> smallest allowed key size") |
| 209 | MEMBER(max, T_INT, READONLY, "KSZ.min -> largest allowed key size") |
| 210 | MEMBER(mod, T_INT, READONLY, |
| 211 | "KSZ.mod -> key size must be a multiple of this") |
| 212 | #undef MEMBERSTRUCT |
| 213 | { 0 } |
| 214 | }; |
| 215 | |
| 216 | static PyGetSetDef keyszset_pygetset[] = { |
| 217 | #define GETSETNAME(op, name) ks##op##_##name |
| 218 | GET (min, "KSZ.min -> smallest allowed key size") |
| 219 | GET (max, "KSZ.min -> largest allowed key size") |
| 220 | #undef GETSETNAME |
| 221 | { 0 } |
| 222 | }; |
| 223 | |
| 224 | static PyMemberDef keyszset_pymembers[] = { |
| 225 | #define MEMBERSTRUCT keyszset_pyobj |
| 226 | MEMBER(set, T_OBJECT, READONLY, "KSZ.set -> allowed key sizes") |
| 227 | #undef MEMBERSTRUCT |
| 228 | { 0 } |
| 229 | }; |
| 230 | |
| 231 | static PyTypeObject keysz_pytype_skel = { |
| 232 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 233 | "catacomb.KeySZ", /* @tp_name@ */ |
| 234 | sizeof(keysz_pyobj), /* @tp_basicsize@ */ |
| 235 | 0, /* @tp_itemsize@ */ |
| 236 | |
| 237 | 0, /* @tp_dealloc@ */ |
| 238 | 0, /* @tp_print@ */ |
| 239 | 0, /* @tp_getattr@ */ |
| 240 | 0, /* @tp_setattr@ */ |
| 241 | 0, /* @tp_compare@ */ |
| 242 | 0, /* @tp_repr@ */ |
| 243 | 0, /* @tp_as_number@ */ |
| 244 | 0, /* @tp_as_sequence@ */ |
| 245 | 0, /* @tp_as_mapping@ */ |
| 246 | 0, /* @tp_hash@ */ |
| 247 | 0, /* @tp_call@ */ |
| 248 | 0, /* @tp_str@ */ |
| 249 | 0, /* @tp_getattro@ */ |
| 250 | 0, /* @tp_setattro@ */ |
| 251 | 0, /* @tp_as_buffer@ */ |
| 252 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 253 | Py_TPFLAGS_BASETYPE, |
| 254 | |
| 255 | /* @tp_doc@ */ |
| 256 | "Key size constraints.", |
| 257 | |
| 258 | 0, /* @tp_traverse@ */ |
| 259 | 0, /* @tp_clear@ */ |
| 260 | 0, /* @tp_richcompare@ */ |
| 261 | 0, /* @tp_weaklistoffset@ */ |
| 262 | 0, /* @tp_iter@ */ |
| 263 | 0, /* @tp_iternext@ */ |
| 264 | 0, /* @tp_methods@ */ |
| 265 | keysz_pymembers, /* @tp_members@ */ |
| 266 | 0, /* @tp_getset@ */ |
| 267 | 0, /* @tp_base@ */ |
| 268 | 0, /* @tp_dict@ */ |
| 269 | 0, /* @tp_descr_get@ */ |
| 270 | 0, /* @tp_descr_set@ */ |
| 271 | 0, /* @tp_dictoffset@ */ |
| 272 | 0, /* @tp_init@ */ |
| 273 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 274 | abstract_pynew, /* @tp_new@ */ |
| 275 | 0, /* @tp_free@ */ |
| 276 | 0 /* @tp_is_gc@ */ |
| 277 | }; |
| 278 | |
| 279 | static PyTypeObject keyszany_pytype_skel = { |
| 280 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 281 | "catacomb.KeySZAny", /* @tp_name@ */ |
| 282 | sizeof(keysz_pyobj), /* @tp_basicsize@ */ |
| 283 | 0, /* @tp_itemsize@ */ |
| 284 | |
| 285 | 0, /* @tp_dealloc@ */ |
| 286 | 0, /* @tp_print@ */ |
| 287 | 0, /* @tp_getattr@ */ |
| 288 | 0, /* @tp_setattr@ */ |
| 289 | 0, /* @tp_compare@ */ |
| 290 | 0, /* @tp_repr@ */ |
| 291 | 0, /* @tp_as_number@ */ |
| 292 | 0, /* @tp_as_sequence@ */ |
| 293 | 0, /* @tp_as_mapping@ */ |
| 294 | 0, /* @tp_hash@ */ |
| 295 | 0, /* @tp_call@ */ |
| 296 | 0, /* @tp_str@ */ |
| 297 | 0, /* @tp_getattro@ */ |
| 298 | 0, /* @tp_setattro@ */ |
| 299 | 0, /* @tp_as_buffer@ */ |
| 300 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 301 | Py_TPFLAGS_BASETYPE, |
| 302 | |
| 303 | /* @tp_doc@ */ |
| 304 | "Key size constraints. This object imposes no constraints on size.", |
| 305 | |
| 306 | 0, /* @tp_traverse@ */ |
| 307 | 0, /* @tp_clear@ */ |
| 308 | 0, /* @tp_richcompare@ */ |
| 309 | 0, /* @tp_weaklistoffset@ */ |
| 310 | 0, /* @tp_iter@ */ |
| 311 | 0, /* @tp_iternext@ */ |
| 312 | 0, /* @tp_methods@ */ |
| 313 | 0, /* @tp_members@ */ |
| 314 | keyszany_pygetset, /* @tp_getset@ */ |
| 315 | 0, /* @tp_base@ */ |
| 316 | 0, /* @tp_dict@ */ |
| 317 | 0, /* @tp_descr_get@ */ |
| 318 | 0, /* @tp_descr_set@ */ |
| 319 | 0, /* @tp_dictoffset@ */ |
| 320 | 0, /* @tp_init@ */ |
| 321 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 322 | keyszany_pynew, /* @tp_new@ */ |
| 323 | 0, /* @tp_free@ */ |
| 324 | 0 /* @tp_is_gc@ */ |
| 325 | }; |
| 326 | |
| 327 | static PyTypeObject keyszrange_pytype_skel = { |
| 328 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 329 | "catacomb.KeySZRange", /* @tp_name@ */ |
| 330 | sizeof(keyszrange_pyobj), /* @tp_basicsize@ */ |
| 331 | 0, /* @tp_itemsize@ */ |
| 332 | |
| 333 | 0, /* @tp_dealloc@ */ |
| 334 | 0, /* @tp_print@ */ |
| 335 | 0, /* @tp_getattr@ */ |
| 336 | 0, /* @tp_setattr@ */ |
| 337 | 0, /* @tp_compare@ */ |
| 338 | 0, /* @tp_repr@ */ |
| 339 | 0, /* @tp_as_number@ */ |
| 340 | 0, /* @tp_as_sequence@ */ |
| 341 | 0, /* @tp_as_mapping@ */ |
| 342 | 0, /* @tp_hash@ */ |
| 343 | 0, /* @tp_call@ */ |
| 344 | 0, /* @tp_str@ */ |
| 345 | 0, /* @tp_getattro@ */ |
| 346 | 0, /* @tp_setattro@ */ |
| 347 | 0, /* @tp_as_buffer@ */ |
| 348 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 349 | Py_TPFLAGS_BASETYPE, |
| 350 | |
| 351 | /* @tp_doc@ */ |
| 352 | "Key size constraints. This object asserts minimum and maximum (if\n\ |
| 353 | sizes, and requires the key length to be a multiple of some value.", |
| 354 | |
| 355 | 0, /* @tp_traverse@ */ |
| 356 | 0, /* @tp_clear@ */ |
| 357 | 0, /* @tp_richcompare@ */ |
| 358 | 0, /* @tp_weaklistoffset@ */ |
| 359 | 0, /* @tp_iter@ */ |
| 360 | 0, /* @tp_iternext@ */ |
| 361 | 0, /* @tp_methods@ */ |
| 362 | keyszrange_pymembers, /* @tp_members@ */ |
| 363 | 0, /* @tp_getset@ */ |
| 364 | 0, /* @tp_base@ */ |
| 365 | 0, /* @tp_dict@ */ |
| 366 | 0, /* @tp_descr_get@ */ |
| 367 | 0, /* @tp_descr_set@ */ |
