/* -*-c-*-
- *
- * $Id$
*
* Symmetric cryptography
*
* (c) 2004 Straylight/Edgeware
*/
-/*----- Licensing notice --------------------------------------------------*
+/*----- Licensing notice --------------------------------------------------*
*
* This file is part of the Python interface to Catacomb.
*
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* Catacomb/Python is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- *
+ *
* You should have received a copy of the GNU General Public License
* along with Catacomb/Python; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
PyTypeObject *keyszany_pytype, *keyszrange_pytype, *keyszset_pytype;
PyObject *sha_pyobj, *has160_pyobj;
+#ifndef KSZ_OPMASK
+# define KSZ_OPMASK 0x1f
+#endif
+
+#ifndef KSZ_16BIT
+# define KSZ_16BIT 0x20
+#endif
+
PyObject *keysz_pywrap(const octet *k)
{
- switch (k[0]) {
+ unsigned op = *k++;
+#define ARG(i) (op&KSZ_16BIT ? LOAD16(k + 2*(i)) : k[i])
+ switch (op&KSZ_OPMASK) {
case KSZ_ANY: {
keysz_pyobj *o = PyObject_New(keysz_pyobj, keyszany_pytype);
- o->dfl = k[1];
+ o->dfl = ARG(0);
return ((PyObject *)o);
} break;
case KSZ_RANGE: {
keyszrange_pyobj *o =
- PyObject_New(keyszrange_pyobj, keyszrange_pytype);
- o->dfl = k[1];
- o->min = k[2];
- o->max = k[3];
- o->mod = k[4];
+ PyObject_New(keyszrange_pyobj, keyszrange_pytype);
+ o->dfl = ARG(0);
+ o->min = ARG(1);
+ o->max = ARG(2);
+ o->mod = ARG(3);
if (!o->mod) o->mod = 1;
return ((PyObject *)o);
} break;
case KSZ_SET: {
keyszset_pyobj *o =
- PyObject_New(keyszset_pyobj, keyszset_pytype);
+ PyObject_New(keyszset_pyobj, keyszset_pytype);
int i, n;
- o->dfl = k[1];
- for (i = 0; k[i + 1]; i++) ;
+ o->dfl = ARG(0);
+ for (i = 0; ARG(i); i++) ;
n = i; o->set = PyTuple_New(n);
for (i = 0; i < n; i++)
- PyTuple_SET_ITEM(o->set, i, PyInt_FromLong(k[i + 1]));
+ PyTuple_SET_ITEM(o->set, i, PyInt_FromLong(ARG(i)));
return ((PyObject *)o);
} break;
default:
abort();
}
+#undef ARG
}
static PyObject *keyszany_pynew(PyTypeObject *ty,
PyObject *arg, PyObject *kw)
{
- char *kwlist[] = { "default", 0 };
+ static const char *const kwlist[] = { "default", 0 };
int dfl;
keysz_pyobj *o;
- if (!PyArg_ParseTupleAndKeywords(arg, kw, "i:new", kwlist, &dfl))
+ if (!PyArg_ParseTupleAndKeywords(arg, kw, "i:new", KWLIST, &dfl))
goto end;
if (dfl < 0) VALERR("key size cannot be negative");
o = (keysz_pyobj *)ty->tp_alloc(ty, 0);
static PyObject *keyszrange_pynew(PyTypeObject *ty,
PyObject *arg, PyObject *kw)
{
- char *kwlist[] = { "default", "min", "max", "mod", 0 };
+ static const char *const kwlist[] = { "default", "min", "max", "mod", 0 };
int dfl, min = 0, max = 0, mod = 1;
keyszrange_pyobj *o;
- if (!PyArg_ParseTupleAndKeywords(arg, kw, "i|iii:new", kwlist,
+ if (!PyArg_ParseTupleAndKeywords(arg, kw, "i|iii:new", KWLIST,
&dfl, &min, &max, &mod))
goto end;
- if (dfl < 0 || min < 0 || max < 0)
- VALERR("key size cannot be negative");
- if (min > dfl || (max && dfl > max))
- VALERR("bad key size bounds");
- if (mod <= 0 || dfl % mod || min % mod || max % mod)
+ if (dfl < 0 || min < 0) VALERR("key size cannot be negative");
+ if (min > dfl || (max && dfl > max)) VALERR("bad key size bounds");
+ if (mod <= 0 || dfl%mod || min%mod || max%mod)
VALERR("bad key size modulus");
o = (keyszrange_pyobj *)ty->tp_alloc(ty, 0);
o->dfl = dfl;
static PyObject *keyszset_pynew(PyTypeObject *ty,
PyObject *arg, PyObject *kw)
{
- char *kwlist[] = { "default", "set", 0 };
+ static const char *const kwlist[] = { "default", "set", 0 };
int dfl, i, n, xx;
PyObject *set = 0;
PyObject *x = 0, *l = 0;
keyszset_pyobj *o = 0;
- if (!PyArg_ParseTupleAndKeywords(arg, kw, "i|O:new", kwlist,
- &dfl, &set))
+ if (!PyArg_ParseTupleAndKeywords(arg, kw, "i|O:new", KWLIST, &dfl, &set))
goto end;
if (!set) set = PyTuple_New(0);
else Py_INCREF(set);
if (!PySequence_Check(set)) TYERR("want a sequence");
- n = PySequence_Size(set);
- l = PyList_New(0);
- if (PyErr_Occurred()) goto end;
+ n = PySequence_Size(set); if (n < 0) goto end;
+ l = PyList_New(0); if (!l) goto end;
if (dfl < 0) VALERR("key size cannot be negative");
x = PyInt_FromLong(dfl);
PyList_Append(l, x);
if (xx < 0) VALERR("key size cannot be negative");
PyList_Append(l, x);
Py_DECREF(x);
- x = 0;
+ x = 0;
}
Py_DECREF(set);
if ((set = PySequence_Tuple(l)) == 0) goto end;
static PyGetSetDef keyszany_pygetset[] = {
#define GETSETNAME(op, name) ka##op##_##name
GET (min, "KSZ.min -> smallest allowed key size")
- GET (max, "KSZ.min -> largest allowed key size")
+ GET (max, "KSZ.max -> largest allowed key size")
#undef GETSETNAME
{ 0 }
};
static PyMemberDef keyszrange_pymembers[] = {
#define MEMBERSTRUCT keyszrange_pyobj
MEMBER(min, T_INT, READONLY, "KSZ.min -> smallest allowed key size")
- MEMBER(max, T_INT, READONLY, "KSZ.min -> largest allowed key size")
+ MEMBER(max, T_INT, READONLY, "KSZ.max -> largest allowed key size")
MEMBER(mod, T_INT, READONLY,
"KSZ.mod -> key size must be a multiple of this")
#undef MEMBERSTRUCT
static PyGetSetDef keyszset_pygetset[] = {
#define GETSETNAME(op, name) ks##op##_##name
GET (min, "KSZ.min -> smallest allowed key size")
- GET (max, "KSZ.min -> largest allowed key size")
+ GET (max, "KSZ.max -> largest allowed key size")
#undef GETSETNAME
{ 0 }
};
};
static PyTypeObject keysz_pytype_skel = {
- PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */
- "catacomb.KeySZ", /* @tp_name@ */
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "KeySZ", /* @tp_name@ */
sizeof(keysz_pyobj), /* @tp_basicsize@ */
0, /* @tp_itemsize@ */
Py_TPFLAGS_BASETYPE,
/* @tp_doc@ */
-"Key size constraints.",
+"Key size constraints. Abstract.",
0, /* @tp_traverse@ */
0, /* @tp_clear@ */
0, /* @tp_richcompare@ */
0, /* @tp_weaklistoffset@ */
0, /* @tp_iter@ */
- 0, /* @tp_iternexr@ */
+ 0, /* @tp_iternext@ */
0, /* @tp_methods@ */
keysz_pymembers, /* @tp_members@ */
0, /* @tp_getset@ */
};
static PyTypeObject keyszany_pytype_skel = {
- PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */
- "catacomb.KeySZAny", /* @tp_name@ */
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "KeySZAny", /* @tp_name@ */
sizeof(keysz_pyobj), /* @tp_basicsize@ */
0, /* @tp_itemsize@ */
Py_TPFLAGS_BASETYPE,
/* @tp_doc@ */
-"Key size constraints. This object imposes no constraints on size.",
+"KeySZAny(DEFAULT)\n\
+ Key size constraints. This object imposes no constraints on size.",
0, /* @tp_traverse@ */
0, /* @tp_clear@ */
0, /* @tp_richcompare@ */
0, /* @tp_weaklistoffset@ */
0, /* @tp_iter@ */
- 0, /* @tp_iternexr@ */
+ 0, /* @tp_iternext@ */
0, /* @tp_methods@ */
0, /* @tp_members@ */
keyszany_pygetset, /* @tp_getset@ */
};
static PyTypeObject keyszrange_pytype_skel = {
- PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */
- "catacomb.KeySZRange", /* @tp_name@ */
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "KeySZRange", /* @tp_name@ */
sizeof(keyszrange_pyobj), /* @tp_basicsize@ */
0, /* @tp_itemsize@ */
Py_TPFLAGS_BASETYPE,
/* @tp_doc@ */
-"Key size constraints. This object asserts minimum and maximum (if\n\
-sizes, and requires the key length to be a multiple of some value.",
+"KeySZRange(DEFAULT, [min = 0], [max = 0], [mod = 1])\n\
+ Key size constraints. Key size must be between MIN and MAX inclusive,\n\
+ and be a multiple of MOD.",
0, /* @tp_traverse@ */
0, /* @tp_clear@ */
0, /* @tp_richcompare@ */
0, /* @tp_weaklistoffset@ */
0, /* @tp_iter@ */
- 0, /* @tp_iternexr@ */
+ 0, /* @tp_iternext@ */
0, /* @tp_methods@ */
keyszrange_pymembers, /* @tp_members@ */
0, /* @tp_getset@ */
};
static PyTypeObject keyszset_pytype_skel = {
- PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */
- "catacomb.KeySZSet", /* @tp_name@ */
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "KeySZSet", /* @tp_name@ */
sizeof(keyszset_pyobj), /* @tp_basicsize@ */
0, /* @tp_itemsize@ */
Py_TPFLAGS_BASETYPE,
/* @tp_doc@ */
-"Key size constraints. This object requires the key to be one of a\n\
-few listed sizes.",
+"KeySZSet(DEFAULT, SEQ)\n\
+ Key size constraints. Key size must be DEFAULT or one in SEQ.",
0, /* @tp_traverse@ */
0, /* @tp_clear@ */
0, /* @tp_richcompare@ */
0, /* @tp_weaklistoffset@ */
0, /* @tp_iter@ */
- 0, /* @tp_iternexr@ */
+ 0, /* @tp_iternext@ */
0, /* @tp_methods@ */
keyszset_pymembers, /* @tp_members@ */
keyszset_pygetset, /* @tp_getset@ */
0 /* @tp_is_gc@ */
};
+#define KSZCONVOP(op) \
+ static PyObject *meth__KeySZ_##op(PyObject *me, PyObject *arg) \
+ { \
+ double x, y; \
+ if (!PyArg_ParseTuple(arg, "Od:" #op, &me, &x)) return (0); \
+ y = keysz_##op(x); \
+ return (PyFloat_FromDouble(y)); \
+ }
+KSZCONVOP(fromdl)
+KSZCONVOP(fromschnorr)
+KSZCONVOP(fromif)
+KSZCONVOP(fromec)
+KSZCONVOP(todl)
+KSZCONVOP(toschnorr)
+KSZCONVOP(toif)
+KSZCONVOP(toec)
+#undef KSZCONVOP
+
/*----- Symmetric encryption ----------------------------------------------*/
PyTypeObject *gccipher_pytype, *gcipher_pytype;
CONVFUNC(gccipher, gccipher *, GCCIPHER_CC)
CONVFUNC(gcipher, gcipher *, GCIPHER_C)
-PyObject *gcipher_pywrap(PyObject *cobj, gcipher *c, unsigned f)
+PyObject *gcipher_pywrap(PyObject *cobj, gcipher *c)
{
gcipher_pyobj *g;
if (!cobj) cobj = gccipher_pywrap((/*unconst*/ gccipher *)GC_CLASS(c));
else Py_INCREF(cobj);
g = PyObject_NEW(gcipher_pyobj, (PyTypeObject *)cobj);
g->c = c;
- g->f = f;
- return ((PyObject *)g);
+ return ((PyObject *)g);
}
static PyObject *gcipher_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
{
- char *kwlist[] = { "k", 0 };
+ static const char *const kwlist[] = { "k", 0 };
char *k;
- int sz;
+ Py_ssize_t sz;
- if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &sz))
+ if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", KWLIST, &k, &sz))
goto end;
if (keysz(sz, GCCIPHER_CC(ty)->keysz) != sz) VALERR("bad key length");
return (gcipher_pywrap((PyObject *)ty,
- GC_INIT(GCCIPHER_CC(ty), k, sz),
- f_freeme));
+ GC_INIT(GCCIPHER_CC(ty), k, sz)));
end:
- return (0);
+ return (0);
}
PyObject *gccipher_pywrap(gccipher *cc)
{
gccipher_pyobj *g = newtype(gccipher_pytype, 0, cc->name);
g->cc = cc;
- g->ty.type.tp_basicsize = sizeof(gcipher_pyobj);
- g->ty.type.tp_base = gcipher_pytype;
+ g->ty.ht_type.tp_basicsize = sizeof(gcipher_pyobj);
+ g->ty.ht_type.tp_base = gcipher_pytype;
Py_INCREF(gcipher_pytype);
- g->ty.type.tp_flags = (Py_TPFLAGS_DEFAULT |
- Py_TPFLAGS_BASETYPE |
- Py_TPFLAGS_HEAPTYPE);
- g->ty.type.tp_alloc = PyType_GenericAlloc;
- g->ty.type.tp_free = 0;
- g->ty.type.tp_new = gcipher_pynew;
- PyType_Ready(&g->ty.type);
+ g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT |
+ Py_TPFLAGS_BASETYPE |
+ Py_TPFLAGS_HEAPTYPE);
+ g->ty.ht_type.tp_alloc = PyType_GenericAlloc;
+ g->ty.ht_type.tp_free = 0;
+ g->ty.ht_type.tp_new = gcipher_pynew;
+ typeready(&g->ty.ht_type);
return ((PyObject *)g);
}
static void gcipher_pydealloc(PyObject *me)
{
- if (GCIPHER_F(me) & f_freeme)
- GC_DESTROY(GCIPHER_C(me));
+ GC_DESTROY(GCIPHER_C(me));
Py_DECREF(me->ob_type);
FREEOBJ(me);
}
static PyObject *gcmeth_encrypt(PyObject *me, PyObject *arg)
{
char *p;
- int sz;
+ Py_ssize_t sz;
PyObject *rc = 0;
if (!PyArg_ParseTuple(arg, "s#:encrypt", &p, &sz)) return (0);
static PyObject *gcmeth_decrypt(PyObject *me, PyObject *arg)
{
char *p;
- int sz;
+ Py_ssize_t sz;
PyObject *rc = 0;
if (!PyArg_ParseTuple(arg, "s#:decrypt", &p, &sz)) return (0);
static PyObject *gcmeth_setiv(PyObject *me, PyObject *arg)
{
char *p;
- int sz;
+ Py_ssize_t sz;
if (!PyArg_ParseTuple(arg, "s#:setiv", &p, &sz)) goto end;
+ if (!GCIPHER_C(me)->ops->setiv) VALERR("`setiv' not supported");
if (!GC_CLASS(GCIPHER_C(me))->blksz) VALERR("not a block cipher mode");
if (sz != GC_CLASS(GCIPHER_C(me))->blksz) VALERR("bad IV length");
GC_SETIV(GCIPHER_C(me), p);
static PyObject *gcmeth_bdry(PyObject *me, PyObject *arg)
{
if (!PyArg_ParseTuple(arg, ":bdry")) goto end;
+ if (!GCIPHER_C(me)->ops->bdry) VALERR("`bdry' not supported");
if (!GC_CLASS(GCIPHER_C(me))->blksz) VALERR("not a block cipher mode");
GC_BDRY(GCIPHER_C(me));
RETURN_ME;
};
static PyTypeObject gccipher_pytype_skel = {
- PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */
- "catacomb.GCCipher", /* @tp_name@ */
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "GCCipher", /* @tp_name@ */
sizeof(gccipher_pyobj), /* @tp_basicsize@ */
0, /* @tp_itemsize@ */
0, /* @tp_richcompare@ */
0, /* @tp_weaklistoffset@ */
0, /* @tp_iter@ */
- 0, /* @tp_iternexr@ */
+ 0, /* @tp_iternext@ */
0, /* @tp_methods@ */
0, /* @tp_members@ */
gccipher_pygetset, /* @tp_getset@ */
};
static PyTypeObject gcipher_pytype_skel = {
- PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */
- "catacomb.GCipher", /* @tp_name@ */
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "GCipher", /* @tp_name@ */
sizeof(gcipher_pyobj), /* @tp_basicsize@ */
0, /* @tp_itemsize@ */
0, /* @tp_richcompare@ */
0, /* @tp_weaklistoffset@ */
0, /* @tp_iter@ */
- 0, /* @tp_iternexr@ */
+ 0, /* @tp_iternext@ */
gcipher_pymethods, /* @tp_methods@ */
0, /* @tp_members@ */
0, /* @tp_getset@ */
0 /* @tp_is_gc@ */
};
-/*----- Hash functions ----------------------------------------------------*/
-
-PyTypeObject *gchash_pytype, *ghash_pytype;
+/*----- Authenticated encryption ------------------------------------------*/
-CONVFUNC(gchash, gchash *, GCHASH_CH)
-CONVFUNC(ghash, ghash *, GHASH_H)
+PyTypeObject *gcaead_pytype, *gaeadkey_pytype;
+PyTypeObject *gcaeadaad_pytype, *gaeadaad_pytype;
+PyTypeObject *gcaeadenc_pytype, *gaeadenc_pytype;
+PyTypeObject *gcaeaddec_pytype, *gaeaddec_pytype;
-static PyObject *ghash_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
-{
- char *kwlist[] = { 0 };
- if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", kwlist))
- goto end;
- return (ghash_pywrap((PyObject *)ty, GH_INIT(GCHASH_CH(ty)), f_freeme));
-end:
- return (0);
-}
+CONVFUNC(gcaead, gcaead *, GCAEAD_AEC)
+CONVFUNC(gaeadkey, gaead_key *, GAEADKEY_K)
-PyObject *gchash_pywrap(gchash *ch)
+PyObject *gaeadkey_pywrap(PyObject *cobj, gaead_key *k)
{
- gchash_pyobj *g = newtype(gchash_pytype, 0, ch->name);
- g->ch = ch;
- g->ty.type.tp_basicsize = sizeof(ghash_pyobj);
- g->ty.type.tp_base = ghash_pytype;
- Py_INCREF(ghash_pytype);
- g->ty.type.tp_flags = (Py_TPFLAGS_DEFAULT |
- Py_TPFLAGS_BASETYPE |
- Py_TPFLAGS_HEAPTYPE);
- g->ty.type.tp_alloc = PyType_GenericAlloc;
- g->ty.type.tp_free = 0;
- g->ty.type.tp_new = ghash_pynew;
- PyType_Ready(&g->ty.type);
- return ((PyObject *)g);
-}
+ gaeadkey_pyobj *gk;
-PyObject *ghash_pywrap(PyObject *cobj, ghash *h, unsigned f)
-{
- ghash_pyobj *g;
- if (!cobj) cobj = gchash_pywrap((/*unconst*/ gchash *)GH_CLASS(h));
+ if (!cobj) cobj = gcaead_pywrap((/*unconst*/ gcaead *)GAEAD_CLASS(k));
else Py_INCREF(cobj);
- g = PyObject_NEW(ghash_pyobj, (PyTypeObject *)cobj);
- g->h = h;
- g->f = f;
- return ((PyObject *)g);
+ gk = PyObject_NEW(gaeadkey_pyobj, (PyTypeObject *)cobj);
+ gk->k = k;
+ return ((PyObject *)gk);
}
-static void ghash_pydealloc(PyObject *me)
+static PyObject *gaeadkey_pynew(PyTypeObject *ty,
+ PyObject *arg, PyObject *kw)
{
- if (GHASH_F(me) & f_freeme)
- GH_DESTROY(GHASH_H(me));
- Py_DECREF(me->ob_type);
- FREEOBJ(me);
-}
-
-static PyObject *gchget_name(PyObject *me, void *hunoz)
- { return (PyString_FromString(GCHASH_CH(me)->name)); }
-
-static PyObject *gchget_hashsz(PyObject *me, void *hunoz)
- { return (PyInt_FromLong(GCHASH_CH(me)->hashsz)); }
-
-static PyObject *gchget_bufsz(PyObject *me, void *hunoz)
- { return (PyInt_FromLong(GCHASH_CH(me)->bufsz)); }
+ static const char *const kwlist[] = { "k", 0 };
+ char *k;
+ Py_ssize_t sz;
-static PyObject *ghmeth_hash(PyObject *me, PyObject *arg)
-{
- char *p;
- int sz;
- if (!PyArg_ParseTuple(arg, "s#:hash", &p, &sz)) return (0);
- GH_HASH(GHASH_H(me), p, sz);
- RETURN_ME;
+ if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", KWLIST, &k, &sz))
+ goto end;
+ if (keysz(sz, GCAEAD_AEC(ty)->keysz) != sz) VALERR("bad key length");
+ return (gaeadkey_pywrap((PyObject *)ty,
+ GAEAD_KEY(GCAEAD_AEC(ty), k, sz)));
+end:
+ return (0);
}
-static PyObject *ghmeth_done(PyObject *me, PyObject *arg)
+PyObject *gcaead_pywrap(gcaead *aec)
{
- ghash *g;
- PyObject *rc;
- if (!PyArg_ParseTuple(arg, ":done")) return (0);
- g = GH_COPY(GHASH_H(me));
- rc = bytestring_pywrap(0, g->ops->c->hashsz);
- GH_DONE(g, PyString_AS_STRING(rc));
- GH_DESTROY(g);
- return (rc);
+ gcaead_pyobj *gck;
+ gcaeadaad_pyobj *gca;
+ gcaeadenc_pyobj *gce;
+ gcaeaddec_pyobj *gcd;
+
+#define MKTYPE(obj, thing, newfn, namefmt) do { \
+ (obj) = newtype(gcaead_pytype, 0, 0); \
+ (obj)->ty.ht_name = PyString_FromFormat(namefmt, aec->name); \
+ (obj)->ty.ht_type.tp_name = PyString_AS_STRING((obj)->ty.ht_name); \
+ (obj)->ty.ht_type.tp_basicsize = sizeof(gaead##thing##_pyobj); \
+ (obj)->ty.ht_type.tp_base = gaead##thing##_pytype; \
+ Py_INCREF(gaead##thing##_pytype); \
+ (obj)->ty.ht_type.tp_flags = \
+ (Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HEAPTYPE); \
+ (obj)->ty.ht_type.tp_alloc = PyType_GenericAlloc; \
+ (obj)->ty.ht_type.tp_free = 0; \
+ (obj)->ty.ht_type.tp_new = newfn; \
+ typeready(&(obj)->ty.ht_type); \
+} while (0)
+
+ MKTYPE(gck, key, gaeadkey_pynew, "%s(key)");
+ MKTYPE(gca, aad, abstract_pynew, "%s(aad-hash)");
+ MKTYPE(gce, enc, abstract_pynew, "%s(encrypt)");
+ MKTYPE(gcd, dec, abstract_pynew, "%s(decrypt)");
+
+#undef MKTYPE
+
+ gck->aec = aec; gck->aad = gca; gck->enc = gce; gck->dec = gcd;
+ gca->key = gce->key = gcd->key = gck;
+ return ((PyObject *)gck);
}
-static PyGetSetDef gchash_pygetset[] = {
-#define GETSETNAME(op, name) gch##op##_##name
- GET (bufsz, "CH.bufsz -> hash buffer size, or zero")
- GET (hashsz, "CH.blksz -> hash output size")
- GET (name, "CH.name -> name of this kind of hash")
-#undef GETSETNAME
- { 0 }
-};
+static void gaeadkey_pydealloc(PyObject *me)
+ { GAEAD_DESTROY(GAEADKEY_K(me)); Py_DECREF(me->ob_type); FREEOBJ(me); }
-static PyMethodDef ghash_pymethods[] = {
-#define METHNAME(name) ghmeth_##name
- METH (hash, "H.hash(M)")
- METH (done, "H.done() -> HASH")
-#undef METHNAME
- { 0 }
-};
+static PyObject *gcaeget_name(PyObject *me, void *hunoz)
+ { return (PyString_FromString(GCAEAD_AEC(me)->name)); }
-static PyTypeObject gchash_pytype_skel = {
- PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */
- "catacomb.GCHash", /* @tp_name@ */
- sizeof(gchash_pyobj), /* @tp_basicsize@ */
- 0, /* @tp_itemsize@ */
+static PyObject *gcaeget_keysz(PyObject *me, void *hunoz)
+ { return (keysz_pywrap(GCAEAD_AEC(me)->keysz)); }
- 0, /* @tp_dealloc@ */
- 0, /* @tp_print@ */
- 0, /* @tp_getattr@ */
- 0, /* @tp_setattr@ */
- 0, /* @tp_compare@ */
- 0, /* @tp_repr@ */
- 0, /* @tp_as_number@ */
- 0, /* @tp_as_sequence@ */
- 0, /* @tp_as_mapping@ */
- 0, /* @tp_hash@ */
- 0, /* @tp_call@ */
- 0, /* @tp_str@ */
- 0, /* @tp_getattro@ */
- 0, /* @tp_setattro@ */
- 0, /* @tp_as_buffer@ */
- Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
- Py_TPFLAGS_BASETYPE,
+static PyObject *gcaeget_noncesz(PyObject *me, void *hunoz)
+ { return (keysz_pywrap(GCAEAD_AEC(me)->noncesz)); }
- /* @tp_doc@ */
-"Hash function metaclass.",
+static PyObject *gcaeget_tagsz(PyObject *me, void *hunoz)
+ { return (keysz_pywrap(GCAEAD_AEC(me)->tagsz)); }
- 0, /* @tp_traverse@ */
- 0, /* @tp_clear@ */
- 0, /* @tp_richcompare@ */
- 0, /* @tp_weaklistoffset@ */
- 0, /* @tp_iter@ */
- 0, /* @tp_iternexr@ */
- 0, /* @tp_methods@ */
- 0, /* @tp_members@ */
- gchash_pygetset, /* @tp_getset@ */
- 0, /* @tp_base@ */
- 0, /* @tp_dict@ */
- 0, /* @tp_descr_get@ */
- 0, /* @tp_descr_set@ */
- 0, /* @tp_dictoffset@ */
- 0, /* @tp_init@ */
- PyType_GenericAlloc, /* @tp_alloc@ */
- abstract_pynew, /* @tp_new@ */
- 0, /* @tp_free@ */
- 0 /* @tp_is_gc@ */
-};
+static PyObject *gcaeget_blksz(PyObject *me, void *hunoz)
+ { return (PyInt_FromLong(GCAEAD_AEC(me)->blksz)); }
-static PyTypeObject ghash_pytype_skel = {
- PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */
- "catacomb.GHash", /* @tp_name@ */
- sizeof(ghash_pyobj), /* @tp_basicsize@ */
- 0, /* @tp_itemsize@ */
+static PyObject *gcaeget_bufsz(PyObject *me, void *hunoz)
+ { return (PyInt_FromLong(GCAEAD_AEC(me)->bufsz)); }
- ghash_pydealloc, /* @tp_dealloc@ */
- 0, /* @tp_print@ */
- 0, /* @tp_getattr@ */
- 0, /* @tp_setattr@ */
- 0, /* @tp_compare@ */
- 0, /* @tp_repr@ */
- 0, /* @tp_as_number@ */
- 0, /* @tp_as_sequence@ */
- 0, /* @tp_as_mapping@ */
- 0, /* @tp_hash@ */
- 0, /* @tp_call@ */
- 0, /* @tp_str@ */
- 0, /* @tp_getattro@ */
- 0, /* @tp_setattro@ */
- 0, /* @tp_as_buffer@ */
- Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
- Py_TPFLAGS_BASETYPE,
+static PyObject *gcaeget_ohd(PyObject *me, void *hunoz)
+ { return (PyInt_FromLong(GCAEAD_AEC(me)->ohd)); }
- /* @tp_doc@ */
-"Hash function, abstract base class.",
+static PyObject *gcaeget_flags(PyObject *me, void *hunoz)
+ { return (PyInt_FromLong(GCAEAD_AEC(me)->f)); }
- 0, /* @tp_traverse@ */
- 0, /* @tp_clear@ */
- 0, /* @tp_richcompare@ */
- 0, /* @tp_weaklistoffset@ */
- 0, /* @tp_iter@ */
- 0, /* @tp_iternexr@ */
- ghash_pymethods, /* @tp_methods@ */
- 0, /* @tp_members@ */
- 0, /* @tp_getset@ */
- 0, /* @tp_base@ */
- 0, /* @tp_dict@ */
- 0, /* @tp_descr_get@ */
- 0, /* @tp_descr_set@ */
- 0, /* @tp_dictoffset@ */
- 0, /* @tp_init@ */
- PyType_GenericAlloc, /* @tp_alloc@ */
- abstract_pynew, /* @tp_new@ */
- 0, /* @tp_free@ */
- 0 /* @tp_is_gc@ */
+static PyGetSetDef gcaead_pygetset[] = {
+#define GETSETNAME(op, name) gcae##op##_##name
+ GET (keysz, "AEC.keysz -> acceptable key sizes")
+ GET (noncesz, "AEC.noncesz -> acceptable nonce sizes")
+ GET (tagsz, "AEC.tagsz -> acceptable tag sizes")
+ GET (blksz, "AEC.blksz -> block size, or zero")
+ GET (bufsz, "AEC.bufsz -> amount of data buffered internally")
+ GET (ohd, "AEC.ohd -> maximum encryption overhead")
+ GET (name, "AEC.name -> name of this kind of AEAD scheme")
+ GET (flags, "AEC.flags -> mask of `AEADF_...' flags")
+#undef GETSETNAME
+ { 0 }
};
-/*----- Message authentication --------------------------------------------*/
+static PyObject *gaekmeth_aad(PyObject *me, PyObject *arg)
+{
+ const gaead_key *k = GAEADKEY_K(me);
+ PyObject *rc = 0;
-PyTypeObject *gcmac_pytype, *gmac_pytype, *gmhash_pytype;
+ if (!PyArg_ParseTuple(arg, ":aad")) return (0);
+ if (k->ops->c->f&AEADF_AADNDEP)
+ VALERR("aad must be associated with enc/dec op");
+ rc = gaeadaad_pywrap((PyObject *)GCAEAD_AAD(me->ob_type),
+ GAEAD_AAD(k), 0, 0);
+end:
+ return (rc);
+}
-CONVFUNC(gcmac, gcmac *, GCMAC_CM)
-CONVFUNC(gmac, gmac *, GMAC_M)
-CONVFUNC(gmhash, ghash *, GHASH_H)
+static int check_aead_encdec(const gcaead *aec, unsigned *f_out, size_t nsz,
+ PyObject *hszobj, size_t *hsz_out,
+ PyObject *mszobj, size_t *msz_out,
+ PyObject *tszobj, size_t *tsz_out)
+{
+ unsigned f = 0, miss;
+ int rc = -1;
+
+ if (hszobj != Py_None)
+ { f |= AEADF_PCHSZ; if (!convszt(hszobj, hsz_out)) goto end; }
+ if (mszobj != Py_None)
+ { f |= AEADF_PCMSZ; if (!convszt(mszobj, msz_out)) goto end; }
+ if (tszobj != Py_None)
+ { f |= AEADF_PCTSZ; if (!convszt(tszobj, tsz_out)) goto end; }
+ miss = aec->f&~f;
+ if (miss&AEADF_PCHSZ) VALERR("header length precommitment required");
+ if (miss&AEADF_PCMSZ) VALERR("message length precommitment required");
+ if (miss&AEADF_PCTSZ) VALERR("tag length precommitment required");
+ if (keysz(nsz, aec->noncesz) != nsz) VALERR("bad nonce length");
+ if (tszobj != Py_None && keysz(*tsz_out, aec->tagsz) != *tsz_out)
+ VALERR("bad tag length");
+ *f_out = f | aec->f; rc = 0;
+end:
+ return (rc);
+}
-static PyObject *gmac_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
+static PyObject *gaekmeth_enc(PyObject *me, PyObject *arg, PyObject *kw)
{
- char *kwlist[] = { "k", 0 };
- char *k;
- int sz;
+ static const char *const kwlist[] = { "nonce", "hsz", "msz", "tsz", 0 };
+ const gaead_key *k = GAEADKEY_K(me);
+ gaead_enc *e;
+ PyObject *rc = 0;
+ char *n; Py_ssize_t nsz;
+ PyObject *hszobj = Py_None, *mszobj = Py_None, *tszobj = Py_None;
+ size_t hsz = 0, msz = 0, tsz = 0;
+ unsigned f;
- if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &sz))
+ if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#|OOO:enc", KWLIST,
+ &n, &nsz, &hszobj, &mszobj, &tszobj))
goto end;
- if (keysz(sz, GCMAC_CM(ty)->keysz) != sz) VALERR("bad key length");
- return (gmac_pywrap((PyObject *)ty,
- GM_KEY(GCMAC_CM(ty), k, sz),
- f_freeme));
+ if (check_aead_encdec(k->ops->c, &f, nsz,
+ hszobj, &hsz, mszobj, &msz, tszobj, &tsz))
+ goto end;
+ e = GAEAD_ENC(GAEADKEY_K(me), n, nsz, hsz, msz, tsz);
+ if (!e) VALERR("bad aead parameter combination");
+ rc = gaeadenc_pywrap((PyObject *)GCAEAD_ENC(me->ob_type),
+ e, f, hsz, msz, tsz);
end:
- return (0);
+ return (rc);
}
-static PyObject *gmhash_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
+static PyObject *gaekmeth_dec(PyObject *me, PyObject *arg, PyObject *kw)
{
- char *kwlist[] = { 0 };
- ghash_pyobj *g;
+ static const char *const kwlist[] = { "nonce", "hsz", "csz", "tsz", 0 };
+ const gaead_key *k = GAEADKEY_K(me);
+ gaead_dec *d;
+ PyObject *rc = 0;
+ char *n; Py_ssize_t nsz;
