Message authentication algorithm

MAC Algorithms

MAA is a software oriented dedicated MAC algorithm with a 64-bit key and a 32-bit result.

The Message Authentication Algorithm (MAA) was published in 1983 by Davies and Clayden in response to a request of the UK Bankers Automated Clearing Services (BACS) [1, 2]. In 1987 it became a part of the ISO 8731 banking standard [3]; this standard was revised in 1992 and withdrawn in 2002.

MAA is software orientedMAC Algorithm with a 64-bit key and a 32-bit result; as MAA was designed for mainframes in the 1980s, its performance on 32-bit processors is excellent (about five times faster than DES).

A serious concern is that a 64-bit key no longer offers an adequate security level againstexhaustive key search. Moreover, several undesirable properties of MAA have been identified by Preneel et al. in 1997 [4]; all these attacks exploit internal collisions (cf. MAC Algorithms). A forgery attack...

Authors and Affiliations

1. Department of Electrical Engineering-ESAT/COSIC, Katholieke Universiteit Leuven and IBBT, Kasteelpark Arenberg 10 Bus 2446, B-3001, Leuven-Heverlee, Belgium

   Bart Preneel Prof.

Editors and Affiliations

1. Department of Mathematics and Computing Science, Eindhoven University of Technology, 5600 MB, Eindhoven, The Netherlands

   Henk C. A. van Tilborg

2. Center for Secure Information Systems, George Mason University, Fairfax, VA, 22030-4422, USA

   Sushil Jajodia

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