| 368 | 0, /* @tp_dictoffset@ */ |
| 369 | 0, /* @tp_init@ */ |
| 370 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 371 | keyszrange_pynew, /* @tp_new@ */ |
| 372 | 0, /* @tp_free@ */ |
| 373 | 0 /* @tp_is_gc@ */ |
| 374 | }; |
| 375 | |
| 376 | static PyTypeObject keyszset_pytype_skel = { |
| 377 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 378 | "catacomb.KeySZSet", /* @tp_name@ */ |
| 379 | sizeof(keyszset_pyobj), /* @tp_basicsize@ */ |
| 380 | 0, /* @tp_itemsize@ */ |
| 381 | |
| 382 | 0, /* @tp_dealloc@ */ |
| 383 | 0, /* @tp_print@ */ |
| 384 | 0, /* @tp_getattr@ */ |
| 385 | 0, /* @tp_setattr@ */ |
| 386 | 0, /* @tp_compare@ */ |
| 387 | 0, /* @tp_repr@ */ |
| 388 | 0, /* @tp_as_number@ */ |
| 389 | 0, /* @tp_as_sequence@ */ |
| 390 | 0, /* @tp_as_mapping@ */ |
| 391 | 0, /* @tp_hash@ */ |
| 392 | 0, /* @tp_call@ */ |
| 393 | 0, /* @tp_str@ */ |
| 394 | 0, /* @tp_getattro@ */ |
| 395 | 0, /* @tp_setattro@ */ |
| 396 | 0, /* @tp_as_buffer@ */ |
| 397 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 398 | Py_TPFLAGS_BASETYPE, |
| 399 | |
| 400 | /* @tp_doc@ */ |
| 401 | "Key size constraints. This object requires the key to be one of a\n\ |
| 402 | few listed sizes.", |
| 403 | |
| 404 | 0, /* @tp_traverse@ */ |
| 405 | 0, /* @tp_clear@ */ |
| 406 | 0, /* @tp_richcompare@ */ |
| 407 | 0, /* @tp_weaklistoffset@ */ |
| 408 | 0, /* @tp_iter@ */ |
| 409 | 0, /* @tp_iternext@ */ |
| 410 | 0, /* @tp_methods@ */ |
| 411 | keyszset_pymembers, /* @tp_members@ */ |
| 412 | keyszset_pygetset, /* @tp_getset@ */ |
| 413 | 0, /* @tp_base@ */ |
| 414 | 0, /* @tp_dict@ */ |
| 415 | 0, /* @tp_descr_get@ */ |
| 416 | 0, /* @tp_descr_set@ */ |
| 417 | 0, /* @tp_dictoffset@ */ |
| 418 | 0, /* @tp_init@ */ |
| 419 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 420 | keyszset_pynew, /* @tp_new@ */ |
| 421 | 0, /* @tp_free@ */ |
| 422 | 0 /* @tp_is_gc@ */ |
| 423 | }; |
| 424 | |
| 425 | /*----- Symmetric encryption ----------------------------------------------*/ |
| 426 | |
| 427 | PyTypeObject *gccipher_pytype, *gcipher_pytype; |
| 428 | |
| 429 | CONVFUNC(gccipher, gccipher *, GCCIPHER_CC) |
| 430 | CONVFUNC(gcipher, gcipher *, GCIPHER_C) |
| 431 | |
| 432 | PyObject *gcipher_pywrap(PyObject *cobj, gcipher *c, unsigned f) |
| 433 | { |
| 434 | gcipher_pyobj *g; |
| 435 | if (!cobj) cobj = gccipher_pywrap((/*unconst*/ gccipher *)GC_CLASS(c)); |
| 436 | else Py_INCREF(cobj); |
| 437 | g = PyObject_NEW(gcipher_pyobj, (PyTypeObject *)cobj); |
| 438 | g->c = c; |
| 439 | g->f = f; |
| 440 | return ((PyObject *)g); |
| 441 | } |
| 442 | |
| 443 | static PyObject *gcipher_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 444 | { |
| 445 | char *kwlist[] = { "k", 0 }; |
| 446 | char *k; |
| 447 | int sz; |
| 448 | |
| 449 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &sz)) |
| 450 | goto end; |
| 451 | if (keysz(sz, GCCIPHER_CC(ty)->keysz) != sz) VALERR("bad key length"); |
| 452 | return (gcipher_pywrap((PyObject *)ty, |
| 453 | GC_INIT(GCCIPHER_CC(ty), k, sz), |
| 454 | f_freeme)); |
| 455 | end: |
| 456 | return (0); |
| 457 | } |
| 458 | |
| 459 | PyObject *gccipher_pywrap(gccipher *cc) |
| 460 | { |
| 461 | gccipher_pyobj *g = newtype(gccipher_pytype, 0, cc->name); |
| 462 | g->cc = cc; |
| 463 | g->ty.ht_type.tp_basicsize = sizeof(gcipher_pyobj); |
| 464 | g->ty.ht_type.tp_base = gcipher_pytype; |
| 465 | Py_INCREF(gcipher_pytype); |
| 466 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
| 467 | Py_TPFLAGS_BASETYPE | |
| 468 | Py_TPFLAGS_HEAPTYPE); |
| 469 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; |
| 470 | g->ty.ht_type.tp_free = 0; |
| 471 | g->ty.ht_type.tp_new = gcipher_pynew; |
| 472 | PyType_Ready(&g->ty.ht_type); |
| 473 | return ((PyObject *)g); |
| 474 | } |
| 475 | |
| 476 | static void gcipher_pydealloc(PyObject *me) |
| 477 | { |
| 478 | if (GCIPHER_F(me) & f_freeme) |
| 479 | GC_DESTROY(GCIPHER_C(me)); |
| 480 | Py_DECREF(me->ob_type); |
| 481 | FREEOBJ(me); |
| 482 | } |
| 483 | |
| 484 | static PyObject *gccget_name(PyObject *me, void *hunoz) |
| 485 | { return (PyString_FromString(GCCIPHER_CC(me)->name)); } |
| 486 | |
| 487 | static PyObject *gccget_keysz(PyObject *me, void *hunoz) |
| 488 | { return (keysz_pywrap(GCCIPHER_CC(me)->keysz)); } |
| 489 | |
| 490 | static PyObject *gccget_blksz(PyObject *me, void *hunoz) |
| 491 | { return (PyInt_FromLong(GCCIPHER_CC(me)->blksz)); } |
| 492 | |
| 493 | static PyObject *gcmeth_encrypt(PyObject *me, PyObject *arg) |
| 494 | { |
| 495 | char *p; |
| 496 | int sz; |
| 497 | PyObject *rc = 0; |
| 498 | |
| 499 | if (!PyArg_ParseTuple(arg, "s#:encrypt", &p, &sz)) return (0); |
| 500 | rc = bytestring_pywrap(0, sz); |
| 501 | GC_ENCRYPT(GCIPHER_C(me), p, PyString_AS_STRING(rc), sz); |
| 502 | return (rc); |
| 503 | } |
| 504 | |
| 505 | static PyObject *gcmeth_enczero(PyObject *me, PyObject *arg) |
| 506 | { |
| 507 | char *p; |
| 508 | int sz; |
| 509 | PyObject *rc = 0; |
| 510 | |
| 511 | if (!PyArg_ParseTuple(arg, "i:enczero", &sz)) return (0); |
| 512 | rc = bytestring_pywrap(0, sz); |
| 513 | p = PyString_AS_STRING(rc); |
| 514 | memset(p, 0, sz); |
| 515 | GC_ENCRYPT(GCIPHER_C(me), p, p, sz); |
| 516 | return (rc); |
| 517 | } |
| 518 | |
| 519 | static PyObject *gcmeth_decrypt(PyObject *me, PyObject *arg) |
| 520 | { |
| 521 | char *p; |
| 522 | int sz; |
| 523 | PyObject *rc = 0; |
| 524 | |
| 525 | if (!PyArg_ParseTuple(arg, "s#:decrypt", &p, &sz)) return (0); |
| 526 | rc = bytestring_pywrap(0, sz); |
