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Block Information

  Name MARS
  Designers IBM
  Publish Date 1998
  Certification AES Finalist
  Key Size 128, 192, or 256 bits
  Block Size 128 bits
  Structure Type-3 Feistel Network
  Rounds 32


In Cryptography , MARS is a Block Cipher that was IBM 's submission to the Advanced Encryption Standard Process . MARS was selected as an AES finalist in August 1999, after the AES2 conference in March 1999, where it was voted as the fifth and last finalist algorithm.

The MARS design team included Don Coppersmith , who had been involved in the creation of the previous Data Encryption Standard (DES) twenty years earlier. The project was specifically designed to resist future advances in cryptography by adopting a layered, compartmentalized approach.

MARS has a 128-bit .


SECURITY ANALYSIS

always set to the value 1. Thus, there are always two inputs that are unchanged through the multiplication process regardless of the subkey, and two others which have fixed output regardless of the subkey .


NOTES AND REFERENCES



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