Wallet Databases with Observers
CRYPTO '92 Proceedings of the 12th Annual International Cryptology Conference on Advances in Cryptology
Modified Maurer-Yacobi`s scheme and its applications
ASIACRYPT '92 Proceedings of the Workshop on the Theory and Application of Cryptographic Techniques: Advances in Cryptology
On the Security of Joint Signature and Encryption
EUROCRYPT '02 Proceedings of the International Conference on the Theory and Applications of Cryptographic Techniques: Advances in Cryptology
Off-Line Fair Payment Protocols Using Convertible Signatures
ASIACRYPT '98 Proceedings of the International Conference on the Theory and Applications of Cryptology and Information Security: Advances in Cryptology
CRYPTO '89 Proceedings of the 9th Annual International Cryptology Conference on Advances in Cryptology
EUROCRYPT '09 Proceedings of the 28th Annual International Conference on Advances in Cryptology: the Theory and Applications of Cryptographic Techniques
The exact security of digital signatures-how to sign with RSA and Rabin
EUROCRYPT'96 Proceedings of the 15th annual international conference on Theory and application of cryptographic techniques
Public-key cryptosystems based on composite degree residuosity classes
EUROCRYPT'99 Proceedings of the 17th international conference on Theory and application of cryptographic techniques
Confirmer signature schemes secure against adaptive adversaries
EUROCRYPT'00 Proceedings of the 19th international conference on Theory and application of cryptographic techniques
On the generic and efficient constructions of secure designated confirmer signatures
PKC'07 Proceedings of the 10th international conference on Practice and theory in public-key cryptography
Designated confirmer signatures revisited
TCC'07 Proceedings of the 4th conference on Theory of cryptography
Invisibility and anonymity of undeniable and confirmer signatures
CT-RSA'03 Proceedings of the 2003 RSA conference on The cryptographers' track
Efficient non-interactive proof systems for bilinear groups
EUROCRYPT'08 Proceedings of the theory and applications of cryptographic techniques 27th annual international conference on Advances in cryptology
Efficient designated confirmer signatures without random oracles or general zero-knowledge proofs
ASIACRYPT'05 Proceedings of the 11th international conference on Theory and Application of Cryptology and Information Security
Non-interactive zero-knowledge from homomorphic encryption
TCC'06 Proceedings of the Third conference on Theory of Cryptography
A framework for constructing convertible undeniable signatures
ProvSec'10 Proceedings of the 4th international conference on Provable security
Designated confirmer signatures with unified verification
IMACC'11 Proceedings of the 13th IMA international conference on Cryptography and Coding
Generic constructions for verifiable signcryption
ICISC'11 Proceedings of the 14th international conference on Information Security and Cryptology
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Generic constructions of designated confirmer signatures follow one of the following two strategies; either produce a digital signature on the message to be signed, then encrypt the resulting signature, or produce a commitment on the message, encrypt the string used to generate the commitment and finally sign the latter. We study the second strategy by determining the exact security property needed in the encryption to achieve secure constructions. This study infers the exclusion of a useful type of encryption from the design due to an intrinsic weakness in the paradigm. Next, we propose a simple method to remediate to this weakness and we get efficient constructions which can be used with any digital signature.