+ PyObject *hszobj = Py_None, *cszobj = Py_None, *tszobj = Py_None;
+ size_t hsz = 0, csz = 0, tsz = 0;
+ unsigned f;
- if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", kwlist)) return (0);
- g = PyObject_NEW(ghash_pyobj, ty);
- g->h = GM_INIT(GMAC_M(ty));
- g->f = f_freeme;
- Py_INCREF(ty);
- return ((PyObject *)g);
+ if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#|OOO:dec", KWLIST,
+ &n, &nsz, &hszobj, &cszobj, &tszobj))
+ goto end;
+ if (check_aead_encdec(k->ops->c, &f, nsz,
+ hszobj, &hsz, cszobj, &csz, tszobj, &tsz))
+ goto end;
+ d = GAEAD_DEC(GAEADKEY_K(me), n, nsz, hsz, csz, tsz);
+ if (!d) VALERR("bad aead parameter combination");
+ rc = gaeaddec_pywrap((PyObject *)GCAEAD_DEC(me->ob_type),
+ d, f, hsz, csz, tsz);
+end:
+ return (rc);
}
-PyObject *gcmac_pywrap(gcmac *cm)
+static PyMethodDef gaeadkey_pymethods[] = {
+#define METHNAME(name) gaekmeth_##name
+ METH (aad, "KEY.aad() -> AAD")
+ KWMETH(enc, "KEY.enc(NONCE, [hsz], [msz], [tsz]) -> ENC")
+ KWMETH(dec, "KEY.dec(NONCE, [hsz], [csz], [tsz]) -> DEC")
+#undef METHNAME
+ { 0 }
+};
+
+PyObject *gaeadaad_pywrap(PyObject *cobj, gaead_aad *a,
+ unsigned f, size_t hsz)
{
- gcmac_pyobj *g = newtype(gcmac_pytype, 0, cm->name);
- g->cm = cm;
- g->ty.type.tp_basicsize = sizeof(gmac_pyobj);
- g->ty.type.tp_base = gmac_pytype;
- Py_INCREF(gmac_pytype);
- g->ty.type.tp_flags = (Py_TPFLAGS_DEFAULT |
- Py_TPFLAGS_BASETYPE |
- Py_TPFLAGS_HEAPTYPE);
- g->ty.type.tp_alloc = PyType_GenericAlloc;
- g->ty.type.tp_free = 0;
- g->ty.type.tp_new = gmac_pynew;
- PyType_Ready(&g->ty.type);
- return ((PyObject *)g);
+ gaeadaad_pyobj *ga;
+
+ assert(cobj); Py_INCREF(cobj);
+ ga = PyObject_NEW(gaeadaad_pyobj, (PyTypeObject *)cobj);
+ ga->a = a; ga->f = f; ga->hsz = hsz; ga->hlen = 0;
+ return ((PyObject *)ga);
}
-PyObject *gmac_pywrap(PyObject *cobj, gmac *m, unsigned f)
+static void gaeadaad_pydealloc(PyObject *me)
{
- gmac_pyobj *g;
- if (!cobj) cobj = gcmac_pywrap((/*unconst*/ gcmac *)GM_CLASS(m));
- else Py_INCREF(cobj);
- g = newtype((PyTypeObject *)cobj, 0, 0);
- g->ty.name = PyString_FromFormat("%s(keyed)", m->ops->c->name);
- g->ty.type.tp_name = PyString_AS_STRING(g->ty.name);
- g->ty.type.tp_base = gmhash_pytype;
- Py_INCREF(gmac_pytype);
- g->ty.type.tp_flags = (Py_TPFLAGS_DEFAULT |
- Py_TPFLAGS_BASETYPE |
- Py_TPFLAGS_HEAPTYPE);
- g->ty.type.tp_alloc = PyType_GenericAlloc;
- g->ty.type.tp_free = 0;
- g->ty.type.tp_new = gmhash_pynew;
- PyType_Ready(&g->ty.type);
- g->m = m;
- g->f = f;
- return ((PyObject *)g);
+ gaeadaad_pyobj *ga = (gaeadaad_pyobj *)me;
+
+ if (ga->a) GAEAD_DESTROY(ga->a);
+ Py_DECREF(me->ob_type); FREEOBJ(me);
}
-static void gmac_pydealloc(PyObject *me)
+static int gaea_check(PyObject *me)
{
- if (GMAC_F(me) & f_freeme)
- GM_DESTROY(GMAC_M(me));
- Py_DECREF(me->ob_type);
- PyType_Type.tp_dealloc(me);
+ gaeadaad_pyobj *ga = (gaeadaad_pyobj *)me;
+ int rc = -1;
+
+ if ((ga->f&AEADF_DEAD) || !ga->a) VALERR("aad object no longer active");
+ rc = 0;
+end:
+ return (rc);
}
-static PyObject *gcmget_name(PyObject *me, void *hunoz)
- { return (PyString_FromString(GCMAC_CM(me)->name)); }
+static void gaea_invalidate(gaeadaad_pyobj *ga)
+ { if (ga) ga->f |= AEADF_DEAD; }
-static PyObject *gcmget_keysz(PyObject *me, void *hunoz)
- { return (keysz_pywrap(GCMAC_CM(me)->keysz)); }
+static void gaea_sever(gaeadaad_pyobj **ga_inout)
+{
+ gaeadaad_pyobj *ga = *ga_inout;
+ if (ga) { ga->f |= AEADF_DEAD; ga->a = 0; Py_DECREF(ga); *ga_inout = 0; }
+}
-static PyObject *gcmget_tagsz(PyObject *me, void *hunoz)
- { return (PyInt_FromLong(GCMAC_CM(me)->hashsz)); }
+static PyObject *gaeaget_hsz(PyObject *me, void *hunoz)
+{
+ if (gaea_check(me)) return (0);
+ else if (GAEADAAD_F(me)&AEADF_PCHSZ) return getulong(GAEADAAD_HSZ(me));
+ else RETURN_NONE;
+}
-static PyGetSetDef gcmac_pygetset[] = {
-#define GETSETNAME(op, name) gcm##op##_##name
- GET (keysz, "CM.keysz -> acceptable key sizes")
- GET (tagsz, "CM.tagsz -> MAC output size")
- GET (name, "CM.name -> name of this kind of MAC")
+static PyObject *gaeaget_hlen(PyObject *me, void *hunoz)
+ { return (gaea_check(me) ? 0 : getulong(GAEADAAD_HLEN(me))); }
+
+static PyGetSetDef gaeadaad_pygetset[] = {
+#define GETSETNAME(op, name) gaea##op##_##name
+ GET (hsz, "AAD.hsz -> precommitted header length or `None'")
+ GET (hlen, "AAD.hlen -> header length so far")
#undef GETSETNAME
{ 0 }
};
-static PyTypeObject gcmac_pytype_skel = {
- PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */
- "catacomb.GCMAC", /* @tp_name@ */
- sizeof(gchash_pyobj), /* @tp_basicsize@ */
- 0, /* @tp_itemsize@ */
+static PyObject *gaeameth_copy(PyObject *me, PyObject *arg)
+{
+ PyObject *rc = 0;
- 0, /* @tp_dealloc@ */
- 0, /* @tp_print@ */
- 0, /* @tp_getattr@ */
- 0, /* @tp_setattr@ */
- 0, /* @tp_compare@ */
- 0, /* @tp_repr@ */
- 0, /* @tp_as_number@ */
- 0, /* @tp_as_sequence@ */
- 0, /* @tp_as_mapping@ */
- 0, /* @tp_hash@ */
- 0, /* @tp_call@ */
- 0, /* @tp_str@ */
- 0, /* @tp_getattro@ */
+ if (!PyArg_ParseTuple(arg, ":copy")) goto end;
+ if (gaea_check(me)) goto end;
+ if (GAEADAAD_F(me)&AEADF_AADNDEP)
+ VALERR("can't duplicate nonce-dependent aad");
+ rc = gaeadaad_pywrap((PyObject *)me->ob_type,
+ GAEAD_DUP(GAEADAAD_A(me)), 0, 0);
+ GAEADAAD_HLEN(rc) = GAEADAAD_HLEN(me);
+end:
+ return (rc);
+}
+
+static int gaeadaad_hash(PyObject *me, const void *h, size_t hsz)
+{
+ gaeadaad_pyobj *ga = (gaeadaad_pyobj *)me;
+ int rc = -1;
+
+ if (gaea_check(me)) goto end;
+ if ((ga->f&AEADF_NOAAD) && hsz)
+ VALERR("header data not permitted");
+ if ((ga->f&AEADF_PCHSZ) && hsz > ga->hsz - ga->hlen)
+ VALERR("too large for precommitted header length");
+ GAEAD_HASH(ga->a, h, hsz); ga->hlen += hsz;
+ rc = 0;
+end:
+ return (rc);
+}
+
+
+static PyObject *gaeameth_hash(PyObject *me, PyObject *arg)
+{
+ char *h; Py_ssize_t hsz;
+
+ if (!PyArg_ParseTuple(arg, "s#:hash", &h, &hsz)) return (0);
+ if (gaeadaad_hash(me, h, hsz)) return (0);
+ RETURN_ME;
+}
+
+#define GAEAMETH_HASHU_(n, W, w) \
+ static PyObject *gaeameth_hashu##w(PyObject *me, PyObject *arg) \
+ { \
+ uint##n x; octet b[SZ_##W]; \
+ if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) return (0); \
+ STORE##W(b, x); if (gaeadaad_hash(me, b, sizeof(b))) return (0); \
+ RETURN_ME; \
+ }
+DOUINTCONV(GAEAMETH_HASHU_)
+
+#define GAEAMETH_HASHBUF_(n, W, w) \
+ static PyObject *gaeameth_hashbuf##w(PyObject *me, PyObject *arg) \
+ { \
+ char *p; Py_ssize_t sz; octet b[SZ_##W]; \
+ if (!PyArg_ParseTuple(arg, "s#:hashbuf" #w, &p, &sz)) goto end; \
+ if (sz > MASK##n) TYERR("string too long"); \
+ STORE##W(b, sz); if (gaeadaad_hash(me, b, sizeof(b))) goto end; \
+ if (gaeadaad_hash(me, p, sz)) goto end; \
+ RETURN_ME; \
+ end: \
+ return (0); \
+ }
+DOUINTCONV(GAEAMETH_HASHBUF_)
+
+static PyObject *gaeameth_hashstrz(PyObject *me, PyObject *arg)
+{
+ char *p;
+ if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0);
+ if (gaeadaad_hash(me, p, strlen(p) + 1)) return (0);
+ RETURN_ME;
+}
+
+static PyMethodDef gaeadaad_pymethods[] = {
+#define METHNAME(name) gaeameth_##name
+ METH (copy, "AAD.copy() -> AAD'")
+ METH (hash, "AAD.hash(H)")
+#define METHU_(n, W, w) METH(hashu##w, "AAD.hashu" #w "(WORD)")
+ DOUINTCONV(METHU_)
+#undef METHU_
+#define METHBUF_(n, W, w) METH(hashbuf##w, "AAD.hashbuf" #w "(BYTES)")
+ DOUINTCONV(METHBUF_)
+#undef METHBUF_
+ METH (hashstrz, "AAD.hashstrz(STRING)")
+#undef METHNAME
+ { 0 }
+};
+
+PyObject *gaeadenc_pywrap(PyObject *cobj, gaead_enc *e, unsigned f,
+ size_t hsz, size_t msz, size_t tsz)
+{
+ gaeadenc_pyobj *ge;
+
+ assert(cobj); Py_INCREF(cobj);
+ ge = PyObject_NEW(gaeadenc_pyobj, (PyTypeObject *)cobj);
+ ge->e = e; ge->f = f; ge->hsz = hsz; ge->msz = msz; ge->tsz = tsz;
+ ge->aad = 0; ge->mlen = 0;
+ return ((PyObject *)ge);
+}
+
+static void gaeadenc_pydealloc(PyObject *me)
+{
+ gaeadenc_pyobj *ge = (gaeadenc_pyobj *)me;
+
+ gaea_sever(&ge->aad); GAEAD_DESTROY(ge->e);
+ Py_DECREF(me->ob_type); FREEOBJ(me);
+}
+
+static PyObject *gaeeget_hsz(PyObject *me, void *hunoz)
+{
+ if (GAEADENC_F(me)&AEADF_PCHSZ) return getulong(GAEADENC_HSZ(me));
+ else RETURN_NONE;
+}
+
+static PyObject *gaeeget_msz(PyObject *me, void *hunoz)
+{
+ if (GAEADENC_F(me)&AEADF_PCMSZ) return getulong(GAEADENC_MSZ(me));
+ else RETURN_NONE;
+}
+
+static PyObject *gaeeget_tsz(PyObject *me, void *hunoz)
+{
+ if (GAEADENC_F(me)&AEADF_PCTSZ) return getulong(GAEADENC_TSZ(me));
+ else RETURN_NONE;
+}
+
+static PyObject *gaeeget_mlen(PyObject *me, void *hunoz)
+ { return getulong(GAEADENC_MLEN(me)); }
+
+static PyGetSetDef gaeadenc_pygetset[] = {
+#define GETSETNAME(op, name) gaee##op##_##name
+ GET (hsz, "ENC.hsz -> precommitted header length or `None'")
+ GET (msz, "ENC.msz -> precommitted message length or `None'")
+ GET (tsz, "ENC.tsz -> precommitted tag length or `None'")
+ GET (mlen, "ENC.mlen -> message length so far")
+#undef GETSETNAME
+ { 0 }
+};
+
+static PyObject *gaeemeth_aad(PyObject *me, PyObject *arg)
+{
+ gaeadenc_pyobj *ge = (gaeadenc_pyobj *)me;
+ PyObject *rc = 0;
+
+ if (!PyArg_ParseTuple(arg, ":aad")) return (0);
+ if (!(ge->f&AEADF_AADNDEP))
+ rc = gaeadaad_pywrap((PyObject *)GCAEADENC_KEY(ge->ob_type)->aad,
+ GAEAD_AAD(ge->e), 0, 0);
+ else {
+ if ((ge->f&AEADF_AADFIRST) && ge->mlen)
+ VALERR("too late for aad");
+ if (!ge->aad)
+ ge->aad = (gaeadaad_pyobj *)
+ gaeadaad_pywrap((PyObject *)GCAEADENC_KEY(ge->ob_type)->aad,
+ GAEAD_AAD(ge->e), ge->f&(AEADF_PCHSZ | AEADF_NOAAD),
+ ge->hsz);
+ Py_INCREF(ge->aad);
+ rc = (PyObject *)ge->aad;
+ }
+end:
+ return (rc);
+}
+
+static PyObject *gaeemeth_reinit(PyObject *me, PyObject *arg, PyObject *kw)
+{
+ static const char *const kwlist[] = { "nonce", "hsz", "msz", "tsz", 0 };
+ gaeadenc_pyobj *ge = (gaeadenc_pyobj *)me;
+ char *n; Py_ssize_t nsz;
+ PyObject *hszobj = Py_None, *mszobj = Py_None, *tszobj = Py_None;
+ size_t hsz = 0, msz = 0, tsz = 0;
+ unsigned f;
+
+ if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#|OOO:enc", KWLIST,
+ &n, &nsz, &hszobj, &mszobj, &tszobj))
+ goto end;
+ if (check_aead_encdec(ge->e->ops->c, &f, nsz,
+ hszobj, &hsz, mszobj, &msz, tszobj, &tsz))
+ goto end;
+ if (GAEAD_REINIT(ge->e, n, nsz, hsz, msz, tsz))
+ VALERR("bad aead parameter combination");
+ gaea_sever(&ge->aad);
+ ge->f = f; ge->hsz = hsz; ge->msz = msz; ge->tsz = tsz;
+end:
+ return (0);
+}
+
+static PyObject *gaeemeth_encrypt(PyObject *me, PyObject *arg)
+{
+ gaeadenc_pyobj *ge = (gaeadenc_pyobj *)me;
+ char *m; Py_ssize_t msz;
+ char *c = 0; size_t csz; buf b;
+ int err;
+ PyObject *rc = 0;
+
+ if (!PyArg_ParseTuple(arg, "s#:encrypt", &m, &msz)) goto end;
+ if (ge->f&AEADF_AADFIRST) {
+ if ((ge->f&AEADF_PCHSZ) && (ge->aad ? ge->aad->hlen : 0) != ge->hsz)
+ VALERR("header doesn't match precommitted length");
+ gaea_invalidate(ge->aad);
+ }
+ if ((ge->f&AEADF_PCMSZ) && msz > ge->msz - ge->mlen)
+ VALERR("too large for precommitted message length");
+ csz = msz + ge->e->ops->c->bufsz; c = xmalloc(csz); buf_init(&b, c, csz);
+ err = GAEAD_ENCRYPT(ge->e, m, msz, &b); assert(!err); (void)err;
+ buf_flip(&b); rc = bytestring_pywrapbuf(&b); ge->mlen += msz;
+end:
+ xfree(c);
+ return (rc);
+}
+
+static PyObject *gaeemeth_done(PyObject *me, PyObject *arg, PyObject *kw)
+{
+ static const char *const kwlist[] = { "tsz", "aad", 0 };
+ gaeadenc_pyobj *ge = (gaeadenc_pyobj *)me;
+ PyObject *aad = Py_None;
+ char *c = 0; size_t csz; buf b;
+ PyObject *tszobj = Py_None; PyObject *tag; size_t tsz;
+ int err;
+ PyObject *rc = 0;
+
+ if (!PyArg_ParseTupleAndKeywords(arg, kw, "|OO:done", KWLIST,
+ &tszobj, &aad))
+ goto end;
+ if (tszobj != Py_None && !convszt(tszobj, &tsz)) goto end;
+ if (aad != Py_None &&
+ !PyObject_TypeCheck(aad,
+ (PyTypeObject *)GCAEADENC_KEY(me->ob_type)->aad))
+ TYERR("wanted aad");
+ if ((ge->f&AEADF_AADNDEP) && aad != Py_None && aad != (PyObject *)ge->aad)
+ VALERR("mismatched aad");
+ if ((ge->f&AEADF_PCHSZ) &&
+ (aad == Py_None ? 0 : GAEADAAD_HLEN(aad)) != ge->hsz)
+ VALERR("header doesn't match precommitted length");
+ if ((ge->f&AEADF_PCMSZ) && ge->mlen != ge->msz)
+ VALERR("message doesn't match precommitted length");
+ if (tszobj == Py_None) {
+ if (ge->f&AEADF_PCTSZ) tsz = ge->tsz;
+ else tsz = keysz(0, ge->e->ops->c->tagsz);
+ } else {
+ if ((ge->f&AEADF_PCTSZ) && tsz != ge->tsz)
+ VALERR("tag length doesn't match precommitted value");
+ if (keysz(tsz, ge->e->ops->c->tagsz) != tsz) VALERR("bad tag length");
+ }
+ csz = ge->e->ops->c->bufsz; c = xmalloc(csz); buf_init(&b, c, csz);
+ tag = bytestring_pywrap(0, tsz);
