CONVFUNC(grand, grand *, GRAND_R)
+static int grand_check(PyObject *me)
+{
+ if (!GRAND_R(me)) VALERR("random generator object is no longer valid");
+ return (0);
+end:
+ return (-1);
+}
+
static PyObject *grmeth_byte(PyObject *me, PyObject *arg)
{
if (!PyArg_ParseTuple(arg, ":byte")) return (0);
+ if (grand_check(me)) return (0);
return (PyInt_FromLong(grand_byte(GRAND_R(me))));
}
static PyObject *grmeth_word(PyObject *me, PyObject *arg)
{
if (!PyArg_ParseTuple(arg, ":word")) return (0);
+ if (grand_check(me)) return (0);
return (getulong(grand_word(GRAND_R(me))));
}
mp *y = 0;
if (!PyArg_ParseTuple(arg, "O:range", &m)) return (0);
+ if (grand_check(me)) return (0);
if (PyInt_Check(m)) {
long mm = PyInt_AS_LONG(m);
if (mm <= 0)
if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&:mp", kwlist,
convszt, &l, convmpw, &o))
goto end;
+ if (grand_check(me)) return (0);
if (l < MPW_BITS && (o >> l)) VALERR("or mask too large");
return (mp_pywrap(mprand(MP_NEW, l, GRAND_R(me), o)));
end:
PyObject *rc = 0;
if (!PyArg_ParseTuple(arg, "O&:block", convulong, &n)) goto end;
+ if (grand_check(me)) return (0);
rc = bytestring_pywrap(0, n);
grand_fill(GRAND_R(me), PyString_AS_STRING(rc), n);
end:
static int checkop(grand *r, unsigned op, const char *what)
{
- if (r->ops->misc(r, GRAND_CHECK, op))
- return (0);
+ if (r->ops->misc(r, GRAND_CHECK, op)) return (0);
PyErr_Format(PyExc_TypeError, "operation %s not supported", what);
return (-1);
}
int i;
grand *r = GRAND_R(me);
if (!PyArg_ParseTuple(arg, "i:seedint", &i) ||
- checkop(r, GRAND_SEEDINT, "seedint"))
+ grand_check(me) || checkop(r, GRAND_SEEDINT, "seedint"))
goto end;
r->ops->misc(r, GRAND_SEEDINT, i);
RETURN_ME;
uint32 u;
grand *r = GRAND_R(me);
if (!PyArg_ParseTuple(arg, "O&:seedword", convu32, &u) ||
- checkop(r, GRAND_SEEDUINT32, "seedword"))
+ grand_check(me) || checkop(r, GRAND_SEEDUINT32, "seedword"))
goto end;
r->ops->misc(r, GRAND_SEEDUINT32, u);
RETURN_ME;
Py_ssize_t n;
grand *r = GRAND_R(me);
if (!PyArg_ParseTuple(arg, "s#:seedblock", &p, &n) ||
- checkop(r, GRAND_SEEDBLOCK, "seedblock"))
+ grand_check(me) || checkop(r, GRAND_SEEDBLOCK, "seedblock"))
goto end;
r->ops->misc(r, GRAND_SEEDBLOCK, p, (size_t)n);
RETURN_ME;
mp *xx;
grand *r = GRAND_R(me);
if (!PyArg_ParseTuple(arg, "O:seedmp", &x) ||
- checkop(r, GRAND_SEEDMP, "seedmp") ||
+ grand_check(me) || checkop(r, GRAND_SEEDMP, "seedmp") ||
(xx = getmp(x)) == 0)
goto end;
r->ops->misc(r, GRAND_SEEDMP, xx);
grand *rr = &rand_global;
if (!PyArg_ParseTupleAndKeywords(arg, kw, "|O&:seedrand", kwlist,
convgrand, &rr) ||
- checkop(r, GRAND_SEEDRAND, "seedrand"))
+ grand_check(me) || checkop(r, GRAND_SEEDRAND, "seedrand"))
goto end;
r->ops->misc(r, GRAND_SEEDRAND, rr);
RETURN_ME;
PyObject *rc;
if (!PyArg_ParseTuple(arg, "s#:mask", &p, &sz)) return (0);
+ if (grand_check(me)) return (0);
rc = bytestring_pywrap(0, sz);
q = PyString_AS_STRING(rc);
GR_FILL(r, q, sz);
static void grand_pydealloc(PyObject *me)
{
grand_pyobj *g = (grand_pyobj *)me;
- if (g->f & f_freeme)
- GR_DESTROY(g->r);
+ if ((g->f & f_freeme) && g->r) GR_DESTROY(g->r);
FREEOBJ(me);
}
static PyObject *grget_name(PyObject *me, void *hunoz)
- { return (PyString_FromString(GRAND_R(me)->ops->name)); }
+ { return (grand_check(me) ? 0 : PyString_FromString(GRAND_R(me)->ops->name)); }
static PyObject *grget_cryptop(PyObject *me, void *hunoz)
- { return (getbool(GRAND_R(me)->ops->f & GRAND_CRYPTO)); }
+ { return (grand_check(me) ? 0 : getbool(GRAND_R(me)->ops->f & GRAND_CRYPTO)); }
static PyGetSetDef grand_pygetset[] = {
#define GETSETNAME(op, name) gr##op##_##name
typedef grand *gcrand_func(const void *, size_t sz);
typedef grand *gcirand_func(const void *, size_t sz, uint32);
typedef grand *gcnrand_func(const void *, size_t sz, const void *);
+typedef grand *gcshakerand_func(const void *, size_t,
