Commit | Line | Data |
---|---|---|
d7ab1bab | 1 | /* -*-c-*- |
d7ab1bab | 2 | * |
3 | * Symmetric cryptography | |
4 | * | |
5 | * (c) 2004 Straylight/Edgeware | |
6 | */ | |
7 | ||
b2687a0a | 8 | /*----- Licensing notice --------------------------------------------------* |
d7ab1bab | 9 | * |
10 | * This file is part of the Python interface to Catacomb. | |
11 | * | |
12 | * Catacomb/Python is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or | |
15 | * (at your option) any later version. | |
b2687a0a | 16 | * |
d7ab1bab | 17 | * Catacomb/Python is distributed in the hope that it will be useful, |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
b2687a0a | 21 | * |
d7ab1bab | 22 | * You should have received a copy of the GNU General Public License |
23 | * along with Catacomb/Python; if not, write to the Free Software Foundation, | |
24 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
25 | */ | |
26 | ||
27 | /*----- Header files ------------------------------------------------------*/ | |
28 | ||
29 | #include "catacomb-python.h" | |
30 | #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 | ||
cfe23cf8 MW |
38 | #ifndef KSZ_OPMASK |
39 | # define KSZ_OPMASK 0x1f | |
40 | #endif | |
41 | ||
42 | #ifndef KSZ_16BIT | |
43 | # define KSZ_16BIT 0x20 | |
44 | #endif | |
45 | ||
d7ab1bab | 46 | PyObject *keysz_pywrap(const octet *k) |
47 | { | |
cfe23cf8 MW |
48 | unsigned op = *k++; |
49 | #define ARG(i) (op&KSZ_16BIT ? LOAD16(k + 2*(i)) : k[i]) | |
50 | switch (op&KSZ_OPMASK) { | |
d7ab1bab | 51 | case KSZ_ANY: { |
52 | keysz_pyobj *o = PyObject_New(keysz_pyobj, keyszany_pytype); | |
cfe23cf8 | 53 | o->dfl = ARG(0); |
d7ab1bab | 54 | return ((PyObject *)o); |
55 | } break; | |
56 | case KSZ_RANGE: { | |
57 | keyszrange_pyobj *o = | |
b2687a0a | 58 | PyObject_New(keyszrange_pyobj, keyszrange_pytype); |
cfe23cf8 MW |
59 | o->dfl = ARG(0); |
60 | o->min = ARG(1); | |
61 | o->max = ARG(2); | |
62 | o->mod = ARG(3); | |
d7ab1bab | 63 | if (!o->mod) o->mod = 1; |
64 | return ((PyObject *)o); | |
65 | } break; | |
66 | case KSZ_SET: { | |
67 | keyszset_pyobj *o = | |
b2687a0a | 68 | PyObject_New(keyszset_pyobj, keyszset_pytype); |
d7ab1bab | 69 | int i, n; |
cfe23cf8 MW |
70 | o->dfl = ARG(0); |
71 | for (i = 0; ARG(i); i++) ; | |
d7ab1bab | 72 | n = i; o->set = PyTuple_New(n); |
73 | for (i = 0; i < n; i++) | |
cfe23cf8 | 74 | PyTuple_SET_ITEM(o->set, i, PyInt_FromLong(ARG(i))); |
d7ab1bab | 75 | return ((PyObject *)o); |
76 | } break; | |
77 | default: | |
78 | abort(); | |
79 | } | |
cfe23cf8 | 80 | #undef ARG |
d7ab1bab | 81 | } |
82 | ||
83 | static PyObject *keyszany_pynew(PyTypeObject *ty, | |
84 | PyObject *arg, PyObject *kw) | |
85 | { | |
86 | char *kwlist[] = { "default", 0 }; | |
87 | int dfl; | |
88 | keysz_pyobj *o; | |
89 | ||
90 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "i:new", kwlist, &dfl)) | |
91 | goto end; | |
92 | if (dfl < 0) VALERR("key size cannot be negative"); | |
93 | o = (keysz_pyobj *)ty->tp_alloc(ty, 0); | |
94 | o->dfl = dfl; | |
95 | return ((PyObject *)o); | |
96 | end: | |
97 | return (0); | |
98 | } | |
99 | ||
100 | static PyObject *keyszrange_pynew(PyTypeObject *ty, | |
101 | PyObject *arg, PyObject *kw) | |
102 | { | |
103 | char *kwlist[] = { "default", "min", "max", "mod", 0 }; | |
104 | int dfl, min = 0, max = 0, mod = 1; | |
105 | keyszrange_pyobj *o; | |
106 | ||
107 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "i|iii:new", kwlist, | |
108 | &dfl, &min, &max, &mod)) | |
109 | goto end; | |
110 | if (dfl < 0 || min < 0 || max < 0) | |
111 | VALERR("key size cannot be negative"); | |
112 | if (min > dfl || (max && dfl > max)) | |
113 | VALERR("bad key size bounds"); | |
114 | if (mod <= 0 || dfl % mod || min % mod || max % mod) | |
115 | VALERR("bad key size modulus"); | |
116 | o = (keyszrange_pyobj *)ty->tp_alloc(ty, 0); | |
117 | o->dfl = dfl; | |
118 | o->min = min; | |
119 | o->max = max; | |
120 | o->mod = mod; | |
121 | return ((PyObject *)o); | |
122 | end: | |
123 | return (0); | |
124 | } | |
125 | ||
126 | static PyObject *keyszset_pynew(PyTypeObject *ty, | |
127 | PyObject *arg, PyObject *kw) | |
128 | { | |
129 | char *kwlist[] = { "default", "set", 0 }; | |
130 | int dfl, i, n, xx; | |
131 | PyObject *set = 0; | |
132 | PyObject *x = 0, *l = 0; | |
133 | keyszset_pyobj *o = 0; | |
134 | ||
135 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "i|O:new", kwlist, | |
136 | &dfl, &set)) | |
137 | goto end; | |
138 | if (!set) set = PyTuple_New(0); | |
139 | else Py_INCREF(set); | |
140 | if (!PySequence_Check(set)) TYERR("want a sequence"); | |
141 | n = PySequence_Size(set); | |
142 | l = PyList_New(0); | |
143 | if (PyErr_Occurred()) goto end; | |
144 | if (dfl < 0) VALERR("key size cannot be negative"); | |
145 | x = PyInt_FromLong(dfl); | |
146 | PyList_Append(l, x); | |
147 | Py_DECREF(x); | |
148 | x = 0; | |
149 | for (i = 0; i < n; i++) { | |
150 | if ((x = PySequence_GetItem(set, i)) == 0) goto end; | |
151 | xx = PyInt_AsLong(x); | |
152 | if (PyErr_Occurred()) goto end; | |
153 | if (xx == dfl) continue; | |
154 | if (xx < 0) VALERR("key size cannot be negative"); | |
155 | PyList_Append(l, x); | |
156 | Py_DECREF(x); | |
b2687a0a | 157 | x = 0; |
d7ab1bab | 158 | } |
159 | Py_DECREF(set); | |
160 | if ((set = PySequence_Tuple(l)) == 0) goto end; | |
161 | o = (keyszset_pyobj *)ty->tp_alloc(ty, 0); | |
162 | o->dfl = dfl; | |
163 | o->set = set; | |
164 | Py_INCREF(set); | |
165 | end: | |
166 | Py_XDECREF(set); | |
167 | Py_XDECREF(l); | |
168 | Py_XDECREF(x); | |
169 | return ((PyObject *)o); | |
170 | } | |
171 | ||
172 | static PyObject *kaget_min(PyObject *me, void *hunoz) | |
173 | { return (PyInt_FromLong(0)); } | |
174 | #define kaget_max kaget_min | |
175 | ||
176 | static PyObject *ksget_min(PyObject *me, void *hunoz) | |
177 | { | |
178 | PyObject *set = ((keyszset_pyobj *)me)->set; | |
179 | int i, n, y, x = -1; | |
180 | n = PyTuple_Size(set); | |
181 | for (i = 0; i < n; i++) { | |
182 | y = PyInt_AsLong(PyTuple_GetItem(set, i)); | |
183 | if (x == -1 || y < x) x = y; | |
184 | } | |
185 | return (PyInt_FromLong(x)); | |
186 | } | |
187 | ||
188 | static PyObject *ksget_max(PyObject *me, void *hunoz) | |
189 | { | |
190 | PyObject *set = ((keyszset_pyobj *)me)->set; | |
191 | int i, n, y, x = -1; | |
192 | n = PyTuple_Size(set); | |
193 | for (i = 0; i < n; i++) { | |
194 | y = PyInt_AsLong(PyTuple_GetItem(set, i)); | |
195 | if (y > x) x = y; | |
196 | } | |
197 | return (PyInt_FromLong(x)); | |
198 | } | |
199 | ||
200 | static PyMemberDef keysz_pymembers[] = { | |
201 | #define MEMBERSTRUCT keysz_pyobj | |
202 | #define default dfl /* ugh! */ | |
203 | MEMBER(default, T_INT, READONLY, "KSZ.default -> default key size") | |
