International Association for Cryptologic Research

International Association
for Cryptologic Research

IACR News item: 30 April 2014

Xi-Jun Lin, Lin Sun
ePrint Report ePrint Report
A fair contract-signing protocol is an important mechanism which allows two participants to sign a digital contract via the public computer networks in a fair way. Based on the RSA signature scheme and Σ-protocol, we propose a new contract-signing protocol in this paper. The proposed protocol is not only fair and optimistic, but also efficient and abuse-free. Moreover, security and efficiency analysis are provided.

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