static PyObject *
py_sha3_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
{
SHA3object *self = NULL;
Py_buffer buf = {NULL, NULL};
HashReturn res;
PyObject *data = NULL;
if (!_PyArg_NoKeywords(_PyType_Name(type), kwargs)) {
return NULL;
}
if (!PyArg_UnpackTuple(args, _PyType_Name(type), 0, 1, &data)) {
return NULL;
}
self = newSHA3object(type);
if (self == NULL) {
goto error;
}
if (type == &SHA3_224type) {
res = Keccak_HashInitialize_SHA3_224(&self->hash_state);
} else if (type == &SHA3_256type) {
res = Keccak_HashInitialize_SHA3_256(&self->hash_state);
} else if (type == &SHA3_384type) {
res = Keccak_HashInitialize_SHA3_384(&self->hash_state);
} else if (type == &SHA3_512type) {
res = Keccak_HashInitialize_SHA3_512(&self->hash_state);
#ifdef PY_WITH_KECCAK
} else if (type == &Keccak_224type) {
res = Keccak_HashInitialize(&self->hash_state, 1152, 448, 224, 0x01);
} else if (type == &Keccak_256type) {
res = Keccak_HashInitialize(&self->hash_state, 1088, 512, 256, 0x01);
} else if (type == &Keccak_384type) {
res = Keccak_HashInitialize(&self->hash_state, 832, 768, 384, 0x01);
} else if (type == &Keccak_512type) {
res = Keccak_HashInitialize(&self->hash_state, 576, 1024, 512, 0x01);
#endif
} else if (type == &SHAKE128type) {
res = Keccak_HashInitialize_SHAKE128(&self->hash_state);
} else if (type == &SHAKE256type) {
res = Keccak_HashInitialize_SHAKE256(&self->hash_state);
} else {
PyErr_BadInternalCall();
goto error;
}
if (data) {
GET_BUFFER_VIEW_OR_ERROR(data, &buf, goto error);
if (buf.len >= HASHLIB_GIL_MINSIZE) {
/* invariant: New objects can't be accessed by other code yet,
* thus it's safe to release the GIL without locking the object.
*/
Py_BEGIN_ALLOW_THREADS
res = SHA3_process(&self->hash_state, buf.buf, buf.len * 8);
Py_END_ALLOW_THREADS
}
else {
static void BLS_HASHIT(ECP_ZZZ *P,char *m)
{
int i;
sha3 hs;
char h[MODBYTES_XXX];
octet HM= {0,sizeof(h),h};
SHA3_init(&hs,SHAKE256);
for (i=0;m[i]!=0;i++) SHA3_process(&hs,m[i]);
SHA3_shake(&hs,HM.val,MODBYTES_XXX);
HM.len=MODBYTES_XXX;
ECP_ZZZ_mapit(P,&HM);
}
static PyObject *
py_sha3_new_impl(PyTypeObject *type, PyObject *data)
/*[clinic end generated code: output=8d5c34279e69bf09 input=d7c582b950a858b6]*/
{
SHA3object *self = NULL;
Py_buffer buf = {NULL, NULL};
HashReturn res;
self = newSHA3object(type);
if (self == NULL) {
goto error;
}
if (type == &SHA3_224type) {
res = Keccak_HashInitialize_SHA3_224(&self->hash_state);
} else if (type == &SHA3_256type) {
res = Keccak_HashInitialize_SHA3_256(&self->hash_state);
} else if (type == &SHA3_384type) {
res = Keccak_HashInitialize_SHA3_384(&self->hash_state);
} else if (type == &SHA3_512type) {
res = Keccak_HashInitialize_SHA3_512(&self->hash_state);
#ifdef PY_WITH_KECCAK
} else if (type == &Keccak_224type) {
res = Keccak_HashInitialize(&self->hash_state, 1152, 448, 224, 0x01);
} else if (type == &Keccak_256type) {
res = Keccak_HashInitialize(&self->hash_state, 1088, 512, 256, 0x01);
} else if (type == &Keccak_384type) {
res = Keccak_HashInitialize(&self->hash_state, 832, 768, 384, 0x01);
} else if (type == &Keccak_512type) {
res = Keccak_HashInitialize(&self->hash_state, 576, 1024, 512, 0x01);
#endif
} else if (type == &SHAKE128type) {
res = Keccak_HashInitialize_SHAKE128(&self->hash_state);
} else if (type == &SHAKE256type) {
res = Keccak_HashInitialize_SHAKE256(&self->hash_state);
} else {
PyErr_BadInternalCall();
goto error;
}
if (data) {
GET_BUFFER_VIEW_OR_ERROR(data, &buf, goto error);
#ifdef WITH_THREAD
if (buf.len >= HASHLIB_GIL_MINSIZE) {
/* invariant: New objects can't be accessed by other code yet,
* thus it's safe to release the GIL without locking the object.
*/
Py_BEGIN_ALLOW_THREADS
res = SHA3_process(&self->hash_state, buf.buf, buf.len * 8);
Py_END_ALLOW_THREADS
}
else {
PyErr_BadInternalCall();
goto error;
}
if (data) {
GET_BUFFER_VIEW_OR_ERROR(data, &buf, goto error);
if (buf.len >= HASHLIB_GIL_MINSIZE) {
/* invariant: New objects can't be accessed by other code yet,
* thus it's safe to release the GIL without locking the object.
*/
Py_BEGIN_ALLOW_THREADS
res = SHA3_process(&self->hash_state, buf.buf, buf.len * 8);
Py_END_ALLOW_THREADS
}
else {
res = SHA3_process(&self->hash_state, buf.buf, buf.len * 8);
}
if (res != SUCCESS) {
PyErr_SetString(PyExc_RuntimeError,
"internal error in SHA3 Update()");
goto error;
}
PyBuffer_Release(&buf);
}
return (PyObject *)self;
error:
if (self) {
Py_DECREF(self);
}
