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Paper: Cryptanalysis of the Improved Cellular Message Encryption Algorithm

Authors: Thomas Chardin Raphaël Marinier URL: http://eprint.iacr.org/2008/445 Search ePrint Search Google This paper analyzes the Improved Cellular Message Encryption Algorithm (CMEA-I) which is an improved version of the Telecommunication Industry Association's Cellular Message Encryption Algorithm (CMEA). We present a chosen-plaintext attack of CMEA-I which requires less than 850 plaintexts in its adaptive version. This demonstrates that the improvements made over CMEA are ineffective to thwart such attacks and confirms that the security of CMEA and its variants must be reconsidered from the beginning.
BibTeX
@misc{eprint-2008-18065,
title={Cryptanalysis of the Improved Cellular Message Encryption Algorithm},
booktitle={IACR Eprint archive},
keywords={secret-key cryptography / block ciphers, cryptanalysis},
url={http://eprint.iacr.org/2008/445},
note={ raphael.marinier@polytechnique.edu 14172 received 18 Oct 2008, last revised 20 Oct 2008},
author={Thomas Chardin and Raphaël Marinier},
year=2008
}