Security without identification: transaction systems to make big brother obsolete
Communications of the ACