3 * Symmetric cryptography
5 * (c) 2004 Straylight/Edgeware
8 /*----- Licensing notice --------------------------------------------------*
10 * This file is part of the Python interface to Catacomb.
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.
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.
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.
27 /*----- Header files ------------------------------------------------------*/
29 #include "catacomb-python.h"
31 #include "algorithms.h"
34 /*----- Key sizes ---------------------------------------------------------*/
36 static PyTypeObject
*keysz_pytype
;
37 static PyTypeObject
*keyszany_pytype
, *keyszrange_pytype
, *keyszset_pytype
;
39 typedef struct keysz_pyobj
{
44 typedef struct keyszrange_pyobj
{
50 typedef struct keyszset_pyobj
{
56 #define KEYSZ_PYCHECK(o) PyObject_TypeCheck((o), keysz_pytype)
59 # define KSZ_OPMASK 0x1f
63 # define KSZ_16BIT 0x20
66 PyObject
*keysz_pywrap(const octet
*k
)
69 #define ARG(i) (op&KSZ_16BIT ? LOAD16(k + 2*(i)) : k[i])
70 switch (op
&KSZ_OPMASK
) {
72 keysz_pyobj
*o
= PyObject_New(keysz_pyobj
, keyszany_pytype
);
74 return ((PyObject
*)o
);
78 PyObject_New(keyszrange_pyobj
, keyszrange_pytype
);
83 if (!o
->mod
) o
->mod
= 1;
84 return ((PyObject
*)o
);
88 PyObject_New(keyszset_pyobj
, keyszset_pytype
);
91 for (i
= 0; ARG(i
); i
++) ;
92 n
= i
; o
->set
= PyTuple_New(n
);
93 for (i
= 0; i
< n
; i
++)
94 PyTuple_SET_ITEM(o
->set
, i
, PyInt_FromLong(ARG(i
)));
95 return ((PyObject
*)o
);
103 static PyObject
*keyszany_pynew(PyTypeObject
*ty
,
104 PyObject
*arg
, PyObject
*kw
)
106 static const char *const kwlist
[] = { "default", 0 };
110 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "i:new", KWLIST
, &dfl
))
112 if (dfl
< 0) VALERR("key size cannot be negative");
113 o
= (keysz_pyobj
*)ty
->tp_alloc(ty
, 0);
115 return ((PyObject
*)o
);
120 static PyObject
*keyszrange_pynew(PyTypeObject
*ty
,
121 PyObject
*arg
, PyObject
*kw
)
123 static const char *const kwlist
[] = { "default", "min", "max", "mod", 0 };
124 int dfl
, min
= 0, max
= 0, mod
= 1;
127 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "i|iii:new", KWLIST
,
128 &dfl
, &min
, &max
, &mod
))
130 if (dfl
< 0 || min
< 0) VALERR("key size cannot be negative");
131 if (min
> dfl
|| (max
&& dfl
> max
)) VALERR("bad key size bounds");
132 if (mod
<= 0 || dfl
%mod
|| min
%mod
|| max
%mod
)
133 VALERR("bad key size modulus");
134 o
= (keyszrange_pyobj
*)ty
->tp_alloc(ty
, 0);
139 return ((PyObject
*)o
);
144 static PyObject
*keyszset_pynew(PyTypeObject
*ty
,
145 PyObject
*arg
, PyObject
*kw
)
147 static const char *const kwlist
[] = { "default", "set", 0 };
150 PyObject
*x
= 0, *l
= 0;
151 keyszset_pyobj
*o
= 0;
153 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "i|O:new", KWLIST
, &dfl
, &set
))
155 if (!set
) set
= PyTuple_New(0);
157 if (!PySequence_Check(set
)) TYERR("want a sequence");
158 n
= PySequence_Size(set
); if (n
< 0) goto end
;
159 l
= PyList_New(0); if (!l
) goto end
;
160 if (dfl
< 0) VALERR("key size cannot be negative");
161 x
= PyInt_FromLong(dfl
);
165 for (i
= 0; i
< n
; i
++) {
166 if ((x
= PySequence_GetItem(set
, i
)) == 0) goto end
;
167 xx
= PyInt_AsLong(x
);
168 if (PyErr_Occurred()) goto end
;
169 if (xx
== dfl
) continue;
170 if (xx
< 0) VALERR("key size cannot be negative");
176 if ((set
= PySequence_Tuple(l
)) == 0) goto end
;
177 o
= (keyszset_pyobj
*)ty
->tp_alloc(ty
, 0);
185 return ((PyObject
*)o
);
188 static PyObject
*kaget_min(PyObject
*me
, void *hunoz
)
189 { return (PyInt_FromLong(0)); }
190 #define kaget_max kaget_min
192 static PyObject
*ksget_min(PyObject
*me
, void *hunoz
)
194 PyObject
*set
= ((keyszset_pyobj
*)me
)->set
;
196 n
= PyTuple_GET_SIZE(set
);
197 for (i
= 0; i
< n
; i
++) {
198 y
= PyInt_AS_LONG(PyTuple_GET_ITEM(set
, i
));
199 if (x
== -1 || y
< x
) x
= y
;
201 return (PyInt_FromLong(x
));
204 static PyObject
*ksget_max(PyObject
*me
, void *hunoz
)
206 PyObject
*set
= ((keyszset_pyobj
*)me
)->set
;
208 n
= PyTuple_GET_SIZE(set
);
209 for (i
= 0; i
< n
; i
++) {
210 y
= PyInt_AS_LONG(PyTuple_GET_ITEM(set
, i
));
213 return (PyInt_FromLong(x
));
216 static const PyMemberDef keysz_pymembers
[] = {
217 #define MEMBERSTRUCT keysz_pyobj
218 MEMRNM(default, T_INT
, dfl
, READONLY
, "KSZ.default -> default key size")
223 #define KSZCONVOP(op) \
224 static PyObject *kszmeth_##op(PyObject *me, PyObject *arg) \
227 if (!PyArg_ParseTuple(arg, "d:" #op, &x)) return (0); \
229 return (PyFloat_FromDouble(y)); \
232 KSZCONVOP(fromschnorr
)
241 static const PyMethodDef keysz_pymethods
[] = {
242 #define METHNAME(name) kszmeth_##name
243 SMTH (fromdl
, "fromdl(N) -> M: "
244 "convert integer discrete log field size to work factor")
245 SMTH (fromschnorr
, "fromschnorr(N) -> M: "
246 "convert Schnorr group order to work factor")
247 SMTH (fromif
, "fromif(N) -> M: "
248 "convert integer factorization problem size to work factor")
249 SMTH (fromec
, "fromec(N) -> M: "
250 "convert elliptic curve group order to work factor")
251 SMTH (todl
, "todl(N) -> M: "
252 "convert work factor to integer discrete log field size")
253 SMTH (toschnorr
, "toschnorr(N) -> M: "
254 "convert work factor to Schnorr group order")
255 SMTH (toif
, "toif(N) -> M: "
256 "convert work factor to integer factorization problem size")
257 SMTH (toec
, "toec(N) -> M: "
258 "convert work factor to elliptic curve group order")
259 SMTH (toec
, "toec(N) -> M: "
260 "convert work factor to elliptic curve group order")
265 static const PyGetSetDef keyszany_pygetset
[] = {
266 #define GETSETNAME(op, name) ka##op##_##name
267 GET (min
, "KSZ.min -> smallest allowed key size")
268 GET (max
, "KSZ.max -> largest allowed key size")
273 static const PyMemberDef keyszrange_pymembers
[] = {
274 #define MEMBERSTRUCT keyszrange_pyobj
275 MEMBER(min
, T_INT
, READONLY
, "KSZ.min -> smallest allowed key size")
276 MEMBER(max
, T_INT
, READONLY
, "KSZ.max -> largest allowed key size")
277 MEMBER(mod
, T_INT
, READONLY
,
278 "KSZ.mod -> key size must be a multiple of this")
283 static const PyGetSetDef keyszset_pygetset
[] = {
284 #define GETSETNAME(op, name) ks##op##_##name
285 GET (min
, "KSZ.min -> smallest allowed key size")
286 GET (max
, "KSZ.max -> largest allowed key size")
291 static const PyMemberDef keyszset_pymembers
[] = {
292 #define MEMBERSTRUCT keyszset_pyobj
293 MEMBER(set
, T_OBJECT
, READONLY
, "KSZ.set -> allowed key sizes")
298 static const PyTypeObject keysz_pytype_skel
= {
299 PyVarObject_HEAD_INIT(0, 0) /* Header */
300 "KeySZ", /* @tp_name@ */
301 sizeof(keysz_pyobj
), /* @tp_basicsize@ */
302 0, /* @tp_itemsize@ */
304 0, /* @tp_dealloc@ */
306 0, /* @tp_getattr@ */
307 0, /* @tp_setattr@ */
308 0, /* @tp_compare@ */
310 0, /* @tp_as_number@ */
311 0, /* @tp_as_sequence@ */
312 0, /* @tp_as_mapping@ */
316 0, /* @tp_getattro@ */
317 0, /* @tp_setattro@ */
318 0, /* @tp_as_buffer@ */
319 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
323 "Key size constraints. Abstract.",
325 0, /* @tp_traverse@ */
327 0, /* @tp_richcompare@ */
328 0, /* @tp_weaklistoffset@ */
330 0, /* @tp_iternext@ */
331 PYMETHODS(keysz
), /* @tp_methods@ */
332 PYMEMBERS(keysz
), /* @tp_members@ */
336 0, /* @tp_descr_get@ */
337 0, /* @tp_descr_set@ */
338 0, /* @tp_dictoffset@ */
340 PyType_GenericAlloc
, /* @tp_alloc@ */
341 abstract_pynew
, /* @tp_new@ */
346 static const PyTypeObject keyszany_pytype_skel
= {
347 PyVarObject_HEAD_INIT(0, 0) /* Header */
348 "KeySZAny", /* @tp_name@ */
349 sizeof(keysz_pyobj
), /* @tp_basicsize@ */
350 0, /* @tp_itemsize@ */
352 0, /* @tp_dealloc@ */
354 0, /* @tp_getattr@ */
355 0, /* @tp_setattr@ */
356 0, /* @tp_compare@ */
358 0, /* @tp_as_number@ */
359 0, /* @tp_as_sequence@ */
360 0, /* @tp_as_mapping@ */
364 0, /* @tp_getattro@ */
365 0, /* @tp_setattro@ */
366 0, /* @tp_as_buffer@ */
367 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
371 "KeySZAny(DEFAULT)\n"
372 " Key size constraints. This object imposes no constraints on size.",
374 0, /* @tp_traverse@ */
376 0, /* @tp_richcompare@ */
377 0, /* @tp_weaklistoffset@ */
379 0, /* @tp_iternext@ */
380 0, /* @tp_methods@ */
381 0, /* @tp_members@ */
382 PYGETSET(keyszany
), /* @tp_getset@ */
385 0, /* @tp_descr_get@ */
386 0, /* @tp_descr_set@ */
387 0, /* @tp_dictoffset@ */
389 PyType_GenericAlloc
, /* @tp_alloc@ */
390 keyszany_pynew
, /* @tp_new@ */
395 static const PyTypeObject keyszrange_pytype_skel
= {
396 PyVarObject_HEAD_INIT(0, 0) /* Header */
397 "KeySZRange", /* @tp_name@ */
398 sizeof(keyszrange_pyobj
), /* @tp_basicsize@ */
399 0, /* @tp_itemsize@ */
401 0, /* @tp_dealloc@ */
403 0, /* @tp_getattr@ */
404 0, /* @tp_setattr@ */
405 0, /* @tp_compare@ */
407 0, /* @tp_as_number@ */
408 0, /* @tp_as_sequence@ */
409 0, /* @tp_as_mapping@ */
413 0, /* @tp_getattro@ */
414 0, /* @tp_setattro@ */
415 0, /* @tp_as_buffer@ */
416 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
420 "KeySZRange(DEFAULT, [min = 0], [max = 0], [mod = 1])\n"
421 " Key size constraints: size must be between MIN and MAX inclusive, and\n"
422 " be a multiple of MOD.",
424 0, /* @tp_traverse@ */
426 0, /* @tp_richcompare@ */
427 0, /* @tp_weaklistoffset@ */
429 0, /* @tp_iternext@ */
430 0, /* @tp_methods@ */
431 PYMEMBERS(keyszrange
), /* @tp_members@ */
435 0, /* @tp_descr_get@ */
436 0, /* @tp_descr_set@ */
437 0, /* @tp_dictoffset@ */
439 PyType_GenericAlloc
, /* @tp_alloc@ */
440 keyszrange_pynew
, /* @tp_new@ */
445 static const PyTypeObject keyszset_pytype_skel
= {
446 PyVarObject_HEAD_INIT(0, 0) /* Header */
447 "KeySZSet", /* @tp_name@ */
448 sizeof(keyszset_pyobj
), /* @tp_basicsize@ */
449 0, /* @tp_itemsize@ */
451 0, /* @tp_dealloc@ */
453 0, /* @tp_getattr@ */
454 0, /* @tp_setattr@ */
455 0, /* @tp_compare@ */
457 0, /* @tp_as_number@ */
458 0, /* @tp_as_sequence@ */
459 0, /* @tp_as_mapping@ */
463 0, /* @tp_getattro@ */
464 0, /* @tp_setattro@ */
465 0, /* @tp_as_buffer@ */
466 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
470 "KeySZSet(DEFAULT, SEQ)\n"
471 " Key size constraints: size must be DEFAULT or an element of SEQ.",
473 0, /* @tp_traverse@ */
475 0, /* @tp_richcompare@ */
476 0, /* @tp_weaklistoffset@ */
478 0, /* @tp_iternext@ */
479 0, /* @tp_methods@ */
480 PYMEMBERS(keyszset
), /* @tp_members@ */
481 PYGETSET(keyszset
), /* @tp_getset@ */
484 0, /* @tp_descr_get@ */
485 0, /* @tp_descr_set@ */
486 0, /* @tp_dictoffset@ */
488 PyType_GenericAlloc
, /* @tp_alloc@ */
489 keyszset_pynew
, /* @tp_new@ */
494 /*----- Symmetric encryption ----------------------------------------------*/
496 static PyTypeObject
*gccipher_pytype
, *gcipher_pytype
;
498 typedef struct gccipher_pyobj
{
503 #define GCCIPHER_PYCHECK(o) PyObject_TypeCheck((o), gccipher_pytype)
504 #define GCCIPHER_CC(o) (((gccipher_pyobj *)(o))->cc)
506 typedef struct gcipher_pyobj
{
511 #define GCIPHER_PYCHECK(o) PyObject_TypeCheck((o), gcipher_pytype)
512 #define GCIPHER_C(o) (((gcipher_pyobj *)(o))->c)
514 CONVFUNC(gccipher
, gccipher
*, GCCIPHER_CC
)
516 static PyObject
*gcipher_pywrap(PyObject
*cobj
, gcipher
*c
)
519 if (!cobj
) cobj
= gccipher_pywrap((/*unconst*/ gccipher
*)GC_CLASS(c
));
520 else Py_INCREF(cobj
);
521 g
= PyObject_NEW(gcipher_pyobj
, (PyTypeObject
*)cobj
);
523 return ((PyObject
*)g
);
526 static PyObject
*gcipher_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
528 static const char *const kwlist
[] = { "k", 0 };
531 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&:new", KWLIST
, convbin
, &k
))
533 if (keysz(k
.sz
, GCCIPHER_CC(ty
)->keysz
) != k
.sz
) VALERR("bad key length");
534 return (gcipher_pywrap((PyObject
*)ty
,
535 GC_INIT(GCCIPHER_CC(ty
), k
.p
, k
.sz
)));
540 PyObject
*gccipher_pywrap(gccipher
*cc
)
