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; | |
6b54260d | 476 | Py_ssize_t sz; |
d7ab1bab | 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; | |
6b54260d | 525 | Py_ssize_t sz; |
d7ab1bab | 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; | |
6b54260d | 551 | Py_ssize_t sz; |
d7ab1bab | 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; | |
6b54260d | 577 | Py_ssize_t sz; |
d7ab1bab | 578 | |
579 | if (!PyArg_ParseTuple(arg, "s#:setiv", &p, &sz)) goto end; | |
30eef666 | 580 | if (!GCIPHER_C(me)->ops->setiv) VALERR("`setiv' not supported"); |
d7ab1bab | 581 | if (!GC_CLASS(GCIPHER_C(me))->blksz) VALERR("not a block cipher mode"); |
582 | if (sz != GC_CLASS(GCIPHER_C(me))->blksz) VALERR("bad IV length"); | |
583 | GC_SETIV(GCIPHER_C(me), p); | |
584 | RETURN_ME; | |
585 | end: | |
586 | return (0); | |
587 | } | |
588 | ||
589 | static PyObject *gcmeth_bdry(PyObject *me, PyObject *arg) | |
590 | { | |
591 | if (!PyArg_ParseTuple(arg, ":bdry")) goto end; | |
30eef666 | 592 | if (!GCIPHER_C(me)->ops->bdry) VALERR("`bdry' not supported"); |
d7ab1bab | 593 | if (!GC_CLASS(GCIPHER_C(me))->blksz) VALERR("not a block cipher mode"); |
594 | GC_BDRY(GCIPHER_C(me)); | |
595 | RETURN_ME; | |
596 | end: | |
597 | return (0); | |
598 | } | |
599 | ||
600 | static PyGetSetDef gccipher_pygetset[] = { | |
601 | #define GETSETNAME(op, name) gcc##op##_##name | |
602 | GET (keysz, "CC.keysz -> acceptable key sizes") | |
603 | GET (blksz, "CC.blksz -> block size, or zero") | |
604 | GET (name, "CC.name -> name of this kind of cipher") | |
605 | #undef GETSETNAME | |
606 | { 0 } | |
607 | }; | |
608 | ||
609 | static PyMethodDef gcipher_pymethods[] = { | |
610 | #define METHNAME(name) gcmeth_##name | |
611 | METH (encrypt, "C.encrypt(PT) -> CT") | |
612 | METH (enczero, "C.enczero(N) -> CT") | |
613 | METH (decrypt, "C.decrypt(CT) -> PT") | |
614 | METH (deczero, "C.deczero(N) -> PT") | |
615 | METH (setiv, "C.setiv(IV)") | |
616 | METH (bdry, "C.bdry()") | |
617 | #undef METHNAME | |
618 | { 0 } | |
619 | }; | |
620 | ||
621 | static PyTypeObject gccipher_pytype_skel = { | |
6d4db0bf | 622 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 623 | "GCCipher", /* @tp_name@ */ |
d7ab1bab | 624 | sizeof(gccipher_pyobj), /* @tp_basicsize@ */ |
625 | 0, /* @tp_itemsize@ */ | |
626 | ||
627 | 0, /* @tp_dealloc@ */ | |
628 | 0, /* @tp_print@ */ | |
629 | 0, /* @tp_getattr@ */ | |
630 | 0, /* @tp_setattr@ */ | |
631 | 0, /* @tp_compare@ */ | |
632 | 0, /* @tp_repr@ */ | |
633 | 0, /* @tp_as_number@ */ | |
634 | 0, /* @tp_as_sequence@ */ | |
635 | 0, /* @tp_as_mapping@ */ | |
636 | 0, /* @tp_hash@ */ | |
637 | 0, /* @tp_call@ */ | |
638 | 0, /* @tp_str@ */ | |
639 | 0, /* @tp_getattro@ */ | |
640 | 0, /* @tp_setattro@ */ | |
641 | 0, /* @tp_as_buffer@ */ | |
642 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
643 | Py_TPFLAGS_BASETYPE, | |
644 | ||
645 | /* @tp_doc@ */ | |
646 | "Symmetric cipher metaclass.", | |
647 | ||
648 | 0, /* @tp_traverse@ */ | |
649 | 0, /* @tp_clear@ */ | |
650 | 0, /* @tp_richcompare@ */ | |
651 | 0, /* @tp_weaklistoffset@ */ | |
652 | 0, /* @tp_iter@ */ | |
963a6148 | 653 | 0, /* @tp_iternext@ */ |
d7ab1bab | 654 | 0, /* @tp_methods@ */ |
655 | 0, /* @tp_members@ */ | |
656 | gccipher_pygetset, /* @tp_getset@ */ | |
657 | 0, /* @tp_base@ */ | |
658 | 0, /* @tp_dict@ */ | |
659 | 0, /* @tp_descr_get@ */ | |
660 | 0, /* @tp_descr_set@ */ | |
661 | 0, /* @tp_dictoffset@ */ | |
662 | 0, /* @tp_init@ */ | |
663 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
664 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 665 | 0, /* @tp_free@ */ |
d7ab1bab | 666 | 0 /* @tp_is_gc@ */ |
667 | }; | |
668 | ||
669 | static PyTypeObject gcipher_pytype_skel = { | |
6d4db0bf | 670 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 671 | "GCipher", /* @tp_name@ */ |
d7ab1bab | 672 | sizeof(gcipher_pyobj), /* @tp_basicsize@ */ |
673 | 0, /* @tp_itemsize@ */ | |
674 | ||
675 | gcipher_pydealloc, /* @tp_dealloc@ */ | |
676 | 0, /* @tp_print@ */ | |
677 | 0, /* @tp_getattr@ */ | |
678 | 0, /* @tp_setattr@ */ | |
679 | 0, /* @tp_compare@ */ | |
680 | 0, /* @tp_repr@ */ | |
681 | 0, /* @tp_as_number@ */ | |
682 | 0, /* @tp_as_sequence@ */ | |
683 | 0, /* @tp_as_mapping@ */ | |
684 | 0, /* @tp_hash@ */ | |
685 | 0, /* @tp_call@ */ | |
686 | 0, /* @tp_str@ */ | |
687 | 0, /* @tp_getattro@ */ | |
688 | 0, /* @tp_setattro@ */ | |
689 | 0, /* @tp_as_buffer@ */ | |
690 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
691 | Py_TPFLAGS_BASETYPE, | |
692 | ||
693 | /* @tp_doc@ */ | |
694 | "Symmetric cipher, abstract base class.", | |
695 | ||
696 | 0, /* @tp_traverse@ */ | |
697 | 0, /* @tp_clear@ */ | |
698 | 0, /* @tp_richcompare@ */ | |
699 | 0, /* @tp_weaklistoffset@ */ | |
700 | 0, /* @tp_iter@ */ | |
963a6148 | 701 | 0, /* @tp_iternext@ */ |
d7ab1bab | 702 | gcipher_pymethods, /* @tp_methods@ */ |
703 | 0, /* @tp_members@ */ | |
704 | 0, /* @tp_getset@ */ | |
705 | 0, /* @tp_base@ */ | |
706 | 0, /* @tp_dict@ */ | |
707 | 0, /* @tp_descr_get@ */ | |
708 | 0, /* @tp_descr_set@ */ | |
709 | 0, /* @tp_dictoffset@ */ | |
710 | 0, /* @tp_init@ */ | |
711 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
712 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 713 | 0, /* @tp_free@ */ |
d7ab1bab | 714 | 0 /* @tp_is_gc@ */ |
715 | }; | |
716 | ||
717 | /*----- Hash functions ----------------------------------------------------*/ | |
718 | ||
719 | PyTypeObject *gchash_pytype, *ghash_pytype; | |
720 | ||
721 | CONVFUNC(gchash, gchash *, GCHASH_CH) | |
722 | CONVFUNC(ghash, ghash *, GHASH_H) | |
723 | ||
724 | static PyObject *ghash_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
725 | { | |
726 | char *kwlist[] = { 0 }; | |
727 | if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", kwlist)) | |
728 | goto end; | |
729 | return (ghash_pywrap((PyObject *)ty, GH_INIT(GCHASH_CH(ty)), f_freeme)); | |
730 | end: | |
b2687a0a | 731 | return (0); |
d7ab1bab | 732 | } |
733 | ||
734 | PyObject *gchash_pywrap(gchash *ch) | |
735 | { | |
df9f8366 | 736 | gchash_pyobj *g = newtype(gchash_pytype, 0, ch->name); |
d7ab1bab | 737 | g->ch = ch; |
24b3d57b MW |
738 | g->ty.ht_type.tp_basicsize = sizeof(ghash_pyobj); |
739 | g->ty.ht_type.tp_base = ghash_pytype; | |
d7ab1bab | 740 | Py_INCREF(ghash_pytype); |
24b3d57b MW |
741 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
742 | Py_TPFLAGS_BASETYPE | | |
743 | Py_TPFLAGS_HEAPTYPE); | |
744 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
745 | g->ty.ht_type.tp_free = 0; | |
746 | g->ty.ht_type.tp_new = ghash_pynew; | |
dc075750 | 747 | typeready(&g->ty.ht_type); |
d7ab1bab | 748 | return ((PyObject *)g); |
749 | } | |
750 | ||
751 | PyObject *ghash_pywrap(PyObject *cobj, ghash *h, unsigned f) | |
752 | { | |
753 | ghash_pyobj *g; | |
754 | if (!cobj) cobj = gchash_pywrap((/*unconst*/ gchash *)GH_CLASS(h)); | |
755 | else Py_INCREF(cobj); | |
756 | g = PyObject_NEW(ghash_pyobj, (PyTypeObject *)cobj); | |
757 | g->h = h; | |
758 | g->f = f; | |
b2687a0a | 759 | return ((PyObject *)g); |
d7ab1bab | 760 | } |
761 | ||
762 | static void ghash_pydealloc(PyObject *me) | |
763 | { | |
764 | if (GHASH_F(me) & f_freeme) | |
765 | GH_DESTROY(GHASH_H(me)); | |
766 | Py_DECREF(me->ob_type); | |
3aa33042 | 767 | FREEOBJ(me); |
d7ab1bab | 768 | } |
769 | ||
770 | static PyObject *gchget_name(PyObject *me, void *hunoz) | |
771 | { return (PyString_FromString(GCHASH_CH(me)->name)); } | |
772 | ||
773 | static PyObject *gchget_hashsz(PyObject *me, void *hunoz) | |
774 | { return (PyInt_FromLong(GCHASH_CH(me)->hashsz)); } | |
775 | ||
776 | static PyObject *gchget_bufsz(PyObject *me, void *hunoz) | |
777 | { return (PyInt_FromLong(GCHASH_CH(me)->bufsz)); } | |
778 | ||
779 | static PyObject *ghmeth_hash(PyObject *me, PyObject *arg) | |
780 | { | |
781 | char *p; | |
6b54260d | 782 | Py_ssize_t sz; |
d7ab1bab | 783 | if (!PyArg_ParseTuple(arg, "s#:hash", &p, &sz)) return (0); |
784 | GH_HASH(GHASH_H(me), p, sz); | |
785 | RETURN_ME; | |
786 | } | |
787 | ||
46e6ad89 | 788 | #define GHMETH_HASHU_(n, W, w) \ |
789 | static PyObject *ghmeth_hashu##w(PyObject *me, PyObject *arg) \ | |
790 | { \ | |
791 | uint##n x; \ | |
792 | if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) goto end; \ | |
793 | GH_HASHU##W(GHASH_H(me), x); \ | |
794 | RETURN_ME; \ | |
795 | end: \ | |
796 | return (0); \ | |
797 | } | |
798 | DOUINTCONV(GHMETH_HASHU_) | |
799 | ||
800 | #define GHMETH_HASHBUF_(n, W, w) \ | |
801 | static PyObject *ghmeth_hashbuf##w(PyObject *me, PyObject *arg) \ | |