+ err = GAEAD_DONE(ge->e, aad == Py_None ? 0 : GAEADAAD_A(aad), &b,
+ PyString_AS_STRING(tag), tsz);
+ assert(!err); (void)err;
+ buf_flip(&b); rc = Py_BuildValue("NN", bytestring_pywrapbuf(&b), tag);
+end:
+ xfree(c);
+ return (rc);
+}
+
+static PyMethodDef gaeadenc_pymethods[] = {
+#define METHNAME(name) gaeemeth_##name
+ METH (aad, "ENC.aad() -> AAD")
+ KWMETH(reinit, "ENC.reinit(NONCE, [hsz], [msz], [tsz])")
+ METH (encrypt, "ENC.encrypt(MSG) -> CT")
+ KWMETH(done, "ENC.done([tsz], [aad]) -> CT, TAG")
+#undef METHNAME
+ { 0 }
+};
+
+PyObject *gaeaddec_pywrap(PyObject *cobj, gaead_dec *d, unsigned f,
+ size_t hsz, size_t csz, size_t tsz)
+{
+ gaeaddec_pyobj *gd;
+ assert(cobj); Py_INCREF(cobj);
+ gd = PyObject_NEW(gaeaddec_pyobj, (PyTypeObject *)cobj);
+ gd->d = d; gd->f = f; gd->hsz = hsz; gd->csz = csz; gd->tsz = tsz;
+ gd->aad = 0; gd->clen = 0;
+ return ((PyObject *)gd);
+}
+
+static void gaeaddec_pydealloc(PyObject *me)
+{
+ gaeaddec_pyobj *gd = (gaeaddec_pyobj *)me;
+
+ gaea_sever(&gd->aad); GAEAD_DESTROY(GAEADDEC_D(me));
+ Py_DECREF(me->ob_type); FREEOBJ(me);
+}
+
+static PyObject *gaedget_hsz(PyObject *me, void *hunoz)
+{
+ if (GAEADDEC_F(me)&AEADF_PCHSZ) return getulong(GAEADDEC_HSZ(me));
+ else RETURN_NONE;
+}
+
+static PyObject *gaedget_csz(PyObject *me, void *hunoz)
+{
+ if (GAEADDEC_F(me)&AEADF_PCMSZ) return getulong(GAEADDEC_CSZ(me));
+ else RETURN_NONE;
+}
+
+static PyObject *gaedget_tsz(PyObject *me, void *hunoz)
+{
+ if (GAEADDEC_F(me)&AEADF_PCTSZ) return getulong(GAEADDEC_TSZ(me));
+ else RETURN_NONE;
+}
+
+static PyObject *gaedget_clen(PyObject *me, void *hunoz)
+ { return getulong(GAEADDEC_CLEN(me)); }
+
+static PyGetSetDef gaeaddec_pygetset[] = {
+#define GETSETNAME(op, name) gaed##op##_##name
+ GET (hsz, "DEC.hsz -> precommitted header length or `None'")
+ GET (csz, "DEC.csz -> precommitted ciphertext length or `None'")
+ GET (tsz, "DEC.tsz -> precommitted tag length or `None'")
+ GET (clen, "DEC.clen -> ciphertext length so far")
+#undef GETSETNAME
+ { 0 }
+};
+
+static PyObject *gaedmeth_aad(PyObject *me, PyObject *arg)
+{
+ gaeaddec_pyobj *gd = (gaeaddec_pyobj *)me;
+
+ if (!PyArg_ParseTuple(arg, ":aad")) return (0);
+ if (!(gd->f&AEADF_AADNDEP))
+ return (gaeadaad_pywrap((PyObject *)GCAEADDEC_KEY(gd->ob_type)->aad,
+ GAEAD_AAD(gd->d), 0, 0));
+ else {
+ if (!gd->aad)
+ gd->aad = (gaeadaad_pyobj *)
+ gaeadaad_pywrap((PyObject *)GCAEADENC_KEY(gd->ob_type)->aad,
+ GAEAD_AAD(gd->d), gd->f&(AEADF_PCHSZ | AEADF_NOAAD),
+ gd->hsz);
+ Py_INCREF(gd->aad);
+ return ((PyObject *)gd->aad);
+ }
+}
+
+static PyObject *gaedmeth_reinit(PyObject *me, PyObject *arg, PyObject *kw)
+{
+ static const char *const kwlist[] = { "nonce", "hsz", "csz", "tsz", 0 };
+ gaeaddec_pyobj *gd = (gaeaddec_pyobj *)me;
+ char *n; Py_ssize_t nsz;
+ PyObject *hszobj = Py_None, *cszobj = Py_None, *tszobj = Py_None;
+ size_t hsz = 0, csz = 0, tsz = 0;
+ unsigned f;
+
+ if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#|OOO:enc", KWLIST,
+ &n, &nsz, &hszobj, &cszobj, &tszobj))
+ goto end;
+ if (check_aead_encdec(gd->d->ops->c, &f, nsz,
+ hszobj, &hsz, cszobj, &csz, tszobj, &tsz))
+ goto end;
+ if (GAEAD_REINIT(gd->d, n, nsz, hsz, csz, tsz))
+ VALERR("bad aead parameter combination");
+ gaea_sever(&gd->aad);
+ gd->f = f; gd->hsz = hsz; gd->csz = csz; gd->tsz = tsz;
+end:
+ return (0);
+}
+
+static PyObject *gaedmeth_decrypt(PyObject *me, PyObject *arg)
+{
+ gaeaddec_pyobj *gd = (gaeaddec_pyobj *)me;
+ char *c; Py_ssize_t csz;
+ char *m = 0; size_t msz; buf b;
+ int err;
+ PyObject *rc = 0;
+
+ if (!PyArg_ParseTuple(arg, "s#:decrypt", &c, &csz)) goto end;
+ if (gd->f&AEADF_AADFIRST) {
+ if ((gd->f&AEADF_PCHSZ) && (gd->aad ? gd->aad->hlen : 0) != gd->hsz)
+ VALERR("header doesn't match precommitted length");
+ gaea_invalidate(gd->aad);
+ }
+ if ((gd->f&AEADF_PCMSZ) && csz > gd->csz - gd->clen)
+ VALERR("too large for precommitted message length");
+ msz = csz + gd->d->ops->c->bufsz; m = xmalloc(msz); buf_init(&b, m, msz);
+ err = GAEAD_DECRYPT(gd->d, c, csz, &b); assert(!err); (void)err;
+ buf_flip(&b); rc = bytestring_pywrapbuf(&b); gd->clen += csz;
+end:
+ xfree(m);
+ return (rc);
+}
+
+static PyObject *gaedmeth_done(PyObject *me, PyObject *arg, PyObject *kw)
+{
+ static const char *const kwlist[] = { "tag", "aad", 0 };
+ gaeaddec_pyobj *gd = (gaeaddec_pyobj *)me;
+ PyObject *aad = Py_None;
+ char *t; Py_ssize_t tsz;
+ char *m = 0; size_t msz; buf b;
+ int err;
+ PyObject *rc = 0;
+
+ if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#|O:done", KWLIST,
+ &t, &tsz, &aad))
+ goto end;
+ if (aad != Py_None &&
+ !PyObject_TypeCheck(aad,
+ (PyTypeObject *)GCAEADENC_KEY(me->ob_type)->aad))
+ TYERR("wanted aad");
+ if ((gd->f&AEADF_AADNDEP) && aad != Py_None && aad != (PyObject *)gd->aad)
+ VALERR("mismatched aad");
+ if ((gd->f&AEADF_PCHSZ) &&
+ (aad == Py_None ? 0 : GAEADAAD_HLEN(aad)) != gd->hsz)
+ VALERR("header doesn't match precommitted length");
+ if ((gd->f&AEADF_PCMSZ) && gd->clen != gd->csz)
+ VALERR("message doesn't match precommitted length");
+ if ((gd->f&AEADF_PCTSZ) && tsz != gd->tsz)
+ VALERR("tag length doesn't match precommitted value");
+ if (keysz(tsz, gd->d->ops->c->tagsz) != tsz) VALERR("bad tag length");
+ msz = gd->d->ops->c->bufsz; m = xmalloc(msz); buf_init(&b, m, msz);
+ err = GAEAD_DONE(gd->d, aad == Py_None ? 0 : GAEADAAD_A(aad), &b, t, tsz);
+ assert(err >= 0);
+ if (!err) VALERR("decryption failed");
+ buf_flip(&b); rc = bytestring_pywrapbuf(&b);
+end:
+ xfree(m);
+ return (rc);
+}
+
+static PyMethodDef gaeaddec_pymethods[] = {
+#define METHNAME(name) gaedmeth_##name
+ METH (aad, "DEC.aad() -> AAD")
+ KWMETH(reinit, "DEC.reinit(NONCE, [hsz], [csz], [tsz])")
+ METH (decrypt, "DEC.decrypt(CT) -> MSG")
+ KWMETH(done, "DEC.done(TAG, [aad]) -> MSG | None")
+#undef METHNAME
+ { 0 }
+};
+
+static PyTypeObject gcaead_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "GCAEAD", /* @tp_name@ */
+ sizeof(gcaead_pyobj), /* @tp_basicsize@ */
+ 0, /* @tp_itemsize@ */
+
+ 0, /* @tp_dealloc@ */
+ 0, /* @tp_print@ */
+ 0, /* @tp_getattr@ */
+ 0, /* @tp_setattr@ */
+ 0, /* @tp_compare@ */
+ 0, /* @tp_repr@ */
+ 0, /* @tp_as_number@ */
+ 0, /* @tp_as_sequence@ */
+ 0, /* @tp_as_mapping@ */
+ 0, /* @tp_hash@ */
+ 0, /* @tp_call@ */
+ 0, /* @tp_str@ */
+ 0, /* @tp_getattro@ */
+ 0, /* @tp_setattro@ */
+ 0, /* @tp_as_buffer@ */
+ Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
+ Py_TPFLAGS_BASETYPE,
+
+ /* @tp_doc@ */
+"Authenticated encryption (key) metaclass.",
+
+ 0, /* @tp_traverse@ */
+ 0, /* @tp_clear@ */
+ 0, /* @tp_richcompare@ */
+ 0, /* @tp_weaklistoffset@ */
+ 0, /* @tp_iter@ */
+ 0, /* @tp_iternext@ */
+ 0, /* @tp_methods@ */
+ 0, /* @tp_members@ */
+ gcaead_pygetset, /* @tp_getset@ */
+ 0, /* @tp_base@ */
+ 0, /* @tp_dict@ */
+ 0, /* @tp_descr_get@ */
+ 0, /* @tp_descr_set@ */
+ 0, /* @tp_dictoffset@ */
+ 0, /* @tp_init@ */
+ PyType_GenericAlloc, /* @tp_alloc@ */
+ abstract_pynew, /* @tp_new@ */
+ 0, /* @tp_free@ */
+ 0 /* @tp_is_gc@ */
+};
+
+static PyTypeObject gaeadkey_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "GAEKey", /* @tp_name@ */
+ sizeof(gaeadkey_pyobj), /* @tp_basicsize@ */
+ 0, /* @tp_itemsize@ */
+
+ gaeadkey_pydealloc, /* @tp_dealloc@ */
+ 0, /* @tp_print@ */
+ 0, /* @tp_getattr@ */
+ 0, /* @tp_setattr@ */
+ 0, /* @tp_compare@ */
+ 0, /* @tp_repr@ */
+ 0, /* @tp_as_number@ */
+ 0, /* @tp_as_sequence@ */
+ 0, /* @tp_as_mapping@ */
+ 0, /* @tp_hash@ */
+ 0, /* @tp_call@ */
+ 0, /* @tp_str@ */
+ 0, /* @tp_getattro@ */
+ 0, /* @tp_setattro@ */
+ 0, /* @tp_as_buffer@ */
+ Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
+ Py_TPFLAGS_BASETYPE,
+
+ /* @tp_doc@ */
+"Authenticated encryption key.",
+
+ 0, /* @tp_traverse@ */
+ 0, /* @tp_clear@ */
+ 0, /* @tp_richcompare@ */
+ 0, /* @tp_weaklistoffset@ */
+ 0, /* @tp_iter@ */
+ 0, /* @tp_iternext@ */
+ gaeadkey_pymethods, /* @tp_methods@ */
+ 0, /* @tp_members@ */
+ 0, /* @tp_getset@ */
+ 0, /* @tp_base@ */
+ 0, /* @tp_dict@ */
+ 0, /* @tp_descr_get@ */
+ 0, /* @tp_descr_set@ */
+ 0, /* @tp_dictoffset@ */
+ 0, /* @tp_init@ */
+ PyType_GenericAlloc, /* @tp_alloc@ */
+ abstract_pynew, /* @tp_new@ */
+ 0, /* @tp_free@ */
+ 0 /* @tp_is_gc@ */
+};
+
+static PyTypeObject gcaeadaad_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "GAEAADClass", /* @tp_name@ */
+ sizeof(gcaeadaad_pyobj), /* @tp_basicsize@ */
+ 0, /* @tp_itemsize@ */
+
+ 0, /* @tp_dealloc@ */
+ 0, /* @tp_print@ */
+ 0, /* @tp_getattr@ */
+ 0, /* @tp_setattr@ */
+ 0, /* @tp_compare@ */
+ 0, /* @tp_repr@ */
+ 0, /* @tp_as_number@ */
+ 0, /* @tp_as_sequence@ */
+ 0, /* @tp_as_mapping@ */
+ 0, /* @tp_hash@ */
+ 0, /* @tp_call@ */
+ 0, /* @tp_str@ */
+ 0, /* @tp_getattro@ */
+ 0, /* @tp_setattro@ */
+ 0, /* @tp_as_buffer@ */
+ Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
+ Py_TPFLAGS_BASETYPE,
+
+ /* @tp_doc@ */
+"Authenticated encryption additional-data hash metaclass.",
+
+ 0, /* @tp_traverse@ */
+ 0, /* @tp_clear@ */
+ 0, /* @tp_richcompare@ */
+ 0, /* @tp_weaklistoffset@ */
+ 0, /* @tp_iter@ */
+ 0, /* @tp_iternext@ */
+ 0, /* @tp_methods@ */
+ 0, /* @tp_members@ */
+ 0, /* @tp_getset@ */
+ 0, /* @tp_base@ */
+ 0, /* @tp_dict@ */
+ 0, /* @tp_descr_get@ */
+ 0, /* @tp_descr_set@ */
+ 0, /* @tp_dictoffset@ */
+ 0, /* @tp_init@ */
+ PyType_GenericAlloc, /* @tp_alloc@ */
+ abstract_pynew, /* @tp_new@ */
+ 0, /* @tp_free@ */
+ 0 /* @tp_is_gc@ */
+};
+
+static PyTypeObject gaeadaad_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "GAEAAD", /* @tp_name@ */
+ sizeof(gaeadaad_pyobj), /* @tp_basicsize@ */
+ 0, /* @tp_itemsize@ */
+
+ gaeadaad_pydealloc, /* @tp_dealloc@ */
+ 0, /* @tp_print@ */
+ 0, /* @tp_getattr@ */
+ 0, /* @tp_setattr@ */
+ 0, /* @tp_compare@ */
+ 0, /* @tp_repr@ */
+ 0, /* @tp_as_number@ */
+ 0, /* @tp_as_sequence@ */
+ 0, /* @tp_as_mapping@ */
+ 0, /* @tp_hash@ */
+ 0, /* @tp_call@ */
+ 0, /* @tp_str@ */
+ 0, /* @tp_getattro@ */
+ 0, /* @tp_setattro@ */
+ 0, /* @tp_as_buffer@ */
+ Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
+ Py_TPFLAGS_BASETYPE,
+
+ /* @tp_doc@ */
+"Authenticated encryption AAD hash.",
+
+ 0, /* @tp_traverse@ */
+ 0, /* @tp_clear@ */
+ 0, /* @tp_richcompare@ */
+ 0, /* @tp_weaklistoffset@ */
+ 0, /* @tp_iter@ */
+ 0, /* @tp_iternext@ */
+ gaeadaad_pymethods, /* @tp_methods@ */
+ 0, /* @tp_members@ */
+ gaeadaad_pygetset, /* @tp_getset@ */
+ 0, /* @tp_base@ */
+ 0, /* @tp_dict@ */
+ 0, /* @tp_descr_get@ */
+ 0, /* @tp_descr_set@ */
+ 0, /* @tp_dictoffset@ */
+ 0, /* @tp_init@ */
+ PyType_GenericAlloc, /* @tp_alloc@ */
+ abstract_pynew, /* @tp_new@ */
+ 0, /* @tp_free@ */
+ 0 /* @tp_is_gc@ */
+};
+
+static PyTypeObject gcaeadenc_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "GAEEncClass", /* @tp_name@ */
+ sizeof(gcaeadenc_pyobj), /* @tp_basicsize@ */
+ 0, /* @tp_itemsize@ */
+
+ 0, /* @tp_dealloc@ */
+ 0, /* @tp_print@ */
+ 0, /* @tp_getattr@ */
+ 0, /* @tp_setattr@ */
+ 0, /* @tp_compare@ */
+ 0, /* @tp_repr@ */
+ 0, /* @tp_as_number@ */
+ 0, /* @tp_as_sequence@ */
+ 0, /* @tp_as_mapping@ */
+ 0, /* @tp_hash@ */
+ 0, /* @tp_call@ */
+ 0, /* @tp_str@ */
+ 0, /* @tp_getattro@ */
+ 0, /* @tp_setattro@ */
+ 0, /* @tp_as_buffer@ */
+ Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
+ Py_TPFLAGS_BASETYPE,
+
+ /* @tp_doc@ */
+"Authenticated encryption operation metaclass.",
+
+ 0, /* @tp_traverse@ */
+ 0, /* @tp_clear@ */
+ 0, /* @tp_richcompare@ */
+ 0, /* @tp_weaklistoffset@ */
+ 0, /* @tp_iter@ */
+ 0, /* @tp_iternext@ */
+ 0, /* @tp_methods@ */
+ 0, /* @tp_members@ */
+ 0, /* @tp_getset@ */
+ 0, /* @tp_base@ */
+ 0, /* @tp_dict@ */
+ 0, /* @tp_descr_get@ */
+ 0, /* @tp_descr_set@ */
+ 0, /* @tp_dictoffset@ */
+ 0, /* @tp_init@ */
+ PyType_GenericAlloc, /* @tp_alloc@ */
+ abstract_pynew, /* @tp_new@ */
+ 0, /* @tp_free@ */
+ 0 /* @tp_is_gc@ */
+};
+
+static PyTypeObject gaeadenc_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "GAEEnc", /* @tp_name@ */
+ sizeof(gaeadenc_pyobj), /* @tp_basicsize@ */
+ 0, /* @tp_itemsize@ */
+
+ gaeadenc_pydealloc, /* @tp_dealloc@ */
+ 0, /* @tp_print@ */
+ 0, /* @tp_getattr@ */
+ 0, /* @tp_setattr@ */
+ 0, /* @tp_compare@ */
+ 0, /* @tp_repr@ */
+ 0, /* @tp_as_number@ */
+ 0, /* @tp_as_sequence@ */
+ 0, /* @tp_as_mapping@ */
+ 0, /* @tp_hash@ */
+ 0, /* @tp_call@ */
+ 0, /* @tp_str@ */
+ 0, /* @tp_getattro@ */
+ 0, /* @tp_setattro@ */
+ 0, /* @tp_as_buffer@ */
+ Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
+ Py_TPFLAGS_BASETYPE,