542 gccipher_pyobj
*g
= newtype(gccipher_pytype
, 0, cc
->name
);
544 g
->ty
.ht_type
.tp_basicsize
= sizeof(gcipher_pyobj
);
545 g
->ty
.ht_type
.tp_base
= gcipher_pytype
;
546 Py_INCREF(gcipher_pytype
);
547 g
->ty
.ht_type
.tp_flags
= (Py_TPFLAGS_DEFAULT
|
548 Py_TPFLAGS_BASETYPE
|
549 Py_TPFLAGS_HEAPTYPE
);
550 g
->ty
.ht_type
.tp_alloc
= PyType_GenericAlloc
;
551 g
->ty
.ht_type
.tp_free
= 0;
552 g
->ty
.ht_type
.tp_new
= gcipher_pynew
;
553 typeready(&g
->ty
.ht_type
);
554 return ((PyObject
*)g
);
557 static void gcipher_pydealloc(PyObject
*me
)
559 GC_DESTROY(GCIPHER_C(me
));
560 Py_DECREF(Py_TYPE(me
));
564 static PyObject
*gccget_name(PyObject
*me
, void *hunoz
)
565 { return (TEXT_FROMSTR(GCCIPHER_CC(me
)->name
)); }
567 static PyObject
*gccget_keysz(PyObject
*me
, void *hunoz
)
568 { return (keysz_pywrap(GCCIPHER_CC(me
)->keysz
)); }
570 static PyObject
*gccget_blksz(PyObject
*me
, void *hunoz
)
571 { return (PyInt_FromLong(GCCIPHER_CC(me
)->blksz
)); }
573 static PyObject
*gcmeth_encrypt(PyObject
*me
, PyObject
*arg
)
578 if (!PyArg_ParseTuple(arg
, "O&:encrypt", convbin
, &m
)) return (0);
579 rc
= bytestring_pywrap(0, m
.sz
);
580 GC_ENCRYPT(GCIPHER_C(me
), m
.p
, BIN_PTR(rc
), m
.sz
);
584 static PyObject
*gcmeth_enczero(PyObject
*me
, PyObject
*arg
)
590 if (!PyArg_ParseTuple(arg
, "i:enczero", &sz
)) return (0);
591 rc
= bytestring_pywrap(0, sz
);
594 GC_ENCRYPT(GCIPHER_C(me
), p
, p
, sz
);
598 static PyObject
*gcmeth_decrypt(PyObject
*me
, PyObject
*arg
)
603 if (!PyArg_ParseTuple(arg
, "O&:decrypt", convbin
, &c
)) return (0);
604 rc
= bytestring_pywrap(0, c
.sz
);
605 GC_DECRYPT(GCIPHER_C(me
), c
.p
, BIN_PTR(rc
), c
.sz
);
609 static PyObject
*gcmeth_deczero(PyObject
*me
, PyObject
*arg
)
615 if (!PyArg_ParseTuple(arg
, "i:deczero", &sz
)) return (0);
616 rc
= bytestring_pywrap(0, sz
);
619 GC_DECRYPT(GCIPHER_C(me
), p
, p
, sz
);
623 static PyObject
*gcmeth_setiv(PyObject
*me
, PyObject
*arg
)
627 if (!PyArg_ParseTuple(arg
, "O&:setiv", convbin
, &iv
)) goto end
;
628 if (!GCIPHER_C(me
)->ops
->setiv
) VALERR("`setiv' not supported");
629 if (!GC_CLASS(GCIPHER_C(me
))->blksz
) VALERR("not a block cipher mode");
630 if (iv
.sz
!= GC_CLASS(GCIPHER_C(me
))->blksz
) VALERR("bad IV length");
631 GC_SETIV(GCIPHER_C(me
), iv
.p
);
637 static PyObject
*gcmeth_bdry(PyObject
*me
)
639 if (!GCIPHER_C(me
)->ops
->bdry
) VALERR("`bdry' not supported");
640 if (!GC_CLASS(GCIPHER_C(me
))->blksz
) VALERR("not a block cipher mode");
641 GC_BDRY(GCIPHER_C(me
));
647 static const PyGetSetDef gccipher_pygetset
[] = {
648 #define GETSETNAME(op, name) gcc##op##_##name
649 GET (keysz
, "CC.keysz -> acceptable key sizes")
650 GET (blksz
, "CC.blksz -> block size, or zero")
651 GET (name
, "CC.name -> name of this kind of cipher")
656 static const PyMethodDef gcipher_pymethods
[] = {
657 #define METHNAME(name) gcmeth_##name
658 METH (encrypt
, "C.encrypt(PT) -> CT")
659 METH (enczero
, "C.enczero(N) -> CT")
660 METH (decrypt
, "C.decrypt(CT) -> PT")
661 METH (deczero
, "C.deczero(N) -> PT")
662 METH (setiv
, "C.setiv(IV)")
663 NAMETH(bdry
, "C.bdry()")
668 static const PyTypeObject gccipher_pytype_skel
= {
669 PyVarObject_HEAD_INIT(0, 0) /* Header */
670 "GCCipher", /* @tp_name@ */
671 sizeof(gccipher_pyobj
), /* @tp_basicsize@ */
672 0, /* @tp_itemsize@ */
674 0, /* @tp_dealloc@ */
676 0, /* @tp_getattr@ */
677 0, /* @tp_setattr@ */
678 0, /* @tp_compare@ */
680 0, /* @tp_as_number@ */
681 0, /* @tp_as_sequence@ */
682 0, /* @tp_as_mapping@ */
686 0, /* @tp_getattro@ */
687 0, /* @tp_setattro@ */
688 0, /* @tp_as_buffer@ */
689 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
693 "Symmetric cipher metaclass.",
695 0, /* @tp_traverse@ */
697 0, /* @tp_richcompare@ */
698 0, /* @tp_weaklistoffset@ */
700 0, /* @tp_iternext@ */
701 0, /* @tp_methods@ */
702 0, /* @tp_members@ */
703 PYGETSET(gccipher
), /* @tp_getset@ */
706 0, /* @tp_descr_get@ */
707 0, /* @tp_descr_set@ */
708 0, /* @tp_dictoffset@ */
710 PyType_GenericAlloc
, /* @tp_alloc@ */
711 abstract_pynew
, /* @tp_new@ */
716 static const PyTypeObject gcipher_pytype_skel
= {
717 PyVarObject_HEAD_INIT(0, 0) /* Header */
718 "GCipher", /* @tp_name@ */
719 sizeof(gcipher_pyobj
), /* @tp_basicsize@ */
720 0, /* @tp_itemsize@ */
722 gcipher_pydealloc
, /* @tp_dealloc@ */
724 0, /* @tp_getattr@ */
725 0, /* @tp_setattr@ */
726 0, /* @tp_compare@ */
728 0, /* @tp_as_number@ */
729 0, /* @tp_as_sequence@ */
730 0, /* @tp_as_mapping@ */
734 0, /* @tp_getattro@ */
735 0, /* @tp_setattro@ */
736 0, /* @tp_as_buffer@ */
737 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
741 "Symmetric cipher, abstract base class.",
743 0, /* @tp_traverse@ */
745 0, /* @tp_richcompare@ */
746 0, /* @tp_weaklistoffset@ */
748 0, /* @tp_iternext@ */
749 PYMETHODS(gcipher
), /* @tp_methods@ */
750 0, /* @tp_members@ */
754 0, /* @tp_descr_get@ */
755 0, /* @tp_descr_set@ */
756 0, /* @tp_dictoffset@ */
758 PyType_GenericAlloc
, /* @tp_alloc@ */
759 abstract_pynew
, /* @tp_new@ */
764 /*----- Authenticated encryption ------------------------------------------*/
766 static PyTypeObject
*gcaead_pytype
, *gaeadkey_pytype
;
767 static PyTypeObject
*gcaeadaad_pytype
, *gaeadaad_pytype
;
768 static PyTypeObject
*gcaeadenc_pytype
, *gaeadenc_pytype
;
769 static PyTypeObject
*gcaeaddec_pytype
, *gaeaddec_pytype
;
771 typedef struct gcaead_pyobj
{
774 struct gcaeadaad_pyobj
*aad
;
775 struct gcaeadenc_pyobj
*enc
;
776 struct gcaeaddec_pyobj
*dec
;
779 #define GCAEAD_PYCHECK(o) PyObject_TypeCheck((o), gcaead_pytype)
780 #define GCAEAD_AEC(o) (((gcaead_pyobj *)(o))->aec)
781 #define GCAEAD_AAD(o) (((gcaead_pyobj *)(o))->aad)
782 #define GCAEAD_ENC(o) (((gcaead_pyobj *)(o))->enc)
783 #define GCAEAD_DEC(o) (((gcaead_pyobj *)(o))->dec)
784 static PyObject
*gcaead_pywrap(gcaead
*);
786 typedef struct gaeadkey_pyobj
{
791 #define GAEADKEY_PYCHECK(o) PyObject_TypeCheck((o), gaeadkey_pytype)
792 #define GAEADKEY_K(o) (((gaeadkey_pyobj *)(o))->k)
794 typedef struct gcaeadaad_pyobj
{
799 #define GCAEADAAD_KEY(o) (((gcaeadaad_pyobj *)(o))->key)
800 static PyObject
*gaeadaad_pywrap(PyObject
*, gaead_aad
*, unsigned, size_t);
802 typedef struct gaeadaad_pyobj
{
806 #define AEADF_DEAD 32768u
810 #define GAEADAAD_PYCHECK(o) PyObject_TypeCheck((o), gaeadaad_pytype)
811 #define GAEADAAD_A(o) (((gaeadaad_pyobj *)(o))->a)
812 #define GAEADAAD_F(o) (((gaeadaad_pyobj *)(o))->f)
813 #define GAEADAAD_HSZ(o) (((gaeadaad_pyobj *)(o))->hsz)
814 #define GAEADAAD_HLEN(o) (((gaeadaad_pyobj *)(o))->hlen)
816 typedef struct gcaeadenc_pyobj
{
821 #define GCAEADENC_KEY(o) (((gcaeadenc_pyobj *)(o))->key)
822 static PyObject
*gaeadenc_pywrap(PyObject
*, gaead_enc
*, unsigned,
823 size_t, size_t, size_t);
825 typedef struct gaeadenc_pyobj
{
830 size_t hsz
, msz
, tsz
;
834 #define GAEADENC_PYCHECK(o) PyObject_TypeCheck((o), gaeadenc_pytype)
835 #define GAEADENC_AAD(o) (((gaeadenc_pyobj *)(o))->aad)
836 #define GAEADENC_E(o) (((gaeadenc_pyobj *)(o))->e)
837 #define GAEADENC_F(o) (((gaeadenc_pyobj *)(o))->f)
838 #define GAEADENC_HSZ(o) (((gaeadenc_pyobj *)(o))->hsz)
839 #define GAEADENC_MSZ(o) (((gaeadenc_pyobj *)(o))->msz)
840 #define GAEADENC_TSZ(o) (((gaeadenc_pyobj *)(o))->tsz)
841 #define GAEADENC_MLEN(o) (((gaeadenc_pyobj *)(o))->mlen)
843 typedef struct gcaeaddec_pyobj
{
848 #define GCAEADDEC_KEY(o) (((gcaeaddec_pyobj *)(o))->key)
849 static PyObject
*gaeaddec_pywrap(PyObject
*, gaead_dec
*, unsigned,
850 size_t, size_t, size_t);
852 typedef struct gaeaddec_pyobj
{
857 size_t hsz
, csz
, tsz
;
861 #define GAEADDEC_PYCHECK(o) PyObject_TypeCheck((o), gaeaddec_pytype)
862 #define GAEADDEC_AAD(o) (((gaeaddec_pyobj *)(o))->aad)
863 #define GAEADDEC_D(o) (((gaeaddec_pyobj *)(o))->d)
864 #define GAEADDEC_F(o) (((gaeaddec_pyobj *)(o))->f)
865 #define GAEADDEC_HSZ(o) (((gaeaddec_pyobj *)(o))->hsz)
866 #define GAEADDEC_CSZ(o) (((gaeaddec_pyobj *)(o))->csz)
867 #define GAEADDEC_TSZ(o) (((gaeaddec_pyobj *)(o))->tsz)
868 #define GAEADDEC_CLEN(o) (((gaeaddec_pyobj *)(o))->clen)
870 static PyObject
*gaeadkey_pywrap(PyObject
*cobj
, gaead_key
*k
)
874 if (!cobj
) cobj
= gcaead_pywrap((/*unconst*/ gcaead
*)GAEAD_CLASS(k
));
875 else Py_INCREF(cobj
);
876 gk
= PyObject_NEW(gaeadkey_pyobj
, (PyTypeObject
*)cobj
);
878 return ((PyObject
*)gk
);
881 static PyObject
*gaeadkey_pynew(PyTypeObject
*ty
,
882 PyObject
*arg
, PyObject
*kw
)
884 static const char *const kwlist
[] = { "k", 0 };
887 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&:new", KWLIST
, convbin
, &k
))
889 if (keysz(k
.sz
, GCAEAD_AEC(ty
)->keysz
) != k
.sz
) VALERR("bad key length");
890 return (gaeadkey_pywrap((PyObject
*)ty
,
891 GAEAD_KEY(GCAEAD_AEC(ty
), k
.p
, k
.sz
)));
896 static PyObject
*gcaead_pywrap(gcaead
*aec
)
899 gcaeadaad_pyobj
*gca
;
900 gcaeadenc_pyobj
*gce
;
901 gcaeaddec_pyobj
*gcd
;
903 #define MKTYPE(obj, thing, newfn, namefmt) do { \
904 (obj) = newtype(gcaead_pytype, 0, 0); \
905 (obj)->ty.ht_name = TEXT_FORMAT(namefmt, aec->name); \
906 (obj)->ty.ht_type.tp_name = TEXT_PTR((obj)->ty.ht_name); \
907 (obj)->ty.ht_type.tp_basicsize = sizeof(gaead##thing##_pyobj); \
908 (obj)->ty.ht_type.tp_base = gaead##thing##_pytype; \
909 Py_INCREF(gaead##thing##_pytype); \
910 (obj)->ty.ht_type.tp_flags = \
911 (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HEAPTYPE); \
912 (obj)->ty.ht_type.tp_alloc = PyType_GenericAlloc; \
913 (obj)->ty.ht_type.tp_free = 0; \
914 (obj)->ty.ht_type.tp_new = newfn; \
915 typeready(&(obj)->ty.ht_type); \
918 MKTYPE(gck
, key
, gaeadkey_pynew
, "%s(key)");
919 MKTYPE(gca
, aad
, abstract_pynew
, "%s(aad-hash)");
920 MKTYPE(gce
, enc
, abstract_pynew
, "%s(encrypt)");
921 MKTYPE(gcd
, dec
, abstract_pynew
, "%s(decrypt)");
925 gck
->aec
= aec
; gck
->aad
= gca
; gck
->enc
= gce
; gck
->dec
= gcd
;
926 gca
->key
= gce
->key
= gcd
->key
= gck
;
927 return ((PyObject
*)gck
);
930 static void gaeadkey_pydealloc(PyObject
*me
)
931 { GAEAD_DESTROY(GAEADKEY_K(me
)); Py_DECREF(Py_TYPE(me
)); FREEOBJ(me
); }
933 static PyObject
*gcaeget_name(PyObject
*me
, void *hunoz
)
934 { return (TEXT_FROMSTR(GCAEAD_AEC(me
)->name
)); }
936 static PyObject
*gcaeget_keysz(PyObject
*me
, void *hunoz
)
937 { return (keysz_pywrap(GCAEAD_AEC(me
)->keysz
)); }
939 static PyObject
*gcaeget_noncesz(PyObject
*me
, void *hunoz
)
940 { return (keysz_pywrap(GCAEAD_AEC(me
)->noncesz
)); }
942 static PyObject
*gcaeget_tagsz(PyObject
*me
, void *hunoz
)
943 { return (keysz_pywrap(GCAEAD_AEC(me
)->tagsz
)); }
945 static PyObject
*gcaeget_blksz(PyObject
*me
, void *hunoz
)
946 { return (PyInt_FromLong(GCAEAD_AEC(me
)->blksz
)); }
948 static PyObject
*gcaeget_bufsz(PyObject
*me
, void *hunoz
)
949 { return (PyInt_FromLong(GCAEAD_AEC(me
)->bufsz
)); }
951 static PyObject
*gcaeget_ohd(PyObject
*me
, void *hunoz
)
952 { return (PyInt_FromLong(GCAEAD_AEC(me
)->ohd
)); }
954 static PyObject
*gcaeget_flags(PyObject
*me
, void *hunoz
)
955 { return (PyInt_FromLong(GCAEAD_AEC(me
)->f
)); }
957 static const PyGetSetDef gcaead_pygetset
[] = {
958 #define GETSETNAME(op, name) gcae##op##_##name
959 GET (keysz
, "AEC.keysz -> acceptable key sizes")
960 GET (noncesz
, "AEC.noncesz -> acceptable nonce sizes")
961 GET (tagsz
, "AEC.tagsz -> acceptable tag sizes")
962 GET (blksz
, "AEC.blksz -> block size, or zero")
963 GET (bufsz
, "AEC.bufsz -> amount of data buffered internally")
964 GET (ohd
, "AEC.ohd -> maximum encryption overhead")
965 GET (name
, "AEC.name -> name of this kind of AEAD scheme")
966 GET (flags
, "AEC.flags -> mask of `AEADF_...' flags")
971 static PyObject
*gaekmeth_aad(PyObject
*me
)
973 const gaead_key
*k
= GAEADKEY_K(me
);
976 if (k
->ops
->c
->f
&AEADF_AADNDEP
)
977 VALERR("aad must be associated with enc/dec op");
978 rc