| 527 | GC_DECRYPT(GCIPHER_C(me), p, PyString_AS_STRING(rc), sz); |
| 528 | return (rc); |
| 529 | } |
| 530 | |
| 531 | static PyObject *gcmeth_deczero(PyObject *me, PyObject *arg) |
| 532 | { |
| 533 | char *p; |
| 534 | int sz; |
| 535 | PyObject *rc = 0; |
| 536 | |
| 537 | if (!PyArg_ParseTuple(arg, "i:deczero", &sz)) return (0); |
| 538 | rc = bytestring_pywrap(0, sz); |
| 539 | p = PyString_AS_STRING(rc); |
| 540 | memset(p, 0, sz); |
| 541 | GC_DECRYPT(GCIPHER_C(me), p, p, sz); |
| 542 | return (rc); |
| 543 | } |
| 544 | |
| 545 | static PyObject *gcmeth_setiv(PyObject *me, PyObject *arg) |
| 546 | { |
| 547 | char *p; |
| 548 | int sz; |
| 549 | |
| 550 | if (!PyArg_ParseTuple(arg, "s#:setiv", &p, &sz)) goto end; |
| 551 | if (!GC_CLASS(GCIPHER_C(me))->blksz) VALERR("not a block cipher mode"); |
| 552 | if (sz != GC_CLASS(GCIPHER_C(me))->blksz) VALERR("bad IV length"); |
| 553 | GC_SETIV(GCIPHER_C(me), p); |
| 554 | RETURN_ME; |
| 555 | end: |
| 556 | return (0); |
| 557 | } |
| 558 | |
| 559 | static PyObject *gcmeth_bdry(PyObject *me, PyObject *arg) |
| 560 | { |
| 561 | if (!PyArg_ParseTuple(arg, ":bdry")) goto end; |
| 562 | if (!GC_CLASS(GCIPHER_C(me))->blksz) VALERR("not a block cipher mode"); |
| 563 | GC_BDRY(GCIPHER_C(me)); |
| 564 | RETURN_ME; |
| 565 | end: |
| 566 | return (0); |
| 567 | } |
| 568 | |
| 569 | static PyGetSetDef gccipher_pygetset[] = { |
| 570 | #define GETSETNAME(op, name) gcc##op##_##name |
| 571 | GET (keysz, "CC.keysz -> acceptable key sizes") |
| 572 | GET (blksz, "CC.blksz -> block size, or zero") |
| 573 | GET (name, "CC.name -> name of this kind of cipher") |
| 574 | #undef GETSETNAME |
| 575 | { 0 } |
| 576 | }; |
| 577 | |
| 578 | static PyMethodDef gcipher_pymethods[] = { |
| 579 | #define METHNAME(name) gcmeth_##name |
| 580 | METH (encrypt, "C.encrypt(PT) -> CT") |
| 581 | METH (enczero, "C.enczero(N) -> CT") |
| 582 | METH (decrypt, "C.decrypt(CT) -> PT") |
| 583 | METH (deczero, "C.deczero(N) -> PT") |
| 584 | METH (setiv, "C.setiv(IV)") |
| 585 | METH (bdry, "C.bdry()") |
| 586 | #undef METHNAME |
| 587 | { 0 } |
| 588 | }; |
| 589 | |
| 590 | static PyTypeObject gccipher_pytype_skel = { |
| 591 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 592 | "catacomb.GCCipher", /* @tp_name@ */ |
| 593 | sizeof(gccipher_pyobj), /* @tp_basicsize@ */ |
| 594 | 0, /* @tp_itemsize@ */ |
| 595 | |
| 596 | 0, /* @tp_dealloc@ */ |
| 597 | 0, /* @tp_print@ */ |
| 598 | 0, /* @tp_getattr@ */ |
| 599 | 0, /* @tp_setattr@ */ |
| 600 | 0, /* @tp_compare@ */ |
| 601 | 0, /* @tp_repr@ */ |
| 602 | 0, /* @tp_as_number@ */ |
| 603 | 0, /* @tp_as_sequence@ */ |
| 604 | 0, /* @tp_as_mapping@ */ |
| 605 | 0, /* @tp_hash@ */ |
| 606 | 0, /* @tp_call@ */ |
| 607 | 0, /* @tp_str@ */ |
| 608 | 0, /* @tp_getattro@ */ |
| 609 | 0, /* @tp_setattro@ */ |
| 610 | 0, /* @tp_as_buffer@ */ |
| 611 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 612 | Py_TPFLAGS_BASETYPE, |
| 613 | |
| 614 | /* @tp_doc@ */ |
| 615 | "Symmetric cipher metaclass.", |
| 616 | |
| 617 | 0, /* @tp_traverse@ */ |
| 618 | 0, /* @tp_clear@ */ |
| 619 | 0, /* @tp_richcompare@ */ |
| 620 | 0, /* @tp_weaklistoffset@ */ |
| 621 | 0, /* @tp_iter@ */ |
| 622 | 0, /* @tp_iternext@ */ |
| 623 | 0, /* @tp_methods@ */ |
| 624 | 0, /* @tp_members@ */ |
| 625 | gccipher_pygetset, /* @tp_getset@ */ |
| 626 | 0, /* @tp_base@ */ |
| 627 | 0, /* @tp_dict@ */ |
| 628 | 0, /* @tp_descr_get@ */ |
| 629 | 0, /* @tp_descr_set@ */ |
| 630 | 0, /* @tp_dictoffset@ */ |
| 631 | 0, /* @tp_init@ */ |
| 632 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 633 | abstract_pynew, /* @tp_new@ */ |
| 634 | 0, /* @tp_free@ */ |
| 635 | 0 /* @tp_is_gc@ */ |
| 636 | }; |
| 637 | |
| 638 | static PyTypeObject gcipher_pytype_skel = { |
| 639 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 640 | "catacomb.GCipher", /* @tp_name@ */ |
| 641 | sizeof(gcipher_pyobj), /* @tp_basicsize@ */ |
| 642 | 0, /* @tp_itemsize@ */ |
| 643 | |
| 644 | gcipher_pydealloc, /* @tp_dealloc@ */ |
| 645 | 0, /* @tp_print@ */ |
| 646 | 0, /* @tp_getattr@ */ |
| 647 | 0, /* @tp_setattr@ */ |
| 648 | 0, /* @tp_compare@ */ |
| 649 | 0, /* @tp_repr@ */ |
| 650 | 0, /* @tp_as_number@ */ |
| 651 | 0, /* @tp_as_sequence@ */ |
| 652 | 0, /* @tp_as_mapping@ */ |
| 653 | 0, /* @tp_hash@ */ |
| 654 | 0, /* @tp_call@ */ |
| 655 | 0, /* @tp_str@ */ |
| 656 | 0, /* @tp_getattro@ */ |
| 657 | 0, /* @tp_setattro@ */ |
| 658 | 0, /* @tp_as_buffer@ */ |
| 659 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 660 | Py_TPFLAGS_BASETYPE, |
| 661 | |
| 662 | /* @tp_doc@ */ |
| 663 | "Symmetric cipher, abstract base class.", |
| 664 | |
| 665 | 0, /* @tp_traverse@ */ |
| 666 | 0, /* @tp_clear@ */ |
| 667 | 0, /* @tp_richcompare@ */ |
| 668 | 0, /* @tp_weaklistoffset@ */ |
| 669 | 0, /* @tp_iter@ */ |
| 670 | 0, /* @tp_iternext@ */ |
| 671 | gcipher_pymethods, /* @tp_methods@ */ |
| 672 | 0, /* @tp_members@ */ |
| 673 | 0, /* @tp_getset@ */ |
| 674 | 0, /* @tp_base@ */ |
| 675 | 0, /* @tp_dict@ */ |
| 676 | 0, /* @tp_descr_get@ */ |
| 677 | 0, /* @tp_descr_set@ */ |
| 678 | 0, /* @tp_dictoffset@ */ |
| 679 | 0, /* @tp_init@ */ |
| 680 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 681 | abstract_pynew, /* @tp_new@ */ |
| 682 | 0, /* @tp_free@ */ |
| 683 | 0 /* @tp_is_gc@ */ |
| 684 | }; |
| 685 | |
| 686 | /*----- Hash functions ----------------------------------------------------*/ |
| 687 | |
| 688 | PyTypeObject *gchash_pytype, *ghash_pytype; |
