Towards a Backup Cipher for the Advanced Encryption Standard (AES)
Cyril Onwubiko · Research Repository (Kingston University London) · 2006
A backup cipher to the Advanced Encryption Standard is reviewed while a Twofish is recommended as the backup algorithm. The AES and Twofish are compared vis -à-vis National Institute of Standards and Technology’s selection criteria of the AES – general security, implementation of security, software performance, smart card performance, hardware performance and design features as we show that Twofish complements the AES. General Security and its implementation are the most significant aspects of the selection criteria; and it is shown that Twofish is a stronger cipher.