Trusted Multiplexing of Cryptographic Protocols

Abstract. We present an analysis that determines when it is possible to multiplex a pair of cryptographic protocols. We present a transformation that improves the coverage of this analysis on common protocol formulations. We discuss the gap between the merely possible and the pragmatic through an optimization that informs a multiplexer. We also address the security ramifications of trusting external parties for this task and evaluate our work on a large repository of cryptographic protocols. We have formally verified this work using the Coq proof assistant.

Trusted Multiplexing of Cryptographic Protocols

Abstract. We present an analysis that determines when it is possible to multiplex a pair of cryptographic protocols. We present a transformation that improves the coverage of this analysis on common protocol formulations. We discuss the gap between the merely possible and the pragmatic through an optimization that informs a multiplexer. We also address the security ramifications of trusting external parties for this task and evaluate our work on a large repository of cryptographic protocols. We have formally verified this work using the Coq proof assistant.