| 689 | |
| 690 | CONVFUNC(gchash, gchash *, GCHASH_CH) |
| 691 | CONVFUNC(ghash, ghash *, GHASH_H) |
| 692 | |
| 693 | static PyObject *ghash_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 694 | { |
| 695 | char *kwlist[] = { 0 }; |
| 696 | if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", kwlist)) |
| 697 | goto end; |
| 698 | return (ghash_pywrap((PyObject *)ty, GH_INIT(GCHASH_CH(ty)), f_freeme)); |
| 699 | end: |
| 700 | return (0); |
| 701 | } |
| 702 | |
| 703 | PyObject *gchash_pywrap(gchash *ch) |
| 704 | { |
| 705 | gchash_pyobj *g = newtype(gchash_pytype, 0, ch->name); |
| 706 | g->ch = ch; |
| 707 | g->ty.ht_type.tp_basicsize = sizeof(ghash_pyobj); |
| 708 | g->ty.ht_type.tp_base = ghash_pytype; |
| 709 | Py_INCREF(ghash_pytype); |
| 710 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
| 711 | Py_TPFLAGS_BASETYPE | |
| 712 | Py_TPFLAGS_HEAPTYPE); |
| 713 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; |
| 714 | g->ty.ht_type.tp_free = 0; |
| 715 | g->ty.ht_type.tp_new = ghash_pynew; |
| 716 | PyType_Ready(&g->ty.ht_type); |
| 717 | return ((PyObject *)g); |
| 718 | } |
| 719 | |
| 720 | PyObject *ghash_pywrap(PyObject *cobj, ghash *h, unsigned f) |
| 721 | { |
| 722 | ghash_pyobj *g; |
| 723 | if (!cobj) cobj = gchash_pywrap((/*unconst*/ gchash *)GH_CLASS(h)); |
| 724 | else Py_INCREF(cobj); |
| 725 | g = PyObject_NEW(ghash_pyobj, (PyTypeObject *)cobj); |
| 726 | g->h = h; |
| 727 | g->f = f; |
| 728 | return ((PyObject *)g); |
| 729 | } |
| 730 | |
| 731 | static void ghash_pydealloc(PyObject *me) |
| 732 | { |
| 733 | if (GHASH_F(me) & f_freeme) |
| 734 | GH_DESTROY(GHASH_H(me)); |
| 735 | Py_DECREF(me->ob_type); |
| 736 | FREEOBJ(me); |
| 737 | } |
| 738 | |
| 739 | static PyObject *gchget_name(PyObject *me, void *hunoz) |
| 740 | { return (PyString_FromString(GCHASH_CH(me)->name)); } |
| 741 | |
| 742 | static PyObject *gchget_hashsz(PyObject *me, void *hunoz) |
| 743 | { return (PyInt_FromLong(GCHASH_CH(me)->hashsz)); } |
| 744 | |
| 745 | static PyObject *gchget_bufsz(PyObject *me, void *hunoz) |
| 746 | { return (PyInt_FromLong(GCHASH_CH(me)->bufsz)); } |
| 747 | |
| 748 | static PyObject *ghmeth_hash(PyObject *me, PyObject *arg) |
| 749 | { |
| 750 | char *p; |
| 751 | int sz; |
| 752 | if (!PyArg_ParseTuple(arg, "s#:hash", &p, &sz)) return (0); |
| 753 | GH_HASH(GHASH_H(me), p, sz); |
| 754 | RETURN_ME; |
| 755 | } |
| 756 | |
| 757 | static PyObject *ghmeth_done(PyObject *me, PyObject *arg) |
| 758 | { |
| 759 | ghash *g; |
| 760 | PyObject *rc; |
| 761 | if (!PyArg_ParseTuple(arg, ":done")) return (0); |
| 762 | g = GH_COPY(GHASH_H(me)); |
| 763 | rc = bytestring_pywrap(0, g->ops->c->hashsz); |
| 764 | GH_DONE(g, PyString_AS_STRING(rc)); |
| 765 | GH_DESTROY(g); |
| 766 | return (rc); |
| 767 | } |
| 768 | |
| 769 | static PyGetSetDef gchash_pygetset[] = { |
| 770 | #define GETSETNAME(op, name) gch##op##_##name |
| 771 | GET (bufsz, "CH.bufsz -> hash buffer size, or zero") |
| 772 | GET (hashsz, "CH.blksz -> hash output size") |
| 773 | GET (name, "CH.name -> name of this kind of hash") |
| 774 | #undef GETSETNAME |
| 775 | { 0 } |
| 776 | }; |
| 777 | |
| 778 | #define GHMETH_HASHU_(n, W, w) \ |
| 779 | static PyObject *ghmeth_hashu##w(PyObject *me, PyObject *arg) \ |
| 780 | { \ |
| 781 | uint##n x; \ |
| 782 | if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) goto end; \ |
| 783 | GH_HASHU##W(GHASH_H(me), x); \ |
| 784 | RETURN_ME; \ |
| 785 | end: \ |
| 786 | return (0); \ |
| 787 | } |
| 788 | DOUINTCONV(GHMETH_HASHU_) |
| 789 | |
| 790 | #define GHMETH_HASHBUF_(n, W, w) \ |
| 791 | static PyObject *ghmeth_hashbuf##w(PyObject *me, PyObject *arg) \ |
| 792 | { \ |
| 793 | char *p; \ |
| 794 | int sz; \ |
| 795 | if (!PyArg_ParseTuple(arg, "s#:hashbuf" #w, &p, &sz)) goto end; \ |
| 796 | if (sz > MASK##n) TYERR("string too long"); \ |
| 797 | GH_HASHBUF##W(GHASH_H(me), p, sz); \ |
| 798 | RETURN_ME; \ |
| 799 | end: \ |
| 800 | return (0); \ |
| 801 | } |
| 802 | DOUINTCONV(GHMETH_HASHBUF_) |
| 803 | |
| 804 | static PyObject *ghmeth_hashstrz(PyObject *me, PyObject *arg) |
| 805 | { |
| 806 | char *p; |
| 807 | if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0); |
| 808 | GH_HASHSTRZ(GHASH_H(me), p); |
| 809 | RETURN_ME; |
| 810 | } |
| 811 | |
| 812 | static PyMethodDef ghash_pymethods[] = { |
| 813 | #define METHNAME(name) ghmeth_##name |
| 814 | METH (hash, "H.hash(M)") |
| 815 | #define METHU_(n, W, w) METH(hashu##w, "H.hashu" #w "(WORD)") |
| 816 | DOUINTCONV(METHU_) |
| 817 | #define METHBUF_(n, W, w) METH(hashbuf##w, "H.hashbuf" #w "(BYTES)") |
| 818 | DOUINTCONV(METHBUF_) |
| 819 | METH (hashstrz, "H.hashstrz(STRING)") |
| 820 | METH (done, "H.done() -> HASH") |
| 821 | #undef METHNAME |
| 822 | { 0 } |
| 823 | }; |
| 824 | |
| 825 | static PyTypeObject gchash_pytype_skel = { |
| 826 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 827 | "catacomb.GCHash", /* @tp_name@ */ |
| 828 | sizeof(gchash_pyobj), /* @tp_basicsize@ */ |
| 829 | 0, /* @tp_itemsize@ */ |
| 830 | |
| 831 | 0, /* @tp_dealloc@ */ |
| 832 | 0, /* @tp_print@ */ |
| 833 | 0, /* @tp_getattr@ */ |
| 834 | 0, /* @tp_setattr@ */ |
| 835 | 0, /* @tp_compare@ */ |
| 836 | 0, /* @tp_repr@ */ |
| 837 | 0, /* @tp_as_number@ */ |
| 838 | 0, /* @tp_as_sequence@ */ |
| 839 | 0, /* @tp_as_mapping@ */ |
| 840 | 0, /* @tp_hash@ */ |
| 841 | 0, /* @tp_call@ */ |
| 842 | 0, /* @tp_str@ */ |
| 843 | 0, /* @tp_getattro@ */ |
| 844 | 0, /* @tp_setattro@ */ |
| 845 | 0, /* @tp_as_buffer@ */ |