204 | #undef default | |
205 | #undef MEMBERSTRUCT | |
206 | { 0 } | |
207 | }; | |
208 | ||
209 | static PyGetSetDef keyszany_pygetset[] = { | |
210 | #define GETSETNAME(op, name) ka##op##_##name | |
211 | GET (min, "KSZ.min -> smallest allowed key size") | |
212 | GET (max, "KSZ.min -> largest allowed key size") | |
213 | #undef GETSETNAME | |
214 | { 0 } | |
215 | }; | |
216 | ||
217 | static PyMemberDef keyszrange_pymembers[] = { | |
218 | #define MEMBERSTRUCT keyszrange_pyobj | |
219 | MEMBER(min, T_INT, READONLY, "KSZ.min -> smallest allowed key size") | |
220 | MEMBER(max, T_INT, READONLY, "KSZ.min -> largest allowed key size") | |
221 | MEMBER(mod, T_INT, READONLY, | |
222 | "KSZ.mod -> key size must be a multiple of this") | |
223 | #undef MEMBERSTRUCT | |
224 | { 0 } | |
225 | }; | |
226 | ||
227 | static PyGetSetDef keyszset_pygetset[] = { | |
228 | #define GETSETNAME(op, name) ks##op##_##name | |
229 | GET (min, "KSZ.min -> smallest allowed key size") | |
230 | GET (max, "KSZ.min -> largest allowed key size") | |
231 | #undef GETSETNAME | |
232 | { 0 } | |
233 | }; | |
234 | ||
235 | static PyMemberDef keyszset_pymembers[] = { | |
236 | #define MEMBERSTRUCT keyszset_pyobj | |
237 | MEMBER(set, T_OBJECT, READONLY, "KSZ.set -> allowed key sizes") | |
238 | #undef MEMBERSTRUCT | |
239 | { 0 } | |
240 | }; | |
241 | ||
242 | static PyTypeObject keysz_pytype_skel = { | |
6d4db0bf | 243 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 244 | "KeySZ", /* @tp_name@ */ |
d7ab1bab | 245 | sizeof(keysz_pyobj), /* @tp_basicsize@ */ |
246 | 0, /* @tp_itemsize@ */ | |
247 | ||
3aa33042 | 248 | 0, /* @tp_dealloc@ */ |
d7ab1bab | 249 | 0, /* @tp_print@ */ |
250 | 0, /* @tp_getattr@ */ | |
251 | 0, /* @tp_setattr@ */ | |
252 | 0, /* @tp_compare@ */ | |
253 | 0, /* @tp_repr@ */ | |
254 | 0, /* @tp_as_number@ */ | |
255 | 0, /* @tp_as_sequence@ */ | |
256 | 0, /* @tp_as_mapping@ */ | |
257 | 0, /* @tp_hash@ */ | |
258 | 0, /* @tp_call@ */ | |
259 | 0, /* @tp_str@ */ | |
260 | 0, /* @tp_getattro@ */ | |
261 | 0, /* @tp_setattro@ */ | |
262 | 0, /* @tp_as_buffer@ */ | |
263 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
264 | Py_TPFLAGS_BASETYPE, | |
265 | ||
266 | /* @tp_doc@ */ | |
267 | "Key size constraints.", | |
268 | ||
269 | 0, /* @tp_traverse@ */ | |
270 | 0, /* @tp_clear@ */ | |
271 | 0, /* @tp_richcompare@ */ | |
272 | 0, /* @tp_weaklistoffset@ */ | |
273 | 0, /* @tp_iter@ */ | |
963a6148 | 274 | 0, /* @tp_iternext@ */ |
d7ab1bab | 275 | 0, /* @tp_methods@ */ |
276 | keysz_pymembers, /* @tp_members@ */ | |
277 | 0, /* @tp_getset@ */ | |
278 | 0, /* @tp_base@ */ | |
279 | 0, /* @tp_dict@ */ | |
280 | 0, /* @tp_descr_get@ */ | |
281 | 0, /* @tp_descr_set@ */ | |
282 | 0, /* @tp_dictoffset@ */ | |
283 | 0, /* @tp_init@ */ | |
284 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
285 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 286 | 0, /* @tp_free@ */ |
d7ab1bab | 287 | 0 /* @tp_is_gc@ */ |
288 | }; | |
289 | ||
290 | static PyTypeObject keyszany_pytype_skel = { | |
6d4db0bf | 291 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 292 | "KeySZAny", /* @tp_name@ */ |
d7ab1bab | 293 | sizeof(keysz_pyobj), /* @tp_basicsize@ */ |
294 | 0, /* @tp_itemsize@ */ | |
295 | ||
3aa33042 | 296 | 0, /* @tp_dealloc@ */ |
d7ab1bab | 297 | 0, /* @tp_print@ */ |
298 | 0, /* @tp_getattr@ */ | |
299 | 0, /* @tp_setattr@ */ | |
300 | 0, /* @tp_compare@ */ | |
301 | 0, /* @tp_repr@ */ | |
302 | 0, /* @tp_as_number@ */ | |
303 | 0, /* @tp_as_sequence@ */ | |
304 | 0, /* @tp_as_mapping@ */ | |
305 | 0, /* @tp_hash@ */ | |
306 | 0, /* @tp_call@ */ | |
307 | 0, /* @tp_str@ */ | |
308 | 0, /* @tp_getattro@ */ | |
309 | 0, /* @tp_setattro@ */ | |
310 | 0, /* @tp_as_buffer@ */ | |
311 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
312 | Py_TPFLAGS_BASETYPE, | |
313 | ||
314 | /* @tp_doc@ */ | |
315 | "Key size constraints. This object imposes no constraints on size.", | |
316 | ||
317 | 0, /* @tp_traverse@ */ | |
318 | 0, /* @tp_clear@ */ | |
319 | 0, /* @tp_richcompare@ */ | |
320 | 0, /* @tp_weaklistoffset@ */ | |
321 | 0, /* @tp_iter@ */ | |
963a6148 | 322 | 0, /* @tp_iternext@ */ |
d7ab1bab | 323 | 0, /* @tp_methods@ */ |
324 | 0, /* @tp_members@ */ | |
325 | keyszany_pygetset, /* @tp_getset@ */ | |
326 | 0, /* @tp_base@ */ | |
327 | 0, /* @tp_dict@ */ | |
328 | 0, /* @tp_descr_get@ */ | |
329 | 0, /* @tp_descr_set@ */ | |
330 | 0, /* @tp_dictoffset@ */ | |
331 | 0, /* @tp_init@ */ | |
332 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
333 | keyszany_pynew, /* @tp_new@ */ | |
3aa33042 | 334 | 0, /* @tp_free@ */ |
d7ab1bab | 335 | 0 /* @tp_is_gc@ */ |
336 | }; | |
337 | ||
338 | static PyTypeObject keyszrange_pytype_skel = { | |
6d4db0bf | 339 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 340 | "KeySZRange", /* @tp_name@ */ |
d7ab1bab | 341 | sizeof(keyszrange_pyobj), /* @tp_basicsize@ */ |
342 | 0, /* @tp_itemsize@ */ | |
343 | ||
3aa33042 | 344 | 0, /* @tp_dealloc@ */ |
d7ab1bab | 345 | 0, /* @tp_print@ */ |
346 | 0, /* @tp_getattr@ */ | |
347 | 0, /* @tp_setattr@ */ | |
348 | 0, /* @tp_compare@ */ | |
349 | 0, /* @tp_repr@ */ | |
350 | 0, /* @tp_as_number@ */ | |
351 | 0, /* @tp_as_sequence@ */ | |
352 | 0, /* @tp_as_mapping@ */ | |
353 | 0, /* @tp_hash@ */ | |
354 | 0, /* @tp_call@ */ | |
355 | 0, /* @tp_str@ */ | |
356 | 0, /* @tp_getattro@ */ | |
357 | 0, /* @tp_setattro@ */ | |
358 | 0, /* @tp_as_buffer@ */ | |
359 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
360 | Py_TPFLAGS_BASETYPE, | |
361 | ||
362 | /* @tp_doc@ */ | |
363 | "Key size constraints. This object asserts minimum and maximum (if\n\ | |
364 | sizes, and requires the key length to be a multiple of some value.", | |
365 | ||
366 | 0, /* @tp_traverse@ */ | |
367 | 0, /* @tp_clear@ */ | |
368 | 0, /* @tp_richcompare@ */ | |
369 | 0, /* @tp_weaklistoffset@ */ | |
370 | 0, /* @tp_iter@ */ | |
963a6148 | 371 | 0, /* @tp_iternext@ */ |
d7ab1bab | 372 | 0, /* @tp_methods@ */ |
373 | keyszrange_pymembers, /* @tp_members@ */ | |
374 | 0, /* @tp_getset@ */ | |
375 | 0, /* @tp_base@ */ | |
376 | 0, /* @tp_dict@ */ | |
377 | 0, /* @tp_descr_get@ */ | |
378 | 0, /* @tp_descr_set@ */ | |
379 | 0, /* @tp_dictoffset@ */ | |
380 | 0, /* @tp_init@ */ | |
381 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
382 | keyszrange_pynew, /* @tp_new@ */ | |
3aa33042 | 383 | 0, /* @tp_free@ */ |
d7ab1bab | 384 | 0 /* @tp_is_gc@ */ |
385 | }; | |
386 | ||
387 | static PyTypeObject keyszset_pytype_skel = { | |
6d4db0bf | 388 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 389 | "KeySZSet", /* @tp_name@ */ |
d7ab1bab | 390 | sizeof(keyszset_pyobj), /* @tp_basicsize@ */ |
391 | 0, /* @tp_itemsize@ */ | |
392 | ||
3aa33042 | 393 | 0, /* @tp_dealloc@ */ |