+ const void *, size_t,
+ const void *, size_t);
+typedef grand *gcshafuncrand_func(const void *, size_t,
+ const void *, size_t);
+typedef grand *gckmacrand_func(const void *, size_t, const void *, size_t);
typedef struct gccrand_info {
const char *name;
const octet *keysz;
gcrand_func *func;
} gccrand_info;
-#define RNGF_INT 1u
-#define RNGF_NONCE 2u
-#define RNGF_LATIN 4u
+#define RNGF_MASK 255u
+
+enum {
+ RNG_PLAIN = 0,
+ RNG_SEAL,
+ RNG_LATIN,
+ RNG_SHAKE,
+ RNG_KMAC
+};
typedef struct gccrand_pyobj {
PyHeapTypeObject ty;
return (0);
}
+static PyObject *gcshakyrand_pynew(PyTypeObject *ty,
+ PyObject *arg, PyObject *kw)
+{
+ const gccrand_info *info = GCCRAND_INFO(ty);
+ static char *kwlist_shake[] = { "key", "func", "perso", 0 };
+ static char *kwlist_func[] = { "key", "perso", 0 };
+ char *k, *f = 0, *p = 0;
+ Py_ssize_t ksz, fsz = 0, psz = 0;
+
+ if ((info->f&RNGF_MASK) == RNG_SHAKE
+ ? !PyArg_ParseTupleAndKeywords(arg, kw, "s#|s#s#:new", kwlist_shake,
+ &k, &ksz, &f, &fsz, &p, &psz)
+ : !PyArg_ParseTupleAndKeywords(arg, kw, "s#|s#:new", kwlist_func,
+ &k, &ksz, &p, &psz))
+ goto end;
+ if (keysz(ksz, info->keysz) != ksz) VALERR("bad key length");
+ return (grand_dopywrap(ty,
+ (info->f&RNGF_MASK) == RNG_SHAKE
+ ? ((gcshakerand_func *)info->func)(f, fsz,
+ p, psz,
+ k, ksz)
+ : ((gcshafuncrand_func *)info->func)(p, psz,
+ k, ksz),
+ f_freeme));
+end:
+ return (0);
+}
+
static PyObject *gccrand_pywrap(const gccrand_info *info)
{
gccrand_pyobj *g = newtype(gccrand_pytype, 0, info->name);
g->info = info;
g->ty.ht_type.tp_basicsize = sizeof(grand_pyobj);
- g->ty.ht_type.tp_base =
- (info->f & RNGF_LATIN) ? gclatinrand_pytype : gcrand_pytype;
+ switch (info->f&RNGF_MASK) {
+ case RNG_LATIN: g->ty.ht_type.tp_base = gclatinrand_pytype; break;
+ default: g->ty.ht_type.tp_base = gcrand_pytype; break;
+ }
Py_INCREF(g->ty.ht_type.tp_base);
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;
- if (info->f & RNGF_INT) g->ty.ht_type.tp_new = gcirand_pynew;
- else if (info->f & RNGF_NONCE) g->ty.ht_type.tp_new = gcnrand_pynew;
- else g->ty.ht_type.tp_new = gcrand_pynew;
+ switch (info->f&RNGF_MASK) {
+ case RNG_LATIN: g->ty.ht_type.tp_new = gcnrand_pynew; break;
+ case RNG_SEAL: g->ty.ht_type.tp_new = gcirand_pynew; break;
+ case RNG_SHAKE: case RNG_KMAC:
+ g->ty.ht_type.tp_new = gcshakyrand_pynew; break;
+ default: g->ty.ht_type.tp_new = gcrand_pynew; break;
+ }
typeready(&g->ty.ht_type);
return ((PyObject *)g);
}
static int bbsset_x(PyObject *me, PyObject *val, void *hunoz)
{
- mp *x = 0; grand *r = GRAND_R(me); int rc = -1; if (!x) NIERR("__del__");
+ mp *x = 0; grand *r = GRAND_R(me); int rc = -1; if (!val) NIERR("__del__");
if ((x = getmp(val)) == 0) goto end; r->ops->misc(r, BBS_SET, x); rc = 0;
end: mp_drop(x); return (rc);
}
{
bbs_priv bp = { 0 };
mp *x = MP_TWO;
- pgev evt = { 0 };
+ struct excinfo exc = EXCINFO_INIT;
+ pypgev evt = { { 0 } };
unsigned nbits, n = 0;
grand *r = &rand_global;
char *kwlist[] = { "class", "nbits", "event", "rng", "nsteps", "seed", 0 };
bbspriv_pyobj *rc = 0;
+ evt.exc = &exc;
if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO&|O&O&O&O&:generate", kwlist,
&me, convuint, &nbits, convpgev, &evt,
convgrand, &r, convuint, &n, convmp, &x))
goto end;
- if (bbs_gen(&bp, nbits, r, n, evt.proc, evt.ctx))
- VALERR("prime genration failed");
+ if (bbs_gen(&bp, nbits, r, n, evt.ev.proc, evt.ev.ctx))
+ PGENERR(&exc);
rc = PyObject_New(bbspriv_pyobj, bbspriv_pytype);
rc->gr.r = bbs_rand(bp.n, x);
rc->gr.f = f_freeme;
static PyMethodDef methods[] = {
#define METHNAME(name) meth_##name
KWMETH(_BBSPriv_generate, "\
-generate(NBITS, [event = pgen_nullev, rng = rand, nsteps = 0, seed = 2])")
+generate(NBITS, [event = pgen_nullev], [rng = rand],\n\
+ [nsteps = 0], [seed = 2]) -> R")
#undef METHNAME
{ 0 }
};
~mdw / catacomb-python / blobdiff