802 | { \ | |
803 | char *p; \ | |
6b54260d | 804 | Py_ssize_t sz; \ |
46e6ad89 | 805 | if (!PyArg_ParseTuple(arg, "s#:hashbuf" #w, &p, &sz)) goto end; \ |
806 | if (sz > MASK##n) TYERR("string too long"); \ | |
807 | GH_HASHBUF##W(GHASH_H(me), p, sz); \ | |
808 | RETURN_ME; \ | |
809 | end: \ | |
810 | return (0); \ | |
811 | } | |
812 | DOUINTCONV(GHMETH_HASHBUF_) | |
813 | ||
814 | static PyObject *ghmeth_hashstrz(PyObject *me, PyObject *arg) | |
815 | { | |
816 | char *p; | |
817 | if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0); | |
818 | GH_HASHSTRZ(GHASH_H(me), p); | |
819 | RETURN_ME; | |
820 | } | |
821 | ||
07bcd768 MW |
822 | static PyObject *ghmeth_done(PyObject *me, PyObject *arg) |
823 | { | |
824 | ghash *g; | |
825 | PyObject *rc; | |
826 | if (!PyArg_ParseTuple(arg, ":done")) return (0); | |
827 | g = GH_COPY(GHASH_H(me)); | |
828 | rc = bytestring_pywrap(0, g->ops->c->hashsz); | |
829 | GH_DONE(g, PyString_AS_STRING(rc)); | |
830 | GH_DESTROY(g); | |
831 | return (rc); | |
832 | } | |
833 | ||
834 | static PyGetSetDef gchash_pygetset[] = { | |
835 | #define GETSETNAME(op, name) gch##op##_##name | |
836 | GET (bufsz, "CH.bufsz -> hash buffer size, or zero") | |
837 | GET (hashsz, "CH.hashsz -> hash output size") | |
838 | GET (name, "CH.name -> name of this kind of hash") | |
839 | #undef GETSETNAME | |
840 | { 0 } | |
841 | }; | |
842 | ||
d7ab1bab | 843 | static PyMethodDef ghash_pymethods[] = { |
844 | #define METHNAME(name) ghmeth_##name | |
845 | METH (hash, "H.hash(M)") | |
46e6ad89 | 846 | #define METHU_(n, W, w) METH(hashu##w, "H.hashu" #w "(WORD)") |
847 | DOUINTCONV(METHU_) | |
07bcd768 | 848 | #undef METHU_ |
46e6ad89 | 849 | #define METHBUF_(n, W, w) METH(hashbuf##w, "H.hashbuf" #w "(BYTES)") |
850 | DOUINTCONV(METHBUF_) | |
07bcd768 | 851 | #undef METHBUF_ |
46e6ad89 | 852 | METH (hashstrz, "H.hashstrz(STRING)") |
d7ab1bab | 853 | METH (done, "H.done() -> HASH") |
854 | #undef METHNAME | |
855 | { 0 } | |
856 | }; | |
857 | ||
858 | static PyTypeObject gchash_pytype_skel = { | |
6d4db0bf | 859 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 860 | "GCHash", /* @tp_name@ */ |
d7ab1bab | 861 | sizeof(gchash_pyobj), /* @tp_basicsize@ */ |
862 | 0, /* @tp_itemsize@ */ | |
863 | ||
864 | 0, /* @tp_dealloc@ */ | |
865 | 0, /* @tp_print@ */ | |
866 | 0, /* @tp_getattr@ */ | |
867 | 0, /* @tp_setattr@ */ | |
868 | 0, /* @tp_compare@ */ | |
869 | 0, /* @tp_repr@ */ | |
870 | 0, /* @tp_as_number@ */ | |
871 | 0, /* @tp_as_sequence@ */ | |
872 | 0, /* @tp_as_mapping@ */ | |
873 | 0, /* @tp_hash@ */ | |
874 | 0, /* @tp_call@ */ | |
875 | 0, /* @tp_str@ */ | |
876 | 0, /* @tp_getattro@ */ | |
877 | 0, /* @tp_setattro@ */ | |
878 | 0, /* @tp_as_buffer@ */ | |
879 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
880 | Py_TPFLAGS_BASETYPE, | |
881 | ||
882 | /* @tp_doc@ */ | |
883 | "Hash function metaclass.", | |
884 | ||
885 | 0, /* @tp_traverse@ */ | |
886 | 0, /* @tp_clear@ */ | |
887 | 0, /* @tp_richcompare@ */ | |
888 | 0, /* @tp_weaklistoffset@ */ | |
889 | 0, /* @tp_iter@ */ | |
963a6148 | 890 | 0, /* @tp_iternext@ */ |
d7ab1bab | 891 | 0, /* @tp_methods@ */ |
892 | 0, /* @tp_members@ */ | |
893 | gchash_pygetset, /* @tp_getset@ */ | |
894 | 0, /* @tp_base@ */ | |
895 | 0, /* @tp_dict@ */ | |
896 | 0, /* @tp_descr_get@ */ | |
897 | 0, /* @tp_descr_set@ */ | |
898 | 0, /* @tp_dictoffset@ */ | |
899 | 0, /* @tp_init@ */ | |
900 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
901 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 902 | 0, /* @tp_free@ */ |
d7ab1bab | 903 | 0 /* @tp_is_gc@ */ |
904 | }; | |
905 | ||
906 | static PyTypeObject ghash_pytype_skel = { | |
6d4db0bf | 907 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 908 | "GHash", /* @tp_name@ */ |
d7ab1bab | 909 | sizeof(ghash_pyobj), /* @tp_basicsize@ */ |
910 | 0, /* @tp_itemsize@ */ | |
911 | ||
912 | ghash_pydealloc, /* @tp_dealloc@ */ | |
913 | 0, /* @tp_print@ */ | |
914 | 0, /* @tp_getattr@ */ | |
915 | 0, /* @tp_setattr@ */ | |
916 | 0, /* @tp_compare@ */ | |
917 | 0, /* @tp_repr@ */ | |
918 | 0, /* @tp_as_number@ */ | |
919 | 0, /* @tp_as_sequence@ */ | |
920 | 0, /* @tp_as_mapping@ */ | |
921 | 0, /* @tp_hash@ */ | |
922 | 0, /* @tp_call@ */ | |
923 | 0, /* @tp_str@ */ | |
924 | 0, /* @tp_getattro@ */ | |
925 | 0, /* @tp_setattro@ */ | |
926 | 0, /* @tp_as_buffer@ */ | |
927 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
928 | Py_TPFLAGS_BASETYPE, | |
929 | ||
930 | /* @tp_doc@ */ | |
931 | "Hash function, abstract base class.", | |
932 | ||
933 | 0, /* @tp_traverse@ */ | |
934 | 0, /* @tp_clear@ */ | |
935 | 0, /* @tp_richcompare@ */ | |
936 | 0, /* @tp_weaklistoffset@ */ | |
937 | 0, /* @tp_iter@ */ | |
963a6148 | 938 | 0, /* @tp_iternext@ */ |
d7ab1bab | 939 | ghash_pymethods, /* @tp_methods@ */ |
940 | 0, /* @tp_members@ */ | |
941 | 0, /* @tp_getset@ */ | |
942 | 0, /* @tp_base@ */ | |
943 | 0, /* @tp_dict@ */ | |
944 | 0, /* @tp_descr_get@ */ | |
945 | 0, /* @tp_descr_set@ */ | |
946 | 0, /* @tp_dictoffset@ */ | |
947 | 0, /* @tp_init@ */ | |
948 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
949 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 950 | 0, /* @tp_free@ */ |
d7ab1bab | 951 | 0 /* @tp_is_gc@ */ |
952 | }; | |
953 | ||
954 | /*----- Message authentication --------------------------------------------*/ | |
955 | ||
956 | PyTypeObject *gcmac_pytype, *gmac_pytype, *gmhash_pytype; | |
957 | ||
958 | CONVFUNC(gcmac, gcmac *, GCMAC_CM) | |
959 | CONVFUNC(gmac, gmac *, GMAC_M) | |
960 | CONVFUNC(gmhash, ghash *, GHASH_H) | |
961 | ||
962 | static PyObject *gmac_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
963 | { | |
964 | char *kwlist[] = { "k", 0 }; | |
965 | char *k; | |
6b54260d | 966 | Py_ssize_t sz; |
d7ab1bab | 967 | |
968 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &sz)) | |
969 | goto end; | |
970 | if (keysz(sz, GCMAC_CM(ty)->keysz) != sz) VALERR("bad key length"); | |
971 | return (gmac_pywrap((PyObject *)ty, | |
972 | GM_KEY(GCMAC_CM(ty), k, sz), | |
973 | f_freeme)); | |
974 | end: | |
b2687a0a | 975 | return (0); |
d7ab1bab | 976 | } |
977 | ||
978 | static PyObject *gmhash_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
979 | { | |
980 | char *kwlist[] = { 0 }; | |
981 | ghash_pyobj *g; | |
982 | ||
983 | if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", kwlist)) return (0); | |
984 | g = PyObject_NEW(ghash_pyobj, ty); | |
985 | g->h = GM_INIT(GMAC_M(ty)); | |
986 | g->f = f_freeme; | |
987 | Py_INCREF(ty); | |
988 | return ((PyObject *)g); | |
989 | } | |
990 | ||
991 | PyObject *gcmac_pywrap(gcmac *cm) | |
992 | { | |
df9f8366 | 993 | gcmac_pyobj *g = newtype(gcmac_pytype, 0, cm->name); |
d7ab1bab | 994 | g->cm = cm; |
24b3d57b MW |
995 | g->ty.ht_type.tp_basicsize = sizeof(gmac_pyobj); |
996 | g->ty.ht_type.tp_base = gmac_pytype; | |
d7ab1bab | 997 | Py_INCREF(gmac_pytype); |
24b3d57b MW |
998 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
999 | Py_TPFLAGS_BASETYPE | | |
1000 | Py_TPFLAGS_HEAPTYPE); | |
1001 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
1002 | g->ty.ht_type.tp_free = 0; | |
1003 | g->ty.ht_type.tp_new = gmac_pynew; | |
dc075750 | 1004 | typeready(&g->ty.ht_type); |
d7ab1bab | 1005 | return ((PyObject *)g); |
1006 | } | |
1007 | ||
1008 | PyObject *gmac_pywrap(PyObject *cobj, gmac *m, unsigned f) | |
1009 | { | |
1010 | gmac_pyobj *g; | |
1011 | if (!cobj) cobj = gcmac_pywrap((/*unconst*/ gcmac *)GM_CLASS(m)); | |
1012 | else Py_INCREF(cobj); | |
df9f8366 | 1013 | g = newtype((PyTypeObject *)cobj, 0, 0); |
828b1388 | 1014 | g->ty.ht_type.tp_basicsize = sizeof(ghash_pyobj); |
24b3d57b MW |
1015 | g->ty.ht_name = PyString_FromFormat("%s(keyed)", m->ops->c->name); |
1016 | g->ty.ht_type.tp_name = PyString_AS_STRING(g->ty.ht_name); | |
1017 | g->ty.ht_type.tp_base = gmhash_pytype; | |
d7ab1bab | 1018 | Py_INCREF(gmac_pytype); |
24b3d57b MW |
1019 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
1020 | Py_TPFLAGS_BASETYPE | | |
1021 | Py_TPFLAGS_HEAPTYPE); | |
1022 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
1023 | g->ty.ht_type.tp_free = 0; | |
1024 | g->ty.ht_type.tp_new = gmhash_pynew; | |
dc075750 | 1025 | typeready(&g->ty.ht_type); |
d7ab1bab | 1026 | g->m = m; |
1027 | g->f = f; | |
b2687a0a | 1028 | return ((PyObject *)g); |
d7ab1bab | 1029 | } |
1030 | ||
1031 | static void gmac_pydealloc(PyObject *me) | |
1032 | { | |
1033 | if (GMAC_F(me) & f_freeme) | |
1034 | GM_DESTROY(GMAC_M(me)); | |
1035 | Py_DECREF(me->ob_type); | |