d7ab1bab | 394 | 0, /* @tp_print@ */ |
395 | 0, /* @tp_getattr@ */ | |
396 | 0, /* @tp_setattr@ */ | |
397 | 0, /* @tp_compare@ */ | |
398 | 0, /* @tp_repr@ */ | |
399 | 0, /* @tp_as_number@ */ | |
400 | 0, /* @tp_as_sequence@ */ | |
401 | 0, /* @tp_as_mapping@ */ | |
402 | 0, /* @tp_hash@ */ | |
403 | 0, /* @tp_call@ */ | |
404 | 0, /* @tp_str@ */ | |
405 | 0, /* @tp_getattro@ */ | |
406 | 0, /* @tp_setattro@ */ | |
407 | 0, /* @tp_as_buffer@ */ | |
408 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
409 | Py_TPFLAGS_BASETYPE, | |
410 | ||
411 | /* @tp_doc@ */ | |
412 | "Key size constraints. This object requires the key to be one of a\n\ | |
413 | few listed sizes.", | |
414 | ||
415 | 0, /* @tp_traverse@ */ | |
416 | 0, /* @tp_clear@ */ | |
417 | 0, /* @tp_richcompare@ */ | |
418 | 0, /* @tp_weaklistoffset@ */ | |
419 | 0, /* @tp_iter@ */ | |
963a6148 | 420 | 0, /* @tp_iternext@ */ |
d7ab1bab | 421 | 0, /* @tp_methods@ */ |
422 | keyszset_pymembers, /* @tp_members@ */ | |
423 | keyszset_pygetset, /* @tp_getset@ */ | |
424 | 0, /* @tp_base@ */ | |
425 | 0, /* @tp_dict@ */ | |
426 | 0, /* @tp_descr_get@ */ | |
427 | 0, /* @tp_descr_set@ */ | |
428 | 0, /* @tp_dictoffset@ */ | |
429 | 0, /* @tp_init@ */ | |
430 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
431 | keyszset_pynew, /* @tp_new@ */ | |
3aa33042 | 432 | 0, /* @tp_free@ */ |
d7ab1bab | 433 | 0 /* @tp_is_gc@ */ |
434 | }; | |
435 | ||
89157adc MW |
436 | #define KSZCONVOP(op) \ |
437 | static PyObject *meth__KeySZ_##op(PyObject *me, PyObject *arg) \ | |
438 | { \ | |
439 | double x, y; \ | |
440 | if (!PyArg_ParseTuple(arg, "Od:" #op, &me, &x)) return (0); \ | |
441 | y = keysz_##op(x); \ | |
442 | return (PyFloat_FromDouble(y)); \ | |
443 | } | |
444 | KSZCONVOP(fromdl) | |
445 | KSZCONVOP(fromschnorr) | |
446 | KSZCONVOP(fromif) | |
447 | KSZCONVOP(fromec) | |
448 | KSZCONVOP(todl) | |
449 | KSZCONVOP(toschnorr) | |
450 | KSZCONVOP(toif) | |
451 | KSZCONVOP(toec) | |
452 | #undef KSZCONVOP | |
453 | ||
d7ab1bab | 454 | /*----- Symmetric encryption ----------------------------------------------*/ |
455 | ||
456 | PyTypeObject *gccipher_pytype, *gcipher_pytype; | |
457 | ||
458 | CONVFUNC(gccipher, gccipher *, GCCIPHER_CC) | |
459 | CONVFUNC(gcipher, gcipher *, GCIPHER_C) | |
460 | ||
461 | PyObject *gcipher_pywrap(PyObject *cobj, gcipher *c, unsigned f) | |
462 | { | |
463 | gcipher_pyobj *g; | |
464 | if (!cobj) cobj = gccipher_pywrap((/*unconst*/ gccipher *)GC_CLASS(c)); | |
465 | else Py_INCREF(cobj); | |
466 | g = PyObject_NEW(gcipher_pyobj, (PyTypeObject *)cobj); | |
467 | g->c = c; | |
468 | g->f = f; | |
b2687a0a | 469 | return ((PyObject *)g); |
d7ab1bab | 470 | } |
471 | ||
472 | static PyObject *gcipher_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
473 | { | |
474 | char *kwlist[] = { "k", 0 }; | |
475 | char *k; | |
476 | int sz; | |
477 | ||
478 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &sz)) | |
479 | goto end; | |
480 | if (keysz(sz, GCCIPHER_CC(ty)->keysz) != sz) VALERR("bad key length"); | |
481 | return (gcipher_pywrap((PyObject *)ty, | |
482 | GC_INIT(GCCIPHER_CC(ty), k, sz), | |
483 | f_freeme)); | |
484 | end: | |
b2687a0a | 485 | return (0); |
d7ab1bab | 486 | } |
487 | ||
488 | PyObject *gccipher_pywrap(gccipher *cc) | |
489 | { | |
df9f8366 | 490 | gccipher_pyobj *g = newtype(gccipher_pytype, 0, cc->name); |
d7ab1bab | 491 | g->cc = cc; |
24b3d57b MW |
492 | g->ty.ht_type.tp_basicsize = sizeof(gcipher_pyobj); |
493 | g->ty.ht_type.tp_base = gcipher_pytype; | |
d7ab1bab | 494 | Py_INCREF(gcipher_pytype); |
24b3d57b MW |
495 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
496 | Py_TPFLAGS_BASETYPE | | |
497 | Py_TPFLAGS_HEAPTYPE); | |
498 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
499 | g->ty.ht_type.tp_free = 0; | |
500 | g->ty.ht_type.tp_new = gcipher_pynew; | |
dc075750 | 501 | typeready(&g->ty.ht_type); |
d7ab1bab | 502 | return ((PyObject *)g); |
503 | } | |
504 | ||
505 | static void gcipher_pydealloc(PyObject *me) | |
506 | { | |
507 | if (GCIPHER_F(me) & f_freeme) | |
508 | GC_DESTROY(GCIPHER_C(me)); | |
509 | Py_DECREF(me->ob_type); | |
3aa33042 | 510 | FREEOBJ(me); |
d7ab1bab | 511 | } |
512 | ||
513 | static PyObject *gccget_name(PyObject *me, void *hunoz) | |
514 | { return (PyString_FromString(GCCIPHER_CC(me)->name)); } | |
515 | ||
516 | static PyObject *gccget_keysz(PyObject *me, void *hunoz) | |
517 | { return (keysz_pywrap(GCCIPHER_CC(me)->keysz)); } | |
518 | ||
519 | static PyObject *gccget_blksz(PyObject *me, void *hunoz) | |
520 | { return (PyInt_FromLong(GCCIPHER_CC(me)->blksz)); } | |
521 | ||
522 | static PyObject *gcmeth_encrypt(PyObject *me, PyObject *arg) | |
523 | { | |
524 | char *p; | |
525 | int sz; | |
526 | PyObject *rc = 0; | |
527 | ||
528 | if (!PyArg_ParseTuple(arg, "s#:encrypt", &p, &sz)) return (0); | |
529 | rc = bytestring_pywrap(0, sz); | |
530 | GC_ENCRYPT(GCIPHER_C(me), p, PyString_AS_STRING(rc), sz); | |
531 | return (rc); | |
532 | } | |
533 | ||
534 | static PyObject *gcmeth_enczero(PyObject *me, PyObject *arg) | |
535 | { | |
536 | char *p; | |
537 | int sz; | |
538 | PyObject *rc = 0; | |
539 | ||
540 | if (!PyArg_ParseTuple(arg, "i:enczero", &sz)) return (0); | |
541 | rc = bytestring_pywrap(0, sz); | |
542 | p = PyString_AS_STRING(rc); | |
543 | memset(p, 0, sz); | |
544 | GC_ENCRYPT(GCIPHER_C(me), p, p, sz); | |
545 | return (rc); | |
546 | } | |
547 | ||
548 | static PyObject *gcmeth_decrypt(PyObject *me, PyObject *arg) | |
549 | { | |
550 | char *p; | |
551 | int sz; | |
552 | PyObject *rc = 0; | |
553 | ||
554 | if (!PyArg_ParseTuple(arg, "s#:decrypt", &p, &sz)) return (0); | |
555 | rc = bytestring_pywrap(0, sz); | |
556 | GC_DECRYPT(GCIPHER_C(me), p, PyString_AS_STRING(rc), sz); | |
557 | return (rc); | |
558 | } | |
559 | ||
560 | static PyObject *gcmeth_deczero(PyObject *me, PyObject *arg) | |
561 | { | |
562 | char *p; | |
563 | int sz; | |
564 | PyObject *rc = 0; | |
565 | ||
566 | if (!PyArg_ParseTuple(arg, "i:deczero", &sz)) return (0); | |
567 | rc = bytestring_pywrap(0, sz); | |
568 | p = PyString_AS_STRING(rc); | |
569 | memset(p, 0, sz); | |
570 | GC_DECRYPT(GCIPHER_C(me), p, p, sz); | |
571 | return (rc); | |
572 | } | |
573 | ||
574 | static PyObject *gcmeth_setiv(PyObject *me, PyObject *arg) | |
575 | { | |
576 | char *p; | |
577 | int sz; | |
578 | ||
579 | if (!PyArg_ParseTuple(arg, "s#:setiv", &p, &sz)) goto end; | |
580 | if (!GC_CLASS(GCIPHER_C(me))->blksz) VALERR("not a block cipher mode"); | |
581 | if (sz != GC_CLASS(GCIPHER_C(me))->blksz) VALERR("bad IV length"); | |
582 | GC_SETIV(GCIPHER_C(me), p); | |
583 | RETURN_ME; | |
584 | end: | |
585 | return (0); | |
586 | } | |
587 | ||
588 | static PyObject *gcmeth_bdry(PyObject *me, PyObject *arg) | |
589 | { | |