= gaeadaad_pywrap((PyObject
*)GCAEAD_AAD(Py_TYPE(me
)),
984 static int check_aead_encdec(const gcaead
*aec
, unsigned *f_out
, size_t nsz
,
985 PyObject
*hszobj
, size_t *hsz_out
,
986 PyObject
*mszobj
, size_t *msz_out
,
987 PyObject
*tszobj
, size_t *tsz_out
)
989 unsigned f
= 0, miss
;
992 if (hszobj
!= Py_None
)
993 { f
|= AEADF_PCHSZ
; if (!convszt(hszobj
, hsz_out
)) goto end
; }
994 if (mszobj
!= Py_None
)
995 { f
|= AEADF_PCMSZ
; if (!convszt(mszobj
, msz_out
)) goto end
; }
996 if (tszobj
!= Py_None
)
997 { f
|= AEADF_PCTSZ
; if (!convszt(tszobj
, tsz_out
)) goto end
; }
999 if (miss
&AEADF_PCHSZ
) VALERR("header length precommitment required");
1000 if (miss
&AEADF_PCMSZ
) VALERR("message length precommitment required");
1001 if (miss
&AEADF_PCTSZ
) VALERR("tag length precommitment required");
1002 if (keysz(nsz
, aec
->noncesz
) != nsz
) VALERR("bad nonce length");
1003 if (tszobj
!= Py_None
&& keysz(*tsz_out
, aec
->tagsz
) != *tsz_out
)
1004 VALERR("bad tag length");
1005 *f_out
= f
| aec
->f
; rc
= 0;
1010 static PyObject
*gaekmeth_enc(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
1012 static const char *const kwlist
[] = { "nonce", "hsz", "msz", "tsz", 0 };
1013 const gaead_key
*k
= GAEADKEY_K(me
);
1017 PyObject
*hszobj
= Py_None
, *mszobj
= Py_None
, *tszobj
= Py_None
;
1018 size_t hsz
= 0, msz
= 0, tsz
= 0;
1021 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&|OOO:enc", KWLIST
,
1022 convbin
, &n
, &hszobj
, &mszobj
, &tszobj
))
1024 if (check_aead_encdec(k
->ops
->c
, &f
, n
.sz
,
1025 hszobj
, &hsz
, mszobj
, &msz
, tszobj
, &tsz
))
1027 e
= GAEAD_ENC(GAEADKEY_K(me
), n
.p
, n
.sz
, hsz
, msz
, tsz
);
1028 if (!e
) VALERR("bad aead parameter combination");
1029 rc
= gaeadenc_pywrap((PyObject
*)GCAEAD_ENC(Py_TYPE(me
)),
1030 e
, f
, hsz
, msz
, tsz
);
1035 static PyObject
*gaekmeth_dec(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
1037 static const char *const kwlist
[] = { "nonce", "hsz", "csz", "tsz", 0 };
1038 const gaead_key
*k
= GAEADKEY_K(me
);
1042 PyObject
*hszobj
= Py_None
, *cszobj
= Py_None
, *tszobj
= Py_None
;
1043 size_t hsz
= 0, csz
= 0, tsz
= 0;
1046 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&|OOO:dec", KWLIST
,
1047 convbin
, &n
, &hszobj
, &cszobj
, &tszobj
))
1049 if (check_aead_encdec(k
->ops
->c
, &f
, n
.sz
,
1050 hszobj
, &hsz
, cszobj
, &csz
, tszobj
, &tsz
))
1052 d
= GAEAD_DEC(GAEADKEY_K(me
), n
.p
, n
.sz
, hsz
, csz
, tsz
);
1053 if (!d
) VALERR("bad aead parameter combination");
1054 rc
= gaeaddec_pywrap((PyObject
*)GCAEAD_DEC(Py_TYPE(me
)),
1055 d
, f
, hsz
, csz
, tsz
);
1060 static const PyMethodDef gaeadkey_pymethods
[] = {
1061 #define METHNAME(name) gaekmeth_##name
1062 NAMETH(aad
, "KEY.aad() -> AAD")
1063 KWMETH(enc
, "KEY.enc(NONCE, [hsz], [msz], [tsz]) -> ENC")
1064 KWMETH(dec
, "KEY.dec(NONCE, [hsz], [csz], [tsz]) -> DEC")
1069 static PyObject
*gaeadaad_pywrap(PyObject
*cobj
, gaead_aad
*a
,
1070 unsigned f
, size_t hsz
)
1074 assert(cobj
); Py_INCREF(cobj
);
1075 ga
= PyObject_NEW(gaeadaad_pyobj
, (PyTypeObject
*)cobj
);
1076 ga
->a
= a
; ga
->f
= f
; ga
->hsz
= hsz
; ga
->hlen
= 0;
1077 return ((PyObject
*)ga
);
1080 static void gaeadaad_pydealloc(PyObject
*me
)
1082 gaeadaad_pyobj
*ga
= (gaeadaad_pyobj
*)me
;
1084 if (ga
->a
) GAEAD_DESTROY(ga
->a
);
1085 Py_DECREF(Py_TYPE(me
)); FREEOBJ(me
);
1088 static int gaea_check(PyObject
*me
)
1090 gaeadaad_pyobj
*ga
= (gaeadaad_pyobj
*)me
;
1093 if ((ga
->f
&AEADF_DEAD
) || !ga
->a
) VALERR("aad object no longer active");
1099 static void gaea_invalidate(gaeadaad_pyobj
*ga
)
1100 { if (ga
) ga
->f
|= AEADF_DEAD
; }
1102 static void gaea_sever(gaeadaad_pyobj
**ga_inout
)
1104 gaeadaad_pyobj
*ga
= *ga_inout
;
1105 if (ga
) { ga
->f
|= AEADF_DEAD
; ga
->a
= 0; Py_DECREF(ga
); *ga_inout
= 0; }
1108 static PyObject
*gaeaget_hsz(PyObject
*me
, void *hunoz
)
1110 if (gaea_check(me
)) return (0);
1111 else if (GAEADAAD_F(me
)&AEADF_PCHSZ
) return getulong(GAEADAAD_HSZ(me
));
1115 static PyObject
*gaeaget_hlen(PyObject
*me
, void *hunoz
)
1116 { return (gaea_check(me
) ?
0 : getulong(GAEADAAD_HLEN(me
))); }
1118 static const PyGetSetDef gaeadaad_pygetset
[] = {
1119 #define GETSETNAME(op, name) gaea##op##_##name
1120 GET (hsz
, "AAD.hsz -> precommitted header length or `None'")
1121 GET (hlen
, "AAD.hlen -> header length so far")
1126 static PyObject
*gaeameth_copy(PyObject
*me
)
1130 if (gaea_check(me
)) goto end
;
1131 if (GAEADAAD_F(me
)&AEADF_AADNDEP
)
1132 VALERR("can't duplicate nonce-dependent aad");
1133 rc
= gaeadaad_pywrap((PyObject
*)Py_TYPE(me
),
1134 GAEAD_DUP(GAEADAAD_A(me
)), 0, 0);
1135 GAEADAAD_HLEN(rc
) = GAEADAAD_HLEN(me
);
1140 static int gaeadaad_hash(PyObject
*me
, const void *h
, size_t hsz
)
1142 gaeadaad_pyobj
*ga
= (gaeadaad_pyobj
*)me
;
1145 if (gaea_check(me
)) goto end
;
1146 if ((ga
->f
&AEADF_NOAAD
) && hsz
)
1147 VALERR("header data not permitted");
1148 if ((ga
->f
&AEADF_PCHSZ
) && hsz
> ga
->hsz
- ga
->hlen
)
1149 VALERR("too large for precommitted header length");
1150 GAEAD_HASH(ga
->a
, h
, hsz
); ga
->hlen
+= hsz
;
1156 static PyObject
*gaeameth_hash(PyObject
*me
, PyObject
*arg
)
1160 if (!PyArg_ParseTuple(arg
, "O&:hash", convbin
, &h
)) return (0);
1161 if (gaeadaad_hash(me
, h
.p
, h
.sz
)) return (0);
1165 #define GAEAMETH_HASHU_(n, W, w) \
1166 static PyObject *gaeameth_hashu##w(PyObject *me, PyObject *arg) \
1168 uint##n x; octet b[SZ_##W]; \
1169 if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) return (0); \
1170 STORE##W(b, x); if (gaeadaad_hash(me, b, sizeof(b))) return (0); \
1173 DOUINTCONV(GAEAMETH_HASHU_
)
1175 #define GAEAMETH_HASHBUF_(n, W, w) \
1176 static PyObject *gaeameth_hashbuf##w(PyObject *me, PyObject *arg) \
1178 struct bin in; octet b[SZ_##W]; \
1179 if (!PyArg_ParseTuple(arg, "O&:hashbuf" #w, convbin, &in)) goto end; \
1180 if (in.sz > MASK##n) TYERR("string too long"); \
1181 STORE##W(b, in.sz); if (gaeadaad_hash(me, b, sizeof(b))) goto end; \
1182 if (gaeadaad_hash(me, in.p, in.sz)) goto end; \
1187 DOUINTCONV(GAEAMETH_HASHBUF_
)
1189 static PyObject
*gaeameth_hashstrz(PyObject
*me
, PyObject
*arg
)
1192 if (!PyArg_ParseTuple(arg
, "s:hashstrz", &p
)) return (0);
1193 if (gaeadaad_hash(me
, p
, strlen(p
) + 1)) return (0);
1197 static const PyMethodDef gaeadaad_pymethods
[] = {
1198 #define METHNAME(name) gaeameth_##name
1199 NAMETH(copy
, "AAD.copy() -> AAD'")
1200 METH (hash
, "AAD.hash(H)")
1201 #define METHU_(n, W, w) METH(hashu##w, "AAD.hashu" #w "(WORD)")
1204 #define METHBUF_(n, W, w) METH(hashbuf##w, "AAD.hashbuf" #w "(BYTES)")
1205 DOUINTCONV(METHBUF_
)
1207 METH (hashstrz
, "AAD.hashstrz(STRING)")
1212 static PyObject
*gaeadenc_pywrap(PyObject
*cobj
, gaead_enc
*e
, unsigned f
,
1213 size_t hsz
, size_t msz
, size_t tsz
)
1217 assert(cobj
); Py_INCREF(cobj
);
1218 ge
= PyObject_NEW(gaeadenc_pyobj
, (PyTypeObject
*)cobj
);
1219 ge
->e
= e
; ge
->f
= f
; ge
->hsz
= hsz
; ge
->msz
= msz
; ge
->tsz
= tsz
;
1220 ge
->aad
= 0; ge
->mlen
= 0;
1221 return ((PyObject
*)ge
);
1224 static void gaeadenc_pydealloc(PyObject
*me
)
1226 gaeadenc_pyobj
*ge
= (gaeadenc_pyobj
*)me
;
1228 gaea_sever(&ge
->aad
); GAEAD_DESTROY(ge
->e
);
1229 Py_DECREF(Py_TYPE(me
)); FREEOBJ(me
);
1232 static PyObject
*gaeeget_hsz(PyObject
*me
, void *hunoz
)
1234 if (GAEADENC_F(me
)&AEADF_PCHSZ
) return getulong(GAEADENC_HSZ(me
));
1238 static PyObject
*gaeeget_msz(PyObject
*me
, void *hunoz
)
1240 if (GAEADENC_F(me
)&AEADF_PCMSZ
) return getulong(GAEADENC_MSZ(me
));
1244 static PyObject
*gaeeget_tsz(PyObject
*me
, void *hunoz
)
1246 if (GAEADENC_F(me
)&AEADF_PCTSZ
) return getulong(GAEADENC_TSZ(me
));
1250 static PyObject
*gaeeget_mlen(PyObject
*me
, void *hunoz
)
1251 { return getulong(GAEADENC_MLEN(me
)); }
1253 static const PyGetSetDef gaeadenc_pygetset
[] = {
1254 #define GETSETNAME(op, name) gaee##op##_##name
1255 GET (hsz
, "ENC.hsz -> precommitted header length or `None'")
1256 GET (msz
, "ENC.msz -> precommitted message length or `None'")
1257 GET (tsz
, "ENC.tsz -> precommitted tag length or `None'")
1258 GET (mlen
, "ENC.mlen -> message length so far")
1263 static PyObject
*gaeemeth_aad(PyObject
*me
)
1265 gaeadenc_pyobj
*ge
= (gaeadenc_pyobj
*)me
;
1268 if (!(ge
->f
&AEADF_AADNDEP
))
1269 rc
= gaeadaad_pywrap((PyObject
*)GCAEADENC_KEY(Py_TYPE(ge
))->aad
,
1270 GAEAD_AAD(ge
->e
), 0, 0);
1272 if ((ge
->f
&AEADF_AADFIRST
) && ge
->mlen
)
1273 VALERR("too late for aad");
1275 ge
->aad
= (gaeadaad_pyobj
*)
1276 gaeadaad_pywrap((PyObject
*)GCAEADENC_KEY(Py_TYPE(ge
))->aad
,
1277 GAEAD_AAD(ge
->e
), ge
->f
&(AEADF_PCHSZ
| AEADF_NOAAD
),
1280 rc
= (PyObject
*)ge
->aad
;
1286 static PyObject
*gaeemeth_reinit(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
1288 static const char *const kwlist
[] = { "nonce", "hsz", "msz", "tsz", 0 };
1289 gaeadenc_pyobj
*ge
= (gaeadenc_pyobj
*)me
;
1291 PyObject
*hszobj
= Py_None
, *mszobj
= Py_None
, *tszobj
= Py_None
;
1292 size_t hsz
= 0, msz
= 0, tsz
= 0;
1295 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&|OOO:enc", KWLIST
,
1296 convbin
, &n
, &hszobj
, &mszobj
, &tszobj
))
1298 if (check_aead_encdec(ge
->e
->ops
->c
, &f
, n
.sz
,
1299 hszobj
, &hsz
, mszobj
, &msz
, tszobj
, &tsz
))
1301 if (GAEAD_REINIT(ge
->e
, n
.p
, n
.sz
, hsz
, msz
, tsz
))
1302 VALERR("bad aead parameter combination");
1303 gaea_sever(&ge
->aad
);
1304 ge
->f
= f
; ge
->hsz
= hsz
; ge
->msz
= msz
; ge
->tsz
= tsz
;
1309 static PyObject
*gaeemeth_encrypt(PyObject
*me
, PyObject
*arg
)
1311 gaeadenc_pyobj
*ge
= (gaeadenc_pyobj
*)me
;
1313 char *c
= 0; size_t csz
; buf b
;
1317 if (!PyArg_ParseTuple(arg
, "O&:encrypt", convbin
, &m
)) goto end
;
1318 if (ge
->f
&AEADF_AADFIRST
) {
1319 if ((ge
->f
&AEADF_PCHSZ
) && (ge
->aad ? ge
->aad
->hlen
: 0) != ge
->hsz
)
1320 VALERR("header doesn't match precommitted length");
1321 gaea_invalidate(ge
->aad
);
1323 if ((ge
->f
&AEADF_PCMSZ
) && m
.sz
> ge
->msz
- ge
->mlen
)
1324 VALERR("too large for precommitted message length");
1325 csz
= m
.sz
+ ge
->e
->ops
->c
->bufsz
; c
= xmalloc(csz
); buf_init(&b
, c
, csz
);
1326 err
= GAEAD_ENCRYPT(ge
->e
, m
.p
, m
.sz
, &b
); assert(!err
); (void)err
;
1327 buf_flip(&b
); rc
= bytestring_pywrapbuf(&b
); ge
->mlen
+= m
.sz
;
1333 static PyObject
*gaeemeth_done(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
1335 static const char *const kwlist
[] = { "tsz", "aad", 0 };
1336 gaeadenc_pyobj
*ge
= (gaeadenc_pyobj
*)me
;
1337 PyObject
*aad
= Py_None
;
1338 char *c
= 0; size_t csz
; buf b
;
1339 PyObject
*tszobj
= Py_None
; PyObject
*tag
; size_t tsz
;
1343 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "|OO:done", KWLIST
,
1346 if (tszobj
!= Py_None
&& !convszt(tszobj
, &tsz
)) goto end
;
1347 if (aad
!= Py_None
&&
1348 !PyObject_TypeCheck(aad
,
1349 (PyTypeObject
*)GCAEADENC_KEY(Py_TYPE(me
))->aad
))
1350 TYERR("wanted aad");
1351 if ((ge
->f
&AEADF_AADNDEP
) && aad
!= Py_None
&& aad
!= (PyObject
*)ge
->aad
)
1352 VALERR("mismatched aad");
1353 if ((ge
->f
&AEADF_PCHSZ
) &&
1354 (aad
== Py_None ?
0 : GAEADAAD_HLEN(aad
)) != ge
->hsz
)
1355 VALERR("header doesn't match precommitted length");
1356 if ((ge
->f
&AEADF_PCMSZ
) && ge
->mlen
!= ge
->msz
)
1357 VALERR("message doesn't match precommitted length");
1358 if (tszobj
== Py_None
) {
1359 if (ge
->f
&AEADF_PCTSZ
) tsz
= ge
->tsz
;
1360 else tsz
= keysz(0, ge
->e
->ops
->c
->tagsz
);
1362 if ((ge
->f
&AEADF_PCTSZ
) && tsz
!= ge
->tsz
)
1363 VALERR("tag length doesn't match precommitted value");
1364 if (keysz(tsz
, ge
->e
->ops
->c
->tagsz
) != tsz
) VALERR("bad tag length");
1366 csz
= ge
->e
->ops
->c
->bufsz
; c
= xmalloc(csz
); buf_init(&b
, c
, csz
);
1367 tag
= bytestring_pywrap(0, tsz
);
1368 err
= GAEAD_DONE(ge
->e
, aad
== Py_None ?