| 846 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 847 | Py_TPFLAGS_BASETYPE, |
| 848 | |
| 849 | /* @tp_doc@ */ |
| 850 | "Hash function metaclass.", |
| 851 | |
| 852 | 0, /* @tp_traverse@ */ |
| 853 | 0, /* @tp_clear@ */ |
| 854 | 0, /* @tp_richcompare@ */ |
| 855 | 0, /* @tp_weaklistoffset@ */ |
| 856 | 0, /* @tp_iter@ */ |
| 857 | 0, /* @tp_iternext@ */ |
| 858 | 0, /* @tp_methods@ */ |
| 859 | 0, /* @tp_members@ */ |
| 860 | gchash_pygetset, /* @tp_getset@ */ |
| 861 | 0, /* @tp_base@ */ |
| 862 | 0, /* @tp_dict@ */ |
| 863 | 0, /* @tp_descr_get@ */ |
| 864 | 0, /* @tp_descr_set@ */ |
| 865 | 0, /* @tp_dictoffset@ */ |
| 866 | 0, /* @tp_init@ */ |
| 867 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 868 | abstract_pynew, /* @tp_new@ */ |
| 869 | 0, /* @tp_free@ */ |
| 870 | 0 /* @tp_is_gc@ */ |
| 871 | }; |
| 872 | |
| 873 | static PyTypeObject ghash_pytype_skel = { |
| 874 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 875 | "catacomb.GHash", /* @tp_name@ */ |
| 876 | sizeof(ghash_pyobj), /* @tp_basicsize@ */ |
| 877 | 0, /* @tp_itemsize@ */ |
| 878 | |
| 879 | ghash_pydealloc, /* @tp_dealloc@ */ |
| 880 | 0, /* @tp_print@ */ |
| 881 | 0, /* @tp_getattr@ */ |
| 882 | 0, /* @tp_setattr@ */ |
| 883 | 0, /* @tp_compare@ */ |
| 884 | 0, /* @tp_repr@ */ |
| 885 | 0, /* @tp_as_number@ */ |
| 886 | 0, /* @tp_as_sequence@ */ |
| 887 | 0, /* @tp_as_mapping@ */ |
| 888 | 0, /* @tp_hash@ */ |
| 889 | 0, /* @tp_call@ */ |
| 890 | 0, /* @tp_str@ */ |
| 891 | 0, /* @tp_getattro@ */ |
| 892 | 0, /* @tp_setattro@ */ |
| 893 | 0, /* @tp_as_buffer@ */ |
| 894 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 895 | Py_TPFLAGS_BASETYPE, |
| 896 | |
| 897 | /* @tp_doc@ */ |
| 898 | "Hash function, abstract base class.", |
| 899 | |
| 900 | 0, /* @tp_traverse@ */ |
| 901 | 0, /* @tp_clear@ */ |
| 902 | 0, /* @tp_richcompare@ */ |
| 903 | 0, /* @tp_weaklistoffset@ */ |
| 904 | 0, /* @tp_iter@ */ |
| 905 | 0, /* @tp_iternext@ */ |
| 906 | ghash_pymethods, /* @tp_methods@ */ |
| 907 | 0, /* @tp_members@ */ |
| 908 | 0, /* @tp_getset@ */ |
| 909 | 0, /* @tp_base@ */ |
| 910 | 0, /* @tp_dict@ */ |
| 911 | 0, /* @tp_descr_get@ */ |
| 912 | 0, /* @tp_descr_set@ */ |
| 913 | 0, /* @tp_dictoffset@ */ |
| 914 | 0, /* @tp_init@ */ |
| 915 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 916 | abstract_pynew, /* @tp_new@ */ |
| 917 | 0, /* @tp_free@ */ |
| 918 | 0 /* @tp_is_gc@ */ |
| 919 | }; |
| 920 | |
| 921 | /*----- Message authentication --------------------------------------------*/ |
| 922 | |
| 923 | PyTypeObject *gcmac_pytype, *gmac_pytype, *gmhash_pytype; |
| 924 | |
| 925 | CONVFUNC(gcmac, gcmac *, GCMAC_CM) |
| 926 | CONVFUNC(gmac, gmac *, GMAC_M) |
| 927 | CONVFUNC(gmhash, ghash *, GHASH_H) |
| 928 | |
| 929 | static PyObject *gmac_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 930 | { |
| 931 | char *kwlist[] = { "k", 0 }; |
| 932 | char *k; |
| 933 | int sz; |
| 934 | |
| 935 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &sz)) |
| 936 | goto end; |
| 937 | if (keysz(sz, GCMAC_CM(ty)->keysz) != sz) VALERR("bad key length"); |
| 938 | return (gmac_pywrap((PyObject *)ty, |
| 939 | GM_KEY(GCMAC_CM(ty), k, sz), |
| 940 | f_freeme)); |
| 941 | end: |
| 942 | return (0); |
| 943 | } |
| 944 | |
| 945 | static PyObject *gmhash_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 946 | { |
| 947 | char *kwlist[] = { 0 }; |
| 948 | ghash_pyobj *g; |
| 949 | |
| 950 | if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", kwlist)) return (0); |
| 951 | g = PyObject_NEW(ghash_pyobj, ty); |
| 952 | g->h = GM_INIT(GMAC_M(ty)); |
| 953 | g->f = f_freeme; |
| 954 | Py_INCREF(ty); |
| 955 | return ((PyObject *)g); |
| 956 | } |
| 957 | |
| 958 | PyObject *gcmac_pywrap(gcmac *cm) |
| 959 | { |
| 960 | gcmac_pyobj *g = newtype(gcmac_pytype, 0, cm->name); |
| 961 | g->cm = cm; |
| 962 | g->ty.ht_type.tp_basicsize = sizeof(gmac_pyobj); |
| 963 | g->ty.ht_type.tp_base = gmac_pytype; |
| 964 | Py_INCREF(gmac_pytype); |
| 965 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
| 966 | Py_TPFLAGS_BASETYPE | |
| 967 | Py_TPFLAGS_HEAPTYPE); |
| 968 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; |
| 969 | g->ty.ht_type.tp_free = 0; |
| 970 | g->ty.ht_type.tp_new = gmac_pynew; |
| 971 | PyType_Ready(&g->ty.ht_type); |
| 972 | return ((PyObject *)g); |
| 973 | } |
| 974 | |
| 975 | PyObject *gmac_pywrap(PyObject *cobj, gmac *m, unsigned f) |
| 976 | { |
| 977 | gmac_pyobj *g; |
| 978 | if (!cobj) cobj = gcmac_pywrap((/*unconst*/ gcmac *)GM_CLASS(m)); |
| 979 | else Py_INCREF(cobj); |
| 980 | g = newtype((PyTypeObject *)cobj, 0, 0); |
| 981 | g->ty.ht_name = PyString_FromFormat("%s(keyed)", m->ops->c->name); |
| 982 | g->ty.ht_type.tp_name = PyString_AS_STRING(g->ty.ht_name); |
| 983 | g->ty.ht_type.tp_base = gmhash_pytype; |
| 984 | Py_INCREF(gmac_pytype); |
| 985 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
| 986 | Py_TPFLAGS_BASETYPE | |
| 987 | Py_TPFLAGS_HEAPTYPE); |
| 988 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; |
| 989 | g->ty.ht_type.tp_free = 0; |
| 990 | g->ty.ht_type.tp_new = gmhash_pynew; |
| 991 | PyType_Ready(&g->ty.ht_type); |
| 992 | g->m = m; |
| 993 | g->f = f; |
| 994 | return ((PyObject *)g); |
| 995 | } |
| 996 | |
| 997 | static void gmac_pydealloc(PyObject *me) |
| 998 | { |
| 999 | if (GMAC_F(me) & f_freeme) |
| 1000 | GM_DESTROY(GMAC_M(me)); |
| 1001 | Py_DECREF(me->ob_type); |
| 1002 | PyType_Type.tp_dealloc(me); |