+
+ /* @tp_doc@ */
+"Authenticated encryption operation.",
+
+ 0, /* @tp_traverse@ */
+ 0, /* @tp_clear@ */
+ 0, /* @tp_richcompare@ */
+ 0, /* @tp_weaklistoffset@ */
+ 0, /* @tp_iter@ */
+ 0, /* @tp_iternext@ */
+ gaeadenc_pymethods, /* @tp_methods@ */
+ 0, /* @tp_members@ */
+ gaeadenc_pygetset, /* @tp_getset@ */
+ 0, /* @tp_base@ */
+ 0, /* @tp_dict@ */
+ 0, /* @tp_descr_get@ */
+ 0, /* @tp_descr_set@ */
+ 0, /* @tp_dictoffset@ */
+ 0, /* @tp_init@ */
+ PyType_GenericAlloc, /* @tp_alloc@ */
+ abstract_pynew, /* @tp_new@ */
+ 0, /* @tp_free@ */
+ 0 /* @tp_is_gc@ */
+};
+
+static PyTypeObject gcaeaddec_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "GAEDecClass", /* @tp_name@ */
+ sizeof(gcaeaddec_pyobj), /* @tp_basicsize@ */
+ 0, /* @tp_itemsize@ */
+
+ 0, /* @tp_dealloc@ */
+ 0, /* @tp_print@ */
+ 0, /* @tp_getattr@ */
+ 0, /* @tp_setattr@ */
+ 0, /* @tp_compare@ */
+ 0, /* @tp_repr@ */
+ 0, /* @tp_as_number@ */
+ 0, /* @tp_as_sequence@ */
+ 0, /* @tp_as_mapping@ */
+ 0, /* @tp_hash@ */
+ 0, /* @tp_call@ */
+ 0, /* @tp_str@ */
+ 0, /* @tp_getattro@ */
+ 0, /* @tp_setattro@ */
+ 0, /* @tp_as_buffer@ */
+ Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
+ Py_TPFLAGS_BASETYPE,
+
+ /* @tp_doc@ */
+"Authenticated decryption operation metaclass.",
+
+ 0, /* @tp_traverse@ */
+ 0, /* @tp_clear@ */
+ 0, /* @tp_richcompare@ */
+ 0, /* @tp_weaklistoffset@ */
+ 0, /* @tp_iter@ */
+ 0, /* @tp_iternext@ */
+ 0, /* @tp_methods@ */
+ 0, /* @tp_members@ */
+ 0, /* @tp_getset@ */
+ 0, /* @tp_base@ */
+ 0, /* @tp_dict@ */
+ 0, /* @tp_descr_get@ */
+ 0, /* @tp_descr_set@ */
+ 0, /* @tp_dictoffset@ */
+ 0, /* @tp_init@ */
+ PyType_GenericAlloc, /* @tp_alloc@ */
+ abstract_pynew, /* @tp_new@ */
+ 0, /* @tp_free@ */
+ 0 /* @tp_is_gc@ */
+};
+
+static PyTypeObject gaeaddec_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "GAEDec", /* @tp_name@ */
+ sizeof(gaeaddec_pyobj), /* @tp_basicsize@ */
+ 0, /* @tp_itemsize@ */
+
+ gaeaddec_pydealloc, /* @tp_dealloc@ */
+ 0, /* @tp_print@ */
+ 0, /* @tp_getattr@ */
+ 0, /* @tp_setattr@ */
+ 0, /* @tp_compare@ */
+ 0, /* @tp_repr@ */
+ 0, /* @tp_as_number@ */
+ 0, /* @tp_as_sequence@ */
+ 0, /* @tp_as_mapping@ */
+ 0, /* @tp_hash@ */
+ 0, /* @tp_call@ */
+ 0, /* @tp_str@ */
+ 0, /* @tp_getattro@ */
+ 0, /* @tp_setattro@ */
+ 0, /* @tp_as_buffer@ */
+ Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
+ Py_TPFLAGS_BASETYPE,
+
+ /* @tp_doc@ */
+"Authenticated decryption operation.",
+
+ 0, /* @tp_traverse@ */
+ 0, /* @tp_clear@ */
+ 0, /* @tp_richcompare@ */
+ 0, /* @tp_weaklistoffset@ */
+ 0, /* @tp_iter@ */
+ 0, /* @tp_iternext@ */
+ gaeaddec_pymethods, /* @tp_methods@ */
+ 0, /* @tp_members@ */
+ gaeaddec_pygetset, /* @tp_getset@ */
+ 0, /* @tp_base@ */
+ 0, /* @tp_dict@ */
+ 0, /* @tp_descr_get@ */
+ 0, /* @tp_descr_set@ */
+ 0, /* @tp_dictoffset@ */
+ 0, /* @tp_init@ */
+ PyType_GenericAlloc, /* @tp_alloc@ */
+ abstract_pynew, /* @tp_new@ */
+ 0, /* @tp_free@ */
+ 0 /* @tp_is_gc@ */
+};
+
+/*----- Hash functions ----------------------------------------------------*/
+
+PyTypeObject *gchash_pytype, *ghash_pytype;
+
+CONVFUNC(gchash, gchash *, GCHASH_CH)
+CONVFUNC(ghash, ghash *, GHASH_H)
+
+static PyObject *ghash_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
+{
+ static const char *const kwlist[] = { 0 };
+ if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", KWLIST))
+ goto end;
+ return (ghash_pywrap((PyObject *)ty, GH_INIT(GCHASH_CH(ty))));
+end:
+ return (0);
+}
+
+PyObject *gchash_pywrap(gchash *ch)
+{
+ gchash_pyobj *g = newtype(gchash_pytype, 0, ch->name);
+ g->ch = ch;
+ g->ty.ht_type.tp_basicsize = sizeof(ghash_pyobj);
+ g->ty.ht_type.tp_base = ghash_pytype;
+ Py_INCREF(ghash_pytype);
+ g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT |
+ Py_TPFLAGS_BASETYPE |
+ Py_TPFLAGS_HEAPTYPE);
+ g->ty.ht_type.tp_alloc = PyType_GenericAlloc;
+ g->ty.ht_type.tp_free = 0;
+ g->ty.ht_type.tp_new = ghash_pynew;
+ typeready(&g->ty.ht_type);
+ return ((PyObject *)g);
+}
+
+PyObject *ghash_pywrap(PyObject *cobj, ghash *h)
+{
+ ghash_pyobj *g;
+ if (!cobj) cobj = gchash_pywrap((/*unconst*/ gchash *)GH_CLASS(h));
+ else Py_INCREF(cobj);
+ g = PyObject_NEW(ghash_pyobj, (PyTypeObject *)cobj);
+ g->h = h;
+ return ((PyObject *)g);
+}
+
+static void ghash_pydealloc(PyObject *me)
+{
+ GH_DESTROY(GHASH_H(me));
+ Py_DECREF(me->ob_type);
+ FREEOBJ(me);
+}
+
+static PyObject *gchget_name(PyObject *me, void *hunoz)
+ { return (PyString_FromString(GCHASH_CH(me)->name)); }
+
+static PyObject *gchget_hashsz(PyObject *me, void *hunoz)
+ { return (PyInt_FromLong(GCHASH_CH(me)->hashsz)); }
+
+static PyObject *gchget_bufsz(PyObject *me, void *hunoz)
+ { return (PyInt_FromLong(GCHASH_CH(me)->bufsz)); }
+
+static PyObject *ghmeth_copy(PyObject *me, PyObject *arg)
+{
+ if (!PyArg_ParseTuple(arg, ":copy")) return (0);
+ return (ghash_pywrap((PyObject *)me->ob_type, GH_COPY(GHASH_H(me))));
+}
+
+static PyObject *ghmeth_hash(PyObject *me, PyObject *arg)
+{
+ char *p;
+ Py_ssize_t sz;
+ if (!PyArg_ParseTuple(arg, "s#:hash", &p, &sz)) return (0);
+ GH_HASH(GHASH_H(me), p, sz);
+ RETURN_ME;
+}
+
+#define GHMETH_HASHU_(n, W, w) \
+ static PyObject *ghmeth_hashu##w(PyObject *me, PyObject *arg) \
+ { \
+ uint##n x; \
+ if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) return (0); \
+ GH_HASHU##W(GHASH_H(me), x); \
+ RETURN_ME; \
+ }
+DOUINTCONV(GHMETH_HASHU_)
+
+#define GHMETH_HASHBUF_(n, W, w) \
+ static PyObject *ghmeth_hashbuf##w(PyObject *me, PyObject *arg) \
+ { \
+ char *p; \
+ Py_ssize_t sz; \
+ if (!PyArg_ParseTuple(arg, "s#:hashbuf" #w, &p, &sz)) goto end; \
+ if (sz > MASK##n) TYERR("string too long"); \
+ GH_HASHBUF##W(GHASH_H(me), p, sz); \
+ RETURN_ME; \
+ end: \
+ return (0); \
+ }
+DOUINTCONV(GHMETH_HASHBUF_)
+
+static PyObject *ghmeth_hashstrz(PyObject *me, PyObject *arg)
+{
+ char *p;
+ if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0);
+ GH_HASHSTRZ(GHASH_H(me), p);
+ RETURN_ME;
+}
+
+static PyObject *ghmeth_done(PyObject *me, PyObject *arg)
+{
+ ghash *g;
+ PyObject *rc;
+ if (!PyArg_ParseTuple(arg, ":done")) return (0);
+ g = GH_COPY(GHASH_H(me));
+ rc = bytestring_pywrap(0, g->ops->c->hashsz);
+ GH_DONE(g, PyString_AS_STRING(rc));
+ GH_DESTROY(g);
+ return (rc);
+}
+
+static PyGetSetDef gchash_pygetset[] = {
+#define GETSETNAME(op, name) gch##op##_##name
+ GET (bufsz, "CH.bufsz -> hash buffer size, or zero")
+ GET (hashsz, "CH.hashsz -> hash output size")
+ GET (name, "CH.name -> name of this kind of hash")
+#undef GETSETNAME
+ { 0 }
+};
+
+static PyMethodDef ghash_pymethods[] = {
+#define METHNAME(name) ghmeth_##name
+ METH (copy, "H.copy() -> HH")
+ METH (hash, "H.hash(M)")
+#define METHU_(n, W, w) METH(hashu##w, "H.hashu" #w "(WORD)")
+ DOUINTCONV(METHU_)
+#undef METHU_
+#define METHBUF_(n, W, w) METH(hashbuf##w, "H.hashbuf" #w "(BYTES)")
+ DOUINTCONV(METHBUF_)
+#undef METHBUF_
+ METH (hashstrz, "H.hashstrz(STRING)")
+ METH (done, "H.done() -> HASH")
+#undef METHNAME
+ { 0 }
+};
+
+static PyTypeObject gchash_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "GCHash", /* @tp_name@ */
+ sizeof(gchash_pyobj), /* @tp_basicsize@ */
+ 0, /* @tp_itemsize@ */
+
+ 0, /* @tp_dealloc@ */
+ 0, /* @tp_print@ */
+ 0, /* @tp_getattr@ */
+ 0, /* @tp_setattr@ */
+ 0, /* @tp_compare@ */
+ 0, /* @tp_repr@ */
+ 0, /* @tp_as_number@ */
+ 0, /* @tp_as_sequence@ */
+ 0, /* @tp_as_mapping@ */
+ 0, /* @tp_hash@ */
+ 0, /* @tp_call@ */
+ 0, /* @tp_str@ */
+ 0, /* @tp_getattro@ */
+ 0, /* @tp_setattro@ */
+ 0, /* @tp_as_buffer@ */
+ Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
+ Py_TPFLAGS_BASETYPE,
+
+ /* @tp_doc@ */
+"Hash function metaclass.",
+
+ 0, /* @tp_traverse@ */
+ 0, /* @tp_clear@ */
+ 0, /* @tp_richcompare@ */
+ 0, /* @tp_weaklistoffset@ */
+ 0, /* @tp_iter@ */
+ 0, /* @tp_iternext@ */
+ 0, /* @tp_methods@ */
+ 0, /* @tp_members@ */
+ gchash_pygetset, /* @tp_getset@ */
+ 0, /* @tp_base@ */
+ 0, /* @tp_dict@ */
+ 0, /* @tp_descr_get@ */
+ 0, /* @tp_descr_set@ */
+ 0, /* @tp_dictoffset@ */
+ 0, /* @tp_init@ */
+ PyType_GenericAlloc, /* @tp_alloc@ */
+ abstract_pynew, /* @tp_new@ */
+ 0, /* @tp_free@ */
+ 0 /* @tp_is_gc@ */
+};
+
+static PyTypeObject ghash_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "GHash", /* @tp_name@ */
+ sizeof(ghash_pyobj), /* @tp_basicsize@ */
+ 0, /* @tp_itemsize@ */
+
+ ghash_pydealloc, /* @tp_dealloc@ */
+ 0, /* @tp_print@ */
+ 0, /* @tp_getattr@ */
+ 0, /* @tp_setattr@ */
+ 0, /* @tp_compare@ */
+ 0, /* @tp_repr@ */
+ 0, /* @tp_as_number@ */
+ 0, /* @tp_as_sequence@ */
+ 0, /* @tp_as_mapping@ */
+ 0, /* @tp_hash@ */
+ 0, /* @tp_call@ */
+ 0, /* @tp_str@ */
+ 0, /* @tp_getattro@ */
+ 0, /* @tp_setattro@ */
+ 0, /* @tp_as_buffer@ */
+ Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
+ Py_TPFLAGS_BASETYPE,
+
+ /* @tp_doc@ */
+"Hash function, abstract base class.",
+
+ 0, /* @tp_traverse@ */
+ 0, /* @tp_clear@ */
+ 0, /* @tp_richcompare@ */
+ 0, /* @tp_weaklistoffset@ */
+ 0, /* @tp_iter@ */
+ 0, /* @tp_iternext@ */
+ ghash_pymethods, /* @tp_methods@ */
+ 0, /* @tp_members@ */
+ 0, /* @tp_getset@ */
+ 0, /* @tp_base@ */
+ 0, /* @tp_dict@ */
+ 0, /* @tp_descr_get@ */
+ 0, /* @tp_descr_set@ */
+ 0, /* @tp_dictoffset@ */
+ 0, /* @tp_init@ */
+ PyType_GenericAlloc, /* @tp_alloc@ */
+ abstract_pynew, /* @tp_new@ */
+ 0, /* @tp_free@ */
+ 0 /* @tp_is_gc@ */
+};
+
+/*----- Message authentication --------------------------------------------*/
+
+PyTypeObject *gcmac_pytype, *gmac_pytype, *gmhash_pytype;
+
+CONVFUNC(gcmac, gcmac *, GCMAC_CM)
+CONVFUNC(gmac, gmac *, GMAC_M)
+CONVFUNC(gmhash, ghash *, GHASH_H)
+
+static PyObject *gmac_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
+{
+ static const char *const kwlist[] = { "k", 0 };
+ char *k;
+ Py_ssize_t sz;
+
+ if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", KWLIST, &k, &sz))
+ goto end;
+ if (keysz(sz, GCMAC_CM(ty)->keysz) != sz) VALERR("bad key length");
+ return (gmac_pywrap((PyObject *)ty,
+ GM_KEY(GCMAC_CM(ty), k, sz)));
+end:
+ return (0);
+}
+
+static PyObject *gmhash_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
+{
+ static const char *const kwlist[] = { 0 };
+ ghash_pyobj *g;
+
+ if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", KWLIST)) return (0);
+ g = PyObject_NEW(ghash_pyobj, ty);
+ g->h = GM_INIT(GMAC_M(ty));
+ Py_INCREF(ty);
+ return ((PyObject *)g);
+}
+
+PyObject *gcmac_pywrap(gcmac *cm)
+{
+ gcmac_pyobj *g = newtype(gcmac_pytype, 0, cm->name);
+ g->cm = cm;
+ g->ty.ht_type.tp_basicsize = sizeof(gmac_pyobj);
+ g->ty.ht_type.tp_base = gmac_pytype;
+ Py_INCREF(gmac_pytype);
+ g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT |
+ Py_TPFLAGS_BASETYPE |
+ Py_TPFLAGS_HEAPTYPE);
+ g->ty.ht_type.tp_alloc = PyType_GenericAlloc;
+ g->ty.ht_type.tp_free = 0;
+ g->ty.ht_type.tp_new = gmac_pynew;
+ typeready(&g->ty.ht_type);
+ return ((PyObject *)g);
+}
+
+PyObject *gmac_pywrap(PyObject *cobj, gmac *m)
+{
+ gmac_pyobj *g;
+ if (!cobj) cobj = gcmac_pywrap((/*unconst*/ gcmac *)GM_CLASS(m));
+ else Py_INCREF(cobj);
+ g = newtype((PyTypeObject *)cobj, 0, 0);
+ g->ty.ht_type.tp_basicsize = sizeof(ghash_pyobj);
+ g->ty.ht_name = PyString_FromFormat("%s(keyed)", m->ops->c->name);
+ g->ty.ht_type.tp_name = PyString_AS_STRING(g->ty.ht_name);
+ g->ty.ht_type.tp_base = gmhash_pytype;
+ Py_INCREF(gmac_pytype);
+ g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT |
+ Py_TPFLAGS_BASETYPE |
+ Py_TPFLAGS_HEAPTYPE);
+ g->ty.ht_type.tp_alloc = PyType_GenericAlloc;
+ g->ty.ht_type.tp_free = 0;
+ g->ty.ht_type.tp_new = gmhash_pynew;
+ typeready(&g->ty.ht_type);
+ g->m = m;
+ return ((PyObject *)g);
+}
+
+static void gmac_pydealloc(PyObject *me)
+{
+ GM_DESTROY(GMAC_M(me));
+ Py_DECREF(me->ob_type);
+ PyType_Type.tp_dealloc(me);
+}
+
+static PyObject *gcmget_name(PyObject *me, void *hunoz)
+ { return (PyString_FromString(GCMAC_CM(me)->name)); }
+
+static PyObject *gcmget_keysz(PyObject *me, void *hunoz)
+ { return (keysz_pywrap(GCMAC_CM(me)->keysz)); }
+
+static PyObject *gcmget_tagsz(PyObject *me, void *hunoz)
+ { return (PyInt_FromLong(GCMAC_CM(me)->hashsz)); }
+
+static PyGetSetDef gcmac_pygetset[] = {
+#define GETSETNAME(op, name) gcm##op##_##name
+ GET (keysz, "CM.keysz -> acceptable key sizes")
+ GET (tagsz, "CM.tagsz -> MAC output size")
+ GET (name, "CM.name -> name of this kind of MAC")
+#undef GETSETNAME
+ { 0 }
+};
+
+static PyTypeObject gcmac_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "GCMAC", /* @tp_name@ */