0 : GAEADAAD_A(aad
), &b
,
1370 assert(!err
); (void)err
;
1371 buf_flip(&b
); rc
= Py_BuildValue("NN", bytestring_pywrapbuf(&b
), tag
);
1377 static const PyMethodDef gaeadenc_pymethods
[] = {
1378 #define METHNAME(name) gaeemeth_##name
1379 NAMETH(aad
, "ENC.aad() -> AAD")
1380 KWMETH(reinit
, "ENC.reinit(NONCE, [hsz], [msz], [tsz])")
1381 METH (encrypt
, "ENC.encrypt(MSG) -> CT")
1382 KWMETH(done
, "ENC.done([tsz], [aad]) -> CT, TAG")
1387 static PyObject
*gaeaddec_pywrap(PyObject
*cobj
, gaead_dec
*d
, unsigned f
,
1388 size_t hsz
, size_t csz
, size_t tsz
)
1391 assert(cobj
); Py_INCREF(cobj
);
1392 gd
= PyObject_NEW(gaeaddec_pyobj
, (PyTypeObject
*)cobj
);
1393 gd
->d
= d
; gd
->f
= f
; gd
->hsz
= hsz
; gd
->csz
= csz
; gd
->tsz
= tsz
;
1394 gd
->aad
= 0; gd
->clen
= 0;
1395 return ((PyObject
*)gd
);
1398 static void gaeaddec_pydealloc(PyObject
*me
)
1400 gaeaddec_pyobj
*gd
= (gaeaddec_pyobj
*)me
;
1402 gaea_sever(&gd
->aad
); GAEAD_DESTROY(GAEADDEC_D(me
));
1403 Py_DECREF(Py_TYPE(me
)); FREEOBJ(me
);
1406 static PyObject
*gaedget_hsz(PyObject
*me
, void *hunoz
)
1408 if (GAEADDEC_F(me
)&AEADF_PCHSZ
) return getulong(GAEADDEC_HSZ(me
));
1412 static PyObject
*gaedget_csz(PyObject
*me
, void *hunoz
)
1414 if (GAEADDEC_F(me
)&AEADF_PCMSZ
) return getulong(GAEADDEC_CSZ(me
));
1418 static PyObject
*gaedget_tsz(PyObject
*me
, void *hunoz
)
1420 if (GAEADDEC_F(me
)&AEADF_PCTSZ
) return getulong(GAEADDEC_TSZ(me
));
1424 static PyObject
*gaedget_clen(PyObject
*me
, void *hunoz
)
1425 { return getulong(GAEADDEC_CLEN(me
)); }
1427 static const PyGetSetDef gaeaddec_pygetset
[] = {
1428 #define GETSETNAME(op, name) gaed##op##_##name
1429 GET (hsz
, "DEC.hsz -> precommitted header length or `None'")
1430 GET (csz
, "DEC.csz -> precommitted ciphertext length or `None'")
1431 GET (tsz
, "DEC.tsz -> precommitted tag length or `None'")
1432 GET (clen
, "DEC.clen -> ciphertext length so far")
1437 static PyObject
*gaedmeth_aad(PyObject
*me
)
1439 gaeaddec_pyobj
*gd
= (gaeaddec_pyobj
*)me
;
1441 if (!(gd
->f
&AEADF_AADNDEP
))
1442 return (gaeadaad_pywrap((PyObject
*)GCAEADDEC_KEY(Py_TYPE(gd
))->aad
,
1443 GAEAD_AAD(gd
->d
), 0, 0));
1446 gd
->aad
= (gaeadaad_pyobj
*)
1447 gaeadaad_pywrap((PyObject
*)GCAEADENC_KEY(Py_TYPE(gd
))->aad
,
1448 GAEAD_AAD(gd
->d
), gd
->f
&(AEADF_PCHSZ
| AEADF_NOAAD
),
1451 return ((PyObject
*)gd
->aad
);
1455 static PyObject
*gaedmeth_reinit(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
1457 static const char *const kwlist
[] = { "nonce", "hsz", "csz", "tsz", 0 };
1458 gaeaddec_pyobj
*gd
= (gaeaddec_pyobj
*)me
;
1460 PyObject
*hszobj
= Py_None
, *cszobj
= Py_None
, *tszobj
= Py_None
;
1461 size_t hsz
= 0, csz
= 0, tsz
= 0;
1464 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&|OOO:enc", KWLIST
,
1465 convbin
, &n
, &hszobj
, &cszobj
, &tszobj
))
1467 if (check_aead_encdec(gd
->d
->ops
->c
, &f
, n
.sz
,
1468 hszobj
, &hsz
, cszobj
, &csz
, tszobj
, &tsz
))
1470 if (GAEAD_REINIT(gd
->d
, n
.p
, n
.sz
, hsz
, csz
, tsz
))
1471 VALERR("bad aead parameter combination");
1472 gaea_sever(&gd
->aad
);
1473 gd
->f
= f
; gd
->hsz
= hsz
; gd
->csz
= csz
; gd
->tsz
= tsz
;
1478 static PyObject
*gaedmeth_decrypt(PyObject
*me
, PyObject
*arg
)
1480 gaeaddec_pyobj
*gd
= (gaeaddec_pyobj
*)me
;
1482 char *m
= 0; size_t msz
; buf b
;
1486 if (!PyArg_ParseTuple(arg
, "O&:decrypt", convbin
, &c
)) goto end
;
1487 if (gd
->f
&AEADF_AADFIRST
) {
1488 if ((gd
->f
&AEADF_PCHSZ
) && (gd
->aad ? gd
->aad
->hlen
: 0) != gd
->hsz
)
1489 VALERR("header doesn't match precommitted length");
1490 gaea_invalidate(gd
->aad
);
1492 if ((gd
->f
&AEADF_PCMSZ
) && c
.sz
> gd
->csz
- gd
->clen
)
1493 VALERR("too large for precommitted message length");
1494 msz
= c
.sz
+ gd
->d
->ops
->c
->bufsz
; m
= xmalloc(msz
); buf_init(&b
, m
, msz
);
1495 err
= GAEAD_DECRYPT(gd
->d
, c
.p
, c
.sz
, &b
); assert(!err
); (void)err
;
1496 buf_flip(&b
); rc
= bytestring_pywrapbuf(&b
); gd
->clen
+= c
.sz
;
1502 static PyObject
*gaedmeth_done(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
1504 static const char *const kwlist
[] = { "tag", "aad", 0 };
1505 gaeaddec_pyobj
*gd
= (gaeaddec_pyobj
*)me
;
1506 PyObject
*aad
= Py_None
;
1508 char *m
= 0; size_t msz
; buf b
;
1512 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&|O:done", KWLIST
,
1515 if (aad
!= Py_None
&&
1516 !PyObject_TypeCheck(aad
,
1517 (PyTypeObject
*)GCAEADENC_KEY(Py_TYPE(me
))->aad
))
1518 TYERR("wanted aad");
1519 if ((gd
->f
&AEADF_AADNDEP
) && aad
!= Py_None
&& aad
!= (PyObject
*)gd
->aad
)
1520 VALERR("mismatched aad");
1521 if ((gd
->f
&AEADF_PCHSZ
) &&
1522 (aad
== Py_None ?
0 : GAEADAAD_HLEN(aad
)) != gd
->hsz
)
1523 VALERR("header doesn't match precommitted length");
1524 if ((gd
->f
&AEADF_PCMSZ
) && gd
->clen
!= gd
->csz
)
1525 VALERR("message doesn't match precommitted length");
1526 if ((gd
->f
&AEADF_PCTSZ
) && t
.sz
!= gd
->tsz
)
1527 VALERR("tag length doesn't match precommitted value");
1528 if (keysz(t
.sz
, gd
->d
->ops
->c
->tagsz
) != t
.sz
) VALERR("bad tag length");
1529 msz
= gd
->d
->ops
->c
->bufsz
; m
= xmalloc(msz
); buf_init(&b
, m
, msz
);
1530 err
= GAEAD_DONE(gd
->d
, aad
== Py_None ?
0 : GAEADAAD_A(aad
),
1533 if (!err
) VALERR("decryption failed");
1534 buf_flip(&b
); rc
= bytestring_pywrapbuf(&b
);
1540 static const PyMethodDef gaeaddec_pymethods
[] = {
1541 #define METHNAME(name) gaedmeth_##name
1542 NAMETH(aad
, "DEC.aad() -> AAD")
1543 KWMETH(reinit
, "DEC.reinit(NONCE, [hsz], [csz], [tsz])")
1544 METH (decrypt
, "DEC.decrypt(CT) -> MSG")
1545 KWMETH(done
, "DEC.done(TAG, [aad]) -> MSG | None")
1550 static const PyTypeObject gcaead_pytype_skel
= {
1551 PyVarObject_HEAD_INIT(0, 0) /* Header */
1552 "GCAEAD", /* @tp_name@ */
1553 sizeof(gcaead_pyobj
), /* @tp_basicsize@ */
1554 0, /* @tp_itemsize@ */
1556 0, /* @tp_dealloc@ */
1558 0, /* @tp_getattr@ */
1559 0, /* @tp_setattr@ */
1560 0, /* @tp_compare@ */
1562 0, /* @tp_as_number@ */
1563 0, /* @tp_as_sequence@ */
1564 0, /* @tp_as_mapping@ */
1568 0, /* @tp_getattro@ */
1569 0, /* @tp_setattro@ */
1570 0, /* @tp_as_buffer@ */
1571 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
1572 Py_TPFLAGS_BASETYPE
,
1575 "Authenticated encryption (key) metaclass.",
1577 0, /* @tp_traverse@ */
1579 0, /* @tp_richcompare@ */
1580 0, /* @tp_weaklistoffset@ */
1582 0, /* @tp_iternext@ */
1583 0, /* @tp_methods@ */
1584 0, /* @tp_members@ */
1585 PYGETSET(gcaead
), /* @tp_getset@ */
1588 0, /* @tp_descr_get@ */
1589 0, /* @tp_descr_set@ */
1590 0, /* @tp_dictoffset@ */
1592 PyType_GenericAlloc
, /* @tp_alloc@ */
1593 abstract_pynew
, /* @tp_new@ */
1598 static const PyTypeObject gaeadkey_pytype_skel
= {
1599 PyVarObject_HEAD_INIT(0, 0) /* Header */
1600 "GAEKey", /* @tp_name@ */
1601 sizeof(gaeadkey_pyobj
), /* @tp_basicsize@ */
1602 0, /* @tp_itemsize@ */
1604 gaeadkey_pydealloc
, /* @tp_dealloc@ */
1606 0, /* @tp_getattr@ */
1607 0, /* @tp_setattr@ */
1608 0, /* @tp_compare@ */
1610 0, /* @tp_as_number@ */
1611 0, /* @tp_as_sequence@ */
1612 0, /* @tp_as_mapping@ */
1616 0, /* @tp_getattro@ */
1617 0, /* @tp_setattro@ */
1618 0, /* @tp_as_buffer@ */
1619 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
1620 Py_TPFLAGS_BASETYPE
,
1623 "Authenticated encryption key.",
1625 0, /* @tp_traverse@ */
1627 0, /* @tp_richcompare@ */
1628 0, /* @tp_weaklistoffset@ */
1630 0, /* @tp_iternext@ */
1631 PYMETHODS(gaeadkey
), /* @tp_methods@ */
1632 0, /* @tp_members@ */
1633 0, /* @tp_getset@ */
1636 0, /* @tp_descr_get@ */
1637 0, /* @tp_descr_set@ */
1638 0, /* @tp_dictoffset@ */
1640 PyType_GenericAlloc
, /* @tp_alloc@ */
1641 abstract_pynew
, /* @tp_new@ */
1646 static const PyTypeObject gcaeadaad_pytype_skel
= {
1647 PyVarObject_HEAD_INIT(0, 0) /* Header */
1648 "GAEAADClass", /* @tp_name@ */
1649 sizeof(gcaeadaad_pyobj
), /* @tp_basicsize@ */
1650 0, /* @tp_itemsize@ */
1652 0, /* @tp_dealloc@ */
1654 0, /* @tp_getattr@ */
1655 0, /* @tp_setattr@ */
1656 0, /* @tp_compare@ */
1658 0, /* @tp_as_number@ */
1659 0, /* @tp_as_sequence@ */
1660 0, /* @tp_as_mapping@ */
1664 0, /* @tp_getattro@ */
1665 0, /* @tp_setattro@ */
1666 0, /* @tp_as_buffer@ */
1667 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
1668 Py_TPFLAGS_BASETYPE
,
1671 "Authenticated encryption additional-data hash metaclass.",
1673 0, /* @tp_traverse@ */
1675 0, /* @tp_richcompare@ */
1676 0, /* @tp_weaklistoffset@ */
1678 0, /* @tp_iternext@ */
1679 0, /* @tp_methods@ */
1680 0, /* @tp_members@ */
1681 0, /* @tp_getset@ */
1684 0, /* @tp_descr_get@ */
1685 0, /* @tp_descr_set@ */
1686 0, /* @tp_dictoffset@ */
1688 PyType_GenericAlloc
, /* @tp_alloc@ */
1689 abstract_pynew
, /* @tp_new@ */
1694 static const PyTypeObject gaeadaad_pytype_skel
= {
1695 PyVarObject_HEAD_INIT(0, 0) /* Header */
1696 "GAEAAD", /* @tp_name@ */
1697 sizeof(gaeadaad_pyobj
), /* @tp_basicsize@ */
1698 0, /* @tp_itemsize@ */
1700 gaeadaad_pydealloc
, /* @tp_dealloc@ */
1702 0, /* @tp_getattr@ */
1703 0, /* @tp_setattr@ */
1704 0, /* @tp_compare@ */
1706 0, /* @tp_as_number@ */
1707 0, /* @tp_as_sequence@ */
1708 0, /* @tp_as_mapping@ */
1712 0, /* @tp_getattro@ */
1713 0, /* @tp_setattro@ */
1714 0, /* @tp_as_buffer@ */
1715 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
1716 Py_TPFLAGS_BASETYPE
,
1719 "Authenticated encryption AAD hash.",
1721 0, /* @tp_traverse@ */
1723 0, /* @tp_richcompare@ */
1724 0, /* @tp_weaklistoffset@ */
1726 0, /* @tp_iternext@ */
1727 PYMETHODS(gaeadaad
), /* @tp_methods@ */
1728 0, /* @tp_members@ */
1729 PYGETSET(gaeadaad
), /* @tp_getset@ */
1732 0, /* @tp_descr_get@ */
1733 0, /* @tp_descr_set@ */
1734 0, /* @tp_dictoffset@ */
1736 PyType_GenericAlloc
, /* @tp_alloc@ */
1737 abstract_pynew
, /* @tp_new@ */
1742 static const PyTypeObject gcaeadenc_pytype_skel
= {
1743 PyVarObject_HEAD_INIT(0, 0) /* Header */
1744 "GAEEncClass", /* @tp_name@ */
1745 sizeof(gcaeadenc_pyobj
), /* @tp_basicsize@ */
1746 0, /* @tp_itemsize@ */
1748 0, /* @tp_dealloc@ */
1750 0, /* @tp_getattr@ */
1751 0, /* @tp_setattr@ */
1752 0, /* @tp_compare@ */
1754 0, /* @tp_as_number@ */
1755 0, /* @tp_as_sequence@ */
1756 0, /* @tp_as_mapping@ */
1760 0, /* @tp_getattro@ */
1761 0, /* @tp_setattro@ */
1762 0, /* @tp_as_buffer@ */
1763 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
1764 Py_TPFLAGS_BASETYPE
,
1767 "Authenticated encryption operation metaclass.",
1769 0, /* @tp_traverse@ */
1771 0, /* @tp_richcompare@ */
1772 0, /* @tp_weaklistoffset@ */
1774 0, /* @tp_iternext@ */
1775 0, /* @tp_methods@ */
1776 0, /* @tp_members@ */
1777 0, /* @tp_getset@ */
1780 0, /* @tp_descr_get@ */
1781 0, /* @tp_descr_set@ */
1782 0, /* @tp_dictoffset@ */
1784 PyType_GenericAlloc
, /* @tp_alloc@ */
1785 abstract_pynew
, /* @tp_new@ */
1790 static const PyTypeObject gaeadenc_pytype_skel
= {
1791 PyVarObject_HEAD_INIT(0, 0) /* Header */
1792 "GAEEnc", /* @tp_name@ */
1793 sizeof(gaeadenc_pyobj
), /* @tp_basicsize@ */
1794 0, /* @tp_itemsize@ */
1796 gaeadenc_pydealloc
, /* @tp_dealloc@ */
1798 0, /* @tp_getattr@ */
1799 0, /* @tp_setattr@ */
1800 0, /* @tp_compare@ */
1802 0, /* @tp_as_number@ */
1803 0, /* @tp_as_sequence@ */
1804 0, /* @tp_as_mapping@ */
1808 0, /* @tp_getattro@ */
1809 0, /* @tp_setattro@ */
1810 0, /* @tp_as_buffer@ */
1811 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
1812 Py_TPFLAGS_BASETYPE
,
1815 "Authenticated encryption operation.",
1817 0, /* @tp_traverse@ */
1819 0, /* @tp_richcompare@ */
1820 0, /* @tp_weaklistoffset@ */
1822 0, /* @tp_iternext@ */
1823 PYMETHODS(gaeadenc
), /* @tp_methods@ */
1824 0, /* @tp_members@ */
1825 PYGETSET(gaeadenc
), /* @tp_getset@ */
1828 0, /* @tp_descr_get@ */
1829 0, /* @tp_descr_set@ */
1830 0, /* @tp_dictoffset@ */
1832 PyType_GenericAlloc
, /* @tp_alloc@ */
1833 abstract_pynew
, /* @tp_new@ */
1838 static const PyTypeObject gcaeaddec_pytype_skel
= {
1839 PyVarObject_HEAD_INIT(0, 0) /* Header */
1840 "GAEDecClass", /* @tp_name@ */
1841 sizeof(gcaeaddec_pyobj
), /* @tp_basicsize@ */
1842 0, /* @tp_itemsize@ */
1844 0, /* @tp_dealloc@ */
1846 0, /* @tp_getattr@ */
1847 0, /* @tp_setattr@ */
1848 0, /* @tp_compare@ */
1850 0, /* @tp_as_number@ */
1851 0, /* @tp_as_sequence@ */
1852 0, /* @tp_as_mapping@ */
1856 0, /* @tp_getattro@ */
1857 0, /* @tp_setattro@ */
1858 0, /* @tp_as_buffer@ */
1859 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
1860 Py_TPFLAGS_BASETYPE
,
1863 "Authenticated decryption operation metaclass.",
1865 0, /* @tp_traverse@ */
1867 0, /* @tp_richcompare@ */
1868 0, /* @tp_weaklistoffset@ */
1870 0, /* @tp_iternext@ */
1871 0, /* @tp_methods@ */
1872 0, /* @tp_members@ */
1873 0, /* @tp_getset@ */
1876 0, /* @tp_descr_get@ */
1877 0, /* @tp_descr_set@ */
1878 0, /* @tp_dictoffset@ */
1880 PyType_GenericAlloc
, /* @tp_alloc@ */
1881 abstract_pynew
, /* @tp_new@ */
1886 static const PyTypeObject gaeaddec_pytype_skel
= {
1887 PyVarObject_HEAD_INIT(0, 0) /* Header */
1888 "GAEDec", /* @tp_name@ */
1889 sizeof(gaeaddec_pyobj
), /* @tp_basicsize@ */
1890 0, /* @tp_itemsize@ */
1892 gaeaddec_pydealloc
, /* @tp_dealloc@ */
1894 0, /* @tp_getattr@ */
1895 0, /* @tp_setattr@ */
1896 0, /* @tp_compare@ */
1898 0, /* @tp_as_number@ */
1899 0, /* @tp_as_sequence@ */
1900 0, /* @tp_as_mapping@ */
1904 0, /* @tp_getattro@ */
1905 0, /* @tp_setattro@ */
1906 0, /* @tp_as_buffer@ */
1907 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
1908 Py_TPFLAGS_BASETYPE
,
1911 "Authenticated decryption operation.",
1913 0, /* @tp_traverse@ */
1915 0, /* @tp_richcompare@ */
1916 0, /* @tp_weaklistoffset@ */
1918 0, /* @tp_iternext@ */
1919 PYMETHODS(gaeaddec
), /* @tp_methods@ */
1920 0, /* @tp_members@ */
1921 PYGETSET(gaeaddec
), /* @tp_getset@ */
1924 0, /* @tp_descr_get@ */
1925 0, /* @tp_descr_set@ */
1926 0, /* @tp_dictoffset@ */
1928 PyType_GenericAlloc
, /* @tp_alloc@ */
1929 abstract_pynew
, /* @tp_new@ */
1934 /*----- Hash functions ----------------------------------------------------*/
1936 PyTypeObject
*gchash_pytype
;
1937 static PyTypeObject
*ghash_pytype
;
1938 PyObject
*sha_pyobj
, *has160_pyobj
;
1940 typedef struct ghash_pyobj
{
1945 #define GHASH_PYCHECK(o) PyObject_TypeCheck((o), ghash_pytype)
1946 #define GHASH_H(o) (((ghash_pyobj *)(o))->h)
1948 CONVFUNC(gchash
, gchash
*, GCHASH_CH
)
1949 CONVFUNC(ghash
, ghash
*, GHASH_H
)
1951 static PyObject
*ghash_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
1953 static const char *const kwlist
[] = { 0 };
1954 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, ":new", KWLIST
))
1956 return (ghash_pywrap((PyObject
*)ty
, GH_INIT(GCHASH_CH(ty
))));
1961 static PyObject
*gchash_pywrap(gchash
*ch
)
1963 gchash_pyobj
*g
= newtype(gchash_pytype
, 0, ch
->name
);
1965 g
->ty
.ht_type
.tp_basicsize
= sizeof(ghash_pyobj
);
1966 g
->ty
.ht_type
.tp_base
= ghash_pytype
;
1967 Py_INCREF(ghash_pytype
);
1968 g
->ty
.ht_type
.tp_flags
= (Py_TPFLAGS_DEFAULT
|
1969 Py_TPFLAGS_BASETYPE
|
1970 Py_TPFLAGS_HEAPTYPE
);
1971 g
->ty
.ht_type
.tp_alloc
= PyType_GenericAlloc
;
1972 g
->ty
.ht_type
.tp_free
= 0;
1973 g
->ty
.ht_type
.tp_new
= ghash_pynew
;
1974 typeready(&g
->ty
.ht_type
);
1975 return ((PyObject
*)g
);
1978 PyObject
*ghash_pywrap(PyObject
*cobj
, ghash
*h
)
1981 if (!cobj
) cobj
= gchash_pywrap((/*unconst*/ gchash
*)GH_CLASS(h
));
1982 else Py_INCREF(cobj
);
1983 g
= PyObject_NEW(ghash_pyobj
, (PyTypeObject
*)cobj
);
1985 return ((PyObject
*)g
);
1988 static void ghash_pydealloc(PyObject
*me
)
1990 GH_DESTROY(GHASH_H(me
));
1991 Py_DECREF(Py_TYPE(me
));
1995 static PyObject
*gchget_name(PyObject
*me
, void *hunoz
)
1996 { return (TEXT_FROMSTR(GCHASH_CH(me
)->name
)); }
1998 static PyObject
*gchget_hashsz(PyObject
*me
, void *hunoz
)
1999 { return (PyInt_FromLong(GCHASH_CH(me
)->hashsz
)); }
2001 static PyObject
*gchget_bufsz(PyObject
*me
, void *hunoz
)
2002 { return (PyInt_FromLong(GCHASH_CH(me
)->bufsz
)); }
2004 static PyObject
*ghmeth_copy(PyObject
*me
)
2005 { return (ghash_pywrap((PyObject
*)Py_TYPE(me
), GH_COPY(GHASH_H(me
)))); }
2007 static PyObject
*ghmeth_hash(PyObject
*me
, PyObject
*arg
)
2010 if (!PyArg_ParseTuple(arg
, "O&:hash", convbin
, &m
)) return (0);
2011 GH_HASH(GHASH_H(me
), m
.p
, m
.sz
);
2015 #define GHMETH_HASHU_(n, W, w) \
2016 static PyObject *ghmeth_hashu##w(PyObject *me, PyObject *arg) \
2019 if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) return (0); \
2020 GH_HASHU##W(GHASH_H(me), x); \
2023 DOUINTCONV(GHMETH_HASHU_
)
2025 #define GHMETH_HASHBUF_(n, W, w) \
2026 static PyObject *ghmeth_hashbuf##w(PyObject *me, PyObject *arg) \
2029 if (!PyArg_ParseTuple(arg, "O&:hashbuf" #w, convbin, &in)) goto end; \
2030 if (in.sz > MASK##n) TYERR("string too long"); \
2031 GH_HASHBUF##W(GHASH_H(me), in.p, in.sz); \
2036 DOUINTCONV(GHMETH_HASHBUF_
)
2038 static PyObject
*ghmeth_hashstrz(PyObject
*me
, PyObject
*arg
)
2041 if (!PyArg_ParseTuple(arg
, "s:hashstrz", &p
)) return (0);
2042 GH_HASHSTRZ(GHASH_H(me
), p
);
2046 static PyObject
*ghmeth_done(PyObject
*me
)
2050 g
= GH_COPY(GHASH_H(me
));
2051 rc
= bytestring_pywrap(0, g
->ops
->c
->hashsz
);
2052 GH_DONE(g
, BIN_PTR(rc
));
2057 static const PyGetSetDef gchash_pygetset
[] = {
2058 #define GETSETNAME(op, name) gch##op##_##name
2059 GET (bufsz
, "CH.bufsz -> hash buffer size, or zero")
2060 GET (hashsz
, "CH.hashsz -> hash output size")
2061 GET (name
, "CH.name -> name of this kind of hash")
2066 static const PyMethodDef ghash_pymethods
[] = {
2067 #define METHNAME(name) ghmeth_##name
2068 NAMETH(copy
, "H.copy() -> HH")
2069 METH (hash
, "H.hash(M)")
2070 #define METHU_(n, W, w) METH(hashu##w, "H.hashu" #w "(WORD)")
2073 #define METHBUF_(n, W, w) METH(hashbuf##w, "H.hashbuf" #w "(BYTES)")
2074 DOUINTCONV(METHBUF_
)
2076 METH (hashstrz
, "H.hashstrz(STRING)")
2077 NAMETH(done
, "H.done() -> HASH")
2082 static const PyTypeObject gchash_pytype_skel
= {
2083 PyVarObject_HEAD_INIT(0, 0) /* Header */
2084 "GCHash", /* @tp_name@ */
2085 sizeof(gchash_pyobj
), /* @tp_basicsize@ */
2086 0, /* @tp_itemsize@ */
2088 0, /* @tp_dealloc@ */
2090 0, /* @tp_getattr@ */
2091 0, /* @tp_setattr@ */
2092 0, /* @tp_compare@ */
2094 0, /* @tp_as_number@ */
2095 0, /* @tp_as_sequence@ */
2096 0, /* @tp_as_mapping@ */
2100 0, /* @tp_getattro@ */
2101 0, /* @tp_setattro@ */
2102 0, /* @tp_as_buffer@ */
2103 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
2104 Py_TPFLAGS_BASETYPE
,
2107 "Hash function metaclass.",
2109 0, /* @tp_traverse@ */
2111 0, /* @tp_richcompare@ */
2112 0, /* @tp_weaklistoffset@ */
2114 0, /* @tp_iternext@ */
2115 0, /* @tp_methods@ */
2116 0, /* @tp_members@ */
2117 PYGETSET(gchash
), /* @tp_getset@ */
2120 0, /* @tp_descr_get@ */
2121 0, /* @tp_descr_set@ */
2122 0, /* @tp_dictoffset@ */
2124 PyType_GenericAlloc
, /* @tp_alloc@ */
2125 abstract_pynew
, /* @tp_new@ */
2130 static const PyTypeObject ghash_pytype_skel
= {
2131 PyVarObject_HEAD_INIT(0, 0) /* Header */
2132 "GHash", /* @tp_name@ */
2133 sizeof(ghash_pyobj
), /* @tp_basicsize@ */
2134 0, /* @tp_itemsize@ */
2136 ghash_pydealloc
, /* @tp_dealloc@ */
2138 0, /* @tp_getattr@ */
2139 0, /* @tp_setattr@ */
2140 0, /* @tp_compare@ */
2142 0, /* @tp_as_number@ */
2143 0, /* @tp_as_sequence@ */
2144 0, /* @tp_as_mapping@ */
2148 0, /* @tp_getattro@ */
2149 0, /* @tp_setattro@ */
2150 0, /* @tp_as_buffer@ */
2151 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
2152 Py_TPFLAGS_BASETYPE
,
2155 "Hash function, abstract base class.",
2157 0, /* @tp_traverse@ */
2159 0, /* @tp_richcompare@ */
2160 0, /* @tp_weaklistoffset@ */
2162 0, /* @tp_iternext@ */
2163 PYMETHODS(ghash
), /* @tp_methods@ */
2164 0, /* @tp_members@ */
2165 0, /* @tp_getset@ */
2168 0, /* @tp_descr_get@ */
2169 0, /* @tp_descr_set@ */
2170 0, /* @tp_dictoffset@ */
2172 PyType_GenericAlloc
, /* @tp_alloc@ */
2173 abstract_pynew
, /* @tp_new@ */
2178 /*----- Message authentication --------------------------------------------*/
2180 static PyTypeObject
*gcmac_pytype
, *gmac_pytype
, *gmhash_pytype
;
2182 typedef struct gcmac_pyobj
{
2183 PyHeapTypeObject ty
;
2187 #define GCMAC_PYCHECK(o) PyObject_TypeCheck((o), gcmac_pytype)
2188 #define GCMAC_CM(o) (((gcmac_pyobj *)(o))->cm)
2189 #define GCMAC_F(o) (((gcmac_pyobj *)(o))->f)
2190 CONVFUNC(gcmac
, gcmac
*, GCMAC_CM
)
2191 static PyObject
*gmac_pywrap(PyObject
*, gmac
*);
2193 typedef struct gmac_pyobj
{
2194 PyHeapTypeObject ty
;
2198 extern PyTypeObject
*gmac_pytype
;
2199 #define GMAC_PYCHECK(o) PyObject_TypeCheck((o), gmac_pytype)
2200 #define GMAC_M(o) (((gmac_pyobj *)(o))->m)
2201 #define GMAC_F(o) (((gmac_pyobj *)(o))->f)
2202 extern PyObject
*gmac_pywrap(PyObject
*, gmac
*);
2203 extern int convgmac(PyObject
*, void *);
2205 static PyObject
*gmac_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
2207 static const char *const kwlist
[] = { "k", 0 };
2210 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&:new", KWLIST
, convbin
, &k
))
2212 if (keysz(k
.sz
, GCMAC_CM(ty
)->keysz
) != k
.sz
) VALERR("bad key length");
2213 return (gmac_pywrap((PyObject
*)ty
,
2214 GM_KEY(GCMAC_CM(ty
), k
.p
, k
.sz
)));
2219 static PyObject
*gmhash_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
2221 static const char *const kwlist
[] = { 0 };
2224 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, ":new", KWLIST
)) return (0);
2225 g
= PyObject_NEW(ghash_pyobj
, ty
);
2226 g
->h
= GM_INIT(GMAC_M(ty
));
2228 return ((PyObject
*)g
);
2231 static PyObject
*gcmac_pywrap(gcmac
*cm
)
2233 gcmac_pyobj
*g
= newtype(gcmac_pytype
, 0, cm
->name
);
2235 g
->ty
.ht_type
.tp_basicsize
= sizeof(gmac_pyobj
);
2236 g
->ty
.ht_type
.tp_base
= gmac_pytype
;
2237 Py_INCREF(gmac_pytype
);
2238 g
->ty
.ht_type
.tp_flags
= (Py_TPFLAGS_DEFAULT
|
2239 Py_TPFLAGS_BASETYPE
|
