twofish_basic_block_encryption_decryption_quickstart.py

1from twofish import Twofish
2
3# Initialize the Twofish cipher with a key
4# Keys can be 16, 24, or 32 bytes long
5key = b'static_secret_key'
6T = Twofish(key)
7
8# Data to encrypt must be a single 16-byte block
9# Note: In production, use a padding scheme and mode of operation (like CBC)
10plaintext = b'16_byte_message_'
11
12# Encrypt the block
13ciphertext = T.encrypt(plaintext)
14print(f"Ciphertext (hex): {ciphertext.hex()}")
15
16# Decrypt the block
17decrypted_data = T.decrypt(ciphertext)
18print(f"Decrypted: {decrypted_data.decode('utf-8')}")