The RC6 encryption algorithm (AES candidate) (Menu Crypt/Decrypt \ Symmetric (modern) \ Further)

The RC6 encryption algorithm works with a variable block length e.g. 128 bits, and a variable key length e.g. 128, 192 and 256 bits.

The key is entered in the Key entry dialog.

CrypTool contains a tool which performs a Brute-force attack on the RC6 encryption algorithm.