d7ab1bab | 1036 | PyType_Type.tp_dealloc(me); |
1037 | } | |
1038 | ||
1039 | static PyObject *gcmget_name(PyObject *me, void *hunoz) | |
1040 | { return (PyString_FromString(GCMAC_CM(me)->name)); } | |
1041 | ||
1042 | static PyObject *gcmget_keysz(PyObject *me, void *hunoz) | |
1043 | { return (keysz_pywrap(GCMAC_CM(me)->keysz)); } | |
1044 | ||
1045 | static PyObject *gcmget_tagsz(PyObject *me, void *hunoz) | |
1046 | { return (PyInt_FromLong(GCMAC_CM(me)->hashsz)); } | |
1047 | ||
1048 | static PyGetSetDef gcmac_pygetset[] = { | |
1049 | #define GETSETNAME(op, name) gcm##op##_##name | |
1050 | GET (keysz, "CM.keysz -> acceptable key sizes") | |
1051 | GET (tagsz, "CM.tagsz -> MAC output size") | |
1052 | GET (name, "CM.name -> name of this kind of MAC") | |
1053 | #undef GETSETNAME | |
1054 | { 0 } | |
1055 | }; | |
1056 | ||
1057 | static PyTypeObject gcmac_pytype_skel = { | |
6d4db0bf | 1058 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 1059 | "GCMAC", /* @tp_name@ */ |
d7ab1bab | 1060 | sizeof(gchash_pyobj), /* @tp_basicsize@ */ |
1061 | 0, /* @tp_itemsize@ */ | |
1062 | ||
1063 | 0, /* @tp_dealloc@ */ | |
1064 | 0, /* @tp_print@ */ | |
1065 | 0, /* @tp_getattr@ */ | |
1066 | 0, /* @tp_setattr@ */ | |
1067 | 0, /* @tp_compare@ */ | |
1068 | 0, /* @tp_repr@ */ | |
1069 | 0, /* @tp_as_number@ */ | |
1070 | 0, /* @tp_as_sequence@ */ | |
1071 | 0, /* @tp_as_mapping@ */ | |
1072 | 0, /* @tp_hash@ */ | |
1073 | 0, /* @tp_call@ */ | |
1074 | 0, /* @tp_str@ */ | |
1075 | 0, /* @tp_getattro@ */ | |
1076 | 0, /* @tp_setattro@ */ | |
1077 | 0, /* @tp_as_buffer@ */ | |
1078 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1079 | Py_TPFLAGS_BASETYPE, | |
1080 | ||
1081 | /* @tp_doc@ */ | |
1082 | "Message authentication code metametaclass.", | |
1083 | ||
1084 | 0, /* @tp_traverse@ */ | |
1085 | 0, /* @tp_clear@ */ | |
1086 | 0, /* @tp_richcompare@ */ | |
1087 | 0, /* @tp_weaklistoffset@ */ | |
1088 | 0, /* @tp_iter@ */ | |
963a6148 | 1089 | 0, /* @tp_iternext@ */ |
d7ab1bab | 1090 | 0, /* @tp_methods@ */ |
1091 | 0, /* @tp_members@ */ | |
1092 | gcmac_pygetset, /* @tp_getset@ */ | |
1093 | 0, /* @tp_base@ */ | |
1094 | 0, /* @tp_dict@ */ | |
1095 | 0, /* @tp_descr_get@ */ | |
1096 | 0, /* @tp_descr_set@ */ | |
1097 | 0, /* @tp_dictoffset@ */ | |
1098 | 0, /* @tp_init@ */ | |
1099 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1100 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 1101 | 0, /* @tp_free@ */ |
d7ab1bab | 1102 | 0 /* @tp_is_gc@ */ |
1103 | }; | |
1104 | ||
1105 | static PyTypeObject gmac_pytype_skel = { | |
6d4db0bf | 1106 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 1107 | "GMAC", /* @tp_name@ */ |
d7ab1bab | 1108 | sizeof(gmac_pyobj), /* @tp_basicsize@ */ |
1109 | 0, /* @tp_itemsize@ */ | |
1110 | ||
1111 | gmac_pydealloc, /* @tp_dealloc@ */ | |
1112 | 0, /* @tp_print@ */ | |
1113 | 0, /* @tp_getattr@ */ | |
1114 | 0, /* @tp_setattr@ */ | |
1115 | 0, /* @tp_compare@ */ | |
1116 | 0, /* @tp_repr@ */ | |
1117 | 0, /* @tp_as_number@ */ | |
1118 | 0, /* @tp_as_sequence@ */ | |
1119 | 0, /* @tp_as_mapping@ */ | |
1120 | 0, /* @tp_hash@ */ | |
1121 | 0, /* @tp_call@ */ | |
1122 | 0, /* @tp_str@ */ | |
1123 | 0, /* @tp_getattro@ */ | |
1124 | 0, /* @tp_setattro@ */ | |
1125 | 0, /* @tp_as_buffer@ */ | |
1126 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1127 | Py_TPFLAGS_BASETYPE, | |
1128 | ||
1129 | /* @tp_doc@ */ | |
1130 | "Message authentication code metaclass, abstract base class.", | |
1131 | ||
1132 | 0, /* @tp_traverse@ */ | |
1133 | 0, /* @tp_clear@ */ | |
1134 | 0, /* @tp_richcompare@ */ | |
1135 | 0, /* @tp_weaklistoffset@ */ | |
1136 | 0, /* @tp_iter@ */ | |
963a6148 | 1137 | 0, /* @tp_iternext@ */ |
d7ab1bab | 1138 | 0, /* @tp_methods@ */ |
1139 | 0, /* @tp_members@ */ | |
1140 | 0, /* @tp_getset@ */ | |
1141 | 0, /* @tp_base@ */ | |
1142 | 0, /* @tp_dict@ */ | |
1143 | 0, /* @tp_descr_get@ */ | |
1144 | 0, /* @tp_descr_set@ */ | |
1145 | 0, /* @tp_dictoffset@ */ | |
1146 | 0, /* @tp_init@ */ | |
1147 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1148 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 1149 | 0, /* @tp_free@ */ |
d7ab1bab | 1150 | 0 /* @tp_is_gc@ */ |
1151 | }; | |
1152 | ||
1153 | static PyTypeObject gmhash_pytype_skel = { | |
6d4db0bf | 1154 | PyObject_HEAD_INIT(0) 0, /* Header */ |
c461c9b3 | 1155 | "GMACHash", /* @tp_name@ */ |
d7ab1bab | 1156 | sizeof(ghash_pyobj), /* @tp_basicsize@ */ |
1157 | 0, /* @tp_itemsize@ */ | |
1158 | ||
1159 | ghash_pydealloc, /* @tp_dealloc@ */ | |
1160 | 0, /* @tp_print@ */ | |
1161 | 0, /* @tp_getattr@ */ | |
1162 | 0, /* @tp_setattr@ */ | |
1163 | 0, /* @tp_compare@ */ | |
1164 | 0, /* @tp_repr@ */ | |
1165 | 0, /* @tp_as_number@ */ | |
1166 | 0, /* @tp_as_sequence@ */ | |
1167 | 0, /* @tp_as_mapping@ */ | |
1168 | 0, /* @tp_hash@ */ | |
1169 | 0, /* @tp_call@ */ | |
1170 | 0, /* @tp_str@ */ | |
1171 | 0, /* @tp_getattro@ */ | |
1172 | 0, /* @tp_setattro@ */ | |
1173 | 0, /* @tp_as_buffer@ */ | |
1174 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1175 | Py_TPFLAGS_BASETYPE, | |
1176 | ||
1177 | /* @tp_doc@ */ | |
1178 | "Message authentication code, abstract base class.", | |
1179 | ||
1180 | 0, /* @tp_traverse@ */ | |
1181 | 0, /* @tp_clear@ */ | |
1182 | 0, /* @tp_richcompare@ */ | |
1183 | 0, /* @tp_weaklistoffset@ */ | |
1184 | 0, /* @tp_iter@ */ | |
963a6148 | 1185 | 0, /* @tp_iternext@ */ |
d7ab1bab | 1186 | 0, /* @tp_methods@ */ |
1187 | 0, /* @tp_members@ */ | |
1188 | 0, /* @tp_getset@ */ | |
1189 | 0, /* @tp_base@ */ | |
1190 | 0, /* @tp_dict@ */ | |
1191 | 0, /* @tp_descr_get@ */ | |
1192 | 0, /* @tp_descr_set@ */ | |
1193 | 0, /* @tp_dictoffset@ */ | |
1194 | 0, /* @tp_init@ */ | |
1195 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1196 | abstract_pynew, /* @tp_new@ */ | |
3aa33042 | 1197 | 0, /* @tp_free@ */ |
d7ab1bab | 1198 | 0 /* @tp_is_gc@ */ |
1199 | }; | |
1200 | ||
204d480b MW |
1201 | /*----- Special snowflake for Poly1305 ------------------------------------*/ |
1202 | ||
1203 | PyTypeObject *poly1305cls_pytype, *poly1305key_pytype, *poly1305hash_pytype; | |
1204 | ||
1205 | typedef struct poly1305key_pyobj { | |
1206 | PyHeapTypeObject ty; | |
1207 | poly1305_key k; | |
1208 | } poly1305key_pyobj; | |
1209 | ||
1210 | typedef struct poly1305hash_pyobj { | |
1211 | PyObject_HEAD | |
1212 | unsigned f; | |
1213 | #define f_mask 1u | |
1214 | poly1305_ctx ctx; | |
1215 | } poly1305hash_pyobj; | |
1216 | ||
1217 | #define P1305_F(o) (((poly1305hash_pyobj *)(o))->f) | |
1218 | #define P1305_CTX(o) (&((poly1305hash_pyobj *)(o))->ctx) | |
1219 | CONVFUNC(poly1305hash, poly1305_ctx *, P1305_CTX) | |
1220 | ||
1221 | static PyObject *poly1305hash_pynew(PyTypeObject *ty, | |
1222 | PyObject *arg, PyObject *kw) | |
1223 | { | |
1224 | char *kwlist[] = { "mask", 0 }; | |
1225 | poly1305key_pyobj *pk = (poly1305key_pyobj *)ty; | |
1226 | poly1305hash_pyobj *ph; | |
1227 | char *m = 0; | |
6b54260d | 1228 | Py_ssize_t sz; |
204d480b MW |
1229 | |
1230 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|s#:new", kwlist, &m, &sz)) | |
1231 | return (0); | |
1232 | if (m && sz != POLY1305_MASKSZ) VALERR("bad mask length"); | |
1233 | ph = PyObject_NEW(poly1305hash_pyobj, ty); | |
1234 | ph->f = 0; | |
1235 | if (m) ph->f |= f_mask; | |
1236 | poly1305_macinit(&ph->ctx, &pk->k, m); | |
1237 | Py_INCREF(ty); | |
1238 | return ((PyObject *)ph); | |
1239 | end: | |
1240 | return (0); | |
1241 | } | |
1242 | ||
1243 | static PyObject *poly1305key_pynew(PyTypeObject *ty, | |
1244 | PyObject *arg, PyObject *kw) | |
1245 | { | |
1246 | char *kwlist[] = { "k", 0 }; | |
1247 | poly1305key_pyobj *pk; | |
1248 | char *k; | |
6b54260d | 1249 | Py_ssize_t sz; |
204d480b MW |
1250 | |
1251 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &sz)) | |
1252 | goto end; | |
1253 | if (keysz(sz, poly1305_keysz) != sz) VALERR("bad key length"); | |
1254 | ||
1255 | pk = newtype(ty, 0, 0); | |
1256 | pk->ty.ht_name = PyString_FromString("poly1305(keyed)"); | |
1257 | pk->ty.ht_type.tp_basicsize = sizeof(poly1305hash_pyobj); | |
1258 | pk->ty.ht_type.tp_name = PyString_AS_STRING(pk->ty.ht_name); | |
1259 | pk->ty.ht_type.tp_base = poly1305hash_pytype; | |
1260 | Py_INCREF(poly1305key_pytype); | |
1261 | pk->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | | |
1262 | Py_TPFLAGS_BASETYPE | | |
1263 | Py_TPFLAGS_HEAPTYPE); | |
1264 | pk->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
1265 | pk->ty.ht_type.tp_free = 0; | |
1266 | pk->ty.ht_type.tp_new = poly1305hash_pynew; | |