| 1003 | } |
| 1004 | |
| 1005 | static PyObject *gcmget_name(PyObject *me, void *hunoz) |
| 1006 | { return (PyString_FromString(GCMAC_CM(me)->name)); } |
| 1007 | |
| 1008 | static PyObject *gcmget_keysz(PyObject *me, void *hunoz) |
| 1009 | { return (keysz_pywrap(GCMAC_CM(me)->keysz)); } |
| 1010 | |
| 1011 | static PyObject *gcmget_tagsz(PyObject *me, void *hunoz) |
| 1012 | { return (PyInt_FromLong(GCMAC_CM(me)->hashsz)); } |
| 1013 | |
| 1014 | static PyGetSetDef gcmac_pygetset[] = { |
| 1015 | #define GETSETNAME(op, name) gcm##op##_##name |
| 1016 | GET (keysz, "CM.keysz -> acceptable key sizes") |
| 1017 | GET (tagsz, "CM.tagsz -> MAC output size") |
| 1018 | GET (name, "CM.name -> name of this kind of MAC") |
| 1019 | #undef GETSETNAME |
| 1020 | { 0 } |
| 1021 | }; |
| 1022 | |
| 1023 | static PyTypeObject gcmac_pytype_skel = { |
| 1024 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 1025 | "catacomb.GCMAC", /* @tp_name@ */ |
| 1026 | sizeof(gchash_pyobj), /* @tp_basicsize@ */ |
| 1027 | 0, /* @tp_itemsize@ */ |
| 1028 | |
| 1029 | 0, /* @tp_dealloc@ */ |
| 1030 | 0, /* @tp_print@ */ |
| 1031 | 0, /* @tp_getattr@ */ |
| 1032 | 0, /* @tp_setattr@ */ |
| 1033 | 0, /* @tp_compare@ */ |
| 1034 | 0, /* @tp_repr@ */ |
| 1035 | 0, /* @tp_as_number@ */ |
| 1036 | 0, /* @tp_as_sequence@ */ |
| 1037 | 0, /* @tp_as_mapping@ */ |
| 1038 | 0, /* @tp_hash@ */ |
| 1039 | 0, /* @tp_call@ */ |
| 1040 | 0, /* @tp_str@ */ |
| 1041 | 0, /* @tp_getattro@ */ |
| 1042 | 0, /* @tp_setattro@ */ |
| 1043 | 0, /* @tp_as_buffer@ */ |
| 1044 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 1045 | Py_TPFLAGS_BASETYPE, |
| 1046 | |
| 1047 | /* @tp_doc@ */ |
| 1048 | "Message authentication code metametaclass.", |
| 1049 | |
| 1050 | 0, /* @tp_traverse@ */ |
| 1051 | 0, /* @tp_clear@ */ |
| 1052 | 0, /* @tp_richcompare@ */ |
| 1053 | 0, /* @tp_weaklistoffset@ */ |
| 1054 | 0, /* @tp_iter@ */ |
| 1055 | 0, /* @tp_iternext@ */ |
| 1056 | 0, /* @tp_methods@ */ |
| 1057 | 0, /* @tp_members@ */ |
| 1058 | gcmac_pygetset, /* @tp_getset@ */ |
| 1059 | 0, /* @tp_base@ */ |
| 1060 | 0, /* @tp_dict@ */ |
| 1061 | 0, /* @tp_descr_get@ */ |
| 1062 | 0, /* @tp_descr_set@ */ |
| 1063 | 0, /* @tp_dictoffset@ */ |
| 1064 | 0, /* @tp_init@ */ |
| 1065 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1066 | abstract_pynew, /* @tp_new@ */ |
| 1067 | 0, /* @tp_free@ */ |
| 1068 | 0 /* @tp_is_gc@ */ |
| 1069 | }; |
| 1070 | |
| 1071 | static PyTypeObject gmac_pytype_skel = { |
| 1072 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 1073 | "catacomb.GMAC", /* @tp_name@ */ |
| 1074 | sizeof(gmac_pyobj), /* @tp_basicsize@ */ |
| 1075 | 0, /* @tp_itemsize@ */ |
| 1076 | |
| 1077 | gmac_pydealloc, /* @tp_dealloc@ */ |
| 1078 | 0, /* @tp_print@ */ |
| 1079 | 0, /* @tp_getattr@ */ |
| 1080 | 0, /* @tp_setattr@ */ |
| 1081 | 0, /* @tp_compare@ */ |
| 1082 | 0, /* @tp_repr@ */ |
| 1083 | 0, /* @tp_as_number@ */ |
| 1084 | 0, /* @tp_as_sequence@ */ |
| 1085 | 0, /* @tp_as_mapping@ */ |
| 1086 | 0, /* @tp_hash@ */ |
| 1087 | 0, /* @tp_call@ */ |
| 1088 | 0, /* @tp_str@ */ |
| 1089 | 0, /* @tp_getattro@ */ |
| 1090 | 0, /* @tp_setattro@ */ |
| 1091 | 0, /* @tp_as_buffer@ */ |
| 1092 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 1093 | Py_TPFLAGS_BASETYPE, |
| 1094 | |
| 1095 | /* @tp_doc@ */ |
| 1096 | "Message authentication code metaclass, abstract base class.", |
| 1097 | |
| 1098 | 0, /* @tp_traverse@ */ |
| 1099 | 0, /* @tp_clear@ */ |
| 1100 | 0, /* @tp_richcompare@ */ |
| 1101 | 0, /* @tp_weaklistoffset@ */ |
| 1102 | 0, /* @tp_iter@ */ |
| 1103 | 0, /* @tp_iternext@ */ |
| 1104 | 0, /* @tp_methods@ */ |
| 1105 | 0, /* @tp_members@ */ |
| 1106 | 0, /* @tp_getset@ */ |
| 1107 | 0, /* @tp_base@ */ |
| 1108 | 0, /* @tp_dict@ */ |
| 1109 | 0, /* @tp_descr_get@ */ |
| 1110 | 0, /* @tp_descr_set@ */ |
| 1111 | 0, /* @tp_dictoffset@ */ |
| 1112 | 0, /* @tp_init@ */ |
| 1113 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1114 | abstract_pynew, /* @tp_new@ */ |
| 1115 | 0, /* @tp_free@ */ |
| 1116 | 0 /* @tp_is_gc@ */ |
| 1117 | }; |
| 1118 | |
| 1119 | static PyTypeObject gmhash_pytype_skel = { |
| 1120 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 1121 | "catacomb.GMACHash", /* @tp_name@ */ |
| 1122 | sizeof(ghash_pyobj), /* @tp_basicsize@ */ |
| 1123 | 0, /* @tp_itemsize@ */ |
| 1124 | |
| 1125 | ghash_pydealloc, /* @tp_dealloc@ */ |
| 1126 | 0, /* @tp_print@ */ |
| 1127 | 0, /* @tp_getattr@ */ |
| 1128 | 0, /* @tp_setattr@ */ |
| 1129 | 0, /* @tp_compare@ */ |
| 1130 | 0, /* @tp_repr@ */ |
| 1131 | 0, /* @tp_as_number@ */ |
| 1132 | 0, /* @tp_as_sequence@ */ |
| 1133 | 0, /* @tp_as_mapping@ */ |
| 1134 | 0, /* @tp_hash@ */ |
| 1135 | 0, /* @tp_call@ */ |
| 1136 | 0, /* @tp_str@ */ |
| 1137 | 0, /* @tp_getattro@ */ |
| 1138 | 0, /* @tp_setattro@ */ |
| 1139 | 0, /* @tp_as_buffer@ */ |
| 1140 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 1141 | Py_TPFLAGS_BASETYPE, |
| 1142 | |
| 1143 | /* @tp_doc@ */ |
| 1144 | "Message authentication code, abstract base class.", |
| 1145 | |
| 1146 | 0, /* @tp_traverse@ */ |
| 1147 | 0, /* @tp_clear@ */ |
| 1148 | 0, /* @tp_richcompare@ */ |
| 1149 | 0, /* @tp_weaklistoffset@ */ |
| 1150 | 0, /* @tp_iter@ */ |
| 1151 | 0, /* @tp_iternext@ */ |
| 1152 | 0, /* @tp_methods@ */ |
| 1153 | 0, /* @tp_members@ */ |
| 1154 | 0, /* @tp_getset@ */ |
| 1155 | 0, /* @tp_base@ */ |
| 1156 | 0, /* @tp_dict@ */ |
| 1157 | 0, /* @tp_descr_get@ */ |
| 1158 | 0, /* @tp_descr_set@ */ |
