Attacks on MacDES MAC algorithm
Don Coppersmith, Chris J. Mitchell · Electronics Letters · 1999
Two new attacks are given on a cipher block chaining-message authentication code algorithm which is in the final stages of being standardised as MAC algorithm 4 in ISO/IEC FDIS 9797-1. The attacks are significantly more efficient than previously known attacks, which means that the inclusion of this scheme in the standard will need to be reconsidered.