The Key Expansion Module is common for both the Encrypter and Decrypter module. III. B.TOTAL OVERVIEW OF DESIGN In standard AES algorithm, there are four steps like SubByte, ShiftRow, MixColumn and ...

AES-256 uses 14 rounds of encryption. For every round, the scheduled round key is broken into a similar byte array and applied to the original block using an XOR operation. The bytes in the block ...

Co-designed by Verifone, AES DUKPT is a new security key management standard that was approved as an American National Standard in October 2017 by the Accredited Standards Committee X9 (ASC X9).