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Concurrently-secure blind signatures without random oracles or setup assumptions

By Carmit Hazay, Jonathan Katz, Chiu-yuen Koo and Yehuda Lindell

Abstract

Abstract. We show a new protocol for blind signatures in which security is preserved even under arbitrarily-many concurrent executions. The protocol can be based on standard cryptographic assumptions and is the first to be proven secure in a concurrent setting (under any assumptions) without random oracles or a common reference string. Along the way, we also introduce new definitions of security for blind signature schemes

Year: 2007
OAI identifier: oai:CiteSeerX.psu:10.1.1.134.3323
Provided by: CiteSeerX
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