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Checkin, Debianized and more or less complete.
[catacomb-python] / algorithms.c
1 /* -*-c-*-
2 *
3 * $Id$
4 *
5 * Symmetric cryptography
6 *
7 * (c) 2004 Straylight/Edgeware
8 */
9
10 /*----- Licensing notice --------------------------------------------------*
11 *
12 * This file is part of the Python interface to Catacomb.
13 *
14 * Catacomb/Python is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
18 *
19 * Catacomb/Python is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with Catacomb/Python; if not, write to the Free Software Foundation,
26 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
27 */
28
29 /*----- Header files ------------------------------------------------------*/
30
31 #include "catacomb-python.h"
32 #include "algorithms.h"
33
34 /*----- Key sizes ---------------------------------------------------------*/
35
36 PyTypeObject *keysz_pytype;
37 PyTypeObject *keyszany_pytype, *keyszrange_pytype, *keyszset_pytype;
38 PyObject *sha_pyobj, *has160_pyobj;
39
40 PyObject *keysz_pywrap(const octet *k)
41 {
42 switch (k[0]) {
43 case KSZ_ANY: {
44 keysz_pyobj *o = PyObject_New(keysz_pyobj, keyszany_pytype);
45 o->dfl = k[1];
46 return ((PyObject *)o);
47 } break;
48 case KSZ_RANGE: {
49 keyszrange_pyobj *o =
50 PyObject_New(keyszrange_pyobj, keyszrange_pytype);
51 o->dfl = k[1];
52 o->min = k[2];
53 o->max = k[3];
54 o->mod = k[4];
55 if (!o->mod) o->mod = 1;
56 return ((PyObject *)o);
57 } break;
58 case KSZ_SET: {
59 keyszset_pyobj *o =
60 PyObject_New(keyszset_pyobj, keyszset_pytype);
61 int i, n;
62 o->dfl = k[1];
63 for (i = 0; k[i + 1]; i++) ;
64 n = i; o->set = PyTuple_New(n);
65 for (i = 0; i < n; i++)
66 PyTuple_SET_ITEM(o->set, i, PyInt_FromLong(k[i + 1]));
67 return ((PyObject *)o);
68 } break;
69 default:
70 abort();
71 }
72 }
73
74 static PyObject *keyszany_pynew(PyTypeObject *ty,
75 PyObject *arg, PyObject *kw)
76 {
77 char *kwlist[] = { "default", 0 };
78 int dfl;
79 keysz_pyobj *o;
80
81 if (!PyArg_ParseTupleAndKeywords(arg, kw, "i:new", kwlist, &dfl))
82 goto end;
83 if (dfl < 0) VALERR("key size cannot be negative");
84 o = (keysz_pyobj *)ty->tp_alloc(ty, 0);
85 o->dfl = dfl;
86 return ((PyObject *)o);
87 end:
88 return (0);
89 }
90
91 static PyObject *keyszrange_pynew(PyTypeObject *ty,
92 PyObject *arg, PyObject *kw)
93 {
94 char *kwlist[] = { "default", "min", "max", "mod", 0 };
95 int dfl, min = 0, max = 0, mod = 1;
96 keyszrange_pyobj *o;
97
98 if (!PyArg_ParseTupleAndKeywords(arg, kw, "i|iii:new", kwlist,
99 &dfl, &min, &max, &mod))
100 goto end;
101 if (dfl < 0 || min < 0 || max < 0)
102 VALERR("key size cannot be negative");
103 if (min > dfl || (max && dfl > max))
104 VALERR("bad key size bounds");
105 if (mod <= 0 || dfl % mod || min % mod || max % mod)
106 VALERR("bad key size modulus");
107 o = (keyszrange_pyobj *)ty->tp_alloc(ty, 0);
108 o->dfl = dfl;
109 o->min = min;
110 o->max = max;
111 o->mod = mod;
112 return ((PyObject *)o);
113 end:
114 return (0);
115 }
116
117 static PyObject *keyszset_pynew(PyTypeObject *ty,
118 PyObject *arg, PyObject *kw)
119 {
120 char *kwlist[] = { "default", "set", 0 };
121 int dfl, i, n, xx;
122 PyObject *set = 0;
123 PyObject *x = 0, *l = 0;
124 keyszset_pyobj *o = 0;
125
126 if (!PyArg_ParseTupleAndKeywords(arg, kw, "i|O:new", kwlist,
127 &dfl, &set))
128 goto end;
129 if (!set) set = PyTuple_New(0);
130 else Py_INCREF(set);
131 if (!PySequence_Check(set)) TYERR("want a sequence");
132 n = PySequence_Size(set);
133 l = PyList_New(0);
134 if (PyErr_Occurred()) goto end;
135 if (dfl < 0) VALERR("key size cannot be negative");
136 x = PyInt_FromLong(dfl);
137 PyList_Append(l, x);
138 Py_DECREF(x);
139 x = 0;
140 for (i = 0; i < n; i++) {
141 if ((x = PySequence_GetItem(set, i)) == 0) goto end;
142 xx = PyInt_AsLong(x);
143 if (PyErr_Occurred()) goto end;
144 if (xx == dfl) continue;
145 if (xx < 0) VALERR("key size cannot be negative");
146 PyList_Append(l, x);
147 Py_DECREF(x);
148 x = 0;
149 }
150 Py_DECREF(set);
151 if ((set = PySequence_Tuple(l)) == 0) goto end;
152 o = (keyszset_pyobj *)ty->tp_alloc(ty, 0);
153 o->dfl = dfl;
154 o->set = set;
155 Py_INCREF(set);
156 end:
157 Py_XDECREF(set);
158 Py_XDECREF(l);
159 Py_XDECREF(x);
160 return ((PyObject *)o);
161 }
162
163 static PyObject *kaget_min(PyObject *me, void *hunoz)
