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];
+ 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;
keyszset_pyobj *o =
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,
static PyTypeObject keysz_pytype_skel = {
PyObject_HEAD_INIT(0) 0, /* Header */
- "catacomb.KeySZ", /* @tp_name@ */
+ "KeySZ", /* @tp_name@ */
sizeof(keysz_pyobj), /* @tp_basicsize@ */
0, /* @tp_itemsize@ */
static PyTypeObject keyszany_pytype_skel = {
PyObject_HEAD_INIT(0) 0, /* Header */
- "catacomb.KeySZAny", /* @tp_name@ */
+ "KeySZAny", /* @tp_name@ */
sizeof(keysz_pyobj), /* @tp_basicsize@ */
0, /* @tp_itemsize@ */
static PyTypeObject keyszrange_pytype_skel = {
PyObject_HEAD_INIT(0) 0, /* Header */
- "catacomb.KeySZRange", /* @tp_name@ */
+ "KeySZRange", /* @tp_name@ */
sizeof(keyszrange_pyobj), /* @tp_basicsize@ */
0, /* @tp_itemsize@ */
static PyTypeObject keyszset_pytype_skel = {
PyObject_HEAD_INIT(0) 0, /* Header */
- "catacomb.KeySZSet", /* @tp_name@ */
+ "KeySZSet", /* @tp_name@ */
sizeof(keyszset_pyobj), /* @tp_basicsize@ */
0, /* @tp_itemsize@ */
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;
{
char *kwlist[] = { "k", 0 };
char *k;
- int sz;
+ Py_ssize_t sz;
if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &sz))
goto end;
g->ty.ht_type.tp_alloc = PyType_GenericAlloc;
g->ty.ht_type.tp_free = 0;
g->ty.ht_type.tp_new = gcipher_pynew;
- PyType_Ready(&g->ty.ht_type);
+ typeready(&g->ty.ht_type);
return ((PyObject *)g);
}
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(0) 0, /* Header */
- "catacomb.GCCipher", /* @tp_name@ */
+ "GCCipher", /* @tp_name@ */
sizeof(gccipher_pyobj), /* @tp_basicsize@ */
0, /* @tp_itemsize@ */
static PyTypeObject gcipher_pytype_skel = {
PyObject_HEAD_INIT(0) 0, /* Header */
- "catacomb.GCipher", /* @tp_name@ */
+ "GCipher", /* @tp_name@ */
sizeof(gcipher_pyobj), /* @tp_basicsize@ */
0, /* @tp_itemsize@ */
g->ty.ht_type.tp_alloc = PyType_GenericAlloc;
g->ty.ht_type.tp_free = 0;
g->ty.ht_type.tp_new = ghash_pynew;
- PyType_Ready(&g->ty.ht_type);
+ typeready(&g->ty.ht_type);
return ((PyObject *)g);
}
static PyObject *ghmeth_hash(PyObject *me, PyObject *arg)
{
char *p;
- int sz;
+ Py_ssize_t sz;
if (!PyArg_ParseTuple(arg, "s#:hash", &p, &sz)) return (0);
GH_HASH(GHASH_H(me), p, sz);
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.blksz -> hash output size")
- GET (name, "CH.name -> name of this kind of hash")
-#undef GETSETNAME
- { 0 }
-};
-
#define GHMETH_HASHU_(n, W, w) \
static PyObject *ghmeth_hashu##w(PyObject *me, PyObject *arg) \
{ \
static PyObject *ghmeth_hashbuf##w(PyObject *me, PyObject *arg) \
{ \
char *p; \
- int sz; \
+ 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;
}
+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 (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
static PyTypeObject gchash_pytype_skel = {
PyObject_HEAD_INIT(0) 0, /* Header */
- "catacomb.GCHash", /* @tp_name@ */
+ "GCHash", /* @tp_name@ */
sizeof(gchash_pyobj), /* @tp_basicsize@ */
0, /* @tp_itemsize@ */
static PyTypeObject ghash_pytype_skel = {
PyObject_HEAD_INIT(0) 0, /* Header */
- "catacomb.GHash", /* @tp_name@ */
+ "GHash", /* @tp_name@ */
sizeof(ghash_pyobj), /* @tp_basicsize@ */
0, /* @tp_itemsize@ */
{
char *kwlist[] = { "k", 0 };
char *k;
- int sz;
+ Py_ssize_t sz;
if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &sz))
goto end;
g->ty.ht_type.tp_alloc = PyType_GenericAlloc;
g->ty.ht_type.tp_free = 0;
g->ty.ht_type.tp_new = gmac_pynew;
- PyType_Ready(&g->ty.ht_type);
+ typeready(&g->ty.ht_type);
return ((PyObject *)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;
g->ty.ht_type.tp_alloc = PyType_GenericAlloc;
g->ty.ht_type.tp_free = 0;
g->ty.ht_type.tp_new = gmhash_pynew;
- PyType_Ready(&g->ty.ht_type);
+ typeready(&g->ty.ht_type);
g->m = m;
g->f = f;
return ((PyObject *)g);
static PyTypeObject gcmac_pytype_skel = {
PyObject_HEAD_INIT(0) 0, /* Header */
- "catacomb.GCMAC", /* @tp_name@ */
+ "GCMAC", /* @tp_name@ */