+ sizeof(gchash_pyobj), /* @tp_basicsize@ */
+ 0, /* @tp_itemsize@ */
+
+ 0, /* @tp_dealloc@ */
+ 0, /* @tp_print@ */
+ 0, /* @tp_getattr@ */
+ 0, /* @tp_setattr@ */
+ 0, /* @tp_compare@ */
+ 0, /* @tp_repr@ */
+ 0, /* @tp_as_number@ */
+ 0, /* @tp_as_sequence@ */
+ 0, /* @tp_as_mapping@ */
+ 0, /* @tp_hash@ */
+ 0, /* @tp_call@ */
+ 0, /* @tp_str@ */
+ 0, /* @tp_getattro@ */
+ 0, /* @tp_setattro@ */
+ 0, /* @tp_as_buffer@ */
+ Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
+ Py_TPFLAGS_BASETYPE,
+
+ /* @tp_doc@ */
+"Message authentication code metametaclass.",
+
+ 0, /* @tp_traverse@ */
+ 0, /* @tp_clear@ */
+ 0, /* @tp_richcompare@ */
+ 0, /* @tp_weaklistoffset@ */
+ 0, /* @tp_iter@ */
+ 0, /* @tp_iternext@ */
+ 0, /* @tp_methods@ */
+ 0, /* @tp_members@ */
+ gcmac_pygetset, /* @tp_getset@ */
+ 0, /* @tp_base@ */
+ 0, /* @tp_dict@ */
+ 0, /* @tp_descr_get@ */
+ 0, /* @tp_descr_set@ */
+ 0, /* @tp_dictoffset@ */
+ 0, /* @tp_init@ */
+ PyType_GenericAlloc, /* @tp_alloc@ */
+ abstract_pynew, /* @tp_new@ */
+ 0, /* @tp_free@ */
+ 0 /* @tp_is_gc@ */
+};
+
+static PyTypeObject gmac_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "GMAC", /* @tp_name@ */
+ sizeof(gmac_pyobj), /* @tp_basicsize@ */
+ 0, /* @tp_itemsize@ */
+
+ gmac_pydealloc, /* @tp_dealloc@ */
+ 0, /* @tp_print@ */
+ 0, /* @tp_getattr@ */
+ 0, /* @tp_setattr@ */
+ 0, /* @tp_compare@ */
+ 0, /* @tp_repr@ */
+ 0, /* @tp_as_number@ */
+ 0, /* @tp_as_sequence@ */
+ 0, /* @tp_as_mapping@ */
+ 0, /* @tp_hash@ */
+ 0, /* @tp_call@ */
+ 0, /* @tp_str@ */
+ 0, /* @tp_getattro@ */
+ 0, /* @tp_setattro@ */
+ 0, /* @tp_as_buffer@ */
+ Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
+ Py_TPFLAGS_BASETYPE,
+
+ /* @tp_doc@ */
+"Message authentication code metaclass, abstract base class.",
+
+ 0, /* @tp_traverse@ */
+ 0, /* @tp_clear@ */
+ 0, /* @tp_richcompare@ */
+ 0, /* @tp_weaklistoffset@ */
+ 0, /* @tp_iter@ */
+ 0, /* @tp_iternext@ */
+ 0, /* @tp_methods@ */
+ 0, /* @tp_members@ */
+ 0, /* @tp_getset@ */
+ 0, /* @tp_base@ */
+ 0, /* @tp_dict@ */
+ 0, /* @tp_descr_get@ */
+ 0, /* @tp_descr_set@ */
+ 0, /* @tp_dictoffset@ */
+ 0, /* @tp_init@ */
+ PyType_GenericAlloc, /* @tp_alloc@ */
+ abstract_pynew, /* @tp_new@ */
+ 0, /* @tp_free@ */
+ 0 /* @tp_is_gc@ */
+};
+
+static PyTypeObject gmhash_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "GMACHash", /* @tp_name@ */
+ sizeof(ghash_pyobj), /* @tp_basicsize@ */
+ 0, /* @tp_itemsize@ */
+
+ ghash_pydealloc, /* @tp_dealloc@ */
+ 0, /* @tp_print@ */
+ 0, /* @tp_getattr@ */
+ 0, /* @tp_setattr@ */
+ 0, /* @tp_compare@ */
+ 0, /* @tp_repr@ */
+ 0, /* @tp_as_number@ */
+ 0, /* @tp_as_sequence@ */
+ 0, /* @tp_as_mapping@ */
+ 0, /* @tp_hash@ */
+ 0, /* @tp_call@ */
+ 0, /* @tp_str@ */
+ 0, /* @tp_getattro@ */
+ 0, /* @tp_setattro@ */
+ 0, /* @tp_as_buffer@ */
+ Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
+ Py_TPFLAGS_BASETYPE,
+
+ /* @tp_doc@ */
+"Message authentication code, abstract base class.",
+
+ 0, /* @tp_traverse@ */
+ 0, /* @tp_clear@ */
+ 0, /* @tp_richcompare@ */
+ 0, /* @tp_weaklistoffset@ */
+ 0, /* @tp_iter@ */
+ 0, /* @tp_iternext@ */
+ 0, /* @tp_methods@ */
+ 0, /* @tp_members@ */
+ 0, /* @tp_getset@ */
+ 0, /* @tp_base@ */
+ 0, /* @tp_dict@ */
+ 0, /* @tp_descr_get@ */
+ 0, /* @tp_descr_set@ */
+ 0, /* @tp_dictoffset@ */
+ 0, /* @tp_init@ */
+ PyType_GenericAlloc, /* @tp_alloc@ */
+ abstract_pynew, /* @tp_new@ */
+ 0, /* @tp_free@ */
+ 0 /* @tp_is_gc@ */
+};
+
+/*----- Special snowflake for Poly1305 ------------------------------------*/
+
+PyTypeObject *poly1305cls_pytype, *poly1305key_pytype, *poly1305hash_pytype;
+
+typedef struct poly1305key_pyobj {
+ PyHeapTypeObject ty;
+ poly1305_key k;
+} poly1305key_pyobj;
+
+typedef struct poly1305hash_pyobj {
+ PyObject_HEAD
+ unsigned f;
+#define f_mask 1u
+ poly1305_ctx ctx;
+} poly1305hash_pyobj;
+
+#define P1305_F(o) (((poly1305hash_pyobj *)(o))->f)
+#define P1305_CTX(o) (&((poly1305hash_pyobj *)(o))->ctx)
+CONVFUNC(poly1305hash, poly1305_ctx *, P1305_CTX)
+
+static PyObject *poly1305hash_pynew(PyTypeObject *ty,
+ PyObject *arg, PyObject *kw)
+{
+ static const char *const kwlist[] = { "mask", 0 };
+ poly1305key_pyobj *pk = (poly1305key_pyobj *)ty;
+ poly1305hash_pyobj *ph;
+ char *m = 0;
+ Py_ssize_t sz;
+
+ if (!PyArg_ParseTupleAndKeywords(arg, kw, "|s#:new", KWLIST, &m, &sz))
+ return (0);
+ if (m && sz != POLY1305_MASKSZ) VALERR("bad mask length");
+ ph = PyObject_NEW(poly1305hash_pyobj, ty);
+ ph->f = 0;
+ if (m) ph->f |= f_mask;
+ poly1305_macinit(&ph->ctx, &pk->k, m);
+ Py_INCREF(ty);
+ return ((PyObject *)ph);
+end:
+ return (0);
+}
+
+static PyObject *poly1305key_pynew(PyTypeObject *ty,
+ PyObject *arg, PyObject *kw)
+{
+ static const char *const kwlist[] = { "k", 0 };
+ poly1305key_pyobj *pk;
+ char *k;
+ Py_ssize_t sz;
+
+ if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", KWLIST, &k, &sz))
+ goto end;
+ if (keysz(sz, poly1305_keysz) != sz) VALERR("bad key length");
+
+ pk = newtype(ty, 0, 0);
+ pk->ty.ht_name = PyString_FromString("poly1305(keyed)");
+ pk->ty.ht_type.tp_basicsize = sizeof(poly1305hash_pyobj);
+ pk->ty.ht_type.tp_name = PyString_AS_STRING(pk->ty.ht_name);
+ pk->ty.ht_type.tp_base = poly1305hash_pytype;
+ Py_INCREF(poly1305key_pytype);
+ pk->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT |
+ Py_TPFLAGS_BASETYPE |
+ Py_TPFLAGS_HEAPTYPE);
+ pk->ty.ht_type.tp_alloc = PyType_GenericAlloc;
+ pk->ty.ht_type.tp_free = 0;
+ pk->ty.ht_type.tp_new = poly1305hash_pynew;
+ typeready(&pk->ty.ht_type);
+
+ poly1305_keyinit(&pk->k, k, sz);
+ return ((PyObject *)pk);
+
+end:
+ return (0);
+}
+
+static PyObject *poly1305clsget_name(PyObject *me, void *hunoz)
+ { return (PyString_FromString("poly1305")); }
+
+static PyObject *poly1305clsget_keysz(PyObject *me, void *hunoz)
+ { return (keysz_pywrap(poly1305_keysz)); }
+
+static PyObject *poly1305clsget_masksz(PyObject *me, void *hunoz)
+ { return (PyInt_FromLong(POLY1305_MASKSZ)); }
+
+static PyObject *poly1305clsget_tagsz(PyObject *me, void *hunoz)
+ { return (PyInt_FromLong(POLY1305_TAGSZ)); }
+
+static PyObject *polymeth_copy(PyObject *me, PyObject *arg)
+{
+ poly1305hash_pyobj *ph;
+ if (!PyArg_ParseTuple(arg, ":copy")) return (0);
+ ph = PyObject_NEW(poly1305hash_pyobj, me->ob_type);
+ poly1305_copy(&ph->ctx, P1305_CTX(me));
+ Py_INCREF(me->ob_type);
+ return ((PyObject *)ph);
+}
+
+static PyObject *polymeth_hash(PyObject *me, PyObject *arg)
+{
+ char *p;
+ Py_ssize_t sz;
+ if (!PyArg_ParseTuple(arg, "s#:hash", &p, &sz)) return (0);
+ poly1305_hash(P1305_CTX(me), p, sz);
+ RETURN_ME;
+}
+
+#define POLYMETH_HASHU_(n, W, w) \
+ static PyObject *polymeth_hashu##w(PyObject *me, PyObject *arg) \
+ { \
+ uint##n x; \
+ octet b[SZ_##W]; \
+ if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) return (0); \
+ STORE##W(b, x); poly1305_hash(P1305_CTX(me), b, sizeof(b)); \
+ RETURN_ME; \
+ }
+DOUINTCONV(POLYMETH_HASHU_)
+
+#define POLYMETH_HASHBUF_(n, W, w) \
+ static PyObject *polymeth_hashbuf##w(PyObject *me, PyObject *arg) \
+ { \
+ char *p; \
+ Py_ssize_t sz; \
+ octet b[SZ_##W]; \
+ if (!PyArg_ParseTuple(arg, "s#:hashbuf" #w, &p, &sz)) goto end; \
+ if (sz > MASK##n) TYERR("string too long"); \
+ STORE##W(b, sz); poly1305_hash(P1305_CTX(me), b, sizeof(b)); \
+ poly1305_hash(P1305_CTX(me), p, sz); \
+ RETURN_ME; \
+ end: \
+ return (0); \
+ }
+DOUINTCONV(POLYMETH_HASHBUF_)
+
+static PyObject *polymeth_hashstrz(PyObject *me, PyObject *arg)
+{
+ char *p;
+ if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0);
+ poly1305_hash(P1305_CTX(me), p, strlen(p) + 1);
+ RETURN_ME;
+}
+
+static PyObject *polymeth_flush(PyObject *me, PyObject *arg)
+{
+ if (!PyArg_ParseTuple(arg, ":flush")) return (0);
+ poly1305_flush(P1305_CTX(me));
+ RETURN_ME;
+}
+
+static PyObject *polymeth_flushzero(PyObject *me, PyObject *arg)
+{
+ if (!PyArg_ParseTuple(arg, ":flushzero")) return (0);
+ poly1305_flushzero(P1305_CTX(me));
+ RETURN_ME;
+}
+
+static PyObject *polymeth_concat(PyObject *me, PyObject *arg)
+{
+ PyObject *pre, *suff;
+ if (!PyArg_ParseTuple(arg, "OO:concat", &pre, &suff)) return (0);
+ if (!PyObject_TypeCheck(pre, poly1305hash_pytype) ||
+ !PyObject_TypeCheck(suff, poly1305hash_pytype))
+ TYERR("wanted a poly1305hash");
+ if (me->ob_type != pre->ob_type || me->ob_type != suff->ob_type)
+ TYERR("key mismatch");
+ if (P1305_CTX(pre)->nbuf) VALERR("prefix is not block-aligned");
+ poly1305_concat(P1305_CTX(me), P1305_CTX(pre), P1305_CTX(suff));
+ RETURN_ME;
+end:
+ return (0);
+}
+
+static PyObject *polymeth_done(PyObject *me, PyObject *arg)
+{
+ PyObject *rc;
+ if (!PyArg_ParseTuple(arg, ":done")) return (0);
+ if (!(P1305_F(me) & f_mask)) VALERR("no mask");
+ rc = bytestring_pywrap(0, POLY1305_TAGSZ);
+ poly1305_done(P1305_CTX(me), PyString_AS_STRING(rc));
+ return (rc);
+end:
+ return (0);
+}
+
+static PyGetSetDef poly1305cls_pygetset[] = {
+#define GETSETNAME(op, name) poly1305cls##op##_##name
+ GET (keysz, "PC.keysz -> acceptable key sizes")
+ GET (masksz, "PC.masksz -> mask size")
+ GET (tagsz, "PC.tagsz -> MAC output size")
+ GET (name, "PC.name -> name of this kind of MAC")
+#undef GETSETNAME
+ { 0 }
+};
+
+static PyMethodDef poly1305hash_pymethods[] = {
+#define METHNAME(name) polymeth_##name
+ METH (copy, "P.copy() -> PP")
+ METH (hash, "P.hash(M)")
+#define METHU_(n, W, w) METH(hashu##w, "P.hashu" #w "(WORD)")
+ DOUINTCONV(METHU_)
+#undef METHU_
+#define METHBUF_(n, W, w) METH(hashbuf##w, "P.hashbuf" #w "(BYTES)")
+ DOUINTCONV(METHBUF_)
+#undef METHBUF_
+ METH (hashstrz, "P.hashstrz(STRING)")
+ METH (flush, "P.flush()")
+ METH (flushzero, "P.flushzero()")
+ METH (concat, "P.concat(PREFIX, SUFFIX)")
+ METH (done, "P.done() -> TAG")
+#undef METHNAME
+ { 0 }
+};
+
+static PyTypeObject poly1305cls_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "Poly1305Class", /* @tp_name@ */
+ sizeof(PyHeapTypeObject), /* @tp_basicsize@ */
+ 0, /* @tp_itemsize@ */
+
+ 0, /* @tp_dealloc@ */
+ 0, /* @tp_print@ */
+ 0, /* @tp_getattr@ */
+ 0, /* @tp_setattr@ */
+ 0, /* @tp_compare@ */
+ 0, /* @tp_repr@ */
+ 0, /* @tp_as_number@ */
+ 0, /* @tp_as_sequence@ */
+ 0, /* @tp_as_mapping@ */
+ 0, /* @tp_hash@ */
+ 0, /* @tp_call@ */
+ 0, /* @tp_str@ */
+ 0, /* @tp_getattro@ */
+ 0, /* @tp_setattro@ */
+ 0, /* @tp_as_buffer@ */
+ Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
+ Py_TPFLAGS_BASETYPE,
+
+ /* @tp_doc@ */
+"Poly1305 metametaclass. Best not to ask.",
+
+ 0, /* @tp_traverse@ */
+ 0, /* @tp_clear@ */
+ 0, /* @tp_richcompare@ */
+ 0, /* @tp_weaklistoffset@ */
+ 0, /* @tp_iter@ */
+ 0, /* @tp_iternext@ */
+ 0, /* @tp_methods@ */
+ 0, /* @tp_members@ */
+ poly1305cls_pygetset, /* @tp_getset@ */
+ 0, /* @tp_base@ */
+ 0, /* @tp_dict@ */
+ 0, /* @tp_descr_get@ */
+ 0, /* @tp_descr_set@ */
+ 0, /* @tp_dictoffset@ */
+ 0, /* @tp_init@ */
+ PyType_GenericAlloc, /* @tp_alloc@ */
+ abstract_pynew, /* @tp_new@ */
+ 0, /* @tp_free@ */
+ 0 /* @tp_is_gc@ */
+};
+
+static PyTypeObject poly1305key_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "poly1305", /* @tp_name@ */
+ sizeof(poly1305key_pyobj), /* @tp_basicsize@ */
+ 0, /* @tp_itemsize@ */
+
+ 0, /* @tp_dealloc@ */
+ 0, /* @tp_print@ */
+ 0, /* @tp_getattr@ */
+ 0, /* @tp_setattr@ */
+ 0, /* @tp_compare@ */
+ 0, /* @tp_repr@ */
+ 0, /* @tp_as_number@ */
+ 0, /* @tp_as_sequence@ */
+ 0, /* @tp_as_mapping@ */
+ 0, /* @tp_hash@ */
+ 0, /* @tp_call@ */
+ 0, /* @tp_str@ */
+ 0, /* @tp_getattro@ */
+ 0, /* @tp_setattro@ */
+ 0, /* @tp_as_buffer@ */
+ Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
+ Py_TPFLAGS_BASETYPE,
+
+ /* @tp_doc@ */
+"poly1305(K): Poly1305 key.",
+
+ 0, /* @tp_traverse@ */
+ 0, /* @tp_clear@ */
+ 0, /* @tp_richcompare@ */
+ 0, /* @tp_weaklistoffset@ */
+ 0, /* @tp_iter@ */
+ 0, /* @tp_iternext@ */
+ 0, /* @tp_methods@ */
+ 0, /* @tp_members@ */
+ 0, /* @tp_getset@ */
+ 0, /* @tp_base@ */
+ 0, /* @tp_dict@ */
+ 0, /* @tp_descr_get@ */
+ 0, /* @tp_descr_set@ */
+ 0, /* @tp_dictoffset@ */
+ 0, /* @tp_init@ */
+ PyType_GenericAlloc, /* @tp_alloc@ */
+ poly1305key_pynew, /* @tp_new@ */
+ 0, /* @tp_free@ */
+ 0 /* @tp_is_gc@ */
+};
+
+static PyTypeObject poly1305hash_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "Poly1305Hash", /* @tp_name@ */
+ sizeof(poly1305hash_pyobj), /* @tp_basicsize@ */
+ 0, /* @tp_itemsize@ */
+
+ 0, /* @tp_dealloc@ */
+ 0, /* @tp_print@ */
+ 0, /* @tp_getattr@ */
+ 0, /* @tp_setattr@ */
+ 0, /* @tp_compare@ */
+ 0, /* @tp_repr@ */
+ 0, /* @tp_as_number@ */
