Cryptology ePrint Archive: Report 2008/093

New ID-based Fair Blind Signatures

Girraj Kumar Verma

Abstract: A blind signature is a cryptographic premitive in which a user can obtain a signature from the signer without revealing any information about message signature pair.Blind signatures are used in electronic payment systems, electronic voting machines etc.The anonymity can be misused by criminals by money laundering or by dubious money.To prevent these crimes, the idea of fair blind signature scheme was given by stadler et al.In fair blind signature scheme, there is a trusted third party judge who can provide a linking protocol to signer to link his view to the message signature pair.In this paper we are proposing some identity based fair blind signatures.

Category / Keywords: public-key cryptography / ID-based signature, Fair Blind signature, Blind signature, Oblibious transfer

Date: received 23 Feb 2008

Contact author: girrajv at gmail com

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Version: 20080303:123702 (All versions of this report)

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