590 | if (!PyArg_ParseTuple(arg, ":bdry")) goto end; | |
591 | if (!GC_CLASS(GCIPHER_C(me))->blksz) VALERR("not a block cipher mode"); | |
592 | GC_BDRY(GCIPHER_C(me)); | |
593 | RETURN_ME; | |
594 | end: | |
595 | return (0); | |
596 | } | |
597 | ||
598 | static PyGetSetDef gccipher_pygetset[] = { | |
599 | #define GETSETNAME(op, name) gcc##op##_##name | |
600 | GET (keysz, "CC.keysz -> acceptable key sizes") | |
601 | GET (blksz, "CC.blksz -> block size, or zero") | |
602 | GET (name, "CC.name -> name of this kind of cipher") | |
603 | #undef GETSETNAME | |
604 | { 0 } | |
605 | }; | |
606 | ||
607 | static PyMethodDef gcipher_pymethods[] = { | |
608 | #define METHNAME(name) gcmeth_##name | |
609 | METH (encrypt, "C.encrypt(PT) -> CT") | |
610 | METH (enczero, "C.enczero(N) -> CT") | |
611 | METH (decrypt, "C.decrypt(CT) -> PT") | |
612 | METH (deczero, "C.deczero(N) -> PT") | |
613 | METH (setiv, "C.setiv(IV)") | |
614 | METH (bdry, "C.bdry()") | |
615 | #undef METHNAME | |
616 | { 0 } | |
617 | }; | |
618 | ||
619 | static PyTypeObject gccipher_pytype_skel = { | |
6d4db0bf | 620 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 621 | "GCCipher", /* @tp_name@ */ |
d7ab1bab | 622 | sizeof(gccipher_pyobj), /* @tp_basicsize@ */ |
623 | 0, /* @tp_itemsize@ */ | |
624 | ||
625 | 0, /* @tp_dealloc@ */ | |
626 | 0, /* @tp_print@ */ | |
627 | 0, /* @tp_getattr@ */ | |
628 | 0, /* @tp_setattr@ */ | |
629 | 0, /* @tp_compare@ */ | |
630 | 0, /* @tp_repr@ */ | |
631 | 0, /* @tp_as_number@ */ | |
632 | 0, /* @tp_as_sequence@ */ | |
633 | 0, /* @tp_as_mapping@ */ | |
634 | 0, /* @tp_hash@ */ | |
635 | 0, /* @tp_call@ */ | |
636 | 0, /* @tp_str@ */ | |
637 | 0, /* @tp_getattro@ */ | |
638 | 0, /* @tp_setattro@ */ | |
639 | 0, /* @tp_as_buffer@ */ | |
640 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
641 | Py_TPFLAGS_BASETYPE, | |
642 | ||
643 | /* @tp_doc@ */ | |
644 | "Symmetric cipher metaclass.", | |
645 | ||
646 | 0, /* @tp_traverse@ */ | |
647 | 0, /* @tp_clear@ */ | |
648 | 0, /* @tp_richcompare@ */ | |
649 | 0, /* @tp_weaklistoffset@ */ | |
650 | 0, /* @tp_iter@ */ | |
963a6148 | 651 | 0, /* @tp_iternext@ */ |
d7ab1bab | 652 | 0, /* @tp_methods@ */ |
653 | 0, /* @tp_members@ */ | |
654 | gccipher_pygetset, /* @tp_getset@ */ | |
655 | 0, /* @tp_base@ */ | |
656 | 0, /* @tp_dict@ */ | |
657 | 0, /* @tp_descr_get@ */ | |
658 | 0, /* @tp_descr_set@ */ | |
659 | 0, /* @tp_dictoffset@ */ | |
660 | 0, /* @tp_init@ */ | |
661 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
662 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 663 | 0, /* @tp_free@ */ |
d7ab1bab | 664 | 0 /* @tp_is_gc@ */ |
665 | }; | |
666 | ||
667 | static PyTypeObject gcipher_pytype_skel = { | |
6d4db0bf | 668 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 669 | "GCipher", /* @tp_name@ */ |
d7ab1bab | 670 | sizeof(gcipher_pyobj), /* @tp_basicsize@ */ |
671 | 0, /* @tp_itemsize@ */ | |
672 | ||
673 | gcipher_pydealloc, /* @tp_dealloc@ */ | |
674 | 0, /* @tp_print@ */ | |
675 | 0, /* @tp_getattr@ */ | |
676 | 0, /* @tp_setattr@ */ | |
677 | 0, /* @tp_compare@ */ | |
678 | 0, /* @tp_repr@ */ | |
679 | 0, /* @tp_as_number@ */ | |
680 | 0, /* @tp_as_sequence@ */ | |
681 | 0, /* @tp_as_mapping@ */ | |
682 | 0, /* @tp_hash@ */ | |
683 | 0, /* @tp_call@ */ | |
684 | 0, /* @tp_str@ */ | |
685 | 0, /* @tp_getattro@ */ | |
686 | 0, /* @tp_setattro@ */ | |
687 | 0, /* @tp_as_buffer@ */ | |
688 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
689 | Py_TPFLAGS_BASETYPE, | |
690 | ||
691 | /* @tp_doc@ */ | |
692 | "Symmetric cipher, abstract base class.", | |
693 | ||
694 | 0, /* @tp_traverse@ */ | |
695 | 0, /* @tp_clear@ */ | |
696 | 0, /* @tp_richcompare@ */ | |
697 | 0, /* @tp_weaklistoffset@ */ | |
698 | 0, /* @tp_iter@ */ | |
963a6148 | 699 | 0, /* @tp_iternext@ */ |
d7ab1bab | 700 | gcipher_pymethods, /* @tp_methods@ */ |
701 | 0, /* @tp_members@ */ | |
702 | 0, /* @tp_getset@ */ | |
703 | 0, /* @tp_base@ */ | |
704 | 0, /* @tp_dict@ */ | |
705 | 0, /* @tp_descr_get@ */ | |
706 | 0, /* @tp_descr_set@ */ | |
707 | 0, /* @tp_dictoffset@ */ | |
708 | 0, /* @tp_init@ */ | |
709 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
710 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 711 | 0, /* @tp_free@ */ |
d7ab1bab | 712 | 0 /* @tp_is_gc@ */ |
713 | }; | |
714 | ||
715 | /*----- Hash functions ----------------------------------------------------*/ | |
716 | ||
717 | PyTypeObject *gchash_pytype, *ghash_pytype; | |
718 | ||
719 | CONVFUNC(gchash, gchash *, GCHASH_CH) | |
720 | CONVFUNC(ghash, ghash *, GHASH_H) | |
721 | ||
722 | static PyObject *ghash_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
723 | { | |
724 | char *kwlist[] = { 0 }; | |
725 | if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", kwlist)) | |
726 | goto end; | |
727 | return (ghash_pywrap((PyObject *)ty, GH_INIT(GCHASH_CH(ty)), f_freeme)); | |
728 | end: | |
b2687a0a | 729 | return (0); |
d7ab1bab | 730 | } |
731 | ||
732 | PyObject *gchash_pywrap(gchash *ch) | |
733 | { | |
df9f8366 | 734 | gchash_pyobj *g = newtype(gchash_pytype, 0, ch->name); |
d7ab1bab | 735 | g->ch = ch; |
24b3d57b MW |
736 | g->ty.ht_type.tp_basicsize = sizeof(ghash_pyobj); |
737 | g->ty.ht_type.tp_base = ghash_pytype; | |
d7ab1bab | 738 | Py_INCREF(ghash_pytype); |
24b3d57b MW |
739 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
740 | Py_TPFLAGS_BASETYPE | | |
741 | Py_TPFLAGS_HEAPTYPE); | |
742 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
743 | g->ty.ht_type.tp_free = 0; | |
744 | g->ty.ht_type.tp_new = ghash_pynew; | |
dc075750 | 745 | typeready(&g->ty.ht_type); |
d7ab1bab | 746 | return ((PyObject *)g); |
747 | } | |
748 | ||
749 | PyObject *ghash_pywrap(PyObject *cobj, ghash *h, unsigned f) | |
750 | { | |
751 | ghash_pyobj *g; | |
752 | if (!cobj) cobj = gchash_pywrap((/*unconst*/ gchash *)GH_CLASS(h)); | |
753 | else Py_INCREF(cobj); | |
754 | g = PyObject_NEW(ghash_pyobj, (PyTypeObject *)cobj); | |
755 | g->h = h; | |
756 | g->f = f; | |
b2687a0a | 757 | return ((PyObject *)g); |
d7ab1bab | 758 | } |
759 | ||
760 | static void ghash_pydealloc(PyObject *me) | |
761 | { | |
762 | if (GHASH_F(me) & f_freeme) | |
763 | GH_DESTROY(GHASH_H(me)); | |
764 | Py_DECREF(me->ob_type); | |
3aa33042 | 765 | FREEOBJ(me); |
d7ab1bab | 766 | } |
767 | ||
768 | static PyObject *gchget_name(PyObject *me, void *hunoz) | |
769 | { return (PyString_FromString(GCHASH_CH(me)->name)); } | |
770 | ||
771 | static PyObject *gchget_hashsz(PyObject *me, void *hunoz) | |
772 | { return (PyInt_FromLong(GCHASH_CH(me)->hashsz)); } | |
773 | ||
774 | static PyObject *gchget_bufsz(PyObject *me, void *hunoz) | |
775 | { return (PyInt_FromLong(GCHASH_CH(me)->bufsz)); } | |
776 | ||
