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A Large Term Rewrite System Modelling a Pioneering Cryptographic Algorithm

Hubert Garavel 1 Lina Marsso 1 
1 CONVECS - Construction of verified concurrent systems
Inria Grenoble - Rhône-Alpes, LIG - Laboratoire d'Informatique de Grenoble
Abstract : We present a term rewrite system that formally models the Message Authenticator Algorithm (MAA), which was one of the first cryptographic functions for computing a Message Authentication Code and was adopted, between 1987 and 2001, in international standards (ISO 8730 and ISO 8731-2) to ensure the authenticity and integrity of banking transactions. Our term rewrite system is large (13 sorts, 18 constructors, 644 non-constructors, and 684 rewrite rules), confluent, and terminating. Implementations in thirteen different languages have been automatically derived from this model and used to validate 200 official test vectors for the MAA.
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Submitted on : Friday, April 21, 2017 - 4:45:46 PM
Last modification on : Wednesday, July 6, 2022 - 4:21:08 AM
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Hubert Garavel, Lina Marsso. A Large Term Rewrite System Modelling a Pioneering Cryptographic Algorithm. 2nd Workshop on Models for Formal Analysis of Real Systems, Apr 2017, Uppsala, Sweden. pp.129 - 183, ⟨10.4204/EPTCS.244.6⟩. ⟨hal-01511859⟩



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