Zero-knowledge undeniable signatures (extended abstract)
EUROCRYPT '90 Proceedings of the workshop on the theory and application of cryptographic techniques on Advances in cryptology
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CRYPTO '90 Proceedings of the 10th Annual International Cryptology Conference on Advances in Cryptology
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CRYPTO '92 Proceedings of the 12th Annual International Cryptology Conference on Advances in Cryptology
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ASIACRYPT '98 Proceedings of the International Conference on the Theory and Applications of Cryptology and Information Security: Advances in Cryptology
FC '00 Proceedings of the 4th International Conference on Financial Cryptography
CRYPTO '89 Proceedings of the 9th Annual International Cryptology Conference on Advances in Cryptology
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Journal of Cryptology
Short Signatures Without Random Oracles and the SDH Assumption in Bilinear Groups
Journal of Cryptology
Universally Composable Undeniable Signature
ICALP '08 Proceedings of the 35th international colloquium on Automata, Languages and Programming, Part II
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CRYPTO 2008 Proceedings of the 28th Annual conference on Cryptology: Advances in Cryptology
INDOCRYPT '08 Proceedings of the 9th International Conference on Cryptology in India: Progress in Cryptology
Information Security and Cryptology
New RSA-Based (Selectively) Convertible Undeniable Signature Schemes
AFRICACRYPT '09 Proceedings of the 2nd International Conference on Cryptology in Africa: Progress in Cryptology
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ProvSec '09 Proceedings of the 3rd International Conference on Provable Security
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INDOCRYPT '09 Proceedings of the 10th International Conference on Cryptology in India: Progress in Cryptology
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EUROCRYPT'96 Proceedings of the 15th annual international conference on Theory and application of cryptographic techniques
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PKC'07 Proceedings of the 10th international conference on Practice and theory in public-key cryptography
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CT-RSA'03 Proceedings of the 2003 RSA conference on The cryptographers' track
(Convertible) undeniable signatures without random oracles
ICICS'07 Proceedings of the 9th international conference on Information and communications security
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EUROCRYPT'08 Proceedings of the theory and applications of cryptographic techniques 27th annual international conference on Advances in cryptology
New approach for selectively convertible undeniable signature schemes
ASIACRYPT'06 Proceedings of the 12th international conference on Theory and Application of Cryptology and Information Security
Short undeniable signatures without random oracles: the missing link
INDOCRYPT'05 Proceedings of the 6th international conference on Cryptology in India
3-Move undeniable signature scheme
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
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SCN'06 Proceedings of the 5th international conference on Security and Cryptography for Networks
PKC'06 Proceedings of the 9th international conference on Theory and Practice of Public-Key Cryptography
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IEEE Transactions on Information Theory
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ISC'11 Proceedings of the 14th international conference on Information security
ACISP'12 Proceedings of the 17th Australasian conference on Information Security and Privacy
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This paper shows some efficient and provably-secure convertible undeniable signature schemes (with both selective conversion and all conversion), in the standard model and discrete logarithm setting. They further satisfy unambiguity, which is traditionally required for anonymous signatures. Briefly, unambiguity means that it is hard to generate a (message, signature) pair which is valid for two different public-keys. In other words, our schemes can be viewed as anonymous signature schemes as well as convertible undeniable signature schemes. Besides other applications, we show that such schemes are very suitable for anonymous auction.