777 | static PyObject *ghmeth_hash(PyObject *me, PyObject *arg) | |
778 | { | |
779 | char *p; | |
780 | int sz; | |
781 | if (!PyArg_ParseTuple(arg, "s#:hash", &p, &sz)) return (0); | |
782 | GH_HASH(GHASH_H(me), p, sz); | |
783 | RETURN_ME; | |
784 | } | |
785 | ||
786 | static PyObject *ghmeth_done(PyObject *me, PyObject *arg) | |
787 | { | |
788 | ghash *g; | |
789 | PyObject *rc; | |
790 | if (!PyArg_ParseTuple(arg, ":done")) return (0); | |
791 | g = GH_COPY(GHASH_H(me)); | |
792 | rc = bytestring_pywrap(0, g->ops->c->hashsz); | |
793 | GH_DONE(g, PyString_AS_STRING(rc)); | |
794 | GH_DESTROY(g); | |
795 | return (rc); | |
796 | } | |
797 | ||
798 | static PyGetSetDef gchash_pygetset[] = { | |
799 | #define GETSETNAME(op, name) gch##op##_##name | |
800 | GET (bufsz, "CH.bufsz -> hash buffer size, or zero") | |
801 | GET (hashsz, "CH.blksz -> hash output size") | |
802 | GET (name, "CH.name -> name of this kind of hash") | |
803 | #undef GETSETNAME | |
804 | { 0 } | |
805 | }; | |
806 | ||
46e6ad89 | 807 | #define GHMETH_HASHU_(n, W, w) \ |
808 | static PyObject *ghmeth_hashu##w(PyObject *me, PyObject *arg) \ | |
809 | { \ | |
810 | uint##n x; \ | |
811 | if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) goto end; \ | |
812 | GH_HASHU##W(GHASH_H(me), x); \ | |
813 | RETURN_ME; \ | |
814 | end: \ | |
815 | return (0); \ | |
816 | } | |
817 | DOUINTCONV(GHMETH_HASHU_) | |
818 | ||
819 | #define GHMETH_HASHBUF_(n, W, w) \ | |
820 | static PyObject *ghmeth_hashbuf##w(PyObject *me, PyObject *arg) \ | |
821 | { \ | |
822 | char *p; \ | |
823 | int sz; \ | |
824 | if (!PyArg_ParseTuple(arg, "s#:hashbuf" #w, &p, &sz)) goto end; \ | |
825 | if (sz > MASK##n) TYERR("string too long"); \ | |
826 | GH_HASHBUF##W(GHASH_H(me), p, sz); \ | |
827 | RETURN_ME; \ | |
828 | end: \ | |
829 | return (0); \ | |
830 | } | |
831 | DOUINTCONV(GHMETH_HASHBUF_) | |
832 | ||
833 | static PyObject *ghmeth_hashstrz(PyObject *me, PyObject *arg) | |
834 | { | |
835 | char *p; | |
836 | if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0); | |
837 | GH_HASHSTRZ(GHASH_H(me), p); | |
838 | RETURN_ME; | |
839 | } | |
840 | ||
d7ab1bab | 841 | static PyMethodDef ghash_pymethods[] = { |
842 | #define METHNAME(name) ghmeth_##name | |
843 | METH (hash, "H.hash(M)") | |
46e6ad89 | 844 | #define METHU_(n, W, w) METH(hashu##w, "H.hashu" #w "(WORD)") |
845 | DOUINTCONV(METHU_) | |
846 | #define METHBUF_(n, W, w) METH(hashbuf##w, "H.hashbuf" #w "(BYTES)") | |
847 | DOUINTCONV(METHBUF_) | |
848 | METH (hashstrz, "H.hashstrz(STRING)") | |
d7ab1bab | 849 | METH (done, "H.done() -> HASH") |
850 | #undef METHNAME | |
851 | { 0 } | |
852 | }; | |
853 | ||
854 | static PyTypeObject gchash_pytype_skel = { | |
6d4db0bf | 855 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 856 | "GCHash", /* @tp_name@ */ |
d7ab1bab | 857 | sizeof(gchash_pyobj), /* @tp_basicsize@ */ |
858 | 0, /* @tp_itemsize@ */ | |
859 | ||
860 | 0, /* @tp_dealloc@ */ | |
861 | 0, /* @tp_print@ */ | |
862 | 0, /* @tp_getattr@ */ | |
863 | 0, /* @tp_setattr@ */ | |
864 | 0, /* @tp_compare@ */ | |
865 | 0, /* @tp_repr@ */ | |
866 | 0, /* @tp_as_number@ */ | |
867 | 0, /* @tp_as_sequence@ */ | |
868 | 0, /* @tp_as_mapping@ */ | |
869 | 0, /* @tp_hash@ */ | |
870 | 0, /* @tp_call@ */ | |
871 | 0, /* @tp_str@ */ | |
872 | 0, /* @tp_getattro@ */ | |
873 | 0, /* @tp_setattro@ */ | |
874 | 0, /* @tp_as_buffer@ */ | |
875 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
876 | Py_TPFLAGS_BASETYPE, | |
877 | ||
878 | /* @tp_doc@ */ | |
879 | "Hash function metaclass.", | |
880 | ||
881 | 0, /* @tp_traverse@ */ | |
882 | 0, /* @tp_clear@ */ | |
883 | 0, /* @tp_richcompare@ */ | |
884 | 0, /* @tp_weaklistoffset@ */ | |
885 | 0, /* @tp_iter@ */ | |
963a6148 | 886 | 0, /* @tp_iternext@ */ |
d7ab1bab | 887 | 0, /* @tp_methods@ */ |
888 | 0, /* @tp_members@ */ | |
889 | gchash_pygetset, /* @tp_getset@ */ | |
890 | 0, /* @tp_base@ */ | |
891 | 0, /* @tp_dict@ */ | |
892 | 0, /* @tp_descr_get@ */ | |
893 | 0, /* @tp_descr_set@ */ | |
894 | 0, /* @tp_dictoffset@ */ | |
895 | 0, /* @tp_init@ */ | |
896 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
897 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 898 | 0, /* @tp_free@ */ |
d7ab1bab | 899 | 0 /* @tp_is_gc@ */ |
900 | }; | |
901 | ||
902 | static PyTypeObject ghash_pytype_skel = { | |
6d4db0bf | 903 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 904 | "GHash", /* @tp_name@ */ |
d7ab1bab | 905 | sizeof(ghash_pyobj), /* @tp_basicsize@ */ |
906 | 0, /* @tp_itemsize@ */ | |
907 | ||
908 | ghash_pydealloc, /* @tp_dealloc@ */ | |
909 | 0, /* @tp_print@ */ | |
910 | 0, /* @tp_getattr@ */ | |
911 | 0, /* @tp_setattr@ */ | |
912 | 0, /* @tp_compare@ */ | |
913 | 0, /* @tp_repr@ */ | |
914 | 0, /* @tp_as_number@ */ | |
915 | 0, /* @tp_as_sequence@ */ | |
916 | 0, /* @tp_as_mapping@ */ | |
917 | 0, /* @tp_hash@ */ | |
918 | 0, /* @tp_call@ */ | |
919 | 0, /* @tp_str@ */ | |
920 | 0, /* @tp_getattro@ */ | |
921 | 0, /* @tp_setattro@ */ | |
922 | 0, /* @tp_as_buffer@ */ | |
923 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
924 | Py_TPFLAGS_BASETYPE, | |
925 | ||
926 | /* @tp_doc@ */ | |
927 | "Hash function, abstract base class.", | |
928 | ||
929 | 0, /* @tp_traverse@ */ | |
930 | 0, /* @tp_clear@ */ | |
931 | 0, /* @tp_richcompare@ */ | |
932 | 0, /* @tp_weaklistoffset@ */ | |
933 | 0, /* @tp_iter@ */ | |
963a6148 | 934 | 0, /* @tp_iternext@ */ |
d7ab1bab | 935 | ghash_pymethods, /* @tp_methods@ */ |
936 | 0, /* @tp_members@ */ | |
937 | 0, /* @tp_getset@ */ | |
938 | 0, /* @tp_base@ */ | |
939 | 0, /* @tp_dict@ */ | |
940 | 0, /* @tp_descr_get@ */ | |
941 | 0, /* @tp_descr_set@ */ | |
942 | 0, /* @tp_dictoffset@ */ | |
943 | 0, /* @tp_init@ */ | |
944 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
945 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 946 | 0, /* @tp_free@ */ |
d7ab1bab | 947 | 0 /* @tp_is_gc@ */ |
948 | }; | |
949 | ||
950 | /*----- Message authentication --------------------------------------------*/ | |
951 | ||
952 | PyTypeObject *gcmac_pytype, *gmac_pytype, *gmhash_pytype; | |
953 | ||
954 | CONVFUNC(gcmac, gcmac *, GCMAC_CM) | |
955 | CONVFUNC(gmac, gmac *, GMAC_M) | |
956 | CONVFUNC(gmhash, ghash *, GHASH_H) | |
957 | ||
958 | static PyObject *gmac_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
959 | { | |
960 | char *kwlist[] = { "k", 0 }; | |
961 | char *k; | |
962 | int sz; | |
963 | ||
964 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &sz)) | |
965 | goto end; | |
966 | if (keysz(sz, GCMAC_CM(ty)->keysz) != sz) VALERR("bad key length"); | |
967 | return (gmac_pywrap((PyObject *)ty, | |
968 | GM_KEY(GCMAC_CM(ty), k, sz), | |
969 | f_freeme)); | |
970 | end: | |
b2687a0a | 971 | return (0); |
d7ab1bab | 972 | } |
973 | ||
