Attacks on the DECT Authentication Mechanisms
نویسندگان
چکیده
Digital Enhanced Cordless Telecommunications (DECT) is a standard for connecting cordless telephones to a fixed telecommunications network over a short range. The cryptographic algorithms used in DECT are not publicly available. In this paper we reveal one of the two algorithms used by DECT, the DECT Standard Authentication Algorithm (DSAA). We give a very detailed security analysis of the DSAA including some very effective attacks on the building blocks used for DSAA as well as a common implementation error that can practically lead to a total break of DECT security. We also present a low cost attack on the DECT protocol, which allows an attacker to impersonate a base station and therefore listen to and reroute all phone calls made by a handset.
منابع مشابه
DECT Security Analysis
DECT is a standard for cordless phones. The intent of this thesis is to evaluate DECT security in a comprehensive way. To secure conversations over the air, DECT uses two proprietary algorithms, namely the DECT Standard Authentication Algorithm (DSAA) for authentication and key derivation, and the DECT Standard Cipher (DSC) for encryption. Both algorithms have been kept secret and were only ava...
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