def __init__(self):
MatasanoChallenge.__init__(self)
self.plaintext = Base64Decoder().decode(self.PLAINTEXT)
def value(self):
ciphertext = Base64Decoder().decode_file(self.FILE)
return AES(self.KEY).decrypt(ciphertext, mode=CBC(self.IV)).bytes()
def value(self):
key = 'YELLOW SUBMARINE'
ciphertext = Base64Decoder().decode_file(self.FILE)
return AES(key).decrypt(ciphertext, mode=ECB()).bytes()
def __init__(self):
MatasanoChallenge.__init__(self)
ciphertext = Base64Decoder().decode_file(self.FILE)
self.plaintext = AES(self.KEY).decrypt(ciphertext, mode=ECB()).bytes()
def expected_value(self):
decoded_lines = Base64Decoder().decode_file_lines(self.ANSWER_FILE)
return Concatenation(decoded_lines).value()
def _choose_plaintext(self):
plaintexts = FileLines(self.INPUT_FILE).value()
plaintext = random.choice(plaintexts)
return Base64Decoder().decode(plaintext)
def value(self):
plaintexts = Base64Decoder().decode_file_lines(self.FILE)
ciphertexts = self._encrypt(plaintexts)
return FixedNonceCTRDecrypter().decrypt(ciphertexts)
def value(self):
decoded_content = Base64Decoder().decode_file(self.FILE)
return RepeatingKeyXORDecrypter().decrypt(decoded_content)
def _decode_trailing_string(self):
string = self._trailing_string()
return Base64Decoder().decode(string)