164 { return (PyInt_FromLong(0)); }
165 #define kaget_max kaget_min
166
167 static PyObject *ksget_min(PyObject *me, void *hunoz)
168 {
169 PyObject *set = ((keyszset_pyobj *)me)->set;
170 int i, n, y, x = -1;
171 n = PyTuple_Size(set);
172 for (i = 0; i < n; i++) {
173 y = PyInt_AsLong(PyTuple_GetItem(set, i));
174 if (x == -1 || y < x) x = y;
175 }
176 return (PyInt_FromLong(x));
177 }
178
179 static PyObject *ksget_max(PyObject *me, void *hunoz)
180 {
181 PyObject *set = ((keyszset_pyobj *)me)->set;
182 int i, n, y, x = -1;
183 n = PyTuple_Size(set);
184 for (i = 0; i < n; i++) {
185 y = PyInt_AsLong(PyTuple_GetItem(set, i));
186 if (y > x) x = y;
187 }
188 return (PyInt_FromLong(x));
189 }
190
191 static PyMemberDef keysz_pymembers[] = {
192 #define MEMBERSTRUCT keysz_pyobj
193 #define default dfl /* ugh! */
194 MEMBER(default, T_INT, READONLY, "KSZ.default -> default key size")
195 #undef default
196 #undef MEMBERSTRUCT
197 { 0 }
198 };
199
200 static PyGetSetDef keyszany_pygetset[] = {
201 #define GETSETNAME(op, name) ka##op##_##name
202 GET (min, "KSZ.min -> smallest allowed key size")
203 GET (max, "KSZ.min -> largest allowed key size")
204 #undef GETSETNAME
205 { 0 }
206 };
207
208 static PyMemberDef keyszrange_pymembers[] = {
209 #define MEMBERSTRUCT keyszrange_pyobj
210 MEMBER(min, T_INT, READONLY, "KSZ.min -> smallest allowed key size")
211 MEMBER(max, T_INT, READONLY, "KSZ.min -> largest allowed key size")
212 MEMBER(mod, T_INT, READONLY,
213 "KSZ.mod -> key size must be a multiple of this")
214 #undef MEMBERSTRUCT
215 { 0 }
216 };
217
218 static PyGetSetDef keyszset_pygetset[] = {
219 #define GETSETNAME(op, name) ks##op##_##name
220 GET (min, "KSZ.min -> smallest allowed key size")
221 GET (max, "KSZ.min -> largest allowed key size")
222 #undef GETSETNAME
223 { 0 }
224 };
225
226 static PyMemberDef keyszset_pymembers[] = {
227 #define MEMBERSTRUCT keyszset_pyobj
228 MEMBER(set, T_OBJECT, READONLY, "KSZ.set -> allowed key sizes")
229 #undef MEMBERSTRUCT
230 { 0 }
231 };
232
233 static PyTypeObject keysz_pytype_skel = {
234 PyObject_HEAD_INIT(0) 0, /* Header */
235 "catacomb.KeySZ", /* @tp_name@ */
236 sizeof(keysz_pyobj), /* @tp_basicsize@ */
237 0, /* @tp_itemsize@ */
238
239 0, /* @tp_dealloc@ */
240 0, /* @tp_print@ */
241 0, /* @tp_getattr@ */
242 0, /* @tp_setattr@ */
243 0, /* @tp_compare@ */
244 0, /* @tp_repr@ */
245 0, /* @tp_as_number@ */
246 0, /* @tp_as_sequence@ */
247 0, /* @tp_as_mapping@ */
248 0, /* @tp_hash@ */
249 0, /* @tp_call@ */
250 0, /* @tp_str@ */
251 0, /* @tp_getattro@ */
252 0, /* @tp_setattro@ */
253 0, /* @tp_as_buffer@ */
254 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
255 Py_TPFLAGS_BASETYPE,
256
257 /* @tp_doc@ */
258 "Key size constraints.",
259
260 0, /* @tp_traverse@ */
261 0, /* @tp_clear@ */
262 0, /* @tp_richcompare@ */
263 0, /* @tp_weaklistoffset@ */
264 0, /* @tp_iter@ */
265 0, /* @tp_iternexr@ */
266 0, /* @tp_methods@ */
267 keysz_pymembers, /* @tp_members@ */
268 0, /* @tp_getset@ */
269 0, /* @tp_base@ */
270 0, /* @tp_dict@ */
271 0, /* @tp_descr_get@ */
272 0, /* @tp_descr_set@ */
273 0, /* @tp_dictoffset@ */
274 0, /* @tp_init@ */
275 PyType_GenericAlloc, /* @tp_alloc@ */
276 abstract_pynew, /* @tp_new@ */
277 0, /* @tp_free@ */
278 0 /* @tp_is_gc@ */
279 };
280
281 static PyTypeObject keyszany_pytype_skel = {
282 PyObject_HEAD_INIT(0) 0, /* Header */
283 "catacomb.KeySZAny", /* @tp_name@ */
284 sizeof(keysz_pyobj), /* @tp_basicsize@ */
285 0, /* @tp_itemsize@ */
286
287 0, /* @tp_dealloc@ */
288 0, /* @tp_print@ */
289 0, /* @tp_getattr@ */
290 0, /* @tp_setattr@ */
291 0, /* @tp_compare@ */
292 0, /* @tp_repr@ */
293 0, /* @tp_as_number@ */
294 0, /* @tp_as_sequence@ */
295 0, /* @tp_as_mapping@ */
296 0, /* @tp_hash@ */
297 0, /* @tp_call@ */
298 0, /* @tp_str@ */
299 0, /* @tp_getattro@ */
300 0, /* @tp_setattro@ */
301 0, /* @tp_as_buffer@ */
302 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
303 Py_TPFLAGS_BASETYPE,
304
305 /* @tp_doc@ */
306 "Key size constraints. This object imposes no constraints on size.",
307
308 0, /* @tp_traverse@ */
309 0, /* @tp_clear@ */
310 0, /* @tp_richcompare@ */
311 0, /* @tp_weaklistoffset@ */
312 0, /* @tp_iter@ */
313 0, /* @tp_iternexr@ */
314 0, /* @tp_methods@ */
315 0, /* @tp_members@ */
316 keyszany_pygetset, /* @tp_getset@ */
317 0, /* @tp_base@ */