1267 | typeready(&pk->ty.ht_type); | |
1268 | ||
1269 | poly1305_keyinit(&pk->k, k, sz); | |
1270 | return ((PyObject *)pk); | |
1271 | ||
1272 | end: | |
1273 | return (0); | |
1274 | } | |
1275 | ||
1276 | static PyObject *poly1305clsget_name(PyObject *me, void *hunoz) | |
1277 | { return (PyString_FromString("poly1305")); } | |
1278 | ||
1279 | static PyObject *poly1305clsget_keysz(PyObject *me, void *hunoz) | |
1280 | { return (keysz_pywrap(poly1305_keysz)); } | |
1281 | ||
1282 | static PyObject *poly1305clsget_masksz(PyObject *me, void *hunoz) | |
1283 | { return (PyInt_FromLong(POLY1305_MASKSZ)); } | |
1284 | ||
1285 | static PyObject *poly1305clsget_tagsz(PyObject *me, void *hunoz) | |
1286 | { return (PyInt_FromLong(POLY1305_TAGSZ)); } | |
1287 | ||
1288 | static PyObject *polymeth_copy(PyObject *me, PyObject *arg) | |
1289 | { | |
1290 | poly1305hash_pyobj *ph; | |
1291 | if (!PyArg_ParseTuple(arg, ":copy")) return (0); | |
1292 | ph = PyObject_NEW(poly1305hash_pyobj, me->ob_type); | |
1293 | poly1305_copy(&ph->ctx, P1305_CTX(me)); | |
1294 | Py_INCREF(me->ob_type); | |
1295 | return ((PyObject *)ph); | |
1296 | } | |
1297 | ||
1298 | static PyObject *polymeth_hash(PyObject *me, PyObject *arg) | |
1299 | { | |
1300 | char *p; | |
6b54260d | 1301 | Py_ssize_t sz; |
204d480b MW |
1302 | if (!PyArg_ParseTuple(arg, "s#:hash", &p, &sz)) return (0); |
1303 | poly1305_hash(P1305_CTX(me), p, sz); | |
1304 | RETURN_ME; | |
1305 | } | |
1306 | ||
1307 | #define POLYMETH_HASHU_(n, W, w) \ | |
1308 | static PyObject *polymeth_hashu##w(PyObject *me, PyObject *arg) \ | |
1309 | { \ | |
1310 | uint##n x; \ | |
1311 | octet b[SZ_##W]; \ | |
1312 | if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) goto end; \ | |
0c87e818 | 1313 | STORE##W(b, x); poly1305_hash(P1305_CTX(me), b, sizeof(b)); \ |
204d480b MW |
1314 | RETURN_ME; \ |
1315 | end: \ | |
1316 | return (0); \ | |
1317 | } | |
1318 | DOUINTCONV(POLYMETH_HASHU_) | |
1319 | ||
1320 | #define POLYMETH_HASHBUF_(n, W, w) \ | |
1321 | static PyObject *polymeth_hashbuf##w(PyObject *me, PyObject *arg) \ | |
1322 | { \ | |
1323 | char *p; \ | |
6b54260d | 1324 | Py_ssize_t sz; \ |
204d480b MW |
1325 | octet b[SZ_##W]; \ |
1326 | if (!PyArg_ParseTuple(arg, "s#:hashbuf" #w, &p, &sz)) goto end; \ | |
1327 | if (sz > MASK##n) TYERR("string too long"); \ | |
0c87e818 | 1328 | STORE##W(b, sz); poly1305_hash(P1305_CTX(me), b, sizeof(b)); \ |
204d480b MW |
1329 | poly1305_hash(P1305_CTX(me), p, sz); \ |
1330 | RETURN_ME; \ | |
1331 | end: \ | |
1332 | return (0); \ | |
1333 | } | |
1334 | DOUINTCONV(POLYMETH_HASHBUF_) | |
1335 | ||
1336 | static PyObject *polymeth_hashstrz(PyObject *me, PyObject *arg) | |
1337 | { | |
1338 | char *p; | |
1339 | if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0); | |
1340 | poly1305_hash(P1305_CTX(me), p, strlen(p) + 1); | |
1341 | RETURN_ME; | |
1342 | } | |
1343 | ||
1344 | static PyObject *polymeth_flush(PyObject *me, PyObject *arg) | |
1345 | { | |
1346 | if (!PyArg_ParseTuple(arg, ":flush")) return (0); | |
1347 | poly1305_flush(P1305_CTX(me)); | |
1348 | RETURN_ME; | |
1349 | } | |
1350 | ||
5c17375a MW |
1351 | static PyObject *polymeth_flushzero(PyObject *me, PyObject *arg) |
1352 | { | |
1353 | if (!PyArg_ParseTuple(arg, ":flushzero")) return (0); | |
1354 | poly1305_flushzero(P1305_CTX(me)); | |
1355 | RETURN_ME; | |
1356 | } | |
1357 | ||
204d480b MW |
1358 | static PyObject *polymeth_concat(PyObject *me, PyObject *arg) |
1359 | { | |
1360 | PyObject *pre, *suff; | |
1361 | if (!PyArg_ParseTuple(arg, "OO:concat", &pre, &suff)) return (0); | |
1362 | if (!PyObject_TypeCheck(pre, poly1305hash_pytype) || | |
1363 | !PyObject_TypeCheck(suff, poly1305hash_pytype)) | |
1364 | TYERR("wanted a poly1305hash"); | |
1365 | if (me->ob_type != pre->ob_type || me->ob_type != suff->ob_type) | |
1366 | TYERR("key mismatch"); | |
1367 | if (P1305_CTX(pre)->nbuf) VALERR("prefix is not block-aligned"); | |
1368 | poly1305_concat(P1305_CTX(me), P1305_CTX(pre), P1305_CTX(suff)); | |
1369 | RETURN_ME; | |
1370 | end: | |
1371 | return (0); | |
1372 | } | |
1373 | ||
1374 | static PyObject *polymeth_done(PyObject *me, PyObject *arg) | |
1375 | { | |
1376 | PyObject *rc; | |
1377 | if (!PyArg_ParseTuple(arg, ":done")) return (0); | |
1378 | if (!(P1305_F(me) & f_mask)) VALERR("no mask"); | |
1379 | rc = bytestring_pywrap(0, POLY1305_TAGSZ); | |
1380 | poly1305_done(P1305_CTX(me), PyString_AS_STRING(rc)); | |
1381 | return (rc); | |
1382 | end: | |
1383 | return (0); | |
1384 | } | |
1385 | ||
1386 | static PyGetSetDef poly1305cls_pygetset[] = { | |
1387 | #define GETSETNAME(op, name) poly1305cls##op##_##name | |
1388 | GET (keysz, "PC.keysz -> acceptable key sizes") | |
1389 | GET (masksz, "PC.masksz -> mask size") | |
1390 | GET (tagsz, "PC.tagsz -> MAC output size") | |
1391 | GET (name, "PC.name -> name of this kind of MAC") | |
1392 | #undef GETSETNAME | |
1393 | { 0 } | |
1394 | }; | |
1395 | ||
1396 | static PyMethodDef poly1305hash_pymethods[] = { | |
1397 | #define METHNAME(name) polymeth_##name | |
1398 | METH (copy, "P.copy() -> PP") | |
1399 | METH (hash, "P.hash(M)") | |
1400 | #define METHU_(n, W, w) METH(hashu##w, "P.hashu" #w "(WORD)") | |
1401 | DOUINTCONV(METHU_) | |
1402 | #undef METHU_ | |
1403 | #define METHBUF_(n, W, w) METH(hashbuf##w, "P.hashbuf" #w "(BYTES)") | |
1404 | DOUINTCONV(METHBUF_) | |
1405 | #undef METHBUF_ | |
1406 | METH (hashstrz, "P.hashstrz(STRING)") | |
1407 | METH (flush, "P.flush()") | |
5c17375a | 1408 | METH (flushzero, "P.flushzero()") |
204d480b MW |
1409 | METH (concat, "P.concat(PREFIX, SUFFIX)") |
1410 | METH (done, "P.done() -> TAG") | |
1411 | #undef METHNAME | |
1412 | { 0 } | |
1413 | }; | |
1414 | ||
1415 | static PyTypeObject poly1305cls_pytype_skel = { | |
1416 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
1417 | "Poly1305Class", /* @tp_name@ */ | |
1418 | sizeof(PyHeapTypeObject), /* @tp_basicsize@ */ | |
1419 | 0, /* @tp_itemsize@ */ | |
1420 | ||
1421 | 0, /* @tp_dealloc@ */ | |
1422 | 0, /* @tp_print@ */ | |
1423 | 0, /* @tp_getattr@ */ | |
1424 | 0, /* @tp_setattr@ */ | |
1425 | 0, /* @tp_compare@ */ | |
1426 | 0, /* @tp_repr@ */ | |
1427 | 0, /* @tp_as_number@ */ | |
1428 | 0, /* @tp_as_sequence@ */ | |
1429 | 0, /* @tp_as_mapping@ */ | |
1430 | 0, /* @tp_hash@ */ | |
1431 | 0, /* @tp_call@ */ | |
1432 | 0, /* @tp_str@ */ | |
1433 | 0, /* @tp_getattro@ */ | |
1434 | 0, /* @tp_setattro@ */ | |
1435 | 0, /* @tp_as_buffer@ */ | |
1436 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1437 | Py_TPFLAGS_BASETYPE, | |
1438 | ||
1439 | /* @tp_doc@ */ | |
1440 | "Poly1305 metametaclass. Best not to ask.", | |
1441 | ||
1442 | 0, /* @tp_traverse@ */ | |
1443 | 0, /* @tp_clear@ */ | |
1444 | 0, /* @tp_richcompare@ */ | |
1445 | 0, /* @tp_weaklistoffset@ */ | |
1446 | 0, /* @tp_iter@ */ | |
1447 | 0, /* @tp_iternext@ */ | |
1448 | 0, /* @tp_methods@ */ | |
1449 | 0, /* @tp_members@ */ | |
1450 | poly1305cls_pygetset, /* @tp_getset@ */ | |
1451 | 0, /* @tp_base@ */ | |
1452 | 0, /* @tp_dict@ */ | |
1453 | 0, /* @tp_descr_get@ */ | |
1454 | 0, /* @tp_descr_set@ */ | |
1455 | 0, /* @tp_dictoffset@ */ | |
1456 | 0, /* @tp_init@ */ | |
1457 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1458 | abstract_pynew, /* @tp_new@ */ | |
1459 | 0, /* @tp_free@ */ | |
1460 | 0 /* @tp_is_gc@ */ | |
1461 | }; | |
1462 | ||
1463 | static PyTypeObject poly1305key_pytype_skel = { | |
1464 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
1465 | "poly1305", /* @tp_name@ */ | |
1466 | sizeof(poly1305key_pyobj), /* @tp_basicsize@ */ | |
1467 | 0, /* @tp_itemsize@ */ | |
1468 | ||
1469 | 0, /* @tp_dealloc@ */ | |
1470 | 0, /* @tp_print@ */ | |
1471 | 0, /* @tp_getattr@ */ | |
1472 | 0, /* @tp_setattr@ */ | |
1473 | 0, /* @tp_compare@ */ | |
1474 | 0, /* @tp_repr@ */ | |
1475 | 0, /* @tp_as_number@ */ | |
1476 | 0, /* @tp_as_sequence@ */ | |
1477 | 0, /* @tp_as_mapping@ */ | |
1478 | 0, /* @tp_hash@ */ | |
1479 | 0, /* @tp_call@ */ | |
1480 | 0, /* @tp_str@ */ | |
1481 | 0, /* @tp_getattro@ */ | |
1482 | 0, /* @tp_setattro@ */ | |
1483 | 0, /* @tp_as_buffer@ */ | |
1484 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1485 | Py_TPFLAGS_BASETYPE, | |
1486 | ||
1487 | /* @tp_doc@ */ | |
1488 | "Poly1305 key.", | |
1489 | ||
1490 | 0, /* @tp_traverse@ */ | |
1491 | 0, /* @tp_clear@ */ | |
1492 | 0, /* @tp_richcompare@ */ | |
1493 | 0, /* @tp_weaklistoffset@ */ | |
1494 | 0, /* @tp_iter@ */ | |
1495 | 0, /* @tp_iternext@ */ | |
1496 | 0, /* @tp_methods@ */ | |
1497 | 0, /* @tp_members@ */ | |