974 | static PyObject *gmhash_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
975 | { | |
976 | char *kwlist[] = { 0 }; | |
977 | ghash_pyobj *g; | |
978 | ||
979 | if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", kwlist)) return (0); | |
980 | g = PyObject_NEW(ghash_pyobj, ty); | |
981 | g->h = GM_INIT(GMAC_M(ty)); | |
982 | g->f = f_freeme; | |
983 | Py_INCREF(ty); | |
984 | return ((PyObject *)g); | |
985 | } | |
986 | ||
987 | PyObject *gcmac_pywrap(gcmac *cm) | |
988 | { | |
df9f8366 | 989 | gcmac_pyobj *g = newtype(gcmac_pytype, 0, cm->name); |
d7ab1bab | 990 | g->cm = cm; |
24b3d57b MW |
991 | g->ty.ht_type.tp_basicsize = sizeof(gmac_pyobj); |
992 | g->ty.ht_type.tp_base = gmac_pytype; | |
d7ab1bab | 993 | Py_INCREF(gmac_pytype); |
24b3d57b MW |
994 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
995 | Py_TPFLAGS_BASETYPE | | |
996 | Py_TPFLAGS_HEAPTYPE); | |
997 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
998 | g->ty.ht_type.tp_free = 0; | |
999 | g->ty.ht_type.tp_new = gmac_pynew; | |
dc075750 | 1000 | typeready(&g->ty.ht_type); |
d7ab1bab | 1001 | return ((PyObject *)g); |
1002 | } | |
1003 | ||
1004 | PyObject *gmac_pywrap(PyObject *cobj, gmac *m, unsigned f) | |
1005 | { | |
1006 | gmac_pyobj *g; | |
1007 | if (!cobj) cobj = gcmac_pywrap((/*unconst*/ gcmac *)GM_CLASS(m)); | |
1008 | else Py_INCREF(cobj); | |
df9f8366 | 1009 | g = newtype((PyTypeObject *)cobj, 0, 0); |
24b3d57b MW |
1010 | g->ty.ht_name = PyString_FromFormat("%s(keyed)", m->ops->c->name); |
1011 | g->ty.ht_type.tp_name = PyString_AS_STRING(g->ty.ht_name); | |
1012 | g->ty.ht_type.tp_base = gmhash_pytype; | |
d7ab1bab | 1013 | Py_INCREF(gmac_pytype); |
24b3d57b MW |
1014 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
1015 | Py_TPFLAGS_BASETYPE | | |
1016 | Py_TPFLAGS_HEAPTYPE); | |
1017 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
1018 | g->ty.ht_type.tp_free = 0; | |
1019 | g->ty.ht_type.tp_new = gmhash_pynew; | |
dc075750 | 1020 | typeready(&g->ty.ht_type); |
d7ab1bab | 1021 | g->m = m; |
1022 | g->f = f; | |
b2687a0a | 1023 | return ((PyObject *)g); |
d7ab1bab | 1024 | } |
1025 | ||
1026 | static void gmac_pydealloc(PyObject *me) | |
1027 | { | |
1028 | if (GMAC_F(me) & f_freeme) | |
1029 | GM_DESTROY(GMAC_M(me)); | |
1030 | Py_DECREF(me->ob_type); | |
d7ab1bab | 1031 | PyType_Type.tp_dealloc(me); |
1032 | } | |
1033 | ||
1034 | static PyObject *gcmget_name(PyObject *me, void *hunoz) | |
1035 | { return (PyString_FromString(GCMAC_CM(me)->name)); } | |
1036 | ||
1037 | static PyObject *gcmget_keysz(PyObject *me, void *hunoz) | |
1038 | { return (keysz_pywrap(GCMAC_CM(me)->keysz)); } | |
1039 | ||
1040 | static PyObject *gcmget_tagsz(PyObject *me, void *hunoz) | |
1041 | { return (PyInt_FromLong(GCMAC_CM(me)->hashsz)); } | |
1042 | ||
1043 | static PyGetSetDef gcmac_pygetset[] = { | |
1044 | #define GETSETNAME(op, name) gcm##op##_##name | |
1045 | GET (keysz, "CM.keysz -> acceptable key sizes") | |
1046 | GET (tagsz, "CM.tagsz -> MAC output size") | |
1047 | GET (name, "CM.name -> name of this kind of MAC") | |
1048 | #undef GETSETNAME | |
1049 | { 0 } | |
1050 | }; | |
1051 | ||
1052 | static PyTypeObject gcmac_pytype_skel = { | |
6d4db0bf | 1053 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 1054 | "GCMAC", /* @tp_name@ */ |
d7ab1bab | 1055 | sizeof(gchash_pyobj), /* @tp_basicsize@ */ |
1056 | 0, /* @tp_itemsize@ */ | |
1057 | ||
1058 | 0, /* @tp_dealloc@ */ | |
1059 | 0, /* @tp_print@ */ | |
1060 | 0, /* @tp_getattr@ */ | |
1061 | 0, /* @tp_setattr@ */ | |
1062 | 0, /* @tp_compare@ */ | |
1063 | 0, /* @tp_repr@ */ | |
1064 | 0, /* @tp_as_number@ */ | |
1065 | 0, /* @tp_as_sequence@ */ | |
1066 | 0, /* @tp_as_mapping@ */ | |
1067 | 0, /* @tp_hash@ */ | |
1068 | 0, /* @tp_call@ */ | |
1069 | 0, /* @tp_str@ */ | |
1070 | 0, /* @tp_getattro@ */ | |
1071 | 0, /* @tp_setattro@ */ | |
1072 | 0, /* @tp_as_buffer@ */ | |
1073 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1074 | Py_TPFLAGS_BASETYPE, | |
1075 | ||
1076 | /* @tp_doc@ */ | |
1077 | "Message authentication code metametaclass.", | |
1078 | ||
1079 | 0, /* @tp_traverse@ */ | |
1080 | 0, /* @tp_clear@ */ | |
1081 | 0, /* @tp_richcompare@ */ | |
1082 | 0, /* @tp_weaklistoffset@ */ | |
1083 | 0, /* @tp_iter@ */ | |
963a6148 | 1084 | 0, /* @tp_iternext@ */ |
d7ab1bab | 1085 | 0, /* @tp_methods@ */ |
1086 | 0, /* @tp_members@ */ | |
1087 | gcmac_pygetset, /* @tp_getset@ */ | |
1088 | 0, /* @tp_base@ */ | |
1089 | 0, /* @tp_dict@ */ | |
1090 | 0, /* @tp_descr_get@ */ | |
1091 | 0, /* @tp_descr_set@ */ | |
1092 | 0, /* @tp_dictoffset@ */ | |
1093 | 0, /* @tp_init@ */ | |
1094 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1095 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 1096 | 0, /* @tp_free@ */ |
d7ab1bab | 1097 | 0 /* @tp_is_gc@ */ |
1098 | }; | |
1099 | ||
1100 | static PyTypeObject gmac_pytype_skel = { | |
6d4db0bf | 1101 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 1102 | "GMAC", /* @tp_name@ */ |
d7ab1bab | 1103 | sizeof(gmac_pyobj), /* @tp_basicsize@ */ |
1104 | 0, /* @tp_itemsize@ */ | |
1105 | ||
1106 | gmac_pydealloc, /* @tp_dealloc@ */ | |
1107 | 0, /* @tp_print@ */ | |
1108 | 0, /* @tp_getattr@ */ | |
1109 | 0, /* @tp_setattr@ */ | |
1110 | 0, /* @tp_compare@ */ | |
1111 | 0, /* @tp_repr@ */ | |
1112 | 0, /* @tp_as_number@ */ | |
1113 | 0, /* @tp_as_sequence@ */ | |
1114 | 0, /* @tp_as_mapping@ */ | |
1115 | 0, /* @tp_hash@ */ | |
1116 | 0, /* @tp_call@ */ | |
1117 | 0, /* @tp_str@ */ | |
1118 | 0, /* @tp_getattro@ */ | |
1119 | 0, /* @tp_setattro@ */ | |
1120 | 0, /* @tp_as_buffer@ */ | |
1121 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1122 | Py_TPFLAGS_BASETYPE, | |
1123 | ||
1124 | /* @tp_doc@ */ | |
1125 | "Message authentication code metaclass, abstract base class.", | |
1126 | ||
1127 | 0, /* @tp_traverse@ */ | |
1128 | 0, /* @tp_clear@ */ | |
1129 | 0, /* @tp_richcompare@ */ | |
1130 | 0, /* @tp_weaklistoffset@ */ | |
1131 | 0, /* @tp_iter@ */ | |
963a6148 | 1132 | 0, /* @tp_iternext@ */ |
d7ab1bab | 1133 | 0, /* @tp_methods@ */ |
1134 | 0, /* @tp_members@ */ | |
1135 | 0, /* @tp_getset@ */ | |
1136 | 0, /* @tp_base@ */ | |
1137 | 0, /* @tp_dict@ */ | |
1138 | 0, /* @tp_descr_get@ */ | |
1139 | 0, /* @tp_descr_set@ */ | |
1140 | 0, /* @tp_dictoffset@ */ | |
1141 | 0, /* @tp_init@ */ | |
1142 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1143 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 1144 | 0, /* @tp_free@ */ |
d7ab1bab | 1145 | 0 /* @tp_is_gc@ */ |
1146 | }; | |
1147 | ||
1148 | static PyTypeObject gmhash_pytype_skel = { | |
6d4db0bf | 1149 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 1150 | "GMACHash", /* @tp_name@ */ |
d7ab1bab | 1151 | sizeof(ghash_pyobj), /* @tp_basicsize@ */ |