318 0, /* @tp_dict@ */
319 0, /* @tp_descr_get@ */
320 0, /* @tp_descr_set@ */
321 0, /* @tp_dictoffset@ */
322 0, /* @tp_init@ */
323 PyType_GenericAlloc, /* @tp_alloc@ */
324 keyszany_pynew, /* @tp_new@ */
325 0, /* @tp_free@ */
326 0 /* @tp_is_gc@ */
327 };
328
329 static PyTypeObject keyszrange_pytype_skel = {
330 PyObject_HEAD_INIT(0) 0, /* Header */
331 "catacomb.KeySZRange", /* @tp_name@ */
332 sizeof(keyszrange_pyobj), /* @tp_basicsize@ */
333 0, /* @tp_itemsize@ */
334
335 0, /* @tp_dealloc@ */
336 0, /* @tp_print@ */
337 0, /* @tp_getattr@ */
338 0, /* @tp_setattr@ */
339 0, /* @tp_compare@ */
340 0, /* @tp_repr@ */
341 0, /* @tp_as_number@ */
342 0, /* @tp_as_sequence@ */
343 0, /* @tp_as_mapping@ */
344 0, /* @tp_hash@ */
345 0, /* @tp_call@ */
346 0, /* @tp_str@ */
347 0, /* @tp_getattro@ */
348 0, /* @tp_setattro@ */
349 0, /* @tp_as_buffer@ */
350 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
351 Py_TPFLAGS_BASETYPE,
352
353 /* @tp_doc@ */
354 "Key size constraints. This object asserts minimum and maximum (if\n\
355 sizes, and requires the key length to be a multiple of some value.",
356
357 0, /* @tp_traverse@ */
358 0, /* @tp_clear@ */
359 0, /* @tp_richcompare@ */
360 0, /* @tp_weaklistoffset@ */
361 0, /* @tp_iter@ */
362 0, /* @tp_iternexr@ */
363 0, /* @tp_methods@ */
364 keyszrange_pymembers, /* @tp_members@ */
365 0, /* @tp_getset@ */
366 0, /* @tp_base@ */
367 0, /* @tp_dict@ */
368 0, /* @tp_descr_get@ */
369 0, /* @tp_descr_set@ */
370 0, /* @tp_dictoffset@ */
371 0, /* @tp_init@ */
372 PyType_GenericAlloc, /* @tp_alloc@ */
373 keyszrange_pynew, /* @tp_new@ */
374 0, /* @tp_free@ */
375 0 /* @tp_is_gc@ */
376 };
377
378 static PyTypeObject keyszset_pytype_skel = {
379 PyObject_HEAD_INIT(0) 0, /* Header */
380 "catacomb.KeySZSet", /* @tp_name@ */
381 sizeof(keyszset_pyobj), /* @tp_basicsize@ */
382 0, /* @tp_itemsize@ */
383
384 0, /* @tp_dealloc@ */
385 0, /* @tp_print@ */
386 0, /* @tp_getattr@ */
387 0, /* @tp_setattr@ */
388 0, /* @tp_compare@ */
389 0, /* @tp_repr@ */
390 0, /* @tp_as_number@ */
391 0, /* @tp_as_sequence@ */
392 0, /* @tp_as_mapping@ */
393 0, /* @tp_hash@ */
394 0, /* @tp_call@ */
395 0, /* @tp_str@ */
396 0, /* @tp_getattro@ */
397 0, /* @tp_setattro@ */
398 0, /* @tp_as_buffer@ */
399 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
400 Py_TPFLAGS_BASETYPE,
401
402 /* @tp_doc@ */
403 "Key size constraints. This object requires the key to be one of a\n\
404 few listed sizes.",
405
406 0, /* @tp_traverse@ */
407 0, /* @tp_clear@ */
408 0, /* @tp_richcompare@ */
409 0, /* @tp_weaklistoffset@ */
410 0, /* @tp_iter@ */
411 0, /* @tp_iternexr@ */
412 0, /* @tp_methods@ */
413 keyszset_pymembers, /* @tp_members@ */
414 keyszset_pygetset, /* @tp_getset@ */
415 0, /* @tp_base@ */
416 0, /* @tp_dict@ */
417 0, /* @tp_descr_get@ */
418 0, /* @tp_descr_set@ */
419 0, /* @tp_dictoffset@ */
420 0, /* @tp_init@ */
421 PyType_GenericAlloc, /* @tp_alloc@ */
422 keyszset_pynew, /* @tp_new@ */
423 0, /* @tp_free@ */
424 0 /* @tp_is_gc@ */
425 };
426
427 /*----- Symmetric encryption ----------------------------------------------*/
428
429 PyTypeObject *gccipher_pytype, *gcipher_pytype;
430
431 CONVFUNC(gccipher, gccipher *, GCCIPHER_CC)
432 CONVFUNC(gcipher, gcipher *, GCIPHER_C)
433
434 PyObject *gcipher_pywrap(PyObject *cobj, gcipher *c, unsigned f)
435 {
436 gcipher_pyobj *g;
437 if (!cobj) cobj = gccipher_pywrap((/*unconst*/ gccipher *)GC_CLASS(c));
438 else Py_INCREF(cobj);
439 g = PyObject_NEW(gcipher_pyobj, (PyTypeObject *)cobj);
440 g->c = c;
441 g->f = f;
442 return ((PyObject *)g);
443 }
444
445 static PyObject *gcipher_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
446 {
447 char *kwlist[] = { "k", 0 };
448 char *k;
449 int sz;
450
451 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &sz))
452 goto end;
453 if (keysz(sz, GCCIPHER_CC(ty)->keysz) != sz) VALERR("bad key length");
454 return (gcipher_pywrap((PyObject *)ty,
455 GC_INIT(GCCIPHER_CC(ty), k, sz),
456 f_freeme));
457 end:
458 return (0);
459 }
460
461 PyObject *gccipher_pywrap(gccipher *cc)
462 {
463 gccipher_pyobj *g = newtype(gccipher_pytype, 0, cc->name);
464 g->cc = cc;
465 g->ty.type.tp_basicsize = sizeof(gcipher_pyobj);
466 g->ty.type.tp_base = gcipher_pytype;
467 Py_INCREF(gcipher_pytype);
468 g->ty.type.tp_flags = (Py_TPFLAGS_DEFAULT |
469 Py_TPFLAGS_BASETYPE |
470 Py_TPFLAGS_HEAPTYPE);
471 g->ty.type.tp_alloc = PyType_GenericAlloc;
472 g->ty.type.tp_free = 0;
473 g->ty.type.tp_new = gcipher_pynew;
474 PyType_Ready(&g->ty.type);
475 return ((PyObject *)g);
476 }
477
478 static void gcipher_pydealloc(PyObject *me)
479 {
480 if (GCIPHER_F(me) & f_freeme)
481 GC_DESTROY(GCIPHER_C(me));
482 Py_DECREF(me->ob_type);
483 FREEOBJ(me);
484 }
485
486 static PyObject *gccget_name(PyObject *me, void *hunoz)
487 { return (PyString_FromString(GCCIPHER_CC(me)->name)); }
488
489 static PyObject *gccget_keysz(PyObject *me, void *hunoz)
490 { return (keysz_pywrap(GCCIPHER_CC(me)->keysz)); }
491
492 static PyObject *gccget_blksz(PyObject *me, void *hunoz)
493 { return (PyInt_FromLong(GCCIPHER_CC(me)->blksz)); }
494
495 static PyObject *gcmeth_encrypt(PyObject *me, PyObject *arg)
496 {
497 char *p;
498 int sz;
499 PyObject *rc = 0;
500
501 if (!PyArg_ParseTuple(arg, "s#:encrypt", &p, &sz)) return (0);
502 rc = bytestring_pywrap(0, sz);
503 GC_ENCRYPT(GCIPHER_C(me), p, PyString_AS_STRING(rc), sz);
504 return (rc);
505 }
506
507 static PyObject *gcmeth_enczero(PyObject *me, PyObject *arg)
508 {
509 char *p;
510 int sz;
511 PyObject *rc = 0;
512
513 if (!PyArg_ParseTuple(arg, "i:enczero", &sz)) return (0);
514 rc = bytestring_pywrap(0, sz);
515 p = PyString_AS_STRING(rc);
516 memset(p, 0, sz);
517 GC_ENCRYPT(GCIPHER_C(me), p, p, sz);
518 return (rc);
519 }
520
521 static PyObject *gcmeth_decrypt(PyObject *me, PyObject *arg)
522 {
523 char *p;
524 int sz;
525 PyObject *rc = 0;
526
527 if (!PyArg_ParseTuple(arg, "s#:decrypt", &p, &sz)) return (0);
528 rc = bytestring_pywrap(0, sz);
529 GC_DECRYPT(GCIPHER_C(me), p, PyString_AS_STRING(rc), sz);
530 return (rc);
531 }
532
533 static PyObject *gcmeth_deczero(PyObject *me, PyObject *arg)
534 {
535 char *p;
536 int sz;
537 PyObject *rc = 0;
538
539 if (!PyArg_ParseTuple(arg, "i:deczero", &sz)) return (0);
540 rc = bytestring_pywrap(0, sz);
541 p = PyString_AS_STRING(rc);
542 memset(p, 0, sz);
543 GC_DECRYPT(GCIPHER_C(me), p, p, sz);
544 return (rc);
545 }
546
547 static PyObject *gcmeth_setiv(PyObject *me, PyObject *arg)
548 {
549 char *p;
550 int sz;
551
552 if (!PyArg_ParseTuple(arg, "s#:setiv", &p, &sz)) goto end;
553 if (!GC_CLASS(GCIPHER_C(me))->blksz) VALERR("not a block cipher mode");
554 if (sz != GC_CLASS(GCIPHER_C(me))->blksz) VALERR("bad IV length");
555 GC_SETIV(GCIPHER_C(me), p);
556 RETURN_ME;
557 end:
558 return (0);
559 }
560
561 static PyObject *gcmeth_bdry(PyObject *me, PyObject *arg)
562 {
563 if (!PyArg_ParseTuple(arg, ":bdry")) goto end;
564 if (!GC_CLASS(GCIPHER_C(me))->blksz) VALERR("not a block cipher mode");
565 GC_BDRY(GCIPHER_C(me));
566 RETURN_ME;
567 end:
568 return (0);
569 }
570
571 static PyGetSetDef gccipher_pygetset[] = {
572 #define GETSETNAME(op, name) gcc##op##_##name
573 GET (keysz, "CC.keysz -> acceptable key sizes")
574 GET (blksz, "CC.blksz -> block size, or zero")
575 GET (name, "CC.name -> name of this kind of cipher")
576 #undef GETSETNAME
577 { 0 }
578 };
579
580 static PyMethodDef gcipher_pymethods[] = {
581 #define METHNAME(name) gcmeth_##name
582 METH (encrypt, "C.encrypt(PT) -> CT")
583 METH (enczero, "C.enczero(N) -> CT")
584 METH (decrypt, "C.decrypt(CT) -> PT")
585 METH (deczero, "C.deczero(N) -> PT")
586 METH (setiv, "C.setiv(IV)")
587 METH (bdry, "C.bdry()")
588 #undef METHNAME
589 { 0 }
590 };
591
592 static PyTypeObject gccipher_pytype_skel = {
593 PyObject_HEAD_INIT(0) 0, /* Header */
594 "catacomb.GCCipher", /* @tp_name@ */
595 sizeof(gccipher_pyobj), /* @tp_basicsize@ */
596 0, /* @tp_itemsize@ */
597
598 0, /* @tp_dealloc@ */
599 0, /* @tp_print@ */
600 0, /* @tp_getattr@ */
601 0, /* @tp_setattr@ */
602 0, /* @tp_compare@ */
603 0, /* @tp_repr@ */
604 0, /* @tp_as_number@ */
605 0, /* @tp_as_sequence@ */
606 0, /* @tp_as_mapping@ */
607 0, /* @tp_hash@ */
608 0, /* @tp_call@ */
609 0, /* @tp_str@ */
610 0, /* @tp_getattro@ */
611 0, /* @tp_setattro@ */
612 0, /* @tp_as_buffer@ */
613 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
614 Py_TPFLAGS_BASETYPE,
615
616 /* @tp_doc@ */
617 "Symmetric cipher metaclass.",
618
619 0, /* @tp_traverse@ */
620 0, /* @tp_clear@ */
621 0, /* @tp_richcompare@ */
622 0, /* @tp_weaklistoffset@ */
623 0, /* @tp_iter@ */
624 0, /* @tp_iternexr@ */
625 0, /* @tp_methods@ */
626 0, /* @tp_members@ */