1498 | 0, /* @tp_getset@ */ | |
1499 | 0, /* @tp_base@ */ | |
1500 | 0, /* @tp_dict@ */ | |
1501 | 0, /* @tp_descr_get@ */ | |
1502 | 0, /* @tp_descr_set@ */ | |
1503 | 0, /* @tp_dictoffset@ */ | |
1504 | 0, /* @tp_init@ */ | |
1505 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1506 | poly1305key_pynew, /* @tp_new@ */ | |
1507 | 0, /* @tp_free@ */ | |
1508 | 0 /* @tp_is_gc@ */ | |
1509 | }; | |
1510 | ||
1511 | static PyTypeObject poly1305hash_pytype_skel = { | |
1512 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
1513 | "Poly1305Hash", /* @tp_name@ */ | |
1514 | sizeof(poly1305hash_pyobj), /* @tp_basicsize@ */ | |
1515 | 0, /* @tp_itemsize@ */ | |
1516 | ||
1517 | 0, /* @tp_dealloc@ */ | |
1518 | 0, /* @tp_print@ */ | |
1519 | 0, /* @tp_getattr@ */ | |
1520 | 0, /* @tp_setattr@ */ | |
1521 | 0, /* @tp_compare@ */ | |
1522 | 0, /* @tp_repr@ */ | |
1523 | 0, /* @tp_as_number@ */ | |
1524 | 0, /* @tp_as_sequence@ */ | |
1525 | 0, /* @tp_as_mapping@ */ | |
1526 | 0, /* @tp_hash@ */ | |
1527 | 0, /* @tp_call@ */ | |
1528 | 0, /* @tp_str@ */ | |
1529 | 0, /* @tp_getattro@ */ | |
1530 | 0, /* @tp_setattro@ */ | |
1531 | 0, /* @tp_as_buffer@ */ | |
1532 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1533 | Py_TPFLAGS_BASETYPE, | |
1534 | ||
1535 | /* @tp_doc@ */ | |
1536 | "Poly1305 MAC context base class.", | |
1537 | ||
1538 | 0, /* @tp_traverse@ */ | |
1539 | 0, /* @tp_clear@ */ | |
1540 | 0, /* @tp_richcompare@ */ | |
1541 | 0, /* @tp_weaklistoffset@ */ | |
1542 | 0, /* @tp_iter@ */ | |
1543 | 0, /* @tp_iternext@ */ | |
1544 | poly1305hash_pymethods, /* @tp_methods@ */ | |
1545 | 0, /* @tp_members@ */ | |
1546 | 0, /* @tp_getset@ */ | |
1547 | 0, /* @tp_base@ */ | |
1548 | 0, /* @tp_dict@ */ | |
1549 | 0, /* @tp_descr_get@ */ | |
1550 | 0, /* @tp_descr_set@ */ | |
1551 | 0, /* @tp_dictoffset@ */ | |
1552 | 0, /* @tp_init@ */ | |
1553 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1554 | abstract_pynew, /* @tp_new@ */ | |
1555 | 0, /* @tp_free@ */ | |
1556 | 0 /* @tp_is_gc@ */ | |
1557 | }; | |
1558 | ||
a75e68c9 MW |
1559 | /*----- Special snowflake for HSalsa and HChaCha --------------------------*/ |
1560 | ||
1561 | #define DEF_HDANCE(DANCE, HDANCE, dance, hdance) \ | |
1562 | static PyObject *meth_##hdance##_prf(PyObject *me, PyObject *arg) \ | |
1563 | { \ | |
1564 | dance##_ctx dance; \ | |
1565 | char *k, *n; \ | |
6b54260d | 1566 | Py_ssize_t ksz, nsz; \ |
a75e68c9 MW |
1567 | PyObject *rc; \ |
1568 | if (!PyArg_ParseTuple(arg, "s#s#:" #hdance "_prf", \ | |
1569 | &k, &ksz, &n, &nsz)) \ | |
1570 | goto end; \ | |
0b7c311a | 1571 | if (ksz != keysz(ksz, dance##_keysz)) VALERR("bad key length"); \ |
a75e68c9 MW |
1572 | if (nsz != HDANCE##_INSZ) VALERR("bad input length"); \ |
1573 | rc = bytestring_pywrap(0, HSALSA20_OUTSZ); \ | |
1574 | dance##_init(&dance, k, ksz, 0); \ | |
1575 | hdance##_prf(&dance, n, PyString_AS_STRING(rc)); \ | |
1576 | return (rc); \ | |
1577 | end: \ | |
1578 | return (0); \ | |
1579 | } | |
1580 | ||
1581 | DEF_HDANCE(SALSA20, HSALSA20, salsa20, hsalsa20) | |
1582 | DEF_HDANCE(SALSA20, HSALSA20, salsa20, hsalsa2012) | |
1583 | DEF_HDANCE(SALSA20, HSALSA20, salsa20, hsalsa208) | |
1584 | ||
1585 | DEF_HDANCE(CHACHA, HCHACHA, chacha, hchacha20) | |
1586 | DEF_HDANCE(CHACHA, HCHACHA, chacha, hchacha12) | |
1587 | DEF_HDANCE(CHACHA, HCHACHA, chacha, hchacha8) | |
204d480b | 1588 | |
b35fdbe6 MW |
1589 | /*----- Keccak-p[1600, n] -------------------------------------------------*/ |
1590 | ||
1591 | static PyTypeObject *kxvik_pytype; | |
1592 | ||
1593 | typedef struct kxvik_pyobj { | |
1594 | PyObject_HEAD | |
1595 | keccak1600_state s; | |
1596 | unsigned n; | |
1597 | } kxvik_pyobj; | |
1598 | ||
1599 | static PyObject *kxvik_pynew(PyTypeObject *ty, | |
1600 | PyObject *arg, PyObject *kw) | |
1601 | { | |
1602 | unsigned n = 24; | |
1603 | kxvik_pyobj *rc = 0; | |
1604 | char *kwlist[] = { "nround", 0 }; | |
1605 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:new", kwlist, | |
1606 | convuint, &n)) | |
1607 | goto end; | |
1608 | rc = (kxvik_pyobj *)ty->tp_alloc(ty, 0); | |
1609 | rc->n = n; | |
1610 | keccak1600_init(&rc->s); | |
1611 | end: | |
1612 | return ((PyObject *)rc); | |
1613 | } | |
1614 | ||
1615 | static PyObject *kxvikmeth_mix(PyObject *me, PyObject *arg) | |
1616 | { | |
1617 | kxvik_pyobj *k = (kxvik_pyobj *)me; | |
1618 | kludge64 t[25]; | |
1619 | const octet *q; | |
1620 | octet buf[8]; | |
1621 | unsigned i; | |
1622 | char *p; Py_ssize_t n; | |
1623 | ||
1624 | if (!PyArg_ParseTuple(arg, "s#:mix", &p, &n)) goto end; | |
1625 | if (n > 200) VALERR("out of range"); | |
1626 | q = (const octet *)p; | |
1627 | i = 0; | |
1628 | while (n > 8) { LOAD64_L_(t[i], q); i++; q += 8; n -= 8; } | |
1629 | if (n) { | |
1630 | memcpy(buf, q, n); memset(buf + n, 0, 8 - n); | |
1631 | LOAD64_L_(t[i], buf); i++; | |
1632 | } | |
1633 | keccak1600_mix(&k->s, t, i); | |
1634 | RETURN_ME; | |
1635 | end: | |
1636 | return (0); | |
1637 | } | |
1638 | ||
1639 | static PyObject *kxvikmeth_extract(PyObject *me, PyObject *arg) | |
1640 | { | |
1641 | kxvik_pyobj *k = (kxvik_pyobj *)me; | |
1642 | PyObject *rc = 0; | |
1643 | kludge64 t[25]; | |
1644 | octet *q, buf[8]; | |
1645 | unsigned i; | |
1646 | unsigned n; | |
1647 | ||
1648 | if (!PyArg_ParseTuple(arg, "O&:mix", convuint, &n)) goto end; | |
1649 | if (n > 200) VALERR("out of range"); | |
1650 | rc = bytestring_pywrap(0, n); | |
1651 | q = (octet *)PyString_AS_STRING(rc); | |
1652 | keccak1600_extract(&k->s, t, (n + 7)/8); | |
1653 | i = 0; | |
1654 | while (n > 8) { STORE64_L_(q, t[i]); i++; q += 8; n -= 8; } | |
1655 | if (n) { STORE64_L_(buf, t[i]); memcpy(q, buf, n); } | |
1656 | end: | |
1657 | return (rc); | |
1658 | } | |
1659 | ||
1660 | static PyObject *kxvikmeth_step(PyObject *me, PyObject *arg) | |
1661 | { | |
1662 | kxvik_pyobj *k = (kxvik_pyobj *)me; | |
1663 | if (!PyArg_ParseTuple(arg, ":step")) return (0); | |
1664 | keccak1600_p(&k->s, &k->s, k->n); | |
1665 | RETURN_ME; | |
1666 | } | |
1667 | ||
1668 | static PyObject *kxvikget_nround(PyObject *me, void *hunoz) | |
1669 | { | |
1670 | kxvik_pyobj *k = (kxvik_pyobj *)me; | |
1671 | return (PyInt_FromLong(k->n)); | |
1672 | } | |
1673 | ||
1674 | static int kxvikset_nround(PyObject *me, PyObject *val, void *hunoz) | |
1675 | { | |
1676 | kxvik_pyobj *k = (kxvik_pyobj *)me; | |
1677 | unsigned n; | |
d26c1ca8 | 1678 | int rc = -1; |
b35fdbe6 | 1679 | |
d26c1ca8 MW |
1680 | if (!val) NIERR("__del__"); |
1681 | if (!convuint(val, &n)) goto end; | |
b35fdbe6 | 1682 | k->n = n; |
d26c1ca8 MW |
1683 | rc = 0; |
1684 | end: | |
1685 | return (rc); | |
b35fdbe6 MW |
1686 | } |
1687 | ||
1688 | static PyGetSetDef kxvik_pygetset[] = { | |
1689 | #define GETSETNAME(op, name) kxvik##op##_##name | |
1690 | GETSET(nround, "KECCAK.nround -> number of rounds") | |
1691 | #undef GETSETNAME | |
1692 | { 0 } | |
1693 | }; | |
1694 | ||
1695 | static PyMethodDef kxvik_pymethods[] = { | |
1696 | #define METHNAME(func) kxvikmeth_##func | |
1697 | METH (mix, "KECCAK.mix(DATA)") | |
1698 | METH (extract, "KECCAK.extract(NOCTETS)") | |
1699 | METH (step, "KECCAK.step()") | |
1700 | #undef METHNAME | |
1701 | { 0 } | |
1702 | }; | |
1703 | ||
1704 | static PyTypeObject kxvik_pytype_skel = { | |
1705 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
1706 | "Keccak1600", /* @tp_name@ */ | |
1707 | sizeof(kxvik_pyobj), /* @tp_basicsize@ */ | |
1708 | 0, /* @tp_itemsize@ */ | |
1709 | ||
1710 | 0, /* @tp_dealloc@ */ | |
1711 | 0, /* @tp_print@ */ | |
1712 | 0, /* @tp_getattr@ */ | |
1713 | 0, /* @tp_setattr@ */ | |
1714 | 0, /* @tp_compare@ */ | |
1715 | 0, /* @tp_repr@ */ | |
1716 | 0, /* @tp_as_number@ */ | |
1717 | 0, /* @tp_as_sequence@ */ | |
1718 | 0, /* @tp_as_mapping@ */ | |
1719 | 0, /* @tp_hash@ */ | |
1720 | 0, /* @tp_call@ */ | |
1721 | 0, /* @tp_str@ */ | |
1722 | 0, /* @tp_getattro@ */ | |
1723 | 0, /* @tp_setattro@ */ | |
1724 | 0, /* @tp_as_buffer@ */ | |
1725 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1726 | Py_TPFLAGS_BASETYPE, | |
1727 | ||
1728 | /* @tp_doc@ */ | |
1729 | "Keccak-p[1600, n] state.", | |
1730 | ||
1731 | 0, /* @tp_traverse@ */ | |
1732 | 0, /* @tp_clear@ */ | |
1733 | 0, /* @tp_richcompare@ */ | |
1734 | 0, /* @tp_weaklistoffset@ */ | |
1735 | 0, /* @tp_iter@ */ | |
1736 | 0, /* @tp_iternext@ */ | |
1737 | kxvik_pymethods, /* @tp_methods@ */ | |
1738 | 0, /* @tp_members@ */ | |
1739 | kxvik_pygetset, /* @tp_getset@ */ | |
1740 | 0, /* @tp_base@ */ | |
1741 | 0, /* @tp_dict@ */ | |
1742 | 0, /* @tp_descr_get@ */ | |
