The Serpent encryption algorithm (AES candidate) (Menu Crypt/Decrypt \ Symmetric (modern) \ Further)

The Serpent encryption algorithm works with a block length of 128 bits and a key length of 256 bits. Any keys shorter than this are padded out to 256 bits.

The key is entered in the Key entry dialog.

CrypTool contains a tool which performs a Brute-force attack on the Serpent encryption algorithm.