sizeof(gchash_pyobj), /* @tp_basicsize@ */
0, /* @tp_itemsize@ */
static PyTypeObject gmac_pytype_skel = {
PyObject_HEAD_INIT(0) 0, /* Header */
- "catacomb.GMAC", /* @tp_name@ */
+ "GMAC", /* @tp_name@ */
sizeof(gmac_pyobj), /* @tp_basicsize@ */
0, /* @tp_itemsize@ */
static PyTypeObject gmhash_pytype_skel = {
PyObject_HEAD_INIT(0) 0, /* Header */
- "catacomb.GMACHash", /* @tp_name@ */
+ "GMACHash", /* @tp_name@ */
sizeof(ghash_pyobj), /* @tp_basicsize@ */
0, /* @tp_itemsize@ */
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)
+/*----- Special snowflake for Poly1305 ------------------------------------*/
-static const struct prpinfo *const gprptab[] = {
-#define PRP_ENTRY(PRE, pre) &pre##_prpinfo,
- PRPS(PRP_ENTRY)
- 0
-};
+PyTypeObject *poly1305cls_pytype, *poly1305key_pytype, *poly1305hash_pytype;
-typedef struct gcprp_pyobj {
+typedef struct poly1305key_pyobj {
PyHeapTypeObject ty;
- const prpinfo *prp;
-} gcprp_pyobj;
-#define GCPRP_PRP(o) (((gcprp_pyobj *)(o))->prp)
+ poly1305_key k;
+} poly1305key_pyobj;
-typedef struct gprp_pyobj {
+typedef struct poly1305hash_pyobj {
PyObject_HEAD
- const prpinfo *prp;
-} gprp_pyobj;
-#define GPRP_PRP(o) (((gprp_pyobj *)(o))->prp)
-#define GPRP_CTX(o) (((gprp_pyobj *)(o)) + 1)
+ unsigned f;
+#define f_mask 1u
+ poly1305_ctx ctx;
+} poly1305hash_pyobj;
-typedef struct prp {
- const prpinfo *prp;
- void *ctx;
-} prp;
+#define P1305_F(o) (((poly1305hash_pyobj *)(o))->f)
+#define P1305_CTX(o) (&((poly1305hash_pyobj *)(o))->ctx)
+CONVFUNC(poly1305hash, poly1305_ctx *, P1305_CTX)
-static PyObject *gprp_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
+static PyObject *poly1305hash_pynew(PyTypeObject *ty,
+ PyObject *arg, PyObject *kw)
{
- char *kwlist[] = { "key", 0 };
+ char *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)
+{
+ char *kwlist[] = { "k", 0 };
+ poly1305key_pyobj *pk;
char *k;
- int sz;
- const prpinfo *prp = GCPRP_PRP(ty);
- PyObject *me;
+ Py_ssize_t sz;
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);
+ 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 void gprp_pydealloc(PyObject *me)
- { Py_DECREF(me->ob_type); FREEOBJ(me); }
+static PyObject *poly1305clsget_name(PyObject *me, void *hunoz)
+ { return (PyString_FromString("poly1305")); }
-static PyObject *gcprp_pywrap(const prpinfo *prp)
+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)
{
- 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;
- PyType_Ready(&g->ty.ht_type);
- return ((PyObject *)g);
+ 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 *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 *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;
+}
-static PyObject *gpmeth_encrypt(PyObject *me, PyObject *arg)
+#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)) goto end; \
+ STORE##W(b, x); poly1305_hash(P1305_CTX(me), b, sizeof(b)); \
+ RETURN_ME; \
+ end: \
+ return (0); \
+ }
+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;
- int n;
- PyObject *rc = 0;
+ if (!PyArg_ParseTuple(arg, "s:hashstrz", &p)) return (0);
+ poly1305_hash(P1305_CTX(me), p, strlen(p) + 1);
+ RETURN_ME;
+}
- 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 *polymeth_flush(PyObject *me, PyObject *arg)
+{
+ if (!PyArg_ParseTuple(arg, ":flush")) return (0);
+ poly1305_flush(P1305_CTX(me));
+ RETURN_ME;
}
-static PyObject *gpmeth_decrypt(PyObject *me, PyObject *arg)
+static PyObject *polymeth_flushzero(PyObject *me, PyObject *arg)
{
- char *p;
- int n;
- PyObject *rc = 0;
+ if (!PyArg_ParseTuple(arg, ":flushzero")) return (0);
+ poly1305_flushzero(P1305_CTX(me));
+ RETURN_ME;
+}
- 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));
+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 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")
+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 gprp_pymethods[] = {
-#define METHNAME(name) gpmeth_##name
- METH (encrypt, "P.encrypt(PT) -> CT")
- METH (decrypt, "P.decrypt(CT) -> PT")