1743 | 0, /* @tp_descr_set@ */ | |
1744 | 0, /* @tp_dictoffset@ */ | |
1745 | 0, /* @tp_init@ */ | |
1746 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1747 | kxvik_pynew, /* @tp_new@ */ | |
1748 | 0, /* @tp_free@ */ | |
1749 | 0 /* @tp_is_gc@ */ | |
1750 | }; | |
1751 | ||
6bd22b53 MW |
1752 | static PyTypeObject *shake_pytype, *shake128_pytype, *shake256_pytype; |
1753 | ||
1754 | typedef struct shake_pyobj { | |
1755 | PyObject_HEAD | |
1756 | int st; | |
1757 | shake_ctx h; | |
1758 | } shake_pyobj; | |
1759 | ||
1760 | #define SHAKE_H(o) (&((shake_pyobj *)(o))->h) | |
1761 | #define SHAKE_ST(o) (((shake_pyobj *)(o))->st) | |
1762 | ||
1763 | static PyObject *shake_dopynew(void (*initfn)(shake_ctx *, | |
1764 | const void *, size_t, | |
1765 | const void *, size_t), | |
1766 | PyTypeObject *ty, | |
1767 | PyObject *arg, PyObject *kw) | |
1768 | { | |
1769 | shake_pyobj *rc = 0; | |
1770 | char *p = 0, *f = 0; | |
1771 | Py_ssize_t psz = 0, fsz = 0; | |
1772 | char *kwlist[] = { "perso", "func", 0 }; | |
1773 | ||
1774 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "|s#s#:new", kwlist, | |
1775 | &p, &psz, &f, &fsz)) | |
1776 | goto end; | |
1777 | rc = (shake_pyobj *)ty->tp_alloc(ty, 0); | |
1778 | initfn(&rc->h, f, fsz, p, psz); | |
1779 | rc->st = 0; | |
1780 | end: | |
1781 | return ((PyObject *)rc); | |
1782 | } | |
1783 | ||
1784 | static PyObject *shake128_pynew(PyTypeObject *ty, | |
1785 | PyObject *arg, PyObject *kw) | |
1786 | { return (shake_dopynew(cshake128_init, ty, arg, kw)); } | |
1787 | ||
1788 | static PyObject *shake256_pynew(PyTypeObject *ty, | |
1789 | PyObject *arg, PyObject *kw) | |
1790 | { return (shake_dopynew(cshake256_init, ty, arg, kw)); } | |
1791 | ||
1792 | static int shake_check(PyObject *me, int st) | |
1793 | { | |
1794 | if (SHAKE_ST(me) != st) VALERR("wrong state"); | |
1795 | return (0); | |
1796 | end: | |
1797 | return (-1); | |
1798 | } | |
1799 | ||
1800 | static PyObject *shakemeth_hash(PyObject *me, PyObject *arg) | |
1801 | { | |
1802 | char *p; | |
1803 | Py_ssize_t sz; | |
1804 | if (!PyArg_ParseTuple(arg, "s#:hash", &p, &sz)) return (0); | |
1805 | if (shake_check(me, 0)) return (0); | |
1806 | shake_hash(SHAKE_H(me), p, sz); | |
1807 | RETURN_ME; | |
1808 | } | |
1809 | ||
1810 | #define SHAKEMETH_HASHU_(n, W, w) \ | |
1811 | static PyObject *shakemeth_hashu##w(PyObject *me, PyObject *arg) \ | |
1812 | { \ | |
1813 | uint##n x; \ | |
1814 | octet b[SZ_##W]; \ | |
1815 | if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) goto end; \ | |
1816 | if (shake_check(me, 0)) goto end; \ | |
1817 | STORE##W(b, x); shake_hash(SHAKE_H(me), b, sizeof(b)); \ | |
1818 | RETURN_ME; \ | |
1819 | end: \ | |
1820 | return (0); \ | |
1821 | } | |
1822 | DOUINTCONV(SHAKEMETH_HASHU_) | |
1823 | ||
1824 | #define SHAKEMETH_HASHBUF_(n, W, w) \ | |
1825 | static PyObject *shakemeth_hashbuf##w(PyObject *me, PyObject *arg) \ | |
1826 | { \ | |
1827 | char *p; \ | |
1828 | Py_ssize_t sz; \ | |
1829 | octet b[SZ_##W]; \ | |
1830 | if (!PyArg_ParseTuple(arg, "s#:hashbuf" #w, &p, &sz)) goto end; \ | |
1831 | if (sz > MASK##n) TYERR("string too long"); \ | |
1832 | if (shake_check(me, 0)) goto end; \ | |
1833 | STORE##W(b, sz); shake_hash(SHAKE_H(me), b, sizeof(b)); \ | |
1834 | shake_hash(SHAKE_H(me), p, sz); \ | |
1835 | RETURN_ME; \ | |
1836 | end: \ | |
1837 | return (0); \ | |
1838 | } | |
1839 | DOUINTCONV(SHAKEMETH_HASHBUF_) | |
1840 | ||
1841 | static PyObject *shakemeth_hashstrz(PyObject *me, PyObject *arg) | |
1842 | { | |
1843 | char *p; | |
1844 | if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0); | |
1845 | if (shake_check(me, 0)) return (0); | |
1846 | shake_hash(SHAKE_H(me), p, strlen(p) + 1); | |
1847 | RETURN_ME; | |
1848 | } | |
1849 | ||
1850 | static PyObject *shakemeth_xof(PyObject *me, PyObject *arg) | |
1851 | { | |
1852 | if (!PyArg_ParseTuple(arg, ":xof")) goto end; | |
1853 | if (shake_check(me, 0)) goto end; | |
1854 | shake_xof(SHAKE_H(me)); | |
1855 | SHAKE_ST(me) = 1; | |
1856 | RETURN_ME; | |
1857 | end: | |
1858 | return (0); | |
1859 | } | |
1860 | ||
1861 | static PyObject *shakemeth_done(PyObject *me, PyObject *arg) | |
1862 | { | |
1863 | PyObject *rc = 0; | |
1864 | size_t n; | |
1865 | if (!PyArg_ParseTuple(arg, "O&:done", convszt, &n)) goto end; | |
1866 | if (shake_check(me, 0)) goto end; | |
1867 | rc = bytestring_pywrap(0, n); | |
1868 | shake_done(SHAKE_H(me), PyString_AS_STRING(rc), n); | |
1869 | SHAKE_ST(me) = -1; | |
1870 | end: | |
1871 | return (rc); | |
1872 | } | |
1873 | ||
1874 | static PyObject *shakemeth_copy(PyObject *me, PyObject *arg) | |
1875 | { | |
1876 | shake_pyobj *rc = 0; | |
1877 | ||
1878 | if (!PyArg_ParseTuple(arg, ":copy")) goto end; | |
1879 | rc = PyObject_NEW(shake_pyobj, me->ob_type); | |
1880 | rc->h = *SHAKE_H(me); | |
1881 | rc->st = SHAKE_ST(me); | |
1882 | end: | |
1883 | return ((PyObject *)me); | |
1884 | } | |
1885 | ||
1886 | static PyObject *shakemeth_get(PyObject *me, PyObject *arg) | |
1887 | { | |
1888 | PyObject *rc = 0; | |
1889 | size_t sz; | |
1890 | ||
1891 | if (!PyArg_ParseTuple(arg, "O&:get", convszt, &sz)) goto end; | |
1892 | if (shake_check(me, 1)) goto end; | |
1893 | rc = bytestring_pywrap(0, sz); | |
1894 | shake_get(SHAKE_H(me), PyString_AS_STRING(rc), sz); | |
1895 | end: | |
1896 | return (rc); | |
1897 | } | |
1898 | ||
1899 | static PyObject *shakemeth_mask(PyObject *me, PyObject *arg) | |
1900 | { | |
1901 | PyObject *rc = 0; | |
1902 | char *p; Py_ssize_t sz; | |
1903 | ||
1904 | if (!PyArg_ParseTuple(arg, "s#:mask", &p, &sz)) goto end; | |
1905 | if (shake_check(me, 1)) goto end; | |
1906 | rc = bytestring_pywrap(0, sz); | |
1907 | shake_mask(SHAKE_H(me), p, PyString_AS_STRING(rc), sz); | |
1908 | end: | |
1909 | return (rc); | |
1910 | } | |
1911 | ||
1912 | static PyObject *shakeget_rate(PyObject *me, void *hunoz) | |
1913 | { return (PyInt_FromLong(SHAKE_H(me)->h.r)); } | |
1914 | ||
1915 | static PyObject *shakeget_buffered(PyObject *me, void *hunoz) | |
1916 | { return (PyInt_FromLong(SHAKE_H(me)->h.n)); } | |
1917 | ||
1918 | static PyObject *shakeget_state(PyObject *me, void *hunoz) | |
1919 | { | |
1920 | int st = SHAKE_ST(me); | |
1921 | return (PyString_FromString(st == 0 ? "absorb" : | |
1922 | st == 1 ? "squeeze" : "dead")); | |
1923 | } | |
1924 | ||
1925 | static PyGetSetDef shake_pygetset[] = { | |
1926 | #define GETSETNAME(op, name) shake##op##_##name | |
1927 | GET (rate, "S.rate -> rate, in bytes") | |
1928 | GET (buffered, "S.buffered -> amount currently buffered") | |
1929 | GET (state, "S.state -> `absorb', `squeeze', `dead'") | |
1930 | #undef GETSETNAME | |
1931 | { 0 } | |
1932 | }; | |
1933 | ||
1934 | static PyMethodDef shake_pymethods[] = { | |
1935 | #define METHNAME(func) shakemeth_##func | |
1936 | METH (copy, "S.copy() -> SS") | |
1937 | METH (hash, "S.hash(M)") | |
1938 | #define METHU_(n, W, w) METH(hashu##w, "S.hashu" #w "(WORD)") | |
1939 | DOUINTCONV(METHU_) | |
1940 | #undef METHU_ | |
1941 | #define METHBUF_(n, W, w) METH(hashbuf##w, "S.hashbuf" #w "(BYTES)") | |
1942 | DOUINTCONV(METHBUF_) | |
1943 | #undef METHBUF_ | |
1944 | METH (hashstrz, "S.hashstrz(STRING)") | |
1945 | METH (xof, "S.xof()") | |
1946 | METH (done, "S.done(LEN) ->H") | |
1947 | METH (get, "S.get(LEN) -> H") | |
1948 | METH (mask, "S.mask(M) -> C") | |
1949 | #undef METHNAME | |
1950 | { 0 } | |
1951 | }; | |
1952 | ||
1953 | static PyTypeObject shake_pytype_skel = { | |
1954 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
1955 | "Shake", /* @tp_name@ */ | |
1956 | sizeof(shake_pyobj), /* @tp_basicsize@ */ | |
1957 | 0, /* @tp_itemsize@ */ | |
1958 | ||
1959 | 0, /* @tp_dealloc@ */ | |
1960 | 0, /* @tp_print@ */ | |
1961 | 0, /* @tp_getattr@ */ | |
1962 | 0, /* @tp_setattr@ */ | |
1963 | 0, /* @tp_compare@ */ | |
1964 | 0, /* @tp_repr@ */ | |
1965 | 0, /* @tp_as_number@ */ | |
1966 | 0, /* @tp_as_sequence@ */ | |
1967 | 0, /* @tp_as_mapping@ */ | |
1968 | 0, /* @tp_hash@ */ | |
1969 | 0, /* @tp_call@ */ | |
1970 | 0, /* @tp_str@ */ | |
1971 | 0, /* @tp_getattro@ */ | |
1972 | 0, /* @tp_setattro@ */ | |
1973 | 0, /* @tp_as_buffer@ */ | |
1974 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
1975 | Py_TPFLAGS_BASETYPE, | |
1976 | ||
1977 | /* @tp_doc@ */ | |
1978 | "SHAKE/cSHAKE base class.", | |
1979 | ||
1980 | 0, /* @tp_traverse@ */ | |
1981 | 0, /* @tp_clear@ */ | |
1982 | 0, /* @tp_richcompare@ */ | |
1983 | 0, /* @tp_weaklistoffset@ */ | |
1984 | 0, /* @tp_iter@ */ | |
1985 | 0, /* @tp_iternext@ */ | |