+ 0, /* @tp_as_sequence@ */
+ 0, /* @tp_as_mapping@ */
+ 0, /* @tp_hash@ */
+ 0, /* @tp_call@ */
+ 0, /* @tp_str@ */
+ 0, /* @tp_getattro@ */
+ 0, /* @tp_setattro@ */
+ 0, /* @tp_as_buffer@ */
+ Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
+ Py_TPFLAGS_BASETYPE,
+
+ /* @tp_doc@ */
+"Poly1305 MAC context base class.",
+
+ 0, /* @tp_traverse@ */
+ 0, /* @tp_clear@ */
+ 0, /* @tp_richcompare@ */
+ 0, /* @tp_weaklistoffset@ */
+ 0, /* @tp_iter@ */
+ 0, /* @tp_iternext@ */
+ poly1305hash_pymethods, /* @tp_methods@ */
+ 0, /* @tp_members@ */
+ 0, /* @tp_getset@ */
+ 0, /* @tp_base@ */
+ 0, /* @tp_dict@ */
+ 0, /* @tp_descr_get@ */
+ 0, /* @tp_descr_set@ */
+ 0, /* @tp_dictoffset@ */
+ 0, /* @tp_init@ */
+ PyType_GenericAlloc, /* @tp_alloc@ */
+ abstract_pynew, /* @tp_new@ */
+ 0, /* @tp_free@ */
+ 0 /* @tp_is_gc@ */
+};
+
+/*----- Special snowflake for HSalsa and HChaCha --------------------------*/
+
+#define DEF_HDANCE(DANCE, HDANCE, dance, hdance) \
+ static PyObject *meth_##hdance##_prf(PyObject *me, PyObject *arg) \
+ { \
+ dance##_ctx dance; \
+ char *k, *n; \
+ Py_ssize_t ksz, nsz; \
+ PyObject *rc; \
+ if (!PyArg_ParseTuple(arg, "s#s#:" #hdance "_prf", \
+ &k, &ksz, &n, &nsz)) \
+ goto end; \
+ if (ksz != keysz(ksz, dance##_keysz)) VALERR("bad key length"); \
+ if (nsz != HDANCE##_INSZ) VALERR("bad input length"); \
+ rc = bytestring_pywrap(0, HSALSA20_OUTSZ); \
+ dance##_init(&dance, k, ksz, 0); \
+ hdance##_prf(&dance, n, PyString_AS_STRING(rc)); \
+ return (rc); \
+ end: \
+ return (0); \
+ }
+
+DEF_HDANCE(SALSA20, HSALSA20, salsa20, hsalsa20)
+DEF_HDANCE(SALSA20, HSALSA20, salsa20, hsalsa2012)
+DEF_HDANCE(SALSA20, HSALSA20, salsa20, hsalsa208)
+
+DEF_HDANCE(CHACHA, HCHACHA, chacha, hchacha20)
+DEF_HDANCE(CHACHA, HCHACHA, chacha, hchacha12)
+DEF_HDANCE(CHACHA, HCHACHA, chacha, hchacha8)
+
+/*----- Keccak-p[1600, n] -------------------------------------------------*/
+
+static PyTypeObject *kxvik_pytype;
+
+typedef struct kxvik_pyobj {
+ PyObject_HEAD
+ keccak1600_state s;
+ unsigned n;
+} kxvik_pyobj;
+
+static PyObject *kxvik_pynew(PyTypeObject *ty,
+ PyObject *arg, PyObject *kw)
+{
+ unsigned n = 24;
+ kxvik_pyobj *rc = 0;
+ static const char *const kwlist[] = { "nround", 0 };
+ if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:new", KWLIST,
+ convuint, &n))
+ goto end;
+ rc = (kxvik_pyobj *)ty->tp_alloc(ty, 0);
+ rc->n = n;
+ keccak1600_init(&rc->s);
+end:
+ return ((PyObject *)rc);
+}
+
+static PyObject *kxvikmeth_copy(PyObject *me, PyObject *arg)
+{
+ kxvik_pyobj *k = (kxvik_pyobj *)me, *rc = 0;
+ if (!PyArg_ParseTuple(arg, ":copy")) goto end;
+ rc = (kxvik_pyobj *)k->ob_type->tp_alloc(k->ob_type, 0);
+ rc->s = k->s; rc->n = k->n;
+end:
+ return ((PyObject *)rc);
+}
+
+static PyObject *kxvikmeth_mix(PyObject *me, PyObject *arg)
+{
+ kxvik_pyobj *k = (kxvik_pyobj *)me;
+ kludge64 t[25];
+ const octet *q;
+ octet buf[8];
+ unsigned i;
+ char *p; Py_ssize_t n;
+
+ if (!PyArg_ParseTuple(arg, "s#:mix", &p, &n)) goto end;
+ if (n > 200) VALERR("out of range");
+ q = (const octet *)p;
+ i = 0;
+ while (n > 8) { LOAD64_L_(t[i], q); i++; q += 8; n -= 8; }
+ if (n) {
+ memcpy(buf, q, n); memset(buf + n, 0, 8 - n);
+ LOAD64_L_(t[i], buf); i++;
+ }
+ keccak1600_mix(&k->s, t, i);
+ RETURN_ME;
+end:
+ return (0);
+}
+
+static PyObject *kxvikmeth_extract(PyObject *me, PyObject *arg)
+{
+ kxvik_pyobj *k = (kxvik_pyobj *)me;
+ PyObject *rc = 0;
+ kludge64 t[25];
+ octet *q, buf[8];
+ unsigned i;
+ unsigned n;
+
+ if (!PyArg_ParseTuple(arg, "O&:extract", convuint, &n)) goto end;
+ if (n > 200) VALERR("out of range");
+ rc = bytestring_pywrap(0, n);
+ q = (octet *)PyString_AS_STRING(rc);
+ keccak1600_extract(&k->s, t, (n + 7)/8);
+ i = 0;
+ while (n > 8) { STORE64_L_(q, t[i]); i++; q += 8; n -= 8; }
+ if (n) { STORE64_L_(buf, t[i]); memcpy(q, buf, n); }
+end:
+ return (rc);
+}
+
+static PyObject *kxvikmeth_step(PyObject *me, PyObject *arg)
+{
+ kxvik_pyobj *k = (kxvik_pyobj *)me;
+ if (!PyArg_ParseTuple(arg, ":step")) return (0);
+ keccak1600_p(&k->s, &k->s, k->n);
+ RETURN_ME;
+}
+
+static PyObject *kxvikget_nround(PyObject *me, void *hunoz)
+{
+ kxvik_pyobj *k = (kxvik_pyobj *)me;
+ return (PyInt_FromLong(k->n));
+}
+
+static int kxvikset_nround(PyObject *me, PyObject *val, void *hunoz)
+{
+ kxvik_pyobj *k = (kxvik_pyobj *)me;
+ unsigned n;
+ int rc = -1;
+
+ if (!val) NIERR("__del__");
+ if (!convuint(val, &n)) goto end;
+ k->n = n;
+ rc = 0;
+end:
+ return (rc);
+}
+
+static PyGetSetDef kxvik_pygetset[] = {
+#define GETSETNAME(op, name) kxvik##op##_##name
+ GETSET(nround, "KECCAK.nround -> number of rounds")
+#undef GETSETNAME
+ { 0 }
+};
+
+static PyMethodDef kxvik_pymethods[] = {
+#define METHNAME(func) kxvikmeth_##func
+ METH (copy, "KECCAK.copy() -> KECCAK'")
+ METH (mix, "KECCAK.mix(DATA)")
+ METH (extract, "KECCAK.extract(NOCTETS)")
+ METH (step, "KECCAK.step()")
+#undef METHNAME
+ { 0 }
+};
+
+static PyTypeObject kxvik_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "Keccak1600", /* @tp_name@ */
+ sizeof(kxvik_pyobj), /* @tp_basicsize@ */
+ 0, /* @tp_itemsize@ */
+
+ 0, /* @tp_dealloc@ */
+ 0, /* @tp_print@ */
+ 0, /* @tp_getattr@ */
+ 0, /* @tp_setattr@ */
+ 0, /* @tp_compare@ */
+ 0, /* @tp_repr@ */
+ 0, /* @tp_as_number@ */
+ 0, /* @tp_as_sequence@ */
+ 0, /* @tp_as_mapping@ */
+ 0, /* @tp_hash@ */
+ 0, /* @tp_call@ */
+ 0, /* @tp_str@ */
+ 0, /* @tp_getattro@ */
+ 0, /* @tp_setattro@ */
+ 0, /* @tp_as_buffer@ */
+ Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
+ Py_TPFLAGS_BASETYPE,
+
+ /* @tp_doc@ */
+"Keccak1600([nround = 24]): Keccak-p[1600, n] state.",
+
+ 0, /* @tp_traverse@ */
+ 0, /* @tp_clear@ */
+ 0, /* @tp_richcompare@ */
+ 0, /* @tp_weaklistoffset@ */
+ 0, /* @tp_iter@ */
+ 0, /* @tp_iternext@ */
+ kxvik_pymethods, /* @tp_methods@ */
+ 0, /* @tp_members@ */
+ kxvik_pygetset, /* @tp_getset@ */
+ 0, /* @tp_base@ */
+ 0, /* @tp_dict@ */
+ 0, /* @tp_descr_get@ */
+ 0, /* @tp_descr_set@ */
+ 0, /* @tp_dictoffset@ */
+ 0, /* @tp_init@ */
+ PyType_GenericAlloc, /* @tp_alloc@ */
+ kxvik_pynew, /* @tp_new@ */
+ 0, /* @tp_free@ */
+ 0 /* @tp_is_gc@ */
+};
+
+static PyTypeObject *shake_pytype, *shake128_pytype, *shake256_pytype;
+
+typedef struct shake_pyobj {
+ PyObject_HEAD
+ int st;
+ shake_ctx h;
+} shake_pyobj;
+
+#define SHAKE_H(o) (&((shake_pyobj *)(o))->h)
+#define SHAKE_ST(o) (((shake_pyobj *)(o))->st)
+
+static PyObject *shake_dopynew(void (*initfn)(shake_ctx *,
+ const void *, size_t,
+ const void *, size_t),
+ PyTypeObject *ty,
+ PyObject *arg, PyObject *kw)
+{
+ shake_pyobj *rc = 0;
+ char *p = 0, *f = 0;
+ Py_ssize_t psz = 0, fsz = 0;
+ static const char *const kwlist[] = { "perso", "func", 0 };
+
+ if (!PyArg_ParseTupleAndKeywords(arg, kw, "|s#s#:new", KWLIST,
+ &p, &psz, &f, &fsz))
+ goto end;
+ rc = (shake_pyobj *)ty->tp_alloc(ty, 0);
+ initfn(&rc->h, f, fsz, p, psz);
+ rc->st = 0;
+end:
+ return ((PyObject *)rc);
+}
+
+static PyObject *shake128_pynew(PyTypeObject *ty,
+ PyObject *arg, PyObject *kw)
+ { return (shake_dopynew(cshake128_init, ty, arg, kw)); }
+
+static PyObject *shake256_pynew(PyTypeObject *ty,
+ PyObject *arg, PyObject *kw)
+ { return (shake_dopynew(cshake256_init, ty, arg, kw)); }
+
+static int shake_check(PyObject *me, int st)
+{
+ if (SHAKE_ST(me) != st) VALERR("wrong state");
+ return (0);
+end:
+ return (-1);
+}
+
+static PyObject *shakemeth_hash(PyObject *me, PyObject *arg)
+{
+ char *p;
+ Py_ssize_t sz;
+ if (!PyArg_ParseTuple(arg, "s#:hash", &p, &sz)) return (0);
+ if (shake_check(me, 0)) return (0);
+ shake_hash(SHAKE_H(me), p, sz);
+ RETURN_ME;
+}
+
+#define SHAKEMETH_HASHU_(n, W, w) \
+ static PyObject *shakemeth_hashu##w(PyObject *me, PyObject *arg) \
+ { \
+ uint##n x; \
+ octet b[SZ_##W]; \
+ if (!PyArg_ParseTuple(arg, "O&:hashu" #w, convu##n, &x)) return (0); \
+ if (shake_check(me, 0)) return (0); \
+ STORE##W(b, x); shake_hash(SHAKE_H(me), b, sizeof(b)); \
+ RETURN_ME; \
+ }
+DOUINTCONV(SHAKEMETH_HASHU_)
+
+#define SHAKEMETH_HASHBUF_(n, W, w) \
+ static PyObject *shakemeth_hashbuf##w(PyObject *me, PyObject *arg) \
+ { \
+ char *p; \
+ Py_ssize_t sz; \
+ octet b[SZ_##W]; \
+ if (!PyArg_ParseTuple(arg, "s#:hashbuf" #w, &p, &sz)) goto end; \
+ if (sz > MASK##n) TYERR("string too long"); \
+ if (shake_check(me, 0)) goto end; \
+ STORE##W(b, sz); shake_hash(SHAKE_H(me), b, sizeof(b)); \
+ shake_hash(SHAKE_H(me), p, sz); \
+ RETURN_ME; \
+ end: \
+ return (0); \
+ }
+DOUINTCONV(SHAKEMETH_HASHBUF_)
+
+static PyObject *shakemeth_hashstrz(PyObject *me, PyObject *arg)
+{
+ char *p;
+ if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0);
+ if (shake_check(me, 0)) return (0);
+ shake_hash(SHAKE_H(me), p, strlen(p) + 1);
+ RETURN_ME;
+}
+
+static PyObject *shakemeth_xof(PyObject *me, PyObject *arg)
+{
+ if (!PyArg_ParseTuple(arg, ":xof")) goto end;
+ if (shake_check(me, 0)) goto end;
+ shake_xof(SHAKE_H(me));
+ SHAKE_ST(me) = 1;
+ RETURN_ME;
+end:
+ return (0);
+}
+
+static PyObject *shakemeth_done(PyObject *me, PyObject *arg)
+{
+ PyObject *rc = 0;
+ size_t n;
+ if (!PyArg_ParseTuple(arg, "O&:done", convszt, &n)) goto end;
+ if (shake_check(me, 0)) goto end;
+ rc = bytestring_pywrap(0, n);
+ shake_done(SHAKE_H(me), PyString_AS_STRING(rc), n);
+ SHAKE_ST(me) = -1;
+end:
+ return (rc);
+}
+
+static PyObject *shakemeth_copy(PyObject *me, PyObject *arg)
+{
+ shake_pyobj *rc = 0;
+
+ if (!PyArg_ParseTuple(arg, ":copy")) goto end;
+ rc = PyObject_NEW(shake_pyobj, me->ob_type);
+ rc->h = *SHAKE_H(me);
+ rc->st = SHAKE_ST(me);
+end:
+ return ((PyObject *)rc);
+}
+
+static PyObject *shakemeth_get(PyObject *me, PyObject *arg)
+{
+ PyObject *rc = 0;
+ size_t sz;
+
+ if (!PyArg_ParseTuple(arg, "O&:get", convszt, &sz)) goto end;
+ if (shake_check(me, 1)) goto end;
+ rc = bytestring_pywrap(0, sz);
+ shake_get(SHAKE_H(me), PyString_AS_STRING(rc), sz);
+end:
+ return (rc);
+}
+
+static PyObject *shakemeth_mask(PyObject *me, PyObject *arg)
+{
+ PyObject *rc = 0;
+ char *p; Py_ssize_t sz;
+
+ if (!PyArg_ParseTuple(arg, "s#:mask", &p, &sz)) goto end;
+ if (shake_check(me, 1)) goto end;
+ rc = bytestring_pywrap(0, sz);
+ shake_mask(SHAKE_H(me), p, PyString_AS_STRING(rc), sz);
+end:
+ return (rc);
+}
+
+static PyObject *shakeget_rate(PyObject *me, void *hunoz)
+ { return (PyInt_FromLong(SHAKE_H(me)->h.r)); }
+
+static PyObject *shakeget_buffered(PyObject *me, void *hunoz)
+ { return (PyInt_FromLong(SHAKE_H(me)->h.n)); }
+
+static PyObject *shakeget_state(PyObject *me, void *hunoz)
+{
+ int st = SHAKE_ST(me);
+ return (PyString_FromString(st == 0 ? "absorb" :
+ st == 1 ? "squeeze" : "dead"));
+}
+
+static PyGetSetDef shake_pygetset[] = {
+#define GETSETNAME(op, name) shake##op##_##name
+ GET (rate, "S.rate -> rate, in bytes")
+ GET (buffered, "S.buffered -> amount currently buffered")
+ GET (state, "S.state -> `absorb', `squeeze', `dead'")
+#undef GETSETNAME
+ { 0 }
+};
+
+static PyMethodDef shake_pymethods[] = {
+#define METHNAME(func) shakemeth_##func
+ METH (copy, "S.copy() -> SS")
+ METH (hash, "S.hash(M)")
+#define METHU_(n, W, w) METH(hashu##w, "S.hashu" #w "(WORD)")
+ DOUINTCONV(METHU_)
+#undef METHU_
+#define METHBUF_(n, W, w) METH(hashbuf##w, "S.hashbuf" #w "(BYTES)")
+ DOUINTCONV(METHBUF_)
+#undef METHBUF_
+ METH (hashstrz, "S.hashstrz(STRING)")
+ METH (xof, "S.xof()")
+ METH (done, "S.done(LEN) ->H")
+ METH (get, "S.get(LEN) -> H")
+ METH (mask, "S.mask(M) -> C")
+#undef METHNAME
+ { 0 }
+};
+
+static PyTypeObject shake_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "Shake", /* @tp_name@ */
+ sizeof(shake_pyobj), /* @tp_basicsize@ */
+ 0, /* @tp_itemsize@ */
+
+ 0, /* @tp_dealloc@ */
+ 0, /* @tp_print@ */
+ 0, /* @tp_getattr@ */
+ 0, /* @tp_setattr@ */
+ 0, /* @tp_compare@ */
+ 0, /* @tp_repr@ */
+ 0, /* @tp_as_number@ */
+ 0, /* @tp_as_sequence@ */
+ 0, /* @tp_as_mapping@ */
+ 0, /* @tp_hash@ */
+ 0, /* @tp_call@ */
+ 0, /* @tp_str@ */
+ 0, /* @tp_getattro@ */
0, /* @tp_setattro@ */
0, /* @tp_as_buffer@ */
Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
Py_TPFLAGS_BASETYPE,
/* @tp_doc@ */
-"Message authentication code metametaclass.",
+"SHAKE/cSHAKE base class.",
0, /* @tp_traverse@ */
0, /* @tp_clear@ */
0, /* @tp_richcompare@ */
0, /* @tp_weaklistoffset@ */
0, /* @tp_iter@ */
- 0, /* @tp_iternexr@ */
- 0, /* @tp_methods@ */
+ 0, /* @tp_iternext@ */
+ shake_pymethods, /* @tp_methods@ */
0, /* @tp_members@ */
- gcmac_pygetset, /* @tp_getset@ */
+ shake_pygetset, /* @tp_getset@ */
0, /* @tp_base@ */
0, /* @tp_dict@ */
