+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@ */
~mdw / catacomb-python / blobdiff