1986 | shake_pymethods, /* @tp_methods@ */ | |
1987 | 0, /* @tp_members@ */ | |
1988 | shake_pygetset, /* @tp_getset@ */ | |
1989 | 0, /* @tp_base@ */ | |
1990 | 0, /* @tp_dict@ */ | |
1991 | 0, /* @tp_descr_get@ */ | |
1992 | 0, /* @tp_descr_set@ */ | |
1993 | 0, /* @tp_dictoffset@ */ | |
1994 | 0, /* @tp_init@ */ | |
1995 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
1996 | abstract_pynew, /* @tp_new@ */ | |
1997 | 0, /* @tp_free@ */ | |
1998 | 0 /* @tp_is_gc@ */ | |
1999 | }; | |
2000 | ||
2001 | static PyTypeObject shake128_pytype_skel = { | |
2002 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
2003 | "Shake128", /* @tp_name@ */ | |
2004 | 0, /* @tp_basicsize@ */ | |
2005 | 0, /* @tp_itemsize@ */ | |
2006 | ||
2007 | 0, /* @tp_dealloc@ */ | |
2008 | 0, /* @tp_print@ */ | |
2009 | 0, /* @tp_getattr@ */ | |
2010 | 0, /* @tp_setattr@ */ | |
2011 | 0, /* @tp_compare@ */ | |
2012 | 0, /* @tp_repr@ */ | |
2013 | 0, /* @tp_as_number@ */ | |
2014 | 0, /* @tp_as_sequence@ */ | |
2015 | 0, /* @tp_as_mapping@ */ | |
2016 | 0, /* @tp_hash@ */ | |
2017 | 0, /* @tp_call@ */ | |
2018 | 0, /* @tp_str@ */ | |
2019 | 0, /* @tp_getattro@ */ | |
2020 | 0, /* @tp_setattro@ */ | |
2021 | 0, /* @tp_as_buffer@ */ | |
2022 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
2023 | Py_TPFLAGS_BASETYPE, | |
2024 | ||
2025 | /* @tp_doc@ */ | |
2026 | "SHAKE128/cSHAKE128 XOF.", | |
2027 | ||
2028 | 0, /* @tp_traverse@ */ | |
2029 | 0, /* @tp_clear@ */ | |
2030 | 0, /* @tp_richcompare@ */ | |
2031 | 0, /* @tp_weaklistoffset@ */ | |
2032 | 0, /* @tp_iter@ */ | |
2033 | 0, /* @tp_iternext@ */ | |
2034 | 0, /* @tp_methods@ */ | |
2035 | 0, /* @tp_members@ */ | |
2036 | 0, /* @tp_getset@ */ | |
2037 | 0, /* @tp_base@ */ | |
2038 | 0, /* @tp_dict@ */ | |
2039 | 0, /* @tp_descr_get@ */ | |
2040 | 0, /* @tp_descr_set@ */ | |
2041 | 0, /* @tp_dictoffset@ */ | |
2042 | 0, /* @tp_init@ */ | |
2043 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
2044 | shake128_pynew, /* @tp_new@ */ | |
2045 | 0, /* @tp_free@ */ | |
2046 | 0 /* @tp_is_gc@ */ | |
2047 | }; | |
2048 | ||
2049 | static PyTypeObject shake256_pytype_skel = { | |
2050 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
2051 | "Shake256", /* @tp_name@ */ | |
2052 | 0, /* @tp_basicsize@ */ | |
2053 | 0, /* @tp_itemsize@ */ | |
2054 | ||
2055 | 0, /* @tp_dealloc@ */ | |
2056 | 0, /* @tp_print@ */ | |
2057 | 0, /* @tp_getattr@ */ | |
2058 | 0, /* @tp_setattr@ */ | |
2059 | 0, /* @tp_compare@ */ | |
2060 | 0, /* @tp_repr@ */ | |
2061 | 0, /* @tp_as_number@ */ | |
2062 | 0, /* @tp_as_sequence@ */ | |
2063 | 0, /* @tp_as_mapping@ */ | |
2064 | 0, /* @tp_hash@ */ | |
2065 | 0, /* @tp_call@ */ | |
2066 | 0, /* @tp_str@ */ | |
2067 | 0, /* @tp_getattro@ */ | |
2068 | 0, /* @tp_setattro@ */ | |
2069 | 0, /* @tp_as_buffer@ */ | |
2070 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
2071 | Py_TPFLAGS_BASETYPE, | |
2072 | ||
2073 | /* @tp_doc@ */ | |
2074 | "SHAKE256/cSHAKE256 XOF.", | |
2075 | ||
2076 | 0, /* @tp_traverse@ */ | |
2077 | 0, /* @tp_clear@ */ | |
2078 | 0, /* @tp_richcompare@ */ | |
2079 | 0, /* @tp_weaklistoffset@ */ | |
2080 | 0, /* @tp_iter@ */ | |
2081 | 0, /* @tp_iternext@ */ | |
2082 | 0, /* @tp_methods@ */ | |
2083 | 0, /* @tp_members@ */ | |
2084 | 0, /* @tp_getset@ */ | |
2085 | 0, /* @tp_base@ */ | |
2086 | 0, /* @tp_dict@ */ | |
2087 | 0, /* @tp_descr_get@ */ | |
2088 | 0, /* @tp_descr_set@ */ | |
2089 | 0, /* @tp_dictoffset@ */ | |
2090 | 0, /* @tp_init@ */ | |
2091 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
2092 | shake256_pynew, /* @tp_new@ */ | |
2093 | 0, /* @tp_free@ */ | |
2094 | 0 /* @tp_is_gc@ */ | |
2095 | }; | |
2096 | ||
03ed9abb MW |
2097 | /*----- Pseudorandom permutations -----------------------------------------*/ |
2098 | ||
2099 | static PyTypeObject *gcprp_pytype, *gprp_pytype; | |
2100 | ||
2101 | typedef struct prpinfo { | |
2102 | const char *name; | |
2103 | const octet *keysz; | |
2104 | size_t ctxsz; | |
2105 | size_t blksz; | |
2106 | void (*init)(void *, const void *, size_t); | |
2107 | void (*eblk)(void *, const void *, void *); | |
2108 | void (*dblk)(void *, const void *, void *); | |
2109 | } prpinfo; | |
2110 | ||
2111 | #define PRP_DEF(PRE, pre) \ | |
2112 | static void pre##_prpinit(void *ctx, const void *k, size_t ksz) \ | |
2113 | { pre##_init(ctx, k, ksz); } \ | |
2114 | static void pre##_prpeblk(void *ctx, const void *in, void *out) \ | |
2115 | { \ | |
2116 | uint32 w[PRE##_BLKSZ/4]; BLKC_LOAD(PRE, w, in); \ | |
2117 | pre##_eblk(ctx, w, w); BLKC_STORE(PRE, out, w); \ | |
2118 | } \ | |
2119 | static void pre##_prpdblk(void *ctx, const void *in, void *out) \ | |
2120 | { \ | |
2121 | uint32 w[PRE##_BLKSZ/4]; BLKC_LOAD(PRE, w, in); \ | |
2122 | pre##_dblk(ctx, w, w); BLKC_STORE(PRE, out, w); \ | |
2123 | } \ | |
2124 | static const prpinfo pre##_prpinfo = { \ | |
2125 | #pre, pre##_keysz, sizeof(pre##_ctx), PRE##_BLKSZ, \ | |
2126 | pre##_prpinit, pre##_prpeblk, pre##_prpdblk \ | |
2127 | }; | |
2128 | PRPS(PRP_DEF) | |
2129 | ||
2130 | static const struct prpinfo *const gprptab[] = { | |
2131 | #define PRP_ENTRY(PRE, pre) &pre##_prpinfo, | |
2132 | PRPS(PRP_ENTRY) | |
2133 | 0 | |
b2687a0a | 2134 | }; |
03ed9abb MW |
2135 | |
2136 | typedef struct gcprp_pyobj { | |
2137 | PyHeapTypeObject ty; | |
2138 | const prpinfo *prp; | |
2139 | } gcprp_pyobj; | |
2140 | #define GCPRP_PRP(o) (((gcprp_pyobj *)(o))->prp) | |
2141 | ||
2142 | typedef struct gprp_pyobj { | |
2143 | PyObject_HEAD | |
2144 | const prpinfo *prp; | |
2145 | } gprp_pyobj; | |
2146 | #define GPRP_PRP(o) (((gprp_pyobj *)(o))->prp) | |
2147 | #define GPRP_CTX(o) (((gprp_pyobj *)(o)) + 1) | |
2148 | ||
2149 | typedef struct prp { | |
2150 | const prpinfo *prp; | |
2151 | void *ctx; | |
2152 | } prp; | |
2153 | ||
2154 | static PyObject *gprp_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
2155 | { | |
2156 | char *kwlist[] = { "key", 0 }; | |
2157 | char *k; | |
6b54260d | 2158 | Py_ssize_t sz; |
03ed9abb MW |
2159 | const prpinfo *prp = GCPRP_PRP(ty); |
2160 | PyObject *me; | |
2161 | ||
2162 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &sz)) | |
2163 | goto end; | |
2164 | if (keysz(sz, prp->keysz) != sz) VALERR("bad key length"); | |
2165 | me = (PyObject *)ty->tp_alloc(ty, 0); | |
2166 | GPRP_PRP(me) = prp; | |
2167 | prp->init(GPRP_CTX(me), k, sz); | |
2168 | Py_INCREF(me); | |
2169 | return (me); | |
2170 | end: | |
b2687a0a | 2171 | return (0); |
03ed9abb MW |
2172 | } |
2173 | ||
2174 | static void gprp_pydealloc(PyObject *me) | |
2175 | { Py_DECREF(me->ob_type); FREEOBJ(me); } | |
2176 | ||
2177 | static PyObject *gcprp_pywrap(const prpinfo *prp) | |
2178 | { | |
2179 | gcprp_pyobj *g = newtype(gcprp_pytype, 0, prp->name); | |
2180 | g->prp = prp; | |
24b3d57b MW |
2181 | g->ty.ht_type.tp_basicsize = sizeof(gprp_pyobj) + prp->ctxsz; |
2182 | g->ty.ht_type.tp_base = gprp_pytype; | |
03ed9abb | 2183 | Py_INCREF(gprp_pytype); |
24b3d57b MW |
2184 | g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT | |
2185 | Py_TPFLAGS_BASETYPE | | |
2186 | Py_TPFLAGS_HEAPTYPE); | |
2187 | g->ty.ht_type.tp_alloc = PyType_GenericAlloc; | |
2188 | g->ty.ht_type.tp_free = 0; | |
2189 | g->ty.ht_type.tp_new = gprp_pynew; | |
dc075750 | 2190 | typeready(&g->ty.ht_type); |
03ed9abb MW |
2191 | return ((PyObject *)g); |
2192 | } | |
2193 | ||
2194 | static PyObject *gcpget_name(PyObject *me, void *hunoz) | |
2195 | { return (PyString_FromString(GCPRP_PRP(me)->name)); } | |
2196 | static PyObject *gcpget_keysz(PyObject *me, void *hunoz) | |
2197 | { return (keysz_pywrap(GCPRP_PRP(me)->keysz)); } | |
2198 | static PyObject *gcpget_blksz(PyObject *me, void *hunoz) | |
2199 | { return (PyInt_FromLong(GCPRP_PRP(me)->blksz)); } | |
2200 | ||
2201 | static PyObject *gpmeth_encrypt(PyObject *me, PyObject *arg) | |
2202 | { | |
2203 | char *p; | |
6b54260d | 2204 | Py_ssize_t n; |
03ed9abb MW |
2205 | PyObject *rc = 0; |
2206 | ||
2207 | if (!PyArg_ParseTuple(arg, "s#:encrypt", &p, &n)) goto end; | |
2208 | if (n != GPRP_PRP(me)->blksz) VALERR("incorrect block length"); | |
2209 | rc = bytestring_pywrap(0, n); | |
2210 | GPRP_PRP(me)->eblk(GPRP_CTX(me), p, PyString_AS_STRING(rc)); | |
2211 | end: | |
2212 | return (rc); | |
2213 | } | |
2214 | ||
2215 | static PyObject *gpmeth_decrypt(PyObject *me, PyObject *arg) | |
2216 | { | |
2217 | char *p; | |
6b54260d | 2218 | Py_ssize_t n; |
03ed9abb MW |
2219 | PyObject *rc = 0; |
2220 | ||
2221 | if (!PyArg_ParseTuple(arg, "s#:decrypt", &p, &n)) goto end; | |
2222 | if (n != GPRP_PRP(me)->blksz) VALERR("incorrect block length"); | |