1152 | 0, /* @tp_itemsize@ */ | |
1153 | ||
1154 | ghash_pydealloc, /* @tp_dealloc@ */ | |
1155 | 0, /* @tp_print@ */ | |
1156 | 0, /* @tp_getattr@ */ | |
1157 | 0, /* @tp_setattr@ */ | |
1158 | 0, /* @tp_compare@ */ | |
1159 | 0, /* @tp_repr@ */ | |
1160 | 0, /* @tp_as_number@ */ | |
1161 | 0, /* @tp_as_sequence@ */ | |
1162 | 0, /* @tp_as_mapping@ */ | |
1163 | 0, /* @tp_hash@ */ | |
1164 | 0, /* @tp_call@ */ | |
1165 | 0, /* @tp_str@ */ | |
1166 | 0, /* @tp_getattro@ */ | |
1167 | 0, /* @tp_setattro@ */ | |
1168 | 0, /* @tp_as_buffer@ */ | |
1169 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1170 | Py_TPFLAGS_BASETYPE, | |
1171 | ||
1172 | /* @tp_doc@ */ | |
1173 | "Message authentication code, abstract base class.", | |
1174 | ||
1175 | 0, /* @tp_traverse@ */ | |
1176 | 0, /* @tp_clear@ */ | |
1177 | 0, /* @tp_richcompare@ */ | |
1178 | 0, /* @tp_weaklistoffset@ */ | |
1179 | 0, /* @tp_iter@ */ | |
963a6148 | 1180 | 0, /* @tp_iternext@ */ |
d7ab1bab | 1181 | 0, /* @tp_methods@ */ |
1182 | 0, /* @tp_members@ */ | |
1183 | 0, /* @tp_getset@ */ | |
1184 | 0, /* @tp_base@ */ | |
1185 | 0, /* @tp_dict@ */ | |
1186 | 0, /* @tp_descr_get@ */ | |
1187 | 0, /* @tp_descr_set@ */ | |
1188 | 0, /* @tp_dictoffset@ */ | |
1189 | 0, /* @tp_init@ */ | |
1190 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1191 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 1192 | 0, /* @tp_free@ */ |
d7ab1bab | 1193 | 0 /* @tp_is_gc@ */ |
1194 | }; | |
1195 | ||
03ed9abb MW |
1196 | /*----- Pseudorandom permutations -----------------------------------------*/ |
1197 | ||
1198 | static PyTypeObject *gcprp_pytype, *gprp_pytype; | |
1199 | ||
1200 | typedef struct prpinfo { | |
1201 | const char *name; | |
1202 | const octet *keysz; | |
1203 | size_t ctxsz; | |
1204 | size_t blksz; | |
1205 | void (*init)(void *, const void *, size_t); | |
1206 | void (*eblk)(void *, const void *, void *); | |
1207 | void (*dblk)(void *, const void *, void *); | |
1208 | } prpinfo; | |
1209 | ||
1210 | #define PRP_DEF(PRE, pre) \ | |
1211 | static void pre##_prpinit(void *ctx, const void *k, size_t ksz) \ | |
1212 | { pre##_init(ctx, k, ksz); } \ | |
1213 | static void pre##_prpeblk(void *ctx, const void *in, void *out) \ | |
1214 | { \ | |
1215 | uint32 w[PRE##_BLKSZ/4]; BLKC_LOAD(PRE, w, in); \ | |
1216 | pre##_eblk(ctx, w, w); BLKC_STORE(PRE, out, w); \ | |
1217 | } \ | |
1218 | static void pre##_prpdblk(void *ctx, const void *in, void *out) \ | |
1219 | { \ | |
1220 | uint32 w[PRE##_BLKSZ/4]; BLKC_LOAD(PRE, w, in); \ | |
1221 | pre##_dblk(ctx, w, w); BLKC_STORE(PRE, out, w); \ | |
1222 | } \ | |
1223 | static const prpinfo pre##_prpinfo = { \ | |
1224 | #pre, pre##_keysz, sizeof(pre##_ctx), PRE##_BLKSZ, \ | |
1225 | pre##_prpinit, pre##_prpeblk, pre##_prpdblk \ | |
1226 | }; | |
1227 | PRPS(PRP_DEF) | |
1228 | ||
1229 | static const struct prpinfo *const gprptab[] = { | |
1230 | #define PRP_ENTRY(PRE, pre) &pre##_prpinfo, | |
1231 | PRPS(PRP_ENTRY) | |
1232 | 0 | |
b2687a0a | 1233 | }; |
03ed9abb MW |
1234 | |
1235 | typedef struct gcprp_pyobj { | |
1236 | PyHeapTypeObject ty; | |
1237 | const prpinfo *prp; | |
1238 | } gcprp_pyobj; | |
1239 | #define GCPRP_PRP(o) (((gcprp_pyobj *)(o))->prp) | |
1240 | ||
1241 | typedef struct gprp_pyobj { | |
1242 | PyObject_HEAD | |
1243 | const prpinfo *prp; | |
1244 | } gprp_pyobj; | |
1245 | #define GPRP_PRP(o) (((gprp_pyobj *)(o))->prp) | |
1246 | #define GPRP_CTX(o) (((gprp_pyobj *)(o)) + 1) | |
1247 | ||
1248 | typedef struct prp { | |
1249 | const prpinfo *prp; | |
1250 | void *ctx; | |
1251 | } prp; | |
1252 | ||
1253 | static PyObject *gprp_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
1254 | { | |
1255 | char *kwlist[] = { "key", 0 }; | |
1256 | char *k; | |
1257 | int sz; | |
1258 | const prpinfo *prp = GCPRP_PRP(ty); | |
1259 | PyObject *me; | |
1260 | ||
1261 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &sz)) | |
1262 | goto end; | |
1263 | if (keysz(sz, prp->keysz) != sz) VALERR("bad key length"); | |
1264 | me = (PyObject *)ty->tp_alloc(ty, 0); | |
1265 | GPRP_PRP(me) = prp; | |
1266 | prp->init(GPRP_CTX(me), k, sz); | |
1267 | Py_INCREF(me); | |
1268 | return (me); | |
1269 | end: | |
b2687a0a | 1270 | return (0); |
03ed9abb MW |
1271 | } |
1272 | ||
1273 | static void gprp_pydealloc(PyObject *me) | |
1274 | { Py_DECREF(me->ob_type); FREEOBJ(me); } | |
1275 | ||
1276 | static PyObject *gcprp_pywrap(const prpinfo *prp) | |
1277 | { | |
1278 | gcprp_pyobj *g = newtype(gcprp_pytype, 0, prp->name); | |
1279 | g->prp = prp; | |
24b3d57b MW |
1280 | g->ty.ht_type.tp_basicsize = sizeof(gprp_pyobj) + prp->ctxsz; |
1281 | g->ty.ht_type.tp_base = gprp_pytype; | |
03ed9abb | 1282 | Py_INCREF(gprp_pytype); |
24b3d57b MW |
1283 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
1284 | Py_TPFLAGS_BASETYPE | | |
1285 | Py_TPFLAGS_HEAPTYPE); | |
1286 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
1287 | g->ty.ht_type.tp_free = 0; | |
1288 | g->ty.ht_type.tp_new = gprp_pynew; | |
dc075750 | 1289 | typeready(&g->ty.ht_type); |
03ed9abb MW |
1290 | return ((PyObject *)g); |
1291 | } | |
1292 | ||
1293 | static PyObject *gcpget_name(PyObject *me, void *hunoz) | |
1294 | { return (PyString_FromString(GCPRP_PRP(me)->name)); } | |
1295 | static PyObject *gcpget_keysz(PyObject *me, void *hunoz) | |
1296 | { return (keysz_pywrap(GCPRP_PRP(me)->keysz)); } | |
1297 | static PyObject *gcpget_blksz(PyObject *me, void *hunoz) | |
1298 | { return (PyInt_FromLong(GCPRP_PRP(me)->blksz)); } | |
1299 | ||
1300 | static PyObject *gpmeth_encrypt(PyObject *me, PyObject *arg) | |
1301 | { | |
1302 | char *p; | |
1303 | int n; | |
1304 | PyObject *rc = 0; | |
1305 | ||
1306 | if (!PyArg_ParseTuple(arg, "s#:encrypt", &p, &n)) goto end; | |
1307 | if (n != GPRP_PRP(me)->blksz) VALERR("incorrect block length"); | |
1308 | rc = bytestring_pywrap(0, n); | |
1309 | GPRP_PRP(me)->eblk(GPRP_CTX(me), p, PyString_AS_STRING(rc)); | |
1310 | end: | |
1311 | return (rc); | |
1312 | } | |
1313 | ||
1314 | static PyObject *gpmeth_decrypt(PyObject *me, PyObject *arg) | |
1315 | { | |
1316 | char *p; | |
1317 | int n; | |
1318 | PyObject *rc = 0; | |
1319 | ||
1320 | if (!PyArg_ParseTuple(arg, "s#:decrypt", &p, &n)) goto end; | |
1321 | if (n != GPRP_PRP(me)->blksz) VALERR("incorrect block length"); | |
1322 | rc = bytestring_pywrap(0, n); | |
1323 | GPRP_PRP(me)->dblk(GPRP_CTX(me), p, PyString_AS_STRING(rc)); | |
1324 | end: | |
1325 | return (rc); | |
1326 | } | |
1327 | ||
1328 | static PyGetSetDef gcprp_pygetset[] = { | |
1329 | #define GETSETNAME(op, name) gcp##op##_##name | |
1330 | GET (keysz, "CP.keysz -> acceptable key sizes") | |
1331 | GET (blksz, "CP.blksz -> block size") | |
1332 | GET (name, "CP.name -> name of this kind of PRP") | |