627 gccipher_pygetset, /* @tp_getset@ */
628 0, /* @tp_base@ */
629 0, /* @tp_dict@ */
630 0, /* @tp_descr_get@ */
631 0, /* @tp_descr_set@ */
632 0, /* @tp_dictoffset@ */
633 0, /* @tp_init@ */
634 PyType_GenericAlloc, /* @tp_alloc@ */
635 abstract_pynew, /* @tp_new@ */
636 0, /* @tp_free@ */
637 0 /* @tp_is_gc@ */
638 };
639
640 static PyTypeObject gcipher_pytype_skel = {
641 PyObject_HEAD_INIT(0) 0, /* Header */
642 "catacomb.GCipher", /* @tp_name@ */
643 sizeof(gcipher_pyobj), /* @tp_basicsize@ */
644 0, /* @tp_itemsize@ */
645
646 gcipher_pydealloc, /* @tp_dealloc@ */
647 0, /* @tp_print@ */
648 0, /* @tp_getattr@ */
649 0, /* @tp_setattr@ */
650 0, /* @tp_compare@ */
651 0, /* @tp_repr@ */
652 0, /* @tp_as_number@ */
653 0, /* @tp_as_sequence@ */
654 0, /* @tp_as_mapping@ */
655 0, /* @tp_hash@ */
656 0, /* @tp_call@ */
657 0, /* @tp_str@ */
658 0, /* @tp_getattro@ */
659 0, /* @tp_setattro@ */
660 0, /* @tp_as_buffer@ */
661 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
662 Py_TPFLAGS_BASETYPE,
663
664 /* @tp_doc@ */
665 "Symmetric cipher, abstract base class.",
666
667 0, /* @tp_traverse@ */
668 0, /* @tp_clear@ */
669 0, /* @tp_richcompare@ */
670 0, /* @tp_weaklistoffset@ */
671 0, /* @tp_iter@ */
672 0, /* @tp_iternexr@ */
673 gcipher_pymethods, /* @tp_methods@ */
674 0, /* @tp_members@ */
675 0, /* @tp_getset@ */
676 0, /* @tp_base@ */
677 0, /* @tp_dict@ */
678 0, /* @tp_descr_get@ */
679 0, /* @tp_descr_set@ */
680 0, /* @tp_dictoffset@ */
681 0, /* @tp_init@ */
682 PyType_GenericAlloc, /* @tp_alloc@ */
683 abstract_pynew, /* @tp_new@ */
684 0, /* @tp_free@ */
685 0 /* @tp_is_gc@ */
686 };
687
688 /*----- Hash functions ----------------------------------------------------*/
689
690 PyTypeObject *gchash_pytype, *ghash_pytype;
691
692 CONVFUNC(gchash, gchash *, GCHASH_CH)
693 CONVFUNC(ghash, ghash *, GHASH_H)
694
695 static PyObject *ghash_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
696 {
697 char *kwlist[] = { 0 };
698 if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", kwlist))
699 goto end;
700 return (ghash_pywrap((PyObject *)ty, GH_INIT(GCHASH_CH(ty)), f_freeme));
701 end:
702 return (0);
703 }
704
705 PyObject *gchash_pywrap(gchash *ch)
706 {
707 gchash_pyobj *g = newtype(gchash_pytype, 0, ch->name);
708 g->ch = ch;
709 g->ty.type.tp_basicsize = sizeof(ghash_pyobj);
710 g->ty.type.tp_base = ghash_pytype;
711 Py_INCREF(ghash_pytype);
712 g->ty.type.tp_flags = (Py_TPFLAGS_DEFAULT |
713 Py_TPFLAGS_BASETYPE |
714 Py_TPFLAGS_HEAPTYPE);
715 g->ty.type.tp_alloc = PyType_GenericAlloc;
716 g->ty.type.tp_free = 0;
717 g->ty.type.tp_new = ghash_pynew;
718 PyType_Ready(&g->ty.type);
719 return ((PyObject *)g);
720 }
721
722 PyObject *ghash_pywrap(PyObject *cobj, ghash *h, unsigned f)
723 {
724 ghash_pyobj *g;
725 if (!cobj) cobj = gchash_pywrap((/*unconst*/ gchash *)GH_CLASS(h));
726 else Py_INCREF(cobj);
727 g = PyObject_NEW(ghash_pyobj, (PyTypeObject *)cobj);
728 g->h = h;
729 g->f = f;
730 return ((PyObject *)g);
731 }
732
733 static void ghash_pydealloc(PyObject *me)
734 {
735 if (GHASH_F(me) & f_freeme)
736 GH_DESTROY(GHASH_H(me));
737 Py_DECREF(me->ob_type);
738 FREEOBJ(me);
739 }
740
741 static PyObject *gchget_name(PyObject *me, void *hunoz)
742 { return (PyString_FromString(GCHASH_CH(me)->name)); }
743
744 static PyObject *gchget_hashsz(PyObject *me, void *hunoz)
745 { return (PyInt_FromLong(GCHASH_CH(me)->hashsz)); }
746
747 static PyObject *gchget_bufsz(PyObject *me, void *hunoz)
748 { return (PyInt_FromLong(GCHASH_CH(me)->bufsz)); }
749
750 static PyObject *ghmeth_hash(PyObject *me, PyObject *arg)
751 {
752 char *p;
753 int sz;
754 if (!PyArg_ParseTuple(arg, "s#:hash", &p, &sz)) return (0);
755 GH_HASH(GHASH_H(me), p, sz);
756 RETURN_ME;
757 }
758
759 static PyObject *ghmeth_done(PyObject *me, PyObject *arg)
760 {
761 ghash *g;
762 PyObject *rc;
763 if (!PyArg_ParseTuple(arg, ":done")) return (0);
764 g = GH_COPY(GHASH_H(me));
765 rc = bytestring_pywrap(0, g->ops->c->hashsz);
766 GH_DONE(g, PyString_AS_STRING(rc));
767 GH_DESTROY(g);
768 return (rc);
769 }
770
771 static PyGetSetDef gchash_pygetset[] = {
772 #define GETSETNAME(op, name) gch##op##_##name
773 GET (bufsz, "CH.bufsz -> hash buffer size, or zero")
774 GET (hashsz, "CH.blksz -> hash output size")
775 GET (name, "CH.name -> name of this kind of hash")