2223 | rc = bytestring_pywrap(0, n); | |
2224 | GPRP_PRP(me)->dblk(GPRP_CTX(me), p, PyString_AS_STRING(rc)); | |
2225 | end: | |
2226 | return (rc); | |
2227 | } | |
2228 | ||
2229 | static PyGetSetDef gcprp_pygetset[] = { | |
2230 | #define GETSETNAME(op, name) gcp##op##_##name | |
2231 | GET (keysz, "CP.keysz -> acceptable key sizes") | |
2232 | GET (blksz, "CP.blksz -> block size") | |
2233 | GET (name, "CP.name -> name of this kind of PRP") | |
2234 | #undef GETSETNAME | |
2235 | { 0 } | |
2236 | }; | |
2237 | ||
2238 | static PyMethodDef gprp_pymethods[] = { | |
2239 | #define METHNAME(name) gpmeth_##name | |
2240 | METH (encrypt, "P.encrypt(PT) -> CT") | |
2241 | METH (decrypt, "P.decrypt(CT) -> PT") | |
2242 | #undef METHNAME | |
2243 | { 0 } | |
2244 | }; | |
2245 | ||
2246 | static PyTypeObject gcprp_pytype_skel = { | |
2247 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
c461c9b3 | 2248 | "GCPRP", /* @tp_name@ */ |
03ed9abb MW |
2249 | sizeof(gcprp_pyobj), /* @tp_basicsize@ */ |
2250 | 0, /* @tp_itemsize@ */ | |
2251 | ||
2252 | 0, /* @tp_dealloc@ */ | |
2253 | 0, /* @tp_print@ */ | |
2254 | 0, /* @tp_getattr@ */ | |
2255 | 0, /* @tp_setattr@ */ | |
2256 | 0, /* @tp_compare@ */ | |
2257 | 0, /* @tp_repr@ */ | |
2258 | 0, /* @tp_as_number@ */ | |
2259 | 0, /* @tp_as_sequence@ */ | |
2260 | 0, /* @tp_as_mapping@ */ | |
2261 | 0, /* @tp_hash@ */ | |
2262 | 0, /* @tp_call@ */ | |
2263 | 0, /* @tp_str@ */ | |
2264 | 0, /* @tp_getattro@ */ | |
2265 | 0, /* @tp_setattro@ */ | |
2266 | 0, /* @tp_as_buffer@ */ | |
2267 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
2268 | Py_TPFLAGS_BASETYPE, | |
2269 | ||
2270 | /* @tp_doc@ */ | |
2271 | "Pseudorandom permutation metaclass.", | |
2272 | ||
2273 | 0, /* @tp_traverse@ */ | |
2274 | 0, /* @tp_clear@ */ | |
2275 | 0, /* @tp_richcompare@ */ | |
2276 | 0, /* @tp_weaklistoffset@ */ | |
2277 | 0, /* @tp_iter@ */ | |
2278 | 0, /* @tp_iternext@ */ | |
2279 | 0, /* @tp_methods@ */ | |
2280 | 0, /* @tp_members@ */ | |
2281 | gcprp_pygetset, /* @tp_getset@ */ | |
2282 | 0, /* @tp_base@ */ | |
2283 | 0, /* @tp_dict@ */ | |
2284 | 0, /* @tp_descr_get@ */ | |
2285 | 0, /* @tp_descr_set@ */ | |
2286 | 0, /* @tp_dictoffset@ */ | |
2287 | 0, /* @tp_init@ */ | |
2288 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
2289 | abstract_pynew, /* @tp_new@ */ | |
2290 | 0, /* @tp_free@ */ | |
2291 | 0 /* @tp_is_gc@ */ | |
2292 | }; | |
2293 | ||
2294 | static PyTypeObject gprp_pytype_skel = { | |
2295 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
c461c9b3 | 2296 | "GPRP", /* @tp_name@ */ |
03ed9abb MW |
2297 | sizeof(gprp_pyobj), /* @tp_basicsize@ */ |
2298 | 0, /* @tp_itemsize@ */ | |
2299 | ||
2300 | gprp_pydealloc, /* @tp_dealloc@ */ | |
2301 | 0, /* @tp_print@ */ | |
2302 | 0, /* @tp_getattr@ */ | |
2303 | 0, /* @tp_setattr@ */ | |
2304 | 0, /* @tp_compare@ */ | |
2305 | 0, /* @tp_repr@ */ | |
2306 | 0, /* @tp_as_number@ */ | |
2307 | 0, /* @tp_as_sequence@ */ | |
2308 | 0, /* @tp_as_mapping@ */ | |
2309 | 0, /* @tp_hash@ */ | |
2310 | 0, /* @tp_call@ */ | |
2311 | 0, /* @tp_str@ */ | |
2312 | 0, /* @tp_getattro@ */ | |
2313 | 0, /* @tp_setattro@ */ | |
2314 | 0, /* @tp_as_buffer@ */ | |
2315 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
2316 | Py_TPFLAGS_BASETYPE, | |
2317 | ||
2318 | /* @tp_doc@ */ | |
2319 | "Pseudorandom permutation, abstract base class.", | |
2320 | ||
2321 | 0, /* @tp_traverse@ */ | |
2322 | 0, /* @tp_clear@ */ | |
2323 | 0, /* @tp_richcompare@ */ | |
2324 | 0, /* @tp_weaklistoffset@ */ | |
2325 | 0, /* @tp_iter@ */ | |
2326 | 0, /* @tp_iternext@ */ | |
2327 | gprp_pymethods, /* @tp_methods@ */ | |
2328 | 0, /* @tp_members@ */ | |
2329 | 0, /* @tp_getset@ */ | |
2330 | 0, /* @tp_base@ */ | |
2331 | 0, /* @tp_dict@ */ | |
2332 | 0, /* @tp_descr_get@ */ | |
2333 | 0, /* @tp_descr_set@ */ | |
2334 | 0, /* @tp_dictoffset@ */ | |
2335 | 0, /* @tp_init@ */ | |
2336 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
2337 | abstract_pynew, /* @tp_new@ */ | |
2338 | 0, /* @tp_free@ */ | |
2339 | 0 /* @tp_is_gc@ */ | |
2340 | }; | |
2341 | ||
d7ab1bab | 2342 | /*----- Main code ---------------------------------------------------------*/ |
2343 | ||
89157adc MW |
2344 | static PyMethodDef methods[] = { |
2345 | #define METHNAME(func) meth_##func | |
2346 | METH (_KeySZ_fromdl, "\ | |
2347 | fromdl(N) -> M: convert integer discrete log field size to work factor") | |
2348 | METH (_KeySZ_fromschnorr, "\ | |
2349 | fromschnorr(N) -> M: convert Schnorr group order to work factor") | |
2350 | METH (_KeySZ_fromif, "\ | |
2351 | fromif(N) -> M: convert integer factorization problem size to work factor") | |
2352 | METH (_KeySZ_fromec, "\ | |
2353 | fromec(N) -> M: convert elliptic curve group order to work factor") | |
2354 | METH (_KeySZ_todl, "\ | |
2355 | todl(N) -> M: convert work factor to integer discrete log field size") | |
2356 | METH (_KeySZ_toschnorr, "\ | |
2357 | toschnorr(N) -> M: convert work factor to Schnorr group order") | |
2358 | METH (_KeySZ_toif, "\ | |
2359 | toif(N) -> M: convert work factor to integer factorization problem size") | |
2360 | METH (_KeySZ_toec, "\ | |
2361 | toec(N) -> M: convert work factor to elliptic curve group order") | |
a75e68c9 MW |
2362 | METH (_KeySZ_toec, "\ |
2363 | toec(N) -> M: convert work factor to elliptic curve group order") | |
2364 | #define METH_HDANCE(hdance, HDance) METH(hdance##_prf, "\ | |
2365 | " #hdance "_prf(K, N) -> H: calculate " HDance " hash of N with K") | |
2366 | METH_HDANCE(hsalsa20, "HSalsa20") | |
2367 | METH_HDANCE(hsalsa2012, "HSalsa20/12") | |
2368 | METH_HDANCE(hsalsa208, "HSalsa20/8") | |
2369 | METH_HDANCE(hchacha20, "HChaCha20") | |
2370 | METH_HDANCE(hchacha12, "HChaCha12") | |
2371 | METH_HDANCE(hchacha8, "HChaCha8") | |
2372 | #undef METH_DANCE | |
89157adc MW |
2373 | #undef METHNAME |
2374 | { 0 } | |
2375 | }; | |
2376 | ||
d7ab1bab | 2377 | void algorithms_pyinit(void) |
2378 | { | |
2379 | INITTYPE(keysz, root); | |
2380 | INITTYPE(keyszany, keysz); | |
2381 | INITTYPE(keyszrange, keysz); | |
2382 | INITTYPE(keyszset, keysz); | |
2383 | INITTYPE(gccipher, type); | |
2384 | INITTYPE(gcipher, root); | |
2385 | INITTYPE(gchash, type); | |
2386 | INITTYPE(ghash, root); | |
2387 | INITTYPE(gcmac, type); | |
2388 | INITTYPE(gmac, type); | |
2389 | INITTYPE(gmhash, ghash); | |
204d480b MW |
2390 | INITTYPE(poly1305cls, type); |
2391 | INITTYPE_META(poly1305key, type, poly1305cls); | |
2392 | INITTYPE(poly1305hash, root); | |
b35fdbe6 | 2393 | INITTYPE(kxvik, root); |
6bd22b53 MW |
2394 | INITTYPE(shake, root); |
2395 | INITTYPE(shake128, shake); | |
2396 | INITTYPE(shake256, shake); | |
03ed9abb MW |
2397 | INITTYPE(gcprp, type); |
2398 | INITTYPE(gprp, root); | |
89157adc | 2399 | addmethods(methods); |
d7ab1bab | 2400 | } |
2401 | ||
d7ab1bab | 2402 | GEN(gcciphers, cipher) |
2403 | GEN(gchashes, hash) | |
2404 | GEN(gcmacs, mac) | |
03ed9abb MW |
2405 | #define gcprp prpinfo |
2406 | GEN(gcprps, prp) | |
d7ab1bab | 2407 | |
2408 | void algorithms_pyinsert(PyObject *mod) | |
2409 | { | |
2410 | PyObject *d; | |
2411 | INSERT("KeySZ", keysz_pytype); | |
2412 | INSERT("KeySZAny", keyszany_pytype); | |
2413 | INSERT("KeySZRange", keyszrange_pytype); | |
2414 | INSERT("KeySZSet", keyszset_pytype); | |
2415 | INSERT("GCCipher", gccipher_pytype); | |
2416 | INSERT("GCipher", gcipher_pytype); | |
2417 | INSERT("gcciphers", gcciphers()); | |
2418 | INSERT("GCHash", gchash_pytype); | |
2419 | INSERT("GHash", ghash_pytype); | |
2420 | INSERT("gchashes", d = gchashes()); | |
2421 | sha_pyobj = PyDict_GetItemString(d, "sha"); Py_INCREF(sha_pyobj); | |
2422 | has160_pyobj = PyDict_GetItemString(d, "has160"); Py_INCREF(has160_pyobj); | |
2423 | INSERT("GCMAC", gcmac_pytype); | |
2424 | INSERT("GMAC", gmac_pytype); | |
2425 | INSERT("GMACHash", gmhash_pytype); | |
2426 | INSERT("gcmacs", gcmacs()); | |
204d480b MW |
2427 | INSERT("Poly1305Class", poly1305cls_pytype); |
2428 | INSERT("poly1305", poly1305key_pytype); | |
2429 | INSERT("Poly1305Hash", poly1305hash_pytype); | |
b35fdbe6 | 2430 | INSERT("Keccak1600", kxvik_pytype); |
6bd22b53 MW |
2431 | INSERT("Shake", shake_pytype); |
2432 | INSERT("Shake128", shake128_pytype); | |
2433 | INSERT("Shake256", shake256_pytype); | |
03ed9abb MW |
2434 | INSERT("GCPRP", gcprp_pytype); |
2435 | INSERT("GPRP", gprp_pytype); | |
2436 | INSERT("gcprps", gcprps()); | |
d7ab1bab | 2437 | } |
2438 | ||
2439 | /*----- That's all, folks -------------------------------------------------*/ |