| 1159 | 0, /* @tp_dictoffset@ */ |
| 1160 | 0, /* @tp_init@ */ |
| 1161 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1162 | abstract_pynew, /* @tp_new@ */ |
| 1163 | 0, /* @tp_free@ */ |
| 1164 | 0 /* @tp_is_gc@ */ |
| 1165 | }; |
| 1166 | |
| 1167 | /*----- Pseudorandom permutations -----------------------------------------*/ |
| 1168 | |
| 1169 | static PyTypeObject *gcprp_pytype, *gprp_pytype; |
| 1170 | |
| 1171 | typedef struct prpinfo { |
| 1172 | const char *name; |
| 1173 | const octet *keysz; |
| 1174 | size_t ctxsz; |
| 1175 | size_t blksz; |
| 1176 | void (*init)(void *, const void *, size_t); |
| 1177 | void (*eblk)(void *, const void *, void *); |
| 1178 | void (*dblk)(void *, const void *, void *); |
| 1179 | } prpinfo; |
| 1180 | |
| 1181 | #define PRP_DEF(PRE, pre) \ |
| 1182 | static void pre##_prpinit(void *ctx, const void *k, size_t ksz) \ |
| 1183 | { pre##_init(ctx, k, ksz); } \ |
| 1184 | static void pre##_prpeblk(void *ctx, const void *in, void *out) \ |
| 1185 | { \ |
| 1186 | uint32 w[PRE##_BLKSZ/4]; BLKC_LOAD(PRE, w, in); \ |
| 1187 | pre##_eblk(ctx, w, w); BLKC_STORE(PRE, out, w); \ |
| 1188 | } \ |
| 1189 | static void pre##_prpdblk(void *ctx, const void *in, void *out) \ |
| 1190 | { \ |
| 1191 | uint32 w[PRE##_BLKSZ/4]; BLKC_LOAD(PRE, w, in); \ |
| 1192 | pre##_dblk(ctx, w, w); BLKC_STORE(PRE, out, w); \ |
| 1193 | } \ |
| 1194 | static const prpinfo pre##_prpinfo = { \ |
| 1195 | #pre, pre##_keysz, sizeof(pre##_ctx), PRE##_BLKSZ, \ |
| 1196 | pre##_prpinit, pre##_prpeblk, pre##_prpdblk \ |
| 1197 | }; |
| 1198 | PRPS(PRP_DEF) |
| 1199 | |
| 1200 | static const struct prpinfo *const gprptab[] = { |
| 1201 | #define PRP_ENTRY(PRE, pre) &pre##_prpinfo, |
| 1202 | PRPS(PRP_ENTRY) |
| 1203 | 0 |
| 1204 | }; |
| 1205 | |
| 1206 | typedef struct gcprp_pyobj { |
| 1207 | PyHeapTypeObject ty; |
| 1208 | const prpinfo *prp; |
| 1209 | } gcprp_pyobj; |
| 1210 | #define GCPRP_PRP(o) (((gcprp_pyobj *)(o))->prp) |
| 1211 | |
| 1212 | typedef struct gprp_pyobj { |
| 1213 | PyObject_HEAD |
| 1214 | const prpinfo *prp; |
| 1215 | } gprp_pyobj; |
| 1216 | #define GPRP_PRP(o) (((gprp_pyobj *)(o))->prp) |
| 1217 | #define GPRP_CTX(o) (((gprp_pyobj *)(o)) + 1) |
| 1218 | |
| 1219 | typedef struct prp { |
| 1220 | const prpinfo *prp; |
| 1221 | void *ctx; |
| 1222 | } prp; |
| 1223 | |
| 1224 | static PyObject *gprp_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
| 1225 | { |
| 1226 | char *kwlist[] = { "key", 0 }; |
| 1227 | char *k; |
| 1228 | int sz; |
| 1229 | const prpinfo *prp = GCPRP_PRP(ty); |
| 1230 | PyObject *me; |
| 1231 | |
| 1232 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &sz)) |
| 1233 | goto end; |
| 1234 | if (keysz(sz, prp->keysz) != sz) VALERR("bad key length"); |
| 1235 | me = (PyObject *)ty->tp_alloc(ty, 0); |
| 1236 | GPRP_PRP(me) = prp; |
| 1237 | prp->init(GPRP_CTX(me), k, sz); |
| 1238 | Py_INCREF(me); |
| 1239 | return (me); |
| 1240 | end: |
| 1241 | return (0); |
| 1242 | } |
| 1243 | |
| 1244 | static void gprp_pydealloc(PyObject *me) |
| 1245 | { Py_DECREF(me->ob_type); FREEOBJ(me); } |
| 1246 | |
| 1247 | static PyObject *gcprp_pywrap(const prpinfo *prp) |
| 1248 | { |
| 1249 | gcprp_pyobj *g = newtype(gcprp_pytype, 0, prp->name); |
| 1250 | g->prp = prp; |
| 1251 | g->ty.ht_type.tp_basicsize = sizeof(gprp_pyobj) + prp->ctxsz; |
| 1252 | g->ty.ht_type.tp_base = gprp_pytype; |
| 1253 | Py_INCREF(gprp_pytype); |
| 1254 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
| 1255 | Py_TPFLAGS_BASETYPE | |
| 1256 | Py_TPFLAGS_HEAPTYPE); |
| 1257 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; |
| 1258 | g->ty.ht_type.tp_free = 0; |
| 1259 | g->ty.ht_type.tp_new = gprp_pynew; |
| 1260 | PyType_Ready(&g->ty.ht_type); |
| 1261 | return ((PyObject *)g); |
| 1262 | } |
| 1263 | |
| 1264 | static PyObject *gcpget_name(PyObject *me, void *hunoz) |
| 1265 | { return (PyString_FromString(GCPRP_PRP(me)->name)); } |
| 1266 | static PyObject *gcpget_keysz(PyObject *me, void *hunoz) |
| 1267 | { return (keysz_pywrap(GCPRP_PRP(me)->keysz)); } |
| 1268 | static PyObject *gcpget_blksz(PyObject *me, void *hunoz) |
| 1269 | { return (PyInt_FromLong(GCPRP_PRP(me)->blksz)); } |
| 1270 | |
| 1271 | static PyObject *gpmeth_encrypt(PyObject *me, PyObject *arg) |
| 1272 | { |
| 1273 | char *p; |
| 1274 | int n; |
| 1275 | PyObject *rc = 0; |
| 1276 | |
| 1277 | if (!PyArg_ParseTuple(arg, "s#:encrypt", &p, &n)) goto end; |
| 1278 | if (n != GPRP_PRP(me)->blksz) VALERR("incorrect block length"); |
| 1279 | rc = bytestring_pywrap(0, n); |
| 1280 | GPRP_PRP(me)->eblk(GPRP_CTX(me), p, PyString_AS_STRING(rc)); |
| 1281 | end: |
| 1282 | return (rc); |
| 1283 | } |
| 1284 | |
| 1285 | static PyObject *gpmeth_decrypt(PyObject *me, PyObject *arg) |
| 1286 | { |
| 1287 | char *p; |
| 1288 | int n; |
| 1289 | PyObject *rc = 0; |
| 1290 | |
| 1291 | if (!PyArg_ParseTuple(arg, "s#:decrypt", &p, &n)) goto end; |
| 1292 | if (n != GPRP_PRP(me)->blksz) VALERR("incorrect block length"); |
| 1293 | rc = bytestring_pywrap(0, n); |
| 1294 | GPRP_PRP(me)->dblk(GPRP_CTX(me), p, PyString_AS_STRING(rc)); |
| 1295 | end: |
| 1296 | return (rc); |
| 1297 | } |
| 1298 | |
| 1299 | static PyGetSetDef gcprp_pygetset[] = { |
| 1300 | #define GETSETNAME(op, name) gcp##op##_##name |
| 1301 | GET (keysz, "CP.keysz -> acceptable key sizes") |
| 1302 | GET (blksz, "CP.blksz -> block size") |
| 1303 | GET (name, "CP.name -> name of this kind of PRP") |
| 1304 | #undef GETSETNAME |