776 #undef GETSETNAME
777 { 0 }
778 };
779
780 #define GHMETH_HASHU_(n, W, w) \
781 static PyObject *ghmeth_hashu##w(PyObject *me, PyObject *arg) \
782 { \
783 uint##n x; \
784 if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) goto end; \
785 GH_HASHU##W(GHASH_H(me), x); \
786 RETURN_ME; \
787 end: \
788 return (0); \
789 }
790 DOUINTCONV(GHMETH_HASHU_)
791
792 #define GHMETH_HASHBUF_(n, W, w) \
793 static PyObject *ghmeth_hashbuf##w(PyObject *me, PyObject *arg) \
794 { \
795 char *p; \
796 int sz; \
797 if (!PyArg_ParseTuple(arg, "s#:hashbuf" #w, &p, &sz)) goto end; \
798 if (sz > MASK##n) TYERR("string too long"); \
799 GH_HASHBUF##W(GHASH_H(me), p, sz); \
800 RETURN_ME; \
801 end: \
802 return (0); \
803 }
804 DOUINTCONV(GHMETH_HASHBUF_)
805
806 static PyObject *ghmeth_hashstrz(PyObject *me, PyObject *arg)
807 {
808 char *p;
809 if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0);
810 GH_HASHSTRZ(GHASH_H(me), p);
811 RETURN_ME;
812 }
813
814 static PyMethodDef ghash_pymethods[] = {
815 #define METHNAME(name) ghmeth_##name
816 METH (hash, "H.hash(M)")
817 #define METHU_(n, W, w) METH(hashu##w, "H.hashu" #w "(WORD)")
818 DOUINTCONV(METHU_)
819 #define METHBUF_(n, W, w) METH(hashbuf##w, "H.hashbuf" #w "(BYTES)")
820 DOUINTCONV(METHBUF_)
821 METH (hashstrz, "H.hashstrz(STRING)")
822 METH (done, "H.done() -> HASH")
823 #undef METHNAME
824 { 0 }
825 };
826
827 static PyTypeObject gchash_pytype_skel = {
828 PyObject_HEAD_INIT(0) 0, /* Header */
829 "catacomb.GCHash", /* @tp_name@ */
830 sizeof(gchash_pyobj), /* @tp_basicsize@ */
831 0, /* @tp_itemsize@ */
832
833 0, /* @tp_dealloc@ */
834 0, /* @tp_print@ */
835 0, /* @tp_getattr@ */
836 0, /* @tp_setattr@ */
837 0, /* @tp_compare@ */
838 0, /* @tp_repr@ */
839 0, /* @tp_as_number@ */
840 0, /* @tp_as_sequence@ */
841 0, /* @tp_as_mapping@ */
842 0, /* @tp_hash@ */
843 0, /* @tp_call@ */
844 0, /* @tp_str@ */
845 0, /* @tp_getattro@ */
846 0, /* @tp_setattro@ */
847 0, /* @tp_as_buffer@ */
848 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
849 Py_TPFLAGS_BASETYPE,
850
851 /* @tp_doc@ */
852 "Hash function metaclass.",
853
854 0, /* @tp_traverse@ */
855 0, /* @tp_clear@ */
856 0, /* @tp_richcompare@ */
857 0, /* @tp_weaklistoffset@ */
858 0, /* @tp_iter@ */
859 0, /* @tp_iternexr@ */
860 0, /* @tp_methods@ */
861 0, /* @tp_members@ */
862 gchash_pygetset, /* @tp_getset@ */
863 0, /* @tp_base@ */
864 0, /* @tp_dict@ */
865 0, /* @tp_descr_get@ */
866 0, /* @tp_descr_set@ */
867 0, /* @tp_dictoffset@ */
868 0, /* @tp_init@ */
869 PyType_GenericAlloc, /* @tp_alloc@ */
870 abstract_pynew, /* @tp_new@ */
871 0, /* @tp_free@ */
872 0 /* @tp_is_gc@ */
873 };
874
875 static PyTypeObject ghash_pytype_skel = {
876 PyObject_HEAD_INIT(0) 0, /* Header */
877 "catacomb.GHash", /* @tp_name@ */
878 sizeof(ghash_pyobj), /* @tp_basicsize@ */
879 0, /* @tp_itemsize@ */
880
881 ghash_pydealloc, /* @tp_dealloc@ */
882 0, /* @tp_print@ */
883 0, /* @tp_getattr@ */
884 0, /* @tp_setattr@ */
885 0, /* @tp_compare@ */
886 0, /* @tp_repr@ */
887 0, /* @tp_as_number@ */
888 0, /* @tp_as_sequence@ */
889 0, /* @tp_as_mapping@ */
890 0, /* @tp_hash@ */
891 0, /* @tp_call@ */
892 0, /* @tp_str@ */
893 0, /* @tp_getattro@ */
894 0, /* @tp_setattro@ */
895 0, /* @tp_as_buffer@ */
896 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
897 Py_TPFLAGS_BASETYPE,
898
899 /* @tp_doc@ */
900 "Hash function, abstract base class.",
901
902 0, /* @tp_traverse@ */
903 0, /* @tp_clear@ */
904 0, /* @tp_richcompare@ */
905 0, /* @tp_weaklistoffset@ */
906 0, /* @tp_iter@ */
907 0, /* @tp_iternexr@ */
908 ghash_pymethods, /* @tp_methods@ */
909 0, /* @tp_members@ */
910 0, /* @tp_getset@ */
911 0, /* @tp_base@ */
912 0, /* @tp_dict@ */
913 0, /* @tp_descr_get@ */
914 0, /* @tp_descr_set@ */
915 0, /* @tp_dictoffset@ */
916 0, /* @tp_init@ */
917 PyType_GenericAlloc, /* @tp_alloc@ */
918 abstract_pynew, /* @tp_new@ */
919 0, /* @tp_free@ */
920 0 /* @tp_is_gc@ */
921 };
922
923 /*----- Message authentication --------------------------------------------*/
924
925 PyTypeObject *gcmac_pytype, *gmac_pytype, *gmhash_pytype;
926
927 CONVFUNC(gcmac, gcmac *, GCMAC_CM)
928 CONVFUNC(gmac, gmac *, GMAC_M)
929 CONVFUNC(gmhash, ghash *, GHASH_H)
930
931 static PyObject *gmac_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
932 {
933 char *kwlist[] = { "k", 0 };
