Random oracles are practical: a paradigm for designing efficient protocols
CCS '93 Proceedings of the 1st ACM conference on Computer and communications security
The random oracle methodology, revisited (preliminary version)
STOC '98 Proceedings of the thirtieth annual ACM symposium on Theory of computing
Fast Probabilistic Algorithms for Verification of Polynomial Identities
Journal of the ACM (JACM)
Probabilistic algorithms for sparse polynomials
EUROSAM '79 Proceedings of the International Symposiumon on Symbolic and Algebraic Computation
Provably Secure Partially Blind Signatures
CRYPTO '00 Proceedings of the 20th Annual International Cryptology Conference on Advances in Cryptology
Security of Blind Digital Signatures (Extended Abstract)
CRYPTO '97 Proceedings of the 17th Annual International Cryptology Conference on Advances in Cryptology
A Secure Three-Move Blind Signature Scheme for Polynomially Many Signatures
EUROCRYPT '01 Proceedings of the International Conference on the Theory and Application of Cryptographic Techniques: Advances in Cryptology
Provably Secure Blind Signature Schemes
ASIACRYPT '96 Proceedings of the International Conference on the Theory and Applications of Cryptology and Information Security: Advances in Cryptology
Provably Secure Fair Blind Signatures with Tight Revocation
ASIACRYPT '01 Proceedings of the 7th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
PKC '03 Proceedings of the 6th International Workshop on Theory and Practice in Public Key Cryptography: Public Key Cryptography
Short Signatures Without Random Oracles and the SDH Assumption in Bilinear Groups
Journal of Cryptology
Simulatable Adaptive Oblivious Transfer
EUROCRYPT '07 Proceedings of the 26th annual international conference on Advances in Cryptology
A Framework for Universally Composable Non-committing Blind Signatures
ASIACRYPT '09 Proceedings of the 15th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
Lower bounds for discrete logarithms and related problems
EUROCRYPT'97 Proceedings of the 16th annual international conference on Theory and application of cryptographic techniques
Concurrently-secure blind signatures without random oracles or setup assumptions
TCC'07 Proceedings of the 4th conference on Theory of cryptography
Separation results on the "one-more" computational problems
CT-RSA'08 Proceedings of the 2008 The Cryptopgraphers' Track at the RSA conference on Topics in cryptology
Equivocal blind signatures and adaptive UC-security
TCC'08 Proceedings of the 5th conference on Theory of cryptography
Discrete-Log-Based signatures may not be equivalent to discrete log
ASIACRYPT'05 Proceedings of the 11th international conference on Theory and Application of Cryptology and Information Security
Efficient blind signatures without random oracles
SCN'04 Proceedings of the 4th international conference on Security in Communication Networks
Efficient identity-based encryption without random oracles
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
On the impossibility of three-move blind signature schemes
EUROCRYPT'10 Proceedings of the 29th Annual international conference on Theory and Applications of Cryptographic Techniques
Round-optimal composable blind signatures in the common reference string model
CRYPTO'06 Proceedings of the 26th annual international conference on Advances in Cryptology
Efficient blind and partially blind signatures without random oracles
TCC'06 Proceedings of the Third conference on Theory of Cryptography
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Blind signatures are generated by means of a protocol between the signer and a user such that the signer can neither see the message being signed and nor learn any information on the signature being produced. Time/space complexity and security model (random oracle model versus standard model; sequential, parallel, or concurrent security) are commonly used to evaluate blind signature schemes. The paper presents the first round-optimal blind signatures without random oracles or non-interactive zero-knowledge proofs. The proposed blind signature scheme achieves concurrent security and perfect blindness while preserving the efficiency of computation and communication. A novel class of computational problems, called one-more-output (OMO) problems, is introduced to prove the unforgeability of the scheme. The paper states the corresponding lower bound of the OMO problem in the generic group model. Such a computational problem might be of independent interests in designing other cryptographic protocol and primitives. Copyright © 2011 John Wiley & Sons, Ltd. (Blind signature is the basis of many complex cryptographic systems including e-payment. The paper presents the first round-optimal blind signatures without random oracles or non-interactive zero-knowledge proofs. The proposed blind signature scheme achieves concurrent security and perfect blindness while preserving the efficiency of computation and communication.)