2240 Py_TPFLAGS_HEAPTYPE
);
2241 g
->ty
.ht_type
.tp_alloc
= PyType_GenericAlloc
;
2242 g
->ty
.ht_type
.tp_free
= 0;
2243 g
->ty
.ht_type
.tp_new
= gmac_pynew
;
2244 typeready(&g
->ty
.ht_type
);
2245 return ((PyObject
*)g
);
2248 static PyObject
*gmac_pywrap(PyObject
*cobj
, gmac
*m
)
2251 if (!cobj
) cobj
= gcmac_pywrap((/*unconst*/ gcmac
*)GM_CLASS(m
));
2252 else Py_INCREF(cobj
);
2253 g
= newtype((PyTypeObject
*)cobj
, 0, 0);
2254 g
->ty
.ht_type
.tp_basicsize
= sizeof(ghash_pyobj
);
2255 g
->ty
.ht_name
= TEXT_FORMAT("%s(keyed)", m
->ops
->c
->name
);
2256 g
->ty
.ht_type
.tp_name
= TEXT_PTR(g
->ty
.ht_name
);
2257 g
->ty
.ht_type
.tp_base
= gmhash_pytype
;
2258 Py_INCREF(gmac_pytype
);
2259 g
->ty
.ht_type
.tp_flags
= (Py_TPFLAGS_DEFAULT
|
2260 Py_TPFLAGS_BASETYPE
|
2261 Py_TPFLAGS_HEAPTYPE
);
2262 g
->ty
.ht_type
.tp_alloc
= PyType_GenericAlloc
;
2263 g
->ty
.ht_type
.tp_free
= 0;
2264 g
->ty
.ht_type
.tp_new
= gmhash_pynew
;
2265 typeready(&g
->ty
.ht_type
);
2267 return ((PyObject
*)g
);
2270 static void gmac_pydealloc(PyObject
*me
)
2272 GM_DESTROY(GMAC_M(me
));
2273 Py_DECREF(Py_TYPE(me
));
2274 PyType_Type
.tp_dealloc(me
);
2277 static PyObject
*gcmget_name(PyObject
*me
, void *hunoz
)
2278 { return (TEXT_FROMSTR(GCMAC_CM(me
)->name
)); }
2280 static PyObject
*gcmget_keysz(PyObject
*me
, void *hunoz
)
2281 { return (keysz_pywrap(GCMAC_CM(me
)->keysz
)); }
2283 static PyObject
*gcmget_tagsz(PyObject
*me
, void *hunoz
)
2284 { return (PyInt_FromLong(GCMAC_CM(me
)->hashsz
)); }
2286 static const PyGetSetDef gcmac_pygetset
[] = {
2287 #define GETSETNAME(op, name) gcm##op##_##name
2288 GET (keysz
, "CM.keysz -> acceptable key sizes")
2289 GET (tagsz
, "CM.tagsz -> MAC output size")
2290 GET (name
, "CM.name -> name of this kind of MAC")
2295 static const PyTypeObject gcmac_pytype_skel
= {
2296 PyVarObject_HEAD_INIT(0, 0) /* Header */
2297 "GCMAC", /* @tp_name@ */
2298 sizeof(gchash_pyobj
), /* @tp_basicsize@ */
2299 0, /* @tp_itemsize@ */
2301 0, /* @tp_dealloc@ */
2303 0, /* @tp_getattr@ */
2304 0, /* @tp_setattr@ */
2305 0, /* @tp_compare@ */
2307 0, /* @tp_as_number@ */
2308 0, /* @tp_as_sequence@ */
2309 0, /* @tp_as_mapping@ */
2313 0, /* @tp_getattro@ */
2314 0, /* @tp_setattro@ */
2315 0, /* @tp_as_buffer@ */
2316 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
2317 Py_TPFLAGS_BASETYPE
,
2320 "Message authentication code metametaclass.",
2322 0, /* @tp_traverse@ */
2324 0, /* @tp_richcompare@ */
2325 0, /* @tp_weaklistoffset@ */
2327 0, /* @tp_iternext@ */
2328 0, /* @tp_methods@ */
2329 0, /* @tp_members@ */
2330 PYGETSET(gcmac
), /* @tp_getset@ */
2333 0, /* @tp_descr_get@ */
2334 0, /* @tp_descr_set@ */
2335 0, /* @tp_dictoffset@ */
2337 PyType_GenericAlloc
, /* @tp_alloc@ */
2338 abstract_pynew
, /* @tp_new@ */
2343 static const PyTypeObject gmac_pytype_skel
= {
2344 PyVarObject_HEAD_INIT(0, 0) /* Header */
2345 "GMAC", /* @tp_name@ */
2346 sizeof(gmac_pyobj
), /* @tp_basicsize@ */
2347 0, /* @tp_itemsize@ */
2349 gmac_pydealloc
, /* @tp_dealloc@ */
2351 0, /* @tp_getattr@ */
2352 0, /* @tp_setattr@ */
2353 0, /* @tp_compare@ */
2355 0, /* @tp_as_number@ */
2356 0, /* @tp_as_sequence@ */
2357 0, /* @tp_as_mapping@ */
2361 0, /* @tp_getattro@ */
2362 0, /* @tp_setattro@ */
2363 0, /* @tp_as_buffer@ */
2364 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
2365 Py_TPFLAGS_BASETYPE
,
2368 "Message authentication code metaclass, abstract base class.",
2370 0, /* @tp_traverse@ */
2372 0, /* @tp_richcompare@ */
2373 0, /* @tp_weaklistoffset@ */
2375 0, /* @tp_iternext@ */
2376 0, /* @tp_methods@ */
2377 0, /* @tp_members@ */
2378 0, /* @tp_getset@ */
2381 0, /* @tp_descr_get@ */
2382 0, /* @tp_descr_set@ */
2383 0, /* @tp_dictoffset@ */
2385 PyType_GenericAlloc
, /* @tp_alloc@ */
2386 abstract_pynew
, /* @tp_new@ */
2391 static const PyTypeObject gmhash_pytype_skel
= {
2392 PyVarObject_HEAD_INIT(0, 0) /* Header */
2393 "GMACHash", /* @tp_name@ */
2394 sizeof(ghash_pyobj
), /* @tp_basicsize@ */
2395 0, /* @tp_itemsize@ */
2397 ghash_pydealloc
, /* @tp_dealloc@ */
2399 0, /* @tp_getattr@ */
2400 0, /* @tp_setattr@ */
2401 0, /* @tp_compare@ */
2403 0, /* @tp_as_number@ */
2404 0, /* @tp_as_sequence@ */
2405 0, /* @tp_as_mapping@ */
2409 0, /* @tp_getattro@ */
2410 0, /* @tp_setattro@ */
2411 0, /* @tp_as_buffer@ */
2412 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
2413 Py_TPFLAGS_BASETYPE
,
2416 "Message authentication code, abstract base class.",
2418 0, /* @tp_traverse@ */
2420 0, /* @tp_richcompare@ */
2421 0, /* @tp_weaklistoffset@ */
2423 0, /* @tp_iternext@ */
2424 0, /* @tp_methods@ */
2425 0, /* @tp_members@ */
2426 0, /* @tp_getset@ */
2429 0, /* @tp_descr_get@ */
2430 0, /* @tp_descr_set@ */
2431 0, /* @tp_dictoffset@ */
2433 PyType_GenericAlloc
, /* @tp_alloc@ */
2434 abstract_pynew
, /* @tp_new@ */
2439 /*----- Special snowflake for Poly1305 ------------------------------------*/
2441 PyTypeObject
*poly1305cls_pytype
, *poly1305key_pytype
, *poly1305hash_pytype
;
2443 typedef struct poly1305key_pyobj
{
2444 PyHeapTypeObject ty
;
2446 } poly1305key_pyobj
;
2448 typedef struct poly1305hash_pyobj
{
2453 } poly1305hash_pyobj
;
2455 #define P1305_F(o) (((poly1305hash_pyobj *)(o))->f)
2456 #define P1305_CTX(o) (&((poly1305hash_pyobj *)(o))->ctx)
2457 CONVFUNC(poly1305hash
, poly1305_ctx
*, P1305_CTX
)
2459 static PyObject
*poly1305hash_pynew(PyTypeObject
*ty
,
2460 PyObject
*arg
, PyObject
*kw
)
2462 static const char *const kwlist
[] = { "mask", 0 };
2463 poly1305key_pyobj
*pk
= (poly1305key_pyobj
*)ty
;
2464 poly1305hash_pyobj
*ph
;
2465 struct bin m
= { 0, 0 };
2467 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "|O&:new", KWLIST
, convbin
, &m
))
2469 if (m
.p
&& m
.sz
!= POLY1305_MASKSZ
) VALERR("bad mask length");
2470 ph
= PyObject_NEW(poly1305hash_pyobj
, ty
);
2472 if (m
.p
) ph
->f
|= f_mask
;
2473 poly1305_macinit(&ph
->ctx
, &pk
->k
, m
.p
);
2475 return ((PyObject
*)ph
);
2480 static PyObject
*poly1305key_pynew(PyTypeObject
*ty
,
2481 PyObject
*arg
, PyObject
*kw
)
2483 static const char *const kwlist
[] = { "k", 0 };
2484 poly1305key_pyobj
*pk
;
2487 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&:new", KWLIST
, convbin
, &k
))
2489 if (keysz(k
.sz
, poly1305_keysz
) != k
.sz
) VALERR("bad key length");
2491 pk
= newtype(ty
, 0, 0);
2492 pk
->ty
.ht_name
= TEXT_FROMSTR("poly1305(keyed)");
2493 pk
->ty
.ht_type
.tp_basicsize
= sizeof(poly1305hash_pyobj
);
2494 pk
->ty
.ht_type
.tp_name
= TEXT_PTR(pk
->ty
.ht_name
);
2495 pk
->ty
.ht_type
.tp_base
= poly1305hash_pytype
;
2496 Py_INCREF(poly1305key_pytype
);
2497 pk
->ty
.ht_type
.tp_flags
= (Py_TPFLAGS_DEFAULT
|
2498 Py_TPFLAGS_BASETYPE
|
2499 Py_TPFLAGS_HEAPTYPE
);
2500 pk
->ty
.ht_type
.tp_alloc
= PyType_GenericAlloc
;
2501 pk
->ty
.ht_type
.tp_free
= 0;
2502 pk
->ty
.ht_type
.tp_new
= poly1305hash_pynew
;
2503 typeready(&pk
->ty
.ht_type
);
2505 poly1305_keyinit(&pk
->k
, k
.p
, k
.sz
);
2506 return ((PyObject
*)pk
);
2512 static PyObject
*poly1305clsget_name(PyObject
*me
, void *hunoz
)
2513 { return (TEXT_FROMSTR("poly1305")); }
2515 static PyObject
*poly1305clsget_keysz(PyObject
*me
, void *hunoz
)
2516 { return (keysz_pywrap(poly1305_keysz
)); }
2518 static PyObject
*poly1305clsget_masksz(PyObject
*me
, void *hunoz
)
2519 { return (PyInt_FromLong(POLY1305_MASKSZ
)); }
2521 static PyObject
*poly1305clsget_tagsz(PyObject
*me
, void *hunoz
)
2522 { return (PyInt_FromLong(POLY1305_TAGSZ
)); }
2524 static PyObject
*polymeth_copy(PyObject
*me
)
2526 poly1305hash_pyobj
*ph
;
2527 ph
= PyObject_NEW(poly1305hash_pyobj
, Py_TYPE(me
));
2528 poly1305_copy(&ph
->ctx
, P1305_CTX(me
));
2529 Py_INCREF(Py_TYPE(me
));
2530 return ((PyObject
*)ph
);
2533 static PyObject
*polymeth_hash(PyObject
*me
, PyObject
*arg
)
2536 if (!PyArg_ParseTuple(arg
, "O&:hash", convbin
, &m
)) return (0);
2537 poly1305_hash(P1305_CTX(me
), m
.p
, m
.sz
);
2541 #define POLYMETH_HASHU_(n, W, w) \
2542 static PyObject *polymeth_hashu##w(PyObject *me, PyObject *arg) \
2546 if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) return (0); \
2547 STORE##W(b, x); poly1305_hash(P1305_CTX(me), b, sizeof(b)); \
2550 DOUINTCONV(POLYMETH_HASHU_
)
2552 #define POLYMETH_HASHBUF_(n, W, w) \
2553 static PyObject *polymeth_hashbuf##w(PyObject *me, PyObject *arg) \
2557 if (!PyArg_ParseTuple(arg, "O&:hashbuf" #w, convbin, &in)) goto end; \
2558 if (in.sz > MASK##n) TYERR("string too long"); \
2559 STORE##W(b, in.sz); poly1305_hash(P1305_CTX(me), b, sizeof(b)); \
2560 poly1305_hash(P1305_CTX(me), in.p, in.sz); \
2565 DOUINTCONV(POLYMETH_HASHBUF_
)
2567 static PyObject
*polymeth_hashstrz(PyObject
*me
, PyObject
*arg
)
2570 if (!PyArg_ParseTuple(arg
, "s:hashstrz", &p
)) return (0);
2571 poly1305_hash(P1305_CTX(me
), p
, strlen(p
) + 1);
2575 static PyObject
*polymeth_flush(PyObject
*me
)
2576 { poly1305_flush(P1305_CTX(me
)); RETURN_ME
; }
2578 static PyObject
*polymeth_flushzero(PyObject
*me
)
2579 { poly1305_flushzero(P1305_CTX(me
)); RETURN_ME
; }
2581 static PyObject
*polymeth_concat(PyObject
*me
, PyObject
*arg
)
2583 PyObject
*pre
, *suff
;
2584 if (!PyArg_ParseTuple(arg
, "OO:concat", &pre
, &suff
)) return (0);
2585 if (!PyObject_TypeCheck(pre
, poly1305hash_pytype
) ||
2586 !PyObject_TypeCheck(suff
, poly1305hash_pytype
))
2587 TYERR("wanted a poly1305hash");
2588 if (Py_TYPE(me
) != Py_TYPE(pre
) || Py_TYPE(me
) != Py_TYPE(suff
))
2589 TYERR("key mismatch");
2590 if (P1305_CTX(pre
)->nbuf
) VALERR("prefix is not block-aligned");
2591 poly1305_concat(P1305_CTX(me
), P1305_CTX(pre
), P1305_CTX(suff
));
2597 static PyObject
*polymeth_done(PyObject
*me
)
2600 if (!(P1305_F(me
) & f_mask
)) VALERR("no mask");
2601 rc
= bytestring_pywrap(0, POLY1305_TAGSZ
);
2602 poly1305_done(P1305_CTX(me
), BIN_PTR(rc
));
2608 static const PyGetSetDef poly1305cls_pygetset
[] = {
2609 #define GETSETNAME(op, name) poly1305cls##op##_##name
2610 GET (keysz
, "PC.keysz -> acceptable key sizes")
2611 GET (masksz
, "PC.masksz -> mask size")
2612 GET (tagsz
, "PC.tagsz -> MAC output size")
2613 GET (name
, "PC.name -> name of this kind of MAC")
2618 static const PyMethodDef poly1305hash_pymethods
[] = {
2619 #define METHNAME(name) polymeth_##name
2620 NAMETH(copy
, "P.copy() -> PP")
2621 METH (hash
, "P.hash(M)")
2622 #define METHU_(n, W, w) METH(hashu##w, "P.hashu" #w "(WORD)")
2625 #define METHBUF_(n, W, w) METH(hashbuf##w, "P.hashbuf" #w "(BYTES)")
2626 DOUINTCONV(METHBUF_
)
2628 METH (hashstrz
, "P.hashstrz(STRING)")
2629 NAMETH(flush
, "P.flush()")
2630 NAMETH(flushzero
, "P.flushzero()")
2631 METH (concat
, "P.concat(PREFIX, SUFFIX)")
2632 NAMETH(done
, "P.done() -> TAG")
2637 static const PyTypeObject poly1305cls_pytype_skel
= {
2638 PyVarObject_HEAD_INIT(0, 0) /* Header */
2639 "Poly1305Class", /* @tp_name@ */
2640 sizeof(PyHeapTypeObject
), /* @tp_basicsize@ */