934 char *k;
935 int sz;
936
937 if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &sz))
938 goto end;
939 if (keysz(sz, GCMAC_CM(ty)->keysz) != sz) VALERR("bad key length");
940 return (gmac_pywrap((PyObject *)ty,
941 GM_KEY(GCMAC_CM(ty), k, sz),
942 f_freeme));
943 end:
944 return (0);
945 }
946
947 static PyObject *gmhash_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
948 {
949 char *kwlist[] = { 0 };
950 ghash_pyobj *g;
951
952 if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", kwlist)) return (0);
953 g = PyObject_NEW(ghash_pyobj, ty);
954 g->h = GM_INIT(GMAC_M(ty));
955 g->f = f_freeme;
956 Py_INCREF(ty);
957 return ((PyObject *)g);
958 }
959
960 PyObject *gcmac_pywrap(gcmac *cm)
961 {
962 gcmac_pyobj *g = newtype(gcmac_pytype, 0, cm->name);
963 g->cm = cm;
964 g->ty.type.tp_basicsize = sizeof(gmac_pyobj);
965 g->ty.type.tp_base = gmac_pytype;
966 Py_INCREF(gmac_pytype);
967 g->ty.type.tp_flags = (Py_TPFLAGS_DEFAULT |
968 Py_TPFLAGS_BASETYPE |
969 Py_TPFLAGS_HEAPTYPE);
970 g->ty.type.tp_alloc = PyType_GenericAlloc;
971 g->ty.type.tp_free = 0;
972 g->ty.type.tp_new = gmac_pynew;
973 PyType_Ready(&g->ty.type);
974 return ((PyObject *)g);
975 }
976
977 PyObject *gmac_pywrap(PyObject *cobj, gmac *m, unsigned f)
978 {
979 gmac_pyobj *g;
980 if (!cobj) cobj = gcmac_pywrap((/*unconst*/ gcmac *)GM_CLASS(m));
981 else Py_INCREF(cobj);
982 g = newtype((PyTypeObject *)cobj, 0, 0);
983 g->ty.name = PyString_FromFormat("%s(keyed)", m->ops->c->name);
984 g->ty.type.tp_name = PyString_AS_STRING(g->ty.name);
985 g->ty.type.tp_base = gmhash_pytype;
986 Py_INCREF(gmac_pytype);
987 g->ty.type.tp_flags = (Py_TPFLAGS_DEFAULT |
988 Py_TPFLAGS_BASETYPE |
989 Py_TPFLAGS_HEAPTYPE);
990 g->ty.type.tp_alloc = PyType_GenericAlloc;
991 g->ty.type.tp_free = 0;
992 g->ty.type.tp_new = gmhash_pynew;
993 PyType_Ready(&g->ty.type);
994 g->m = m;
995 g->f = f;
996 return ((PyObject *)g);
997 }
998
999 static void gmac_pydealloc(PyObject *me)
1000 {
1001 if (GMAC_F(me) & f_freeme)
1002 GM_DESTROY(GMAC_M(me));
1003 Py_DECREF(me->ob_type);
1004 PyType_Type.tp_dealloc(me);
1005 }
1006
1007 static PyObject *gcmget_name(PyObject *me, void *hunoz)
1008 { return (PyString_FromString(GCMAC_CM(me)->name)); }
1009
1010 static PyObject *gcmget_keysz(PyObject *me, void *hunoz)
1011 { return (keysz_pywrap(GCMAC_CM(me)->keysz)); }
1012
1013 static PyObject *gcmget_tagsz(PyObject *me, void *hunoz)
1014 { return (PyInt_FromLong(GCMAC_CM(me)->hashsz)); }
1015
1016 static PyGetSetDef gcmac_pygetset[] = {
1017 #define GETSETNAME(op, name) gcm##op##_##name
1018 GET (keysz, "CM.keysz -> acceptable key sizes")
1019 GET (tagsz, "CM.tagsz -> MAC output size")
1020 GET (name, "CM.name -> name of this kind of MAC")
1021 #undef GETSETNAME
1022 { 0 }
1023 };
1024
1025 static PyTypeObject gcmac_pytype_skel = {
1026 PyObject_HEAD_INIT(0) 0, /* Header */
1027 "catacomb.GCMAC", /* @tp_name@ */
1028 sizeof(gchash_pyobj), /* @tp_basicsize@ */
1029 0, /* @tp_itemsize@ */
1030
1031 0, /* @tp_dealloc@ */
1032 0, /* @tp_print@ */
1033 0, /* @tp_getattr@ */
1034 0, /* @tp_setattr@ */
1035 0, /* @tp_compare@ */
1036 0, /* @tp_repr@ */
1037 0, /* @tp_as_number@ */
1038 0, /* @tp_as_sequence@ */
1039 0, /* @tp_as_mapping@ */
1040 0, /* @tp_hash@ */
1041 0, /* @tp_call@ */
1042 0, /* @tp_str@ */
1043 0, /* @tp_getattro@ */
1044 0, /* @tp_setattro@ */
1045 0, /* @tp_as_buffer@ */
1046 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1047 Py_TPFLAGS_BASETYPE,
1048
1049 /* @tp_doc@ */
1050 "Message authentication code metametaclass.",
1051
1052 0, /* @tp_traverse@ */
1053 0, /* @tp_clear@ */
1054 0, /* @tp_richcompare@ */
1055 0, /* @tp_weaklistoffset@ */
1056 0, /* @tp_iter@ */
1057 0, /* @tp_iternexr@ */
1058 0, /* @tp_methods@ */
1059 0, /* @tp_members@ */
1060 gcmac_pygetset, /* @tp_getset@ */
1061 0, /* @tp_base@ */
1062 0, /* @tp_dict@ */
1063 0, /* @tp_descr_get@ */
1064 0, /* @tp_descr_set@ */
1065 0, /* @tp_dictoffset@ */
1066 0, /* @tp_init@ */
1067 PyType_GenericAlloc, /* @tp_alloc@ */
1068 abstract_pynew, /* @tp_new@ */
1069 0, /* @tp_free@ */
1070 0 /* @tp_is_gc@ */
1071 };
1072
1073 static PyTypeObject gmac_pytype_skel = {
1074 PyObject_HEAD_INIT(0) 0, /* Header */
1075 "catacomb.GMAC", /* @tp_name@ */
1076 sizeof(gmac_pyobj), /* @tp_basicsize@ */
1077 0, /* @tp_itemsize@ */
1078
1079 gmac_pydealloc, /* @tp_dealloc@ */
