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» On the Security of Some Proxy Blind Signature Schemes

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TCC
2007
Springer

125views Cryptology» more TCC 2007»

Concurrently-Secure Blind Signatures Without Random Oracles or Setup Assumptions

14 years 1 months ago

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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 crypto...

Carmit Hazay, Jonathan Katz, Chiu-Yuen Koo, Yehuda...

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IJNSEC
2006

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Security Analysis of Some Batch Verifying Signatures from Pairings

13 years 7 months ago

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Batch verification can provide large computational savings when multiple signatures are verified together. Recently, some batch verifying signature schemes have been proposed from...

Tianjie Cao, Dongdai Lin, Rui Xue

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EUROCRYPT
2006
Springer

128views Cryptology» more EUROCRYPT 2006»

Sequential Aggregate Signatures and Multisignatures Without Random Oracles

13 years 11 months ago

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We present the first aggregate signature, the first multisignature, and the first verifiably encrypted signature provably secure without random oracles. Our constructions derive f...

Steve Lu, Rafail Ostrovsky, Amit Sahai, Hovav Shac...

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ICICS
2003
Springer

93views Communications» more ICICS 2003»

A Forward-Secure Blind Signature Scheme Based on the Strong RSA Assumption

14 years 24 days ago