2641 0, /* @tp_itemsize@ */
2643 0, /* @tp_dealloc@ */
2645 0, /* @tp_getattr@ */
2646 0, /* @tp_setattr@ */
2647 0, /* @tp_compare@ */
2649 0, /* @tp_as_number@ */
2650 0, /* @tp_as_sequence@ */
2651 0, /* @tp_as_mapping@ */
2655 0, /* @tp_getattro@ */
2656 0, /* @tp_setattro@ */
2657 0, /* @tp_as_buffer@ */
2658 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
2659 Py_TPFLAGS_BASETYPE
,
2662 "Poly1305 metametaclass. Best not to ask.",
2664 0, /* @tp_traverse@ */
2666 0, /* @tp_richcompare@ */
2667 0, /* @tp_weaklistoffset@ */
2669 0, /* @tp_iternext@ */
2670 0, /* @tp_methods@ */
2671 0, /* @tp_members@ */
2672 PYGETSET(poly1305cls
), /* @tp_getset@ */
2675 0, /* @tp_descr_get@ */
2676 0, /* @tp_descr_set@ */
2677 0, /* @tp_dictoffset@ */
2679 PyType_GenericAlloc
, /* @tp_alloc@ */
2680 abstract_pynew
, /* @tp_new@ */
2685 static const PyTypeObject poly1305key_pytype_skel
= {
2686 PyVarObject_HEAD_INIT(0, 0) /* Header */
2687 "poly1305", /* @tp_name@ */
2688 sizeof(poly1305key_pyobj
), /* @tp_basicsize@ */
2689 0, /* @tp_itemsize@ */
2691 0, /* @tp_dealloc@ */
2693 0, /* @tp_getattr@ */
2694 0, /* @tp_setattr@ */
2695 0, /* @tp_compare@ */
2697 0, /* @tp_as_number@ */
2698 0, /* @tp_as_sequence@ */
2699 0, /* @tp_as_mapping@ */
2703 0, /* @tp_getattro@ */
2704 0, /* @tp_setattro@ */
2705 0, /* @tp_as_buffer@ */
2706 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
2707 Py_TPFLAGS_BASETYPE
,
2710 "poly1305(K): Poly1305 key.",
2712 0, /* @tp_traverse@ */
2714 0, /* @tp_richcompare@ */
2715 0, /* @tp_weaklistoffset@ */
2717 0, /* @tp_iternext@ */
2718 0, /* @tp_methods@ */
2719 0, /* @tp_members@ */
2720 0, /* @tp_getset@ */
2723 0, /* @tp_descr_get@ */
2724 0, /* @tp_descr_set@ */
2725 0, /* @tp_dictoffset@ */
2727 PyType_GenericAlloc
, /* @tp_alloc@ */
2728 poly1305key_pynew
, /* @tp_new@ */
2733 static const PyTypeObject poly1305hash_pytype_skel
= {
2734 PyVarObject_HEAD_INIT(0, 0) /* Header */
2735 "Poly1305Hash", /* @tp_name@ */
2736 sizeof(poly1305hash_pyobj
), /* @tp_basicsize@ */
2737 0, /* @tp_itemsize@ */
2739 0, /* @tp_dealloc@ */
2741 0, /* @tp_getattr@ */
2742 0, /* @tp_setattr@ */
2743 0, /* @tp_compare@ */
2745 0, /* @tp_as_number@ */
2746 0, /* @tp_as_sequence@ */
2747 0, /* @tp_as_mapping@ */
2751 0, /* @tp_getattro@ */
2752 0, /* @tp_setattro@ */
2753 0, /* @tp_as_buffer@ */
2754 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
2755 Py_TPFLAGS_BASETYPE
,
2758 "Poly1305 MAC context base class.",
2760 0, /* @tp_traverse@ */
2762 0, /* @tp_richcompare@ */
2763 0, /* @tp_weaklistoffset@ */
2765 0, /* @tp_iternext@ */
2766 PYMETHODS(poly1305hash
), /* @tp_methods@ */
2767 0, /* @tp_members@ */
2768 0, /* @tp_getset@ */
2771 0, /* @tp_descr_get@ */
2772 0, /* @tp_descr_set@ */
2773 0, /* @tp_dictoffset@ */
2775 PyType_GenericAlloc
, /* @tp_alloc@ */
2776 abstract_pynew
, /* @tp_new@ */
2781 /*----- Special snowflake for HSalsa and HChaCha --------------------------*/
2783 #define DEF_HDANCE(DANCE, HDANCE, dance, hdance) \
2784 static PyObject *meth_##hdance##_prf(PyObject *me, PyObject *arg) \
2786 dance##_ctx dance; \
2789 if (!PyArg_ParseTuple(arg, "O&O&:" #hdance "_prf", \
2790 convbin, &k, convbin, &n)) \
2792 if (k.sz != keysz(k.sz, dance##_keysz)) VALERR("bad key length"); \
2793 if (n.sz != HDANCE##_INSZ) VALERR("bad input length"); \
2794 rc = bytestring_pywrap(0, HSALSA20_OUTSZ); \
2795 dance##_init(&dance, k.p, k.sz, 0); \
2796 hdance##_prf(&dance, n.p, BIN_PTR(rc)); \
2802 DEF_HDANCE(SALSA20
, HSALSA20
, salsa20
, hsalsa20
)
2803 DEF_HDANCE(SALSA20
, HSALSA20
, salsa20
, hsalsa2012
)
2804 DEF_HDANCE(SALSA20
, HSALSA20
, salsa20
, hsalsa208
)
2806 DEF_HDANCE(CHACHA
, HCHACHA
, chacha
, hchacha20
)
2807 DEF_HDANCE(CHACHA
, HCHACHA
, chacha
, hchacha12
)
2808 DEF_HDANCE(CHACHA
, HCHACHA
, chacha
, hchacha8
)
2810 /*----- Keccak-p[1600, n] -------------------------------------------------*/
2812 static PyTypeObject
*kxvik_pytype
;
2814 typedef struct kxvik_pyobj
{
2820 static PyObject
*kxvik_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
2823 kxvik_pyobj
*rc
= 0;
2824 static const char *const kwlist
[] = { "nround", 0 };
2825 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "|O&:new", KWLIST
,
2828 rc
= (kxvik_pyobj
*)ty
->tp_alloc(ty
, 0);
2830 keccak1600_init(&rc
->s
);
2832 return ((PyObject
*)rc
);
2835 static PyObject
*kxvikmeth_copy(PyObject
*me
)
2837 kxvik_pyobj
*k
= (kxvik_pyobj
*)me
, *rc
= 0;
2838 rc
= (kxvik_pyobj
*)Py_TYPE(k
)->tp_alloc(Py_TYPE(k
), 0);
2839 rc
->s
= k
->s
; rc
->n
= k
->n
;
2840 return ((PyObject
*)rc
);
2843 static PyObject
*kxvikmeth_mix(PyObject
*me
, PyObject
*arg
)
2845 kxvik_pyobj
*k
= (kxvik_pyobj
*)me
;
2853 if (!PyArg_ParseTuple(arg
, "O&:mix", convbin
, &in
)) goto end
;
2854 if (in
.sz
> 200) VALERR("out of range");
2855 q
= in
.p
; n
= in
.sz
;
2857 while (n
> 8) { LOAD64_L_(t
[i
], q
); i
++; q
+= 8; n
-= 8; }
2859 memcpy(buf
, q
, n
); memset(buf
+ n
, 0, 8 - n
);
2860 LOAD64_L_(t
[i
], buf
); i
++;
2862 keccak1600_mix(&k
->s
, t
, i
);
2868 static PyObject
*kxvikmeth_extract(PyObject
*me
, PyObject
*arg
)
2870 kxvik_pyobj
*k
= (kxvik_pyobj
*)me
;
2877 if (!PyArg_ParseTuple(arg
, "O&:extract", convuint
, &n
)) goto end
;
2878 if (n
> 200) VALERR("out of range");
2879 rc
= bytestring_pywrap(0, n
);
2880 q
= (octet
*)BIN_PTR(rc
);
2881 keccak1600_extract(&k
->s
, t
, (n
+ 7)/8);
2883 while (n
> 8) { STORE64_L_(q
, t
[i
]); i
++; q
+= 8; n
-= 8; }
2884 if (n
) { STORE64_L_(buf
, t
[i
]); memcpy(q
, buf
, n
); }
2889 static PyObject
*kxvikmeth_step(PyObject
*me
)
2891 kxvik_pyobj
*k
= (kxvik_pyobj
*)me
;
2892 keccak1600_p(&k
->s
, &k
->s
, k
->n
);
2896 static const PyMemberDef kxvik_pymembers
[] = {
2897 #define MEMBERSTRUCT kxvik_pyobj
2898 MEMRNM(nround
, T_UINT
, n
, 0, "KECCAC.nround -> number of rounds")
2903 static const PyMethodDef kxvik_pymethods
[] = {
2904 #define METHNAME(func) kxvikmeth_##func
2905 NAMETH(copy
, "KECCAK.copy() -> KECCAK'")
2906 METH (mix
, "KECCAK.mix(DATA)")
2907 METH (extract
, "KECCAK.extract(NOCTETS)")
2908 NAMETH(step
, "KECCAK.step()")
2913 static const PyTypeObject kxvik_pytype_skel
= {
2914 PyVarObject_HEAD_INIT(0, 0) /* Header */
2915 "Keccak1600", /* @tp_name@ */
2916 sizeof(kxvik_pyobj
), /* @tp_basicsize@ */
2917 0, /* @tp_itemsize@ */
2919 0, /* @tp_dealloc@ */
2921 0, /* @tp_getattr@ */
2922 0, /* @tp_setattr@ */
2923 0, /* @tp_compare@ */
2925 0, /* @tp_as_number@ */
2926 0, /* @tp_as_sequence@ */
2927 0, /* @tp_as_mapping@ */
2931 0, /* @tp_getattro@ */
2932 0, /* @tp_setattro@ */
2933 0, /* @tp_as_buffer@ */
2934 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
2935 Py_TPFLAGS_BASETYPE
,
2938 "Keccak1600([nround = 24]): Keccak-p[1600, n] state.",
2940 0, /* @tp_traverse@ */
2942 0, /* @tp_richcompare@ */
2943 0, /* @tp_weaklistoffset@ */
2945 0, /* @tp_iternext@ */
2946 PYMETHODS(kxvik
), /* @tp_methods@ */
2947 PYMEMBERS(kxvik
), /* @tp_members@ */
2948 0, /* @tp_getset@ */
2951 0, /* @tp_descr_get@ */
2952 0, /* @tp_descr_set@ */
2953 0, /* @tp_dictoffset@ */
2955 PyType_GenericAlloc
, /* @tp_alloc@ */
2956 kxvik_pynew
, /* @tp_new@ */
2961 static PyTypeObject
*shake_pytype
, *shake128_pytype
, *shake256_pytype
;
2963 typedef struct shake_pyobj
{
2969 #define SHAKE_H(o) (&((shake_pyobj *)(o))->h)
2970 #define SHAKE_ST(o) (((shake_pyobj *)(o))->st)
2972 static PyObject
*shake_dopynew(void (*initfn
)(shake_ctx
*,
2973 const void *, size_t,
2974 const void *, size_t),
2976 PyObject
*arg
, PyObject
*kw
)
2978 shake_pyobj
*rc
= 0;
2979 struct bin p
= { 0, 0 }, f
= { 0, 0 };
2980 static const char *const kwlist
[] = { "perso", "func", 0 };
2982 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "|O&O&:new", KWLIST
,
2983 convbin
, &p
, convbin
, &f
))
2985 rc
= (shake_pyobj
*)ty
->tp_alloc(ty
, 0);
2986 initfn(&rc
->h
, f
.p
, f
.sz
, p
.p
, p
.sz
);
2989 return ((PyObject
*)rc
);
2992 static PyObject
*shake128_pynew(PyTypeObject
*ty
,
2993 PyObject
*arg
, PyObject
*kw
)
2994 { return (shake_dopynew(cshake128_init
, ty
, arg
, kw
)); }
2996 static PyObject
*shake256_pynew(PyTypeObject
*ty
,
2997 PyObject
*arg
, PyObject
*kw
)
2998 { return (shake_dopynew(cshake256_init
, ty
, arg
, kw
)); }
3000 static int shake_check(PyObject
*me
, int st
)
3002 if (SHAKE_ST(me
) != st
) VALERR("wrong state");
3008 static PyObject
*shakemeth_hash(PyObject
*me
, PyObject
*arg
)
3011 if (!PyArg_ParseTuple(arg
, "O&:hash", convbin
, &m
)) return (0);
3012 if (shake_check(me
, 0)) return (0);
3013 shake_hash(SHAKE_H(me
), m
.p
, m
.sz
);
3017 #define SHAKEMETH_HASHU_(n, W, w) \
3018 static PyObject *shakemeth_hashu##w(PyObject *me, PyObject *arg) \
3022 if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) return (0); \
3023 if (shake_check(me, 0)) return (0); \
3024 STORE##W(b, x); shake_hash(SHAKE_H(me), b, sizeof(b)); \
3027 DOUINTCONV(SHAKEMETH_HASHU_
)
3029 #define SHAKEMETH_HASHBUF_(n, W, w) \
3030 static PyObject *shakemeth_hashbuf##w(PyObject *me, PyObject *arg) \
3034 if (!PyArg_ParseTuple(arg, "O&:hashbuf" #w, convbin, &in)) goto end; \
3035 if (in.sz > MASK##n) TYERR("string too long"); \
3036 if (shake_check(me, 0)) goto end; \
3037 STORE##W(b, in.sz); shake_hash(SHAKE_H(me), b, sizeof(b)); \
3038 shake_hash(SHAKE_H(me), in.p, in.sz); \
3043 DOUINTCONV(SHAKEMETH_HASHBUF_
)
3045 static PyObject
*shakemeth_hashstrz(PyObject
*me
, PyObject
*arg
)
3048 if (!PyArg_ParseTuple(arg
, "s:hashstrz", &p
)) return (0);
3049 if (shake_check(me
, 0)) return (0);
3050 shake_hash(SHAKE_H(me
), p
, strlen(p
) + 1);
3054 static PyObject
*shakemeth_xof(PyObject
*me
)
3056 if (shake_check(me
, 0)) goto end
;
3057 shake_xof(SHAKE_H(me
));
3064 static PyObject
*shakemeth_done(PyObject
*me
, PyObject
*arg
)
3068 if (!PyArg_ParseTuple(arg
, "O&:done", convszt
, &n
)) goto end
;
3069 if (shake_check(me
, 0)) goto end
;
3070 rc
= bytestring_pywrap(0, n
);
3071 shake_done(SHAKE_H(me
), BIN_PTR(rc
), n
);
3077 static PyObject
*shakemeth_copy(PyObject
*me
)
3079 shake_pyobj
*rc
= 0;
3081 rc
= PyObject_NEW(shake_pyobj
, Py_TYPE(me
));
3082 rc
->h
= *SHAKE_H(me
);
3083 rc
->st
= SHAKE_ST(me
);
3084 return ((PyObject
*)rc
);
3087 static PyObject
*shakemeth_get(PyObject
*me
, PyObject
*arg
)
3092 if (!PyArg_ParseTuple(arg
, "O&:get", convszt
, &sz
)) goto end
;
3093 if (shake_check(me
, 1)) goto end
;
3094 rc
= bytestring_pywrap(0, sz
);
3095 shake_get(SHAKE_H(me
), BIN_PTR(rc
), sz
);
3100 static PyObject
*shakemeth_mask(PyObject
*me
, PyObject
*arg
)
3105 if (!PyArg_ParseTuple(arg
, "O&:mask", convbin
, &in
)) goto end
;
3106 if (shake_check(me
, 1)) goto end
;
3107 rc
= bytestring_pywrap(0, in
.sz
);
3108 shake_mask(SHAKE_H(me
), in
.p
, BIN_PTR(rc
), in
.sz
);
3113 static PyObject
*shakeget_state(PyObject
*me
, void *hunoz
)
3115 int st
= SHAKE_ST(me
);
3116 return (TEXT_FROMSTR(st
== 0 ?
"absorb" :
3117 st
== 1 ?
