def encrypt(self, plaintext):
"""Encrypt data with the key set at initialization.
The data to encrypt can be broken up in two or
more pieces and `encrypt` can be called multiple times.
That is, the statement:
>>> c.encrypt(a) + c.encrypt(b)
is equivalent to:
>>> c.encrypt(a+b)
This function does not add any padding to the plaintext.
:Parameters:
plaintext : bytes/bytearray/memoryview
The piece of data to encrypt.
The length must be multiple of the cipher block length.
:Return:
the encrypted data, as a byte string.
It is as long as *plaintext*.
"""
ciphertext = create_string_buffer(len(plaintext))
result = raw_ecb_lib.ECB_encrypt(self._state.get(),
c_uint8_ptr(plaintext), ciphertext,
c_size_t(len(plaintext)))
if result:
if result == 3:
raise ValueError(
"Data must be aligned to block boundary in ECB mode")
raise ValueError("Error %d while encrypting in ECB mode" % result)
return get_raw_buffer(ciphertext)
def encrypt(self, plaintext):
"""Encrypt data with the key set at initialization.
The data to encrypt can be broken up in two or
more pieces and `encrypt` can be called multiple times.
That is, the statement:
>>> c.encrypt(a) + c.encrypt(b)
is equivalent to:
>>> c.encrypt(a+b)
This function does not add any padding to the plaintext.
:Parameters:
plaintext : bytes/bytearray/memoryview
The piece of data to encrypt.
The length must be multiple of the cipher block length.
:Return:
the encrypted data, as a byte string.
It is as long as *plaintext*.
"""
ciphertext = create_string_buffer(len(plaintext))
result = raw_ecb_lib.ECB_encrypt(self._state.get(),
c_uint8_ptr(plaintext),
ciphertext,
c_size_t(len(plaintext)))
if result:
if result == 3:
raise ValueError("Data must be aligned to block boundary in ECB mode")
raise ValueError("Error %d while encrypting in ECB mode" % result)
return get_raw_buffer(ciphertext)