CAST-256

CAST-256 is a symmetric key block cipher that was designed by Carlisle Adams and Stafford Tavares. It was developed as part of the CAST encryption algorithm family. CAST-256 operates on 128-bit blocks of data and supports variable key lengths of up to 256 bits. Key features of CAST-256 include: 1. **Block Size**: It processes data in 128-bit blocks.