0, /* @tp_descr_get@ */
0 /* @tp_is_gc@ */
};
-static PyTypeObject gmac_pytype_skel = {
- PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */
- "catacomb.GMAC", /* @tp_name@ */
- sizeof(gmac_pyobj), /* @tp_basicsize@ */
+static PyTypeObject shake128_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "Shake128", /* @tp_name@ */
+ 0, /* @tp_basicsize@ */
0, /* @tp_itemsize@ */
- gmac_pydealloc, /* @tp_dealloc@ */
+ 0, /* @tp_dealloc@ */
0, /* @tp_print@ */
0, /* @tp_getattr@ */
0, /* @tp_setattr@ */
Py_TPFLAGS_BASETYPE,
/* @tp_doc@ */
-"Message authentication code metaclass, abstract base class.",
+"Shake128([perso = STR], [func = STR]): SHAKE128/cSHAKE128 XOF.",
0, /* @tp_traverse@ */
0, /* @tp_clear@ */
0, /* @tp_richcompare@ */
0, /* @tp_weaklistoffset@ */
0, /* @tp_iter@ */
- 0, /* @tp_iternexr@ */
+ 0, /* @tp_iternext@ */
0, /* @tp_methods@ */
0, /* @tp_members@ */
0, /* @tp_getset@ */
0, /* @tp_dictoffset@ */
0, /* @tp_init@ */
PyType_GenericAlloc, /* @tp_alloc@ */
- abstract_pynew, /* @tp_new@ */
+ shake128_pynew, /* @tp_new@ */
0, /* @tp_free@ */
0 /* @tp_is_gc@ */
};
-static PyTypeObject gmhash_pytype_skel = {
- PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */
- "catacomb.GMACHash", /* @tp_name@ */
- sizeof(ghash_pyobj), /* @tp_basicsize@ */
+static PyTypeObject shake256_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "Shake256", /* @tp_name@ */
+ 0, /* @tp_basicsize@ */
0, /* @tp_itemsize@ */
- ghash_pydealloc, /* @tp_dealloc@ */
+ 0, /* @tp_dealloc@ */
0, /* @tp_print@ */
0, /* @tp_getattr@ */
0, /* @tp_setattr@ */
Py_TPFLAGS_BASETYPE,
/* @tp_doc@ */
-"Message authentication code, abstract base class.",
+"Shake256([perso = STR], [func = STR]): SHAKE256/cSHAKE256 XOF.",
+
+ 0, /* @tp_traverse@ */
+ 0, /* @tp_clear@ */
+ 0, /* @tp_richcompare@ */
+ 0, /* @tp_weaklistoffset@ */
+ 0, /* @tp_iter@ */
+ 0, /* @tp_iternext@ */
+ 0, /* @tp_methods@ */
+ 0, /* @tp_members@ */
+ 0, /* @tp_getset@ */
+ 0, /* @tp_base@ */
+ 0, /* @tp_dict@ */
+ 0, /* @tp_descr_get@ */
+ 0, /* @tp_descr_set@ */
+ 0, /* @tp_dictoffset@ */
+ 0, /* @tp_init@ */
+ PyType_GenericAlloc, /* @tp_alloc@ */
+ shake256_pynew, /* @tp_new@ */
+ 0, /* @tp_free@ */
+ 0 /* @tp_is_gc@ */
+};
+
+/*----- Pseudorandom permutations -----------------------------------------*/
+
+static PyTypeObject *gcprp_pytype, *gprp_pytype;
+
+typedef struct prpinfo {
+ const char *name;
+ const octet *keysz;
+ size_t ctxsz;
+ size_t blksz;
+ void (*init)(void *, const void *, size_t);
+ void (*eblk)(void *, const void *, void *);
+ void (*dblk)(void *, const void *, void *);
+} prpinfo;
+
+#define PRP_DEF(PRE, pre) \
+ static void pre##_prpinit(void *ctx, const void *k, size_t ksz) \
+ { pre##_init(ctx, k, ksz); } \
+ static void pre##_prpeblk(void *ctx, const void *in, void *out) \
+ { \
+ uint32 w[PRE##_BLKSZ/4]; BLKC_LOAD(PRE, w, in); \
+ pre##_eblk(ctx, w, w); BLKC_STORE(PRE, out, w); \
+ } \
+ static void pre##_prpdblk(void *ctx, const void *in, void *out) \
+ { \
+ uint32 w[PRE##_BLKSZ/4]; BLKC_LOAD(PRE, w, in); \
+ pre##_dblk(ctx, w, w); BLKC_STORE(PRE, out, w); \
+ } \
+ static const prpinfo pre##_prpinfo = { \
+ #pre, pre##_keysz, sizeof(pre##_ctx), PRE##_BLKSZ, \
+ pre##_prpinit, pre##_prpeblk, pre##_prpdblk \
+ };
+PRPS(PRP_DEF)
+
+static const struct prpinfo *const gprptab[] = {
+#define PRP_ENTRY(PRE, pre) &pre##_prpinfo,
+ PRPS(PRP_ENTRY)
+ 0
+};
+
+typedef struct gcprp_pyobj {
+ PyHeapTypeObject ty;
+ const prpinfo *prp;
+} gcprp_pyobj;
+#define GCPRP_PRP(o) (((gcprp_pyobj *)(o))->prp)
+
+typedef struct gprp_pyobj {
+ PyObject_HEAD
+ const prpinfo *prp;
+} gprp_pyobj;
+#define GPRP_PRP(o) (((gprp_pyobj *)(o))->prp)
+#define GPRP_CTX(o) (((gprp_pyobj *)(o)) + 1)
+
+typedef struct prp {
+ const prpinfo *prp;
+ void *ctx;
+} prp;
+
+static PyObject *gprp_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
+{
+ static const char *const kwlist[] = { "key", 0 };
+ char *k;
+ Py_ssize_t sz;
+ const prpinfo *prp = GCPRP_PRP(ty);
+ PyObject *me;
+
+ if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", KWLIST, &k, &sz))
+ goto end;
+ if (keysz(sz, prp->keysz) != sz) VALERR("bad key length");
+ me = (PyObject *)ty->tp_alloc(ty, 0);
+ GPRP_PRP(me) = prp;
+ prp->init(GPRP_CTX(me), k, sz);
+ Py_INCREF(me);
+ return (me);
+end:
+ return (0);
+}
+
+static void gprp_pydealloc(PyObject *me)
+ { Py_DECREF(me->ob_type); FREEOBJ(me); }
+
+static PyObject *gcprp_pywrap(const prpinfo *prp)
+{
+ gcprp_pyobj *g = newtype(gcprp_pytype, 0, prp->name);
+ g->prp = prp;
+ g->ty.ht_type.tp_basicsize = sizeof(gprp_pyobj) + prp->ctxsz;
+ g->ty.ht_type.tp_base = gprp_pytype;
+ Py_INCREF(gprp_pytype);
+ g->ty.ht_type.tp_flags = (Py_TPFLAGS_DEFAULT |
+ Py_TPFLAGS_BASETYPE |
+ Py_TPFLAGS_HEAPTYPE);
+ g->ty.ht_type.tp_alloc = PyType_GenericAlloc;
+ g->ty.ht_type.tp_free = 0;
+ g->ty.ht_type.tp_new = gprp_pynew;
+ typeready(&g->ty.ht_type);
+ return ((PyObject *)g);
+}
+
+static PyObject *gcpget_name(PyObject *me, void *hunoz)
+ { return (PyString_FromString(GCPRP_PRP(me)->name)); }
+static PyObject *gcpget_keysz(PyObject *me, void *hunoz)
+ { return (keysz_pywrap(GCPRP_PRP(me)->keysz)); }
+static PyObject *gcpget_blksz(PyObject *me, void *hunoz)
+ { return (PyInt_FromLong(GCPRP_PRP(me)->blksz)); }
+
+static PyObject *gpmeth_encrypt(PyObject *me, PyObject *arg)
+{
+ char *p;
+ Py_ssize_t n;
+ PyObject *rc = 0;
+
+ if (!PyArg_ParseTuple(arg, "s#:encrypt", &p, &n)) goto end;
+ if (n != GPRP_PRP(me)->blksz) VALERR("incorrect block length");
+ rc = bytestring_pywrap(0, n);
+ GPRP_PRP(me)->eblk(GPRP_CTX(me), p, PyString_AS_STRING(rc));
+end:
+ return (rc);
+}
+
+static PyObject *gpmeth_decrypt(PyObject *me, PyObject *arg)
+{
+ char *p;
+ Py_ssize_t n;
+ PyObject *rc = 0;
+
+ if (!PyArg_ParseTuple(arg, "s#:decrypt", &p, &n)) goto end;
+ if (n != GPRP_PRP(me)->blksz) VALERR("incorrect block length");
+ rc = bytestring_pywrap(0, n);
+ GPRP_PRP(me)->dblk(GPRP_CTX(me), p, PyString_AS_STRING(rc));
+end:
+ return (rc);
+}
+
+static PyGetSetDef gcprp_pygetset[] = {
+#define GETSETNAME(op, name) gcp##op##_##name
+ GET (keysz, "CP.keysz -> acceptable key sizes")
+ GET (blksz, "CP.blksz -> block size")
+ GET (name, "CP.name -> name of this kind of PRP")
+#undef GETSETNAME
+ { 0 }
+};
+
+static PyMethodDef gprp_pymethods[] = {
+#define METHNAME(name) gpmeth_##name
+ METH (encrypt, "P.encrypt(PT) -> CT")
+ METH (decrypt, "P.decrypt(CT) -> PT")
+#undef METHNAME
+ { 0 }
+};
+
+static PyTypeObject gcprp_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "GCPRP", /* @tp_name@ */
+ sizeof(gcprp_pyobj), /* @tp_basicsize@ */
+ 0, /* @tp_itemsize@ */
+
+ 0, /* @tp_dealloc@ */
+ 0, /* @tp_print@ */
+ 0, /* @tp_getattr@ */
+ 0, /* @tp_setattr@ */
+ 0, /* @tp_compare@ */
+ 0, /* @tp_repr@ */
+ 0, /* @tp_as_number@ */
+ 0, /* @tp_as_sequence@ */
+ 0, /* @tp_as_mapping@ */
+ 0, /* @tp_hash@ */
+ 0, /* @tp_call@ */
+ 0, /* @tp_str@ */
+ 0, /* @tp_getattro@ */
+ 0, /* @tp_setattro@ */
+ 0, /* @tp_as_buffer@ */
+ Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
+ Py_TPFLAGS_BASETYPE,
+
+ /* @tp_doc@ */
+"Pseudorandom permutation metaclass.",
0, /* @tp_traverse@ */
0, /* @tp_clear@ */
0, /* @tp_richcompare@ */
0, /* @tp_weaklistoffset@ */
0, /* @tp_iter@ */
- 0, /* @tp_iternexr@ */
+ 0, /* @tp_iternext@ */
0, /* @tp_methods@ */
0, /* @tp_members@ */
+ gcprp_pygetset, /* @tp_getset@ */
+ 0, /* @tp_base@ */
+ 0, /* @tp_dict@ */
+ 0, /* @tp_descr_get@ */
+ 0, /* @tp_descr_set@ */
+ 0, /* @tp_dictoffset@ */
+ 0, /* @tp_init@ */
+ PyType_GenericAlloc, /* @tp_alloc@ */
+ abstract_pynew, /* @tp_new@ */
+ 0, /* @tp_free@ */
+ 0 /* @tp_is_gc@ */
+};
+
+static PyTypeObject gprp_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "GPRP", /* @tp_name@ */
+ sizeof(gprp_pyobj), /* @tp_basicsize@ */
+ 0, /* @tp_itemsize@ */
+
+ gprp_pydealloc, /* @tp_dealloc@ */
+ 0, /* @tp_print@ */
+ 0, /* @tp_getattr@ */
+ 0, /* @tp_setattr@ */
+ 0, /* @tp_compare@ */
+ 0, /* @tp_repr@ */
+ 0, /* @tp_as_number@ */
+ 0, /* @tp_as_sequence@ */
+ 0, /* @tp_as_mapping@ */
+ 0, /* @tp_hash@ */
+ 0, /* @tp_call@ */
+ 0, /* @tp_str@ */
+ 0, /* @tp_getattro@ */
+ 0, /* @tp_setattro@ */
+ 0, /* @tp_as_buffer@ */
+ Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
+ Py_TPFLAGS_BASETYPE,
+
+ /* @tp_doc@ */
+"Pseudorandom permutation, abstract base class.",
+
+ 0, /* @tp_traverse@ */
+ 0, /* @tp_clear@ */
+ 0, /* @tp_richcompare@ */
+ 0, /* @tp_weaklistoffset@ */
+ 0, /* @tp_iter@ */
+ 0, /* @tp_iternext@ */
+ gprp_pymethods, /* @tp_methods@ */
+ 0, /* @tp_members@ */
0, /* @tp_getset@ */
0, /* @tp_base@ */
0, /* @tp_dict@ */
/*----- Main code ---------------------------------------------------------*/
+static PyMethodDef methods[] = {
+#define METHNAME(func) meth_##func
+ METH (_KeySZ_fromdl, "\
+fromdl(N) -> M: convert integer discrete log field size to work factor")
+ METH (_KeySZ_fromschnorr, "\
+fromschnorr(N) -> M: convert Schnorr group order to work factor")
+ METH (_KeySZ_fromif, "\
+fromif(N) -> M: convert integer factorization problem size to work factor")
+ METH (_KeySZ_fromec, "\
+fromec(N) -> M: convert elliptic curve group order to work factor")
+ METH (_KeySZ_todl, "\
+todl(N) -> M: convert work factor to integer discrete log field size")
+ METH (_KeySZ_toschnorr, "\
+toschnorr(N) -> M: convert work factor to Schnorr group order")
+ METH (_KeySZ_toif, "\
+toif(N) -> M: convert work factor to integer factorization problem size")
+ METH (_KeySZ_toec, "\
+toec(N) -> M: convert work factor to elliptic curve group order")
+ METH (_KeySZ_toec, "\
+toec(N) -> M: convert work factor to elliptic curve group order")
+#define METH_HDANCE(hdance, HDance) METH(hdance##_prf, "\
+" #hdance "_prf(K, N) -> H: calculate " HDance " hash of N with K")
+ METH_HDANCE(hsalsa20, "HSalsa20")
+ METH_HDANCE(hsalsa2012, "HSalsa20/12")
+ METH_HDANCE(hsalsa208, "HSalsa20/8")
+ METH_HDANCE(hchacha20, "HChaCha20")
+ METH_HDANCE(hchacha12, "HChaCha12")
+ METH_HDANCE(hchacha8, "HChaCha8")
+#undef METH_DANCE
+#undef METHNAME
+ { 0 }
+};
+
void algorithms_pyinit(void)
{
INITTYPE(keysz, root);
INITTYPE(keyszset, keysz);
INITTYPE(gccipher, type);
INITTYPE(gcipher, root);
+ INITTYPE(gcaead, type);
+ INITTYPE(gaeadkey, root);
+ INITTYPE(gcaeadaad, type);
+ INITTYPE(gaeadaad, root);
+ INITTYPE(gcaeadenc, type);
+ INITTYPE(gaeadenc, root);
+ INITTYPE(gcaeaddec, type);
+ INITTYPE(gaeaddec, root);
INITTYPE(gchash, type);
INITTYPE(ghash, root);
INITTYPE(gcmac, type);
INITTYPE(gmac, type);
INITTYPE(gmhash, ghash);
+ INITTYPE(poly1305cls, type);
+ INITTYPE_META(poly1305key, type, poly1305cls);
+ INITTYPE(poly1305hash, root);
+ INITTYPE(kxvik, root);
+ INITTYPE(shake, root);
+ INITTYPE(shake128, shake);
+ INITTYPE(shake256, shake);
+ INITTYPE(gcprp, type);
+ INITTYPE(gprp, root);
+ addmethods(methods);
}
-#define GEN(func, base) \
- static PyObject *func(void) \
- { \
- PyObject *d = PyDict_New(); \
- PyObject *o; \
- int i; \
- \
- for (i = 0; g##base##tab[i]; i++) { \
- o = gc##base##_pywrap((/*unconst*/ gc##base *)g##base##tab[i]); \
- PyDict_SetItemString(d, \
- (/*unconst*/ char *)g##base##tab[i]->name, \
- o); \
- Py_DECREF(o); \
- } \
- return (d); \
- }
GEN(gcciphers, cipher)
+GEN(gcaeads, aead)
GEN(gchashes, hash)
GEN(gcmacs, mac)
+#define gcprp prpinfo
+GEN(gcprps, prp)
void algorithms_pyinsert(PyObject *mod)
{
INSERT("GCCipher", gccipher_pytype);
INSERT("GCipher", gcipher_pytype);
INSERT("gcciphers", gcciphers());
+ INSERT("GCAEAD", gcaead_pytype);
+ INSERT("GAEKey", gaeadkey_pytype);
+ INSERT("GAEAADClass", gcaeadaad_pytype);
+ INSERT("GAEAAD", gaeadaad_pytype);
+ INSERT("GAEEncClass", gcaeadenc_pytype);
+ INSERT("GAEEnc", gaeadenc_pytype);
+ INSERT("GAEDecClass", gcaeaddec_pytype);
+ INSERT("GAEDec", gaeaddec_pytype);
+ INSERT("gcaeads", gcaeads());
INSERT("GCHash", gchash_pytype);
INSERT("GHash", ghash_pytype);
INSERT("gchashes", d = gchashes());
INSERT("GMAC", gmac_pytype);
INSERT("GMACHash", gmhash_pytype);
INSERT("gcmacs", gcmacs());
+ INSERT("Poly1305Class", poly1305cls_pytype);
+ INSERT("poly1305", poly1305key_pytype);
+ INSERT("Poly1305Hash", poly1305hash_pytype);
+ INSERT("Keccak1600", kxvik_pytype);
+ INSERT("Shake", shake_pytype);
+ INSERT("Shake128", shake128_pytype);
+ INSERT("Shake256", shake256_pytype);
+ INSERT("GCPRP", gcprp_pytype);
+ INSERT("GPRP", gprp_pytype);
+ INSERT("gcprps", gcprps());
}
/*----- That's all, folks -------------------------------------------------*/
~mdw / catacomb-python / blobdiff