def __init__(self, data=None):
state = VoidPointer()
result = _raw_keccak_lib.keccak_init(state.address_of(), c_size_t(64), 0x1F)
if result:
raise ValueError("Error %d while instantiating SHAKE256" % result)
self._state = SmartPointer(state.get(), _raw_keccak_lib.keccak_destroy)
self._is_squeezing = False
if data:
self.update(data)
def __init__(self, data=None):
state = VoidPointer()
result = _raw_keccak_lib.keccak_init(state.address_of(), c_size_t(32),
0x1F)
if result:
raise ValueError("Error %d while instantiating SHAKE128" % result)
self._state = SmartPointer(state.get(), _raw_keccak_lib.keccak_destroy)
self._is_squeezing = False
if data:
self.update(data)
def __init__(self, data, update_after_digest):
self._update_after_digest = update_after_digest
self._digest_done = False
state = VoidPointer()
result = _raw_keccak_lib.keccak_init(state.address_of(),
c_size_t(self.digest_size * 2),
0x06)
if result:
raise ValueError("Error %d while instantiating SHA-3/384" % result)
self._state = SmartPointer(state.get(), _raw_keccak_lib.keccak_destroy)
if data:
self.update(data)
def __init__(self, data, update_after_digest):
self._update_after_digest = update_after_digest
self._digest_done = False
state = VoidPointer()
result = _raw_keccak_lib.keccak_init(state.address_of(),
c_size_t(self.digest_size * 2),
0x06)
if result:
raise ValueError("Error %d while instantiating SHA-3/384"
% result)
self._state = SmartPointer(state.get(),
_raw_keccak_lib.keccak_destroy)
if data:
self.update(data)
def __init__(self, data, custom, capacity, function):
state = VoidPointer()
if custom or function:
prefix_unpad = _encode_str(function) + _encode_str(custom)
prefix = _bytepad(prefix_unpad, (1600 - capacity) // 8)
self._padding = 0x04
else:
prefix = None
self._padding = 0x1F # for SHAKE
result = _raw_keccak_lib.keccak_init(state.address_of(),
c_size_t(capacity // 8),
c_ubyte(24))
if result:
raise ValueError("Error %d while instantiating cSHAKE" % result)
self._state = SmartPointer(state.get(), _raw_keccak_lib.keccak_destroy)
self._is_squeezing = False
if prefix:
self.update(prefix)
if data:
self.update(data)