def test():
s0 = "this is a test"
s1 = "wokka wokka!!!"
assert hamming_distance(s0, s1) == 37
text = base64_to_bytes(get_ciphertext())
result = decrypt_repeating_key(text)
def test():
unknown_string = "Um9sbGluJyBpbiBteSA1LjAKV2l0aCBteSByYWctdG9wIGRvd24gc28gbXkgaG"
unknown_string += "FpciBjYW4gYmxvdwpUaGUgZ2lybGllcyBvbiBzdGFuZGJ5IHdhdmluZyBqdXN0"
unknown_string += "IHRvIHNheSBoaQpEaWQgeW91IHN0b3A/IE5vLCBJIGp1c3QgZHJvdmUgYnkK"
unknown_bytes = base64_to_bytes(unknown_string)
oracle = get_encryption_oracle(unknown_bytes)
recovered_bytes = get_unknown_bytes(oracle)
assert recovered_bytes == unknown_bytes
recovered_bytes = get_unknown_bytes_with_rand_prefix(oracle)
assert recovered_bytes == unknown_bytes
def test():
key = "YELLOW SUBMARINE"#.encode("utf-8")
text = "ABCD"*64
encrypted = encrypt_CBC(key, text)
decrypted = decrypt_CBC(key, encrypted)
assert decrypted == text
with open("CBCmode.txt", "r") as datafile:
text = base64_to_bytes(datafile.read().strip())
decrypted = decrypt_CBC(key, text)
recrypted = encrypt_CBC(key, decrypted)
assert recrypted == text
def test(): text = "Um9sbGluJyBpbiBteSA1LjAKV2l0aCBteSByYWctdG9wIGRvd24gc28gbXkg" text+= "aGFpciBjYW4gYmxvdwpUaGUgZ2lybGllcyBvbiBzdGFuZGJ5IHdhdmluZyBq" text+= "dXN0IHRvIHNheSBoaQpEaWQgeW91IHN0b3A/IE5vLCBJIGp1c3QgZHJvdmUg" text+= "YnkK" text = base64_to_bytes(text)
def get_ciphertext():
with open("ECBmode.txt", "r") as datafile:
return base64_to_bytes(datafile.read().strip())
