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 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 {
int SHAKE256(const unsigned char *dataIn, size_t nBitsIn, unsigned char *md, int nOutBytes)
{
Keccak_HashInstance h;
if (md == NULL || nOutBytes == 0) {
return 0;
}
if (nOutBytes > SHAKE_MAX_BITS / 8) {
nOutBytes = SHAKE_MAX_BITS / 8;
}
Keccak_HashInitialize_SHAKE256(&h);
Keccak_HashUpdate(&h, dataIn, (DataLength)nBitsIn);
Keccak_HashFinal(&h, NULL);
Keccak_HashSqueeze(&h, md, nOutBytes * 8);
return nOutBytes;
}
static PyObject *
SHA3_init(SHAobject *self, PyObject *args)
{
int hashbitlen;
int outputlen;
if (!PyArg_ParseTuple(args, "ii", &hashbitlen, &outputlen))
return NULL;
self->hashbitlen = hashbitlen;
self->outputlen = outputlen;
switch (hashbitlen) {
case 224:
Keccak_HashInitialize_SHA3_224(&self->state);
break;
case 256:
Keccak_HashInitialize_SHA3_256(&self->state);
break;
case 384:
Keccak_HashInitialize_SHA3_384(&self->state);
break;
case 512:
Keccak_HashInitialize_SHA3_512(&self->state);
break;
// HACK: This is pretty ugly :-)
case 10128:
Keccak_HashInitialize_SHAKE128(&self->state);
break;
case 10256:
Keccak_HashInitialize_SHAKE256(&self->state);
break;
};
Py_INCREF(Py_None);
return Py_None;
}