How to prove yourself: practical solutions to identification and signature problems
Proceedings on Advances in cryptology---CRYPTO '86
On blind signatures and perfect crimes
Computers and Security
Meta-ElGamal signature schemes
CCS '94 Proceedings of the 2nd ACM Conference on Computer and communications security
Trustee-based tracing extensions to anonymous cash and the making of anonymous change
Proceedings of the sixth annual ACM-SIAM symposium on Discrete algorithms
A method for obtaining digital signatures and public-key cryptosystems
Communications of the ACM
Handbook of Applied Cryptography
Handbook of Applied Cryptography
An Efficient Electronic Payment System Protecting Privacy
ESORICS '94 Proceedings of the Third European Symposium on Research in Computer Security
CRYPTO '88 Proceedings of the 8th Annual International Cryptology Conference on Advances in Cryptology
Non-Interactive Oblivious Transfer and Spplications
CRYPTO '89 Proceedings of the 9th Annual International Cryptology Conference on Advances in Cryptology
Untraceable Off-line Cash in Wallets with Observers (Extended Abstract)
CRYPTO '93 Proceedings of the 13th Annual International Cryptology Conference on Advances in Cryptology
ASIACRYPT '94 Proceedings of the 4th International Conference on the Theory and Applications of Cryptology: Advances in Cryptology
An Efficient Off-line Electronic Cash System Based On The Representation Problem.
An Efficient Off-line Electronic Cash System Based On The Representation Problem.
Fair Cryptosystems
Publicly verifiable secret sharing
EUROCRYPT'96 Proceedings of the 15th annual international conference on Theory and application of cryptographic techniques
EUROCRYPT'95 Proceedings of the 14th annual international conference on Theory and application of cryptographic techniques
Fair partially blind signatures
AFRICACRYPT'10 Proceedings of the Third international conference on Cryptology in Africa
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As the blind signature introduced by Chaum [10] does not reveal any information about the message or its signature, it has been used for providing the anonymity in secure electronic payment systems. Unfortunately, this perfect anonymity could be misused by criminals as blind signatures prevent linking the withdrawal of money and the payment made by the same customer. Therefore, we should provide publicly verifiable mechanism if it is required for the judge to trace the blackmailed messages. In this study, we propose a modified fair blind signature, which additionally provides the role of message recovery. After analyzing the existing meta-ElGamal scheme [12] suggested by Horster, the model of message recovery blind signature is considered at first. And we suggest a new fair blind signature based on the oblivious transfer protocol, with which a judge can verify its fairness. Proposed scheme can be advanced into the blind multi-signature and it is also applicable to the diverse payment applications.