Concurrently-Secure Blind Signatures without Random Oracles or Setup Assumptions

C. Hazay, J. Katz, C. Y. Koo, Y. Lindell

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


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 trusted setup assumption such as a common reference string. Along the way, we also introduce new definitions of security for blind signature schemes.
Original languageAmerican English
Title of host publicationTCC
StatePublished - 2007

Bibliographical note

Place of conference:Netherlands


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