"squeeze" : "dead"));
3120 static const PyMemberDef shake_pymembers
[] = {
3121 #define MEMBERSTRUCT shake_pyobj
3122 MEMRNM(rate
, T_UINT
, h
.h
.r
, READONLY
, "S.rate -> rate, in bytes")
3123 MEMRNM(buffered
, T_UINT
, h
.h
.n
, READONLY
,
3124 "S.buffered -> amount currently buffered")
3129 static const PyGetSetDef shake_pygetset
[] = {
3130 #define GETSETNAME(op, name) shake##op##_##name
3131 GET (state
, "S.state -> `absorb', `squeeze', `dead'")
3136 static const PyMethodDef shake_pymethods
[] = {
3137 #define METHNAME(func) shakemeth_##func
3138 NAMETH(copy
, "S.copy() -> SS")
3139 METH (hash
, "S.hash(M)")
3140 #define METHU_(n, W, w) METH(hashu##w, "S.hashu" #w "(WORD)")
3143 #define METHBUF_(n, W, w) METH(hashbuf##w, "S.hashbuf" #w "(BYTES)")
3144 DOUINTCONV(METHBUF_
)
3146 METH (hashstrz
, "S.hashstrz(STRING)")
3147 NAMETH(xof
, "S.xof()")
3148 METH (done
, "S.done(LEN) -> H")
3149 METH (get
, "S.get(LEN) -> H")
3150 METH (mask
, "S.mask(M) -> C")
3155 static const PyTypeObject shake_pytype_skel
= {
3156 PyVarObject_HEAD_INIT(0, 0) /* Header */
3157 "Shake", /* @tp_name@ */
3158 sizeof(shake_pyobj
), /* @tp_basicsize@ */
3159 0, /* @tp_itemsize@ */
3161 0, /* @tp_dealloc@ */
3163 0, /* @tp_getattr@ */
3164 0, /* @tp_setattr@ */
3165 0, /* @tp_compare@ */
3167 0, /* @tp_as_number@ */
3168 0, /* @tp_as_sequence@ */
3169 0, /* @tp_as_mapping@ */
3173 0, /* @tp_getattro@ */
3174 0, /* @tp_setattro@ */
3175 0, /* @tp_as_buffer@ */
3176 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
3177 Py_TPFLAGS_BASETYPE
,
3180 "SHAKE/cSHAKE/KMAC base class.",
3182 0, /* @tp_traverse@ */
3184 0, /* @tp_richcompare@ */
3185 0, /* @tp_weaklistoffset@ */
3187 0, /* @tp_iternext@ */
3188 PYMETHODS(shake
), /* @tp_methods@ */
3189 PYMEMBERS(shake
), /* @tp_members@ */
3190 PYGETSET(shake
), /* @tp_getset@ */
3193 0, /* @tp_descr_get@ */
3194 0, /* @tp_descr_set@ */
3195 0, /* @tp_dictoffset@ */
3197 PyType_GenericAlloc
, /* @tp_alloc@ */
3198 abstract_pynew
, /* @tp_new@ */
3203 static const PyTypeObject shake128_pytype_skel
= {
3204 PyVarObject_HEAD_INIT(0, 0) /* Header */
3205 "Shake128", /* @tp_name@ */
3206 0, /* @tp_basicsize@ */
3207 0, /* @tp_itemsize@ */
3209 0, /* @tp_dealloc@ */
3211 0, /* @tp_getattr@ */
3212 0, /* @tp_setattr@ */
3213 0, /* @tp_compare@ */
3215 0, /* @tp_as_number@ */
3216 0, /* @tp_as_sequence@ */
3217 0, /* @tp_as_mapping@ */
3221 0, /* @tp_getattro@ */
3222 0, /* @tp_setattro@ */
3223 0, /* @tp_as_buffer@ */
3224 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
3225 Py_TPFLAGS_BASETYPE
,
3228 "Shake128([perso = STR], [func = STR]): SHAKE128/cSHAKE128 XOF.",
3230 0, /* @tp_traverse@ */
3232 0, /* @tp_richcompare@ */
3233 0, /* @tp_weaklistoffset@ */
3235 0, /* @tp_iternext@ */
3236 0, /* @tp_methods@ */
3237 0, /* @tp_members@ */
3238 0, /* @tp_getset@ */
3241 0, /* @tp_descr_get@ */
3242 0, /* @tp_descr_set@ */
3243 0, /* @tp_dictoffset@ */
3245 PyType_GenericAlloc
, /* @tp_alloc@ */
3246 shake128_pynew
, /* @tp_new@ */
3251 static const PyTypeObject shake256_pytype_skel
= {
3252 PyVarObject_HEAD_INIT(0, 0) /* Header */
3253 "Shake256", /* @tp_name@ */
3254 0, /* @tp_basicsize@ */
3255 0, /* @tp_itemsize@ */
3257 0, /* @tp_dealloc@ */
3259 0, /* @tp_getattr@ */
3260 0, /* @tp_setattr@ */
3261 0, /* @tp_compare@ */
3263 0, /* @tp_as_number@ */
3264 0, /* @tp_as_sequence@ */
3265 0, /* @tp_as_mapping@ */
3269 0, /* @tp_getattro@ */
3270 0, /* @tp_setattro@ */
3271 0, /* @tp_as_buffer@ */
3272 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
3273 Py_TPFLAGS_BASETYPE
,
3276 "Shake256([perso = STR], [func = STR]): SHAKE256/cSHAKE256 XOF.",
3278 0, /* @tp_traverse@ */
3280 0, /* @tp_richcompare@ */
3281 0, /* @tp_weaklistoffset@ */
3283 0, /* @tp_iternext@ */
3284 0, /* @tp_methods@ */
3285 0, /* @tp_members@ */
3286 0, /* @tp_getset@ */
3289 0, /* @tp_descr_get@ */
3290 0, /* @tp_descr_set@ */
3291 0, /* @tp_dictoffset@ */
3293 PyType_GenericAlloc
, /* @tp_alloc@ */
3294 shake256_pynew
, /* @tp_new@ */
3299 /*----- Pseudorandom permutations -----------------------------------------*/
3301 static PyTypeObject
*gcprp_pytype
, *gprp_pytype
;
3303 typedef struct prpinfo
{
3308 void (*init
)(void *, const void *, size_t);
3309 void (*eblk
)(void *, const void *, void *);
3310 void (*dblk
)(void *, const void *, void *);
3313 #define PRP_DEF(PRE, pre) \
3314 static void pre##_prpinit(void *ctx, const void *k, size_t ksz) \
3315 { pre##_init(ctx, k, ksz); } \
3316 static void pre##_prpeblk(void *ctx, const void *in, void *out) \
3318 uint32 w[PRE##_BLKSZ/4]; BLKC_LOAD(PRE, w, in); \
3319 pre##_eblk(ctx, w, w); BLKC_STORE(PRE, out, w); \
3321 static void pre##_prpdblk(void *ctx, const void *in, void *out) \
3323 uint32 w[PRE##_BLKSZ/4]; BLKC_LOAD(PRE, w, in); \
3324 pre##_dblk(ctx, w, w); BLKC_STORE(PRE, out, w); \
3326 static const prpinfo pre##_prpinfo = { \
3327 #pre, pre##_keysz, sizeof(pre##_ctx), PRE##_BLKSZ, \
3328 pre##_prpinit, pre##_prpeblk, pre##_prpdblk \
3332 static const struct prpinfo
*const gprptab
[] = {
3333 #define PRP_ENTRY(PRE, pre) &pre##_prpinfo,
3338 typedef struct gcprp_pyobj
{
3339 PyHeapTypeObject ty
;
3342 #define GCPRP_PRP(o) (((gcprp_pyobj *)(o))->prp)
3344 typedef struct gprp_pyobj
{
3348 #define GPRP_PRP(o) (((gprp_pyobj *)(o))->prp)
3349 #define GPRP_CTX(o) (((gprp_pyobj *)(o)) + 1)
3351 typedef struct prp
{
3356 static PyObject
*gprp_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
3358 static const char *const kwlist
[] = { "key", 0 };
3360 const prpinfo
*prp
= GCPRP_PRP(ty
);
3363 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "O&:new", KWLIST
, convbin
, &k
))
3365 if (keysz(k
.sz
, prp
->keysz
) != k
.sz
) VALERR("bad key length");
3366 me
= (PyObject
*)ty
->tp_alloc(ty
, 0);
3368 prp
->init(GPRP_CTX(me
), k
.p
, k
.sz
);
3375 static void gprp_pydealloc(PyObject
*me
)
3376 { Py_DECREF(Py_TYPE(me
)); FREEOBJ(me
); }
3378 static PyObject
*gcprp_pywrap(const prpinfo
*prp
)
3380 gcprp_pyobj
*g
= newtype(gcprp_pytype
, 0, prp
->name
);
3382 g
->ty
.ht_type
.tp_basicsize
= sizeof(gprp_pyobj
) + prp
->ctxsz
;
3383 g
->ty
.ht_type
.tp_base
= gprp_pytype
;
3384 Py_INCREF(gprp_pytype
);
3385 g
->ty
.ht_type
.tp_flags
= (Py_TPFLAGS_DEFAULT
|
3386 Py_TPFLAGS_BASETYPE
|
3387 Py_TPFLAGS_HEAPTYPE
);
3388 g
->ty
.ht_type
.tp_alloc
= PyType_GenericAlloc
;
3389 g
->ty
.ht_type
.tp_free
= 0;
3390 g
->ty
.ht_type
.tp_new
= gprp_pynew
;
3391 typeready(&g
->ty
.ht_type
);
3392 return ((PyObject
*)g
);
3395 static PyObject
*gcpget_name(PyObject
*me
, void *hunoz
)
3396 { return (TEXT_FROMSTR(GCPRP_PRP(me
)->name
)); }
3397 static PyObject
*gcpget_keysz(PyObject
*me
, void *hunoz
)
3398 { return (keysz_pywrap(GCPRP_PRP(me
)->keysz
)); }
3399 static PyObject
*gcpget_blksz(PyObject
*me
, void *hunoz
)
3400 { return (PyInt_FromLong(GCPRP_PRP(me
)->blksz
)); }
3402 static PyObject
*gpmeth_encrypt(PyObject
*me
, PyObject
*arg
)
3407 if (!PyArg_ParseTuple(arg
, "O&:encrypt", convbin
, &m
)) goto end
;
3408 if (m
.sz
!= GPRP_PRP(me
)->blksz
) VALERR("incorrect block length");
3409 rc
= bytestring_pywrap(0, m
.sz
);
3410 GPRP_PRP(me
)->eblk(GPRP_CTX(me
), m
.p
, BIN_PTR(rc
));
3415 static PyObject
*gpmeth_decrypt(PyObject
*me
, PyObject
*arg
)
3420 if (!PyArg_ParseTuple(arg
, "O&:decrypt", convbin
, &c
)) goto end
;
3421 if (c
.sz
!= GPRP_PRP(me
)->blksz
) VALERR("incorrect block length");
3422 rc
= bytestring_pywrap(0, c
.sz
);
3423 GPRP_PRP(me
)->dblk(GPRP_CTX(me
), c
.p
, BIN_PTR(rc
));
3428 static const PyGetSetDef gcprp_pygetset
[] = {
3429 #define GETSETNAME(op, name) gcp##op##_##name
3430 GET (keysz
, "CP.keysz -> acceptable key sizes")
3431 GET (blksz
, "CP.blksz -> block size")
3432 GET (name
, "CP.name -> name of this kind of PRP")
3437 static const PyMethodDef gprp_pymethods
[] = {
3438 #define METHNAME(name) gpmeth_##name
3439 METH (encrypt
, "P.encrypt(PT) -> CT")
3440 METH (decrypt
, "P.decrypt(CT) -> PT")
3445 static const PyTypeObject gcprp_pytype_skel
= {
3446 PyVarObject_HEAD_INIT(0, 0) /* Header */
3447 "GCPRP", /* @tp_name@ */
3448 sizeof(gcprp_pyobj
), /* @tp_basicsize@ */
3449 0, /* @tp_itemsize@ */
3451 0, /* @tp_dealloc@ */
3453 0, /* @tp_getattr@ */
3454 0, /* @tp_setattr@ */
3455 0, /* @tp_compare@ */
3457 0, /* @tp_as_number@ */
3458 0, /* @tp_as_sequence@ */
3459 0, /* @tp_as_mapping@ */
3463 0, /* @tp_getattro@ */
3464 0, /* @tp_setattro@ */
3465 0, /* @tp_as_buffer@ */
3466 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
3467 Py_TPFLAGS_BASETYPE
,
3470 "Pseudorandom permutation metaclass.",
3472 0, /* @tp_traverse@ */
3474 0, /* @tp_richcompare@ */
3475 0, /* @tp_weaklistoffset@ */
3477 0, /* @tp_iternext@ */
3478 0, /* @tp_methods@ */
3479 0, /* @tp_members@ */
3480 PYGETSET(gcprp
), /* @tp_getset@ */
3483 0, /* @tp_descr_get@ */
3484 0, /* @tp_descr_set@ */
3485 0, /* @tp_dictoffset@ */
3487 PyType_GenericAlloc
, /* @tp_alloc@ */
3488 abstract_pynew
, /* @tp_new@ */
3493 static const PyTypeObject gprp_pytype_skel
= {
3494 PyVarObject_HEAD_INIT(0, 0) /* Header */
3495 "GPRP", /* @tp_name@ */
3496 sizeof(gprp_pyobj
), /* @tp_basicsize@ */
3497 0, /* @tp_itemsize@ */
3499 gprp_pydealloc
, /* @tp_dealloc@ */
3501 0, /* @tp_getattr@ */
3502 0, /* @tp_setattr@ */
3503 0, /* @tp_compare@ */
3505 0, /* @tp_as_number@ */
3506 0, /* @tp_as_sequence@ */
3507 0, /* @tp_as_mapping@ */
3511 0, /* @tp_getattro@ */
3512 0, /* @tp_setattro@ */
3513 0, /* @tp_as_buffer@ */
3514 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
3515 Py_TPFLAGS_BASETYPE
,
3518 "Pseudorandom permutation, abstract base class.",
3520 0, /* @tp_traverse@ */
3522 0, /* @tp_richcompare@ */
3523 0, /* @tp_weaklistoffset@ */
3525 0, /* @tp_iternext@ */
3526 PYMETHODS(gprp
), /* @tp_methods@ */
3527 0, /* @tp_members@ */
3528 0, /* @tp_getset@ */
3531 0, /* @tp_descr_get@ */
3532 0, /* @tp_descr_set@ */
3533 0, /* @tp_dictoffset@ */
3535 PyType_GenericAlloc
, /* @tp_alloc@ */
3536 abstract_pynew
, /* @tp_new@ */
3541 /*----- Main code ---------------------------------------------------------*/
3543 static const struct nameval consts
[] = {
3544 CONST(AEADF_PCHSZ
), CONST(AEADF_PCMSZ
), CONST(AEADF_PCTSZ
),
3545 CONST(AEADF_AADNDEP
), CONST(AEADF_AADFIRST
), CONST(AEADF_NOAAD
),
3549 static const PyMethodDef methods
[] = {
3550 #define METHNAME(func) meth_##func
3551 #define METH_HDANCE(hdance, HDance) METH(hdance##_prf, \
3552 "" #hdance "_prf(K, N) -> H: calculate " HDance " hash of N with K")
3553 METH_HDANCE(hsalsa20
, "HSalsa20")
3554 METH_HDANCE(hsalsa2012
, "HSalsa20/12")
3555 METH_HDANCE(hsalsa208
, "HSalsa20/8")
3556 METH_HDANCE(hchacha20
, "HChaCha20")
3557 METH_HDANCE(hchacha12
, "HChaCha12")
3558 METH_HDANCE(hchacha8
, "HChaCha8")
3564 void algorithms_pyinit(void)
3566 INITTYPE(keysz
, root
);
3567 INITTYPE(keyszany
, keysz
);
3568 INITTYPE(keyszrange
, keysz
);
3569 INITTYPE(keyszset
, keysz
);
3570 INITTYPE(gccipher
, type
);
3571 INITTYPE(gcipher
, root
);
3572 INITTYPE(gcaead
, type
);
3573 INITTYPE(gaeadkey
, root
);
3574 INITTYPE(gcaeadaad
, type
);
3575 INITTYPE(gaeadaad
, root
);
3576 INITTYPE(gcaeadenc
, type
);
3577 INITTYPE(gaeadenc
, root
);
3578 INITTYPE(gcaeaddec
, type
);
3579 INITTYPE(gaeaddec
, root
);
3580 INITTYPE(gchash
, type
);
3581 INITTYPE(ghash
, root
);
3582 INITTYPE(gcmac
, type
);
3583 INITTYPE(gmac
, type
);
3584 INITTYPE(gmhash
, ghash
);
3585 INITTYPE(poly1305cls
, type
);
3586 INITTYPE_META(poly1305key
, type
, poly1305cls
);
3587 INITTYPE(poly1305hash
, root
);
3588 INITTYPE(kxvik
, root
);
3589 INITTYPE(shake
, root
);
3590 INITTYPE(shake128
, shake
);
3591 INITTYPE(shake256
, shake
);
3592 INITTYPE(gcprp
, type
);
3593 INITTYPE(gprp
, root
);
3594 addmethods(methods
);
3597 #define gcprp prpinfo
3598 #define CLASS_TABLES(_) _(cipher) _(aead) _(hash) _(mac) _(prp)
3599 #define TABLE_FNS(pre) \
3600 static const char *pre##_namefn(const void *p) \
3601 { const gc##pre *const *cls = p; return (*cls ? (*cls)->name : 0); } \
3602 static PyObject *pre##_valfn(const void *p) \
3603 { gc##pre *const*cls = p; return (gc##pre##_pywrap(*cls)); }
3604 CLASS_TABLES(TABLE_FNS
)
3606 void algorithms_pyinsert(PyObject
*mod
)
3609 INSERT("KeySZ", keysz_pytype
);
3610 INSERT("KeySZAny", keyszany_pytype
);
3611 INSERT("KeySZRange", keyszrange_pytype
);
3612 INSERT("KeySZSet", keyszset_pytype
);
3613 INSERT("GCCipher", gccipher_pytype
);
3614 INSERT("GCipher", gcipher_pytype
);
3615 INSERT("gcciphers", make_algtab(gciphertab
, sizeof(gccipher
*),
3616 cipher_namefn
, cipher_valfn
));
3617 INSERT("GCAEAD", gcaead_pytype
);
3618 INSERT("GAEKey", gaeadkey_pytype
);
3619 INSERT("GAEAADClass", gcaeadaad_pytype
);
3620 INSERT("GAEAAD", gaeadaad_pytype
);
3621 INSERT("GAEEncClass", gcaeadenc_pytype
);
3622 INSERT("GAEEnc", gaeadenc_pytype
);
3623 INSERT("GAEDecClass", gcaeaddec_pytype
);
3624 INSERT("GAEDec", gaeaddec_pytype
);
3625 INSERT("gcaeads", make_algtab(gaeadtab
, sizeof(gcaead
*),
3626 aead_namefn
, aead_valfn
));
3627 INSERT("GCHash", gchash_pytype
);
3628 INSERT("GHash", ghash_pytype
);
3629 d
= make_algtab(ghashtab
, sizeof(gchash
*), hash_namefn
, hash_valfn
);
3630 INSERT("gchashes", d
);
3631 sha_pyobj
= PyMapping_GetItemString(d
, "sha"); Py_INCREF(sha_pyobj
);
3632 has160_pyobj
= PyMapping_GetItemString(d
, "has160"); Py_INCREF(has160_pyobj
);
3633 INSERT("GCMAC", gcmac_pytype
);
3634 INSERT("GMAC", gmac_pytype
);
3635 INSERT("GMACHash", gmhash_pytype
);
3636 INSERT("gcmacs", make_algtab(gmactab
, sizeof(gcmac
*),
3637 mac_namefn
, mac_valfn
));
3638 INSERT("Poly1305Class", poly1305cls_pytype
);
3639 INSERT("poly1305", poly1305key_pytype
);
3640 INSERT("Poly1305Hash", poly1305hash_pytype
);
3641 INSERT("Keccak1600", kxvik_pytype
);
3642 INSERT("Shake", shake_pytype
);
3643 INSERT("Shake128", shake128_pytype
);
3644 INSERT("Shake256", shake256_pytype
);
3645 INSERT("GCPRP", gcprp_pytype
);
3646 INSERT("GPRP", gprp_pytype
);
3647 INSERT("gcprps", make_algtab(gprptab
, sizeof(gcprp
*),
3648 prp_namefn
, prp_valfn
));
3649 setconstants(mod
, consts
);
3652 /*----- That's all, folks -------------------------------------------------*/