1333 | #undef GETSETNAME | |
1334 | { 0 } | |
1335 | }; | |
1336 | ||
1337 | static PyMethodDef gprp_pymethods[] = { | |
1338 | #define METHNAME(name) gpmeth_##name | |
1339 | METH (encrypt, "P.encrypt(PT) -> CT") | |
1340 | METH (decrypt, "P.decrypt(CT) -> PT") | |
1341 | #undef METHNAME | |
1342 | { 0 } | |
1343 | }; | |
1344 | ||
1345 | static PyTypeObject gcprp_pytype_skel = { | |
1346 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
c461c9b3 | 1347 | "GCPRP", /* @tp_name@ */ |
03ed9abb MW |
1348 | sizeof(gcprp_pyobj), /* @tp_basicsize@ */ |
1349 | 0, /* @tp_itemsize@ */ | |
1350 | ||
1351 | 0, /* @tp_dealloc@ */ | |
1352 | 0, /* @tp_print@ */ | |
1353 | 0, /* @tp_getattr@ */ | |
1354 | 0, /* @tp_setattr@ */ | |
1355 | 0, /* @tp_compare@ */ | |
1356 | 0, /* @tp_repr@ */ | |
1357 | 0, /* @tp_as_number@ */ | |
1358 | 0, /* @tp_as_sequence@ */ | |
1359 | 0, /* @tp_as_mapping@ */ | |
1360 | 0, /* @tp_hash@ */ | |
1361 | 0, /* @tp_call@ */ | |
1362 | 0, /* @tp_str@ */ | |
1363 | 0, /* @tp_getattro@ */ | |
1364 | 0, /* @tp_setattro@ */ | |
1365 | 0, /* @tp_as_buffer@ */ | |
1366 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1367 | Py_TPFLAGS_BASETYPE, | |
1368 | ||
1369 | /* @tp_doc@ */ | |
1370 | "Pseudorandom permutation metaclass.", | |
1371 | ||
1372 | 0, /* @tp_traverse@ */ | |
1373 | 0, /* @tp_clear@ */ | |
1374 | 0, /* @tp_richcompare@ */ | |
1375 | 0, /* @tp_weaklistoffset@ */ | |
1376 | 0, /* @tp_iter@ */ | |
1377 | 0, /* @tp_iternext@ */ | |
1378 | 0, /* @tp_methods@ */ | |
1379 | 0, /* @tp_members@ */ | |
1380 | gcprp_pygetset, /* @tp_getset@ */ | |
1381 | 0, /* @tp_base@ */ | |
1382 | 0, /* @tp_dict@ */ | |
1383 | 0, /* @tp_descr_get@ */ | |
1384 | 0, /* @tp_descr_set@ */ | |
1385 | 0, /* @tp_dictoffset@ */ | |
1386 | 0, /* @tp_init@ */ | |
1387 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1388 | abstract_pynew, /* @tp_new@ */ | |
1389 | 0, /* @tp_free@ */ | |
1390 | 0 /* @tp_is_gc@ */ | |
1391 | }; | |
1392 | ||
1393 | static PyTypeObject gprp_pytype_skel = { | |
1394 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
c461c9b3 | 1395 | "GPRP", /* @tp_name@ */ |
03ed9abb MW |
1396 | sizeof(gprp_pyobj), /* @tp_basicsize@ */ |
1397 | 0, /* @tp_itemsize@ */ | |
1398 | ||
1399 | gprp_pydealloc, /* @tp_dealloc@ */ | |
1400 | 0, /* @tp_print@ */ | |
1401 | 0, /* @tp_getattr@ */ | |
1402 | 0, /* @tp_setattr@ */ | |
1403 | 0, /* @tp_compare@ */ | |
1404 | 0, /* @tp_repr@ */ | |
1405 | 0, /* @tp_as_number@ */ | |
1406 | 0, /* @tp_as_sequence@ */ | |
1407 | 0, /* @tp_as_mapping@ */ | |
1408 | 0, /* @tp_hash@ */ | |
1409 | 0, /* @tp_call@ */ | |
1410 | 0, /* @tp_str@ */ | |
1411 | 0, /* @tp_getattro@ */ | |
1412 | 0, /* @tp_setattro@ */ | |
1413 | 0, /* @tp_as_buffer@ */ | |
1414 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1415 | Py_TPFLAGS_BASETYPE, | |
1416 | ||
1417 | /* @tp_doc@ */ | |
1418 | "Pseudorandom permutation, abstract base class.", | |
1419 | ||
1420 | 0, /* @tp_traverse@ */ | |
1421 | 0, /* @tp_clear@ */ | |
1422 | 0, /* @tp_richcompare@ */ | |
1423 | 0, /* @tp_weaklistoffset@ */ | |
1424 | 0, /* @tp_iter@ */ | |
1425 | 0, /* @tp_iternext@ */ | |
1426 | gprp_pymethods, /* @tp_methods@ */ | |
1427 | 0, /* @tp_members@ */ | |
1428 | 0, /* @tp_getset@ */ | |
1429 | 0, /* @tp_base@ */ | |
1430 | 0, /* @tp_dict@ */ | |
1431 | 0, /* @tp_descr_get@ */ | |
1432 | 0, /* @tp_descr_set@ */ | |
1433 | 0, /* @tp_dictoffset@ */ | |
1434 | 0, /* @tp_init@ */ | |
1435 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1436 | abstract_pynew, /* @tp_new@ */ | |
1437 | 0, /* @tp_free@ */ | |
1438 | 0 /* @tp_is_gc@ */ | |
1439 | }; | |
1440 | ||
d7ab1bab | 1441 | /*----- Main code ---------------------------------------------------------*/ |
1442 | ||
89157adc MW |
1443 | static PyMethodDef methods[] = { |
1444 | #define METHNAME(func) meth_##func | |
1445 | METH (_KeySZ_fromdl, "\ | |
1446 | fromdl(N) -> M: convert integer discrete log field size to work factor") | |
1447 | METH (_KeySZ_fromschnorr, "\ | |
1448 | fromschnorr(N) -> M: convert Schnorr group order to work factor") | |
1449 | METH (_KeySZ_fromif, "\ | |
1450 | fromif(N) -> M: convert integer factorization problem size to work factor") | |
1451 | METH (_KeySZ_fromec, "\ | |
1452 | fromec(N) -> M: convert elliptic curve group order to work factor") | |
1453 | METH (_KeySZ_todl, "\ | |
1454 | todl(N) -> M: convert work factor to integer discrete log field size") | |
1455 | METH (_KeySZ_toschnorr, "\ | |
1456 | toschnorr(N) -> M: convert work factor to Schnorr group order") | |
1457 | METH (_KeySZ_toif, "\ | |
1458 | toif(N) -> M: convert work factor to integer factorization problem size") | |
1459 | METH (_KeySZ_toec, "\ | |
1460 | toec(N) -> M: convert work factor to elliptic curve group order") | |
1461 | #undef METHNAME | |
1462 | { 0 } | |
1463 | }; | |
1464 | ||
d7ab1bab | 1465 | void algorithms_pyinit(void) |
1466 | { | |
1467 | INITTYPE(keysz, root); | |
1468 | INITTYPE(keyszany, keysz); | |
1469 | INITTYPE(keyszrange, keysz); | |
1470 | INITTYPE(keyszset, keysz); | |
1471 | INITTYPE(gccipher, type); | |
1472 | INITTYPE(gcipher, root); | |
1473 | INITTYPE(gchash, type); | |
1474 | INITTYPE(ghash, root); | |
1475 | INITTYPE(gcmac, type); | |
1476 | INITTYPE(gmac, type); | |
1477 | INITTYPE(gmhash, ghash); | |
03ed9abb MW |
1478 | INITTYPE(gcprp, type); |
1479 | INITTYPE(gprp, root); | |
89157adc | 1480 | addmethods(methods); |
d7ab1bab | 1481 | } |
1482 | ||
d7ab1bab | 1483 | GEN(gcciphers, cipher) |
1484 | GEN(gchashes, hash) | |
1485 | GEN(gcmacs, mac) | |
03ed9abb MW |
1486 | #define gcprp prpinfo |
1487 | GEN(gcprps, prp) | |
d7ab1bab | 1488 | |
1489 | void algorithms_pyinsert(PyObject *mod) | |
1490 | { | |
1491 | PyObject *d; | |
1492 | INSERT("KeySZ", keysz_pytype); | |
1493 | INSERT("KeySZAny", keyszany_pytype); | |
1494 | INSERT("KeySZRange", keyszrange_pytype); | |
1495 | INSERT("KeySZSet", keyszset_pytype); | |
1496 | INSERT("GCCipher", gccipher_pytype); | |
1497 | INSERT("GCipher", gcipher_pytype); | |
1498 | INSERT("gcciphers", gcciphers()); | |
1499 | INSERT("GCHash", gchash_pytype); | |
1500 | INSERT("GHash", ghash_pytype); | |
1501 | INSERT("gchashes", d = gchashes()); | |
1502 | sha_pyobj = PyDict_GetItemString(d, "sha"); Py_INCREF(sha_pyobj); | |
1503 | has160_pyobj = PyDict_GetItemString(d, "has160"); Py_INCREF(has160_pyobj); | |
1504 | INSERT("GCMAC", gcmac_pytype); | |
1505 | INSERT("GMAC", gmac_pytype); | |
1506 | INSERT("GMACHash", gmhash_pytype); | |
1507 | INSERT("gcmacs", gcmacs()); | |
03ed9abb MW |
1508 | INSERT("GCPRP", gcprp_pytype); |
1509 | INSERT("GPRP", gprp_pytype); | |
1510 | INSERT("gcprps", gcprps()); | |
d7ab1bab | 1511 | } |
1512 | ||
1513 | /*----- That's all, folks -------------------------------------------------*/ |