| 1305 | { 0 } |
| 1306 | }; |
| 1307 | |
| 1308 | static PyMethodDef gprp_pymethods[] = { |
| 1309 | #define METHNAME(name) gpmeth_##name |
| 1310 | METH (encrypt, "P.encrypt(PT) -> CT") |
| 1311 | METH (decrypt, "P.decrypt(CT) -> PT") |
| 1312 | #undef METHNAME |
| 1313 | { 0 } |
| 1314 | }; |
| 1315 | |
| 1316 | static PyTypeObject gcprp_pytype_skel = { |
| 1317 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 1318 | "catacomb.GCPRP", /* @tp_name@ */ |
| 1319 | sizeof(gcprp_pyobj), /* @tp_basicsize@ */ |
| 1320 | 0, /* @tp_itemsize@ */ |
| 1321 | |
| 1322 | 0, /* @tp_dealloc@ */ |
| 1323 | 0, /* @tp_print@ */ |
| 1324 | 0, /* @tp_getattr@ */ |
| 1325 | 0, /* @tp_setattr@ */ |
| 1326 | 0, /* @tp_compare@ */ |
| 1327 | 0, /* @tp_repr@ */ |
| 1328 | 0, /* @tp_as_number@ */ |
| 1329 | 0, /* @tp_as_sequence@ */ |
| 1330 | 0, /* @tp_as_mapping@ */ |
| 1331 | 0, /* @tp_hash@ */ |
| 1332 | 0, /* @tp_call@ */ |
| 1333 | 0, /* @tp_str@ */ |
| 1334 | 0, /* @tp_getattro@ */ |
| 1335 | 0, /* @tp_setattro@ */ |
| 1336 | 0, /* @tp_as_buffer@ */ |
| 1337 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 1338 | Py_TPFLAGS_BASETYPE, |
| 1339 | |
| 1340 | /* @tp_doc@ */ |
| 1341 | "Pseudorandom permutation metaclass.", |
| 1342 | |
| 1343 | 0, /* @tp_traverse@ */ |
| 1344 | 0, /* @tp_clear@ */ |
| 1345 | 0, /* @tp_richcompare@ */ |
| 1346 | 0, /* @tp_weaklistoffset@ */ |
| 1347 | 0, /* @tp_iter@ */ |
| 1348 | 0, /* @tp_iternext@ */ |
| 1349 | 0, /* @tp_methods@ */ |
| 1350 | 0, /* @tp_members@ */ |
| 1351 | gcprp_pygetset, /* @tp_getset@ */ |
| 1352 | 0, /* @tp_base@ */ |
| 1353 | 0, /* @tp_dict@ */ |
| 1354 | 0, /* @tp_descr_get@ */ |
| 1355 | 0, /* @tp_descr_set@ */ |
| 1356 | 0, /* @tp_dictoffset@ */ |
| 1357 | 0, /* @tp_init@ */ |
| 1358 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1359 | abstract_pynew, /* @tp_new@ */ |
| 1360 | 0, /* @tp_free@ */ |
| 1361 | 0 /* @tp_is_gc@ */ |
| 1362 | }; |
| 1363 | |
| 1364 | static PyTypeObject gprp_pytype_skel = { |
| 1365 | PyObject_HEAD_INIT(0) 0, /* Header */ |
| 1366 | "catacomb.GPRP", /* @tp_name@ */ |
| 1367 | sizeof(gprp_pyobj), /* @tp_basicsize@ */ |
| 1368 | 0, /* @tp_itemsize@ */ |
| 1369 | |
| 1370 | gprp_pydealloc, /* @tp_dealloc@ */ |
| 1371 | 0, /* @tp_print@ */ |
| 1372 | 0, /* @tp_getattr@ */ |
| 1373 | 0, /* @tp_setattr@ */ |
| 1374 | 0, /* @tp_compare@ */ |
| 1375 | 0, /* @tp_repr@ */ |
| 1376 | 0, /* @tp_as_number@ */ |
| 1377 | 0, /* @tp_as_sequence@ */ |
| 1378 | 0, /* @tp_as_mapping@ */ |
| 1379 | 0, /* @tp_hash@ */ |
| 1380 | 0, /* @tp_call@ */ |
| 1381 | 0, /* @tp_str@ */ |
| 1382 | 0, /* @tp_getattro@ */ |
| 1383 | 0, /* @tp_setattro@ */ |
| 1384 | 0, /* @tp_as_buffer@ */ |
| 1385 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
| 1386 | Py_TPFLAGS_BASETYPE, |
| 1387 | |
| 1388 | /* @tp_doc@ */ |
| 1389 | "Pseudorandom permutation, abstract base class.", |
| 1390 | |
| 1391 | 0, /* @tp_traverse@ */ |
| 1392 | 0, /* @tp_clear@ */ |
| 1393 | 0, /* @tp_richcompare@ */ |
| 1394 | 0, /* @tp_weaklistoffset@ */ |
| 1395 | 0, /* @tp_iter@ */ |
| 1396 | 0, /* @tp_iternext@ */ |
| 1397 | gprp_pymethods, /* @tp_methods@ */ |
| 1398 | 0, /* @tp_members@ */ |
| 1399 | 0, /* @tp_getset@ */ |
| 1400 | 0, /* @tp_base@ */ |
| 1401 | 0, /* @tp_dict@ */ |
| 1402 | 0, /* @tp_descr_get@ */ |
| 1403 | 0, /* @tp_descr_set@ */ |
| 1404 | 0, /* @tp_dictoffset@ */ |
| 1405 | 0, /* @tp_init@ */ |
| 1406 | PyType_GenericAlloc, /* @tp_alloc@ */ |
| 1407 | abstract_pynew, /* @tp_new@ */ |
| 1408 | 0, /* @tp_free@ */ |
| 1409 | 0 /* @tp_is_gc@ */ |
| 1410 | }; |
| 1411 | |
| 1412 | /*----- Main code ---------------------------------------------------------*/ |
| 1413 | |
| 1414 | void algorithms_pyinit(void) |
| 1415 | { |
| 1416 | INITTYPE(keysz, root); |
| 1417 | INITTYPE(keyszany, keysz); |
| 1418 | INITTYPE(keyszrange, keysz); |
| 1419 | INITTYPE(keyszset, keysz); |
| 1420 | INITTYPE(gccipher, type); |
| 1421 | INITTYPE(gcipher, root); |
| 1422 | INITTYPE(gchash, type); |
| 1423 | INITTYPE(ghash, root); |
| 1424 | INITTYPE(gcmac, type); |
| 1425 | INITTYPE(gmac, type); |
| 1426 | INITTYPE(gmhash, ghash); |
| 1427 | INITTYPE(gcprp, type); |
| 1428 | INITTYPE(gprp, root); |
| 1429 | } |
| 1430 | |
| 1431 | GEN(gcciphers, cipher) |
| 1432 | GEN(gchashes, hash) |
| 1433 | GEN(gcmacs, mac) |
| 1434 | #define gcprp prpinfo |
| 1435 | GEN(gcprps, prp) |
| 1436 | |
| 1437 | void algorithms_pyinsert(PyObject *mod) |
| 1438 | { |
| 1439 | PyObject *d; |
| 1440 | INSERT("KeySZ", keysz_pytype); |
| 1441 | INSERT("KeySZAny", keyszany_pytype); |
| 1442 | INSERT("KeySZRange", keyszrange_pytype); |
| 1443 | INSERT("KeySZSet", keyszset_pytype); |
| 1444 | INSERT("GCCipher", gccipher_pytype); |
| 1445 | INSERT("GCipher", gcipher_pytype); |
| 1446 | INSERT("gcciphers", gcciphers()); |
| 1447 | INSERT("GCHash", gchash_pytype); |
| 1448 | INSERT("GHash", ghash_pytype); |
| 1449 | INSERT("gchashes", d = gchashes()); |
| 1450 | sha_pyobj = PyDict_GetItemString(d, "sha"); Py_INCREF(sha_pyobj); |
| 1451 | has160_pyobj = PyDict_GetItemString(d, "has160"); Py_INCREF(has160_pyobj); |
| 1452 | INSERT("GCMAC", gcmac_pytype); |
| 1453 | INSERT("GMAC", gmac_pytype); |
| 1454 | INSERT("GMACHash", gmhash_pytype); |
| 1455 | INSERT("gcmacs", gcmacs()); |
| 1456 | INSERT("GCPRP", gcprp_pytype); |
| 1457 | INSERT("GPRP", gprp_pytype); |
| 1458 | INSERT("gcprps", gcprps()); |
| 1459 | } |
| 1460 | |
| 1461 | /*----- That's all, folks -------------------------------------------------*/ |