1080 0, /* @tp_print@ */
1081 0, /* @tp_getattr@ */
1082 0, /* @tp_setattr@ */
1083 0, /* @tp_compare@ */
1084 0, /* @tp_repr@ */
1085 0, /* @tp_as_number@ */
1086 0, /* @tp_as_sequence@ */
1087 0, /* @tp_as_mapping@ */
1088 0, /* @tp_hash@ */
1089 0, /* @tp_call@ */
1090 0, /* @tp_str@ */
1091 0, /* @tp_getattro@ */
1092 0, /* @tp_setattro@ */
1093 0, /* @tp_as_buffer@ */
1094 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1095 Py_TPFLAGS_BASETYPE,
1096
1097 /* @tp_doc@ */
1098 "Message authentication code metaclass, abstract base class.",
1099
1100 0, /* @tp_traverse@ */
1101 0, /* @tp_clear@ */
1102 0, /* @tp_richcompare@ */
1103 0, /* @tp_weaklistoffset@ */
1104 0, /* @tp_iter@ */
1105 0, /* @tp_iternexr@ */
1106 0, /* @tp_methods@ */
1107 0, /* @tp_members@ */
1108 0, /* @tp_getset@ */
1109 0, /* @tp_base@ */
1110 0, /* @tp_dict@ */
1111 0, /* @tp_descr_get@ */
1112 0, /* @tp_descr_set@ */
1113 0, /* @tp_dictoffset@ */
1114 0, /* @tp_init@ */
1115 PyType_GenericAlloc, /* @tp_alloc@ */
1116 abstract_pynew, /* @tp_new@ */
1117 0, /* @tp_free@ */
1118 0 /* @tp_is_gc@ */
1119 };
1120
1121 static PyTypeObject gmhash_pytype_skel = {
1122 PyObject_HEAD_INIT(0) 0, /* Header */
1123 "catacomb.GMACHash", /* @tp_name@ */
1124 sizeof(ghash_pyobj), /* @tp_basicsize@ */
1125 0, /* @tp_itemsize@ */
1126
1127 ghash_pydealloc, /* @tp_dealloc@ */
1128 0, /* @tp_print@ */
1129 0, /* @tp_getattr@ */
1130 0, /* @tp_setattr@ */
1131 0, /* @tp_compare@ */
1132 0, /* @tp_repr@ */
1133 0, /* @tp_as_number@ */
1134 0, /* @tp_as_sequence@ */
1135 0, /* @tp_as_mapping@ */
1136 0, /* @tp_hash@ */
1137 0, /* @tp_call@ */
1138 0, /* @tp_str@ */
1139 0, /* @tp_getattro@ */
1140 0, /* @tp_setattro@ */
1141 0, /* @tp_as_buffer@ */
1142 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
1143 Py_TPFLAGS_BASETYPE,
1144
1145 /* @tp_doc@ */
1146 "Message authentication code, abstract base class.",
1147
1148 0, /* @tp_traverse@ */
1149 0, /* @tp_clear@ */
1150 0, /* @tp_richcompare@ */
1151 0, /* @tp_weaklistoffset@ */
1152 0, /* @tp_iter@ */
1153 0, /* @tp_iternexr@ */
1154 0, /* @tp_methods@ */
1155 0, /* @tp_members@ */
1156 0, /* @tp_getset@ */
1157 0, /* @tp_base@ */
1158 0, /* @tp_dict@ */
1159 0, /* @tp_descr_get@ */
1160 0, /* @tp_descr_set@ */
1161 0, /* @tp_dictoffset@ */
1162 0, /* @tp_init@ */
1163 PyType_GenericAlloc, /* @tp_alloc@ */
1164 abstract_pynew, /* @tp_new@ */
1165 0, /* @tp_free@ */
1166 0 /* @tp_is_gc@ */
1167 };
1168
1169 /*----- Main code ---------------------------------------------------------*/
1170
1171 void algorithms_pyinit(void)
1172 {
1173 INITTYPE(keysz, root);
1174 INITTYPE(keyszany, keysz);
1175 INITTYPE(keyszrange, keysz);
1176 INITTYPE(keyszset, keysz);
1177 INITTYPE(gccipher, type);
1178 INITTYPE(gcipher, root);
1179 INITTYPE(gchash, type);
1180 INITTYPE(ghash, root);
1181 INITTYPE(gcmac, type);
1182 INITTYPE(gmac, type);
1183 INITTYPE(gmhash, ghash);
1184 }
1185
1186 #define GEN(func, base) \
1187 static PyObject *func(void) \
1188 { \
1189 PyObject *d = PyDict_New(); \
1190 PyObject *o; \
1191 int i; \
1192 \
1193 for (i = 0; g##base##tab[i]; i++) { \
1194 o = gc##base##_pywrap((/*unconst*/ gc##base *)g##base##tab[i]); \
1195 PyDict_SetItemString(d, \
1196 (/*unconst*/ char *)g##base##tab[i]->name, \
1197 o); \
1198 Py_DECREF(o); \
1199 } \
1200 return (d); \
1201 }
1202 GEN(gcciphers, cipher)
1203 GEN(gchashes, hash)
1204 GEN(gcmacs, mac)
1205
1206 void algorithms_pyinsert(PyObject *mod)
1207 {
1208 PyObject *d;
1209 INSERT("KeySZ", keysz_pytype);
1210 INSERT("KeySZAny", keyszany_pytype);
1211 INSERT("KeySZRange", keyszrange_pytype);
1212 INSERT("KeySZSet", keyszset_pytype);
1213 INSERT("GCCipher", gccipher_pytype);
1214 INSERT("GCipher", gcipher_pytype);
1215 INSERT("gcciphers", gcciphers());
1216 INSERT("GCHash", gchash_pytype);
1217 INSERT("GHash", ghash_pytype);
1218 INSERT("gchashes", d = gchashes());
1219 sha_pyobj = PyDict_GetItemString(d, "sha"); Py_INCREF(sha_pyobj);
1220 has160_pyobj = PyDict_GetItemString(d, "has160"); Py_INCREF(has160_pyobj);
1221 INSERT("GCMAC", gcmac_pytype);
1222 INSERT("GMAC", gmac_pytype);
1223 INSERT("GMACHash", gmhash_pytype);
1224 INSERT("gcmacs", gcmacs());
1225 }
1226
1227 /*----- That's all, folks -------------------------------------------------*/
Catacomb cryptographic library -- Python bindings