+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 gcprp_pytype_skel = {
+static PyTypeObject poly1305cls_pytype_skel = {
PyObject_HEAD_INIT(0) 0, /* Header */
- "catacomb.GCPRP", /* @tp_name@ */
- sizeof(gcprp_pyobj), /* @tp_basicsize@ */
+ "Poly1305Class", /* @tp_name@ */
+ sizeof(PyHeapTypeObject), /* @tp_basicsize@ */
0, /* @tp_itemsize@ */
0, /* @tp_dealloc@ */
Py_TPFLAGS_BASETYPE,
/* @tp_doc@ */
-"Pseudorandom permutation metaclass.",
+"Poly1305 metametaclass. Best not to ask.",
0, /* @tp_traverse@ */
0, /* @tp_clear@ */
0, /* @tp_iternext@ */
0, /* @tp_methods@ */
0, /* @tp_members@ */
- gcprp_pygetset, /* @tp_getset@ */
+ poly1305cls_pygetset, /* @tp_getset@ */
0, /* @tp_base@ */
0, /* @tp_dict@ */
0, /* @tp_descr_get@ */
0 /* @tp_is_gc@ */
};
-static PyTypeObject gprp_pytype_skel = {
+static PyTypeObject poly1305key_pytype_skel = {
PyObject_HEAD_INIT(0) 0, /* Header */
- "catacomb.GPRP", /* @tp_name@ */
- sizeof(gprp_pyobj), /* @tp_basicsize@ */
+ "poly1305", /* @tp_name@ */
+ sizeof(poly1305key_pyobj), /* @tp_basicsize@ */
0, /* @tp_itemsize@ */
- gprp_pydealloc, /* @tp_dealloc@ */
+ 0, /* @tp_dealloc@ */
0, /* @tp_print@ */
0, /* @tp_getattr@ */
0, /* @tp_setattr@ */
Py_TPFLAGS_BASETYPE,
/* @tp_doc@ */
-"Pseudorandom permutation, abstract base class.",
+"Poly1305 key.",
0, /* @tp_traverse@ */
0, /* @tp_clear@ */
0, /* @tp_weaklistoffset@ */
0, /* @tp_iter@ */
0, /* @tp_iternext@ */
- gprp_pymethods, /* @tp_methods@ */
+ 0, /* @tp_methods@ */
0, /* @tp_members@ */
0, /* @tp_getset@ */
0, /* @tp_base@ */
0, /* @tp_dictoffset@ */
0, /* @tp_init@ */
PyType_GenericAlloc, /* @tp_alloc@ */
- abstract_pynew, /* @tp_new@ */
+ poly1305key_pynew, /* @tp_new@ */
0, /* @tp_free@ */
0 /* @tp_is_gc@ */
};
-/*----- Main code ---------------------------------------------------------*/
+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 != 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;
+ char *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_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&:mix", 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;
+
+ if (!convuint(val, &n)) return (-1);
+ k->n = n;
+ return (0);
+}
+
+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 (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@ */
+"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;
+ char *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)) goto end; \
+ if (shake_check(me, 0)) goto end; \
+ STORE##W(b, x); shake_hash(SHAKE_H(me), b, sizeof(b)); \
+ RETURN_ME; \
+ end: \
+ return (0); \
+ }
+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 *)me);
+}
+
+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@ */
+"SHAKE/cSHAKE base class.",
+
+ 0, /* @tp_traverse@ */
+ 0, /* @tp_clear@ */
+ 0, /* @tp_richcompare@ */
+ 0, /* @tp_weaklistoffset@ */
+ 0, /* @tp_iter@ */
+ 0, /* @tp_iternext@ */
+ shake_pymethods, /* @tp_methods@ */
+ 0, /* @tp_members@ */
+ shake_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 shake128_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "Shake128", /* @tp_name@ */
+ 0, /* @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@ */
+"SHAKE128/cSHAKE128 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@ */
+ shake128_pynew, /* @tp_new@ */
+ 0, /* @tp_free@ */
+ 0 /* @tp_is_gc@ */
+};
+
+static PyTypeObject shake256_pytype_skel = {
+ PyObject_HEAD_INIT(0) 0, /* Header */
+ "Shake256", /* @tp_name@ */
+ 0, /* @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@ */
+"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)
+{
+ char *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_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@ */
+ 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@ */
+};
+
+/*----- 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(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);
}
GEN(gcciphers, cipher)
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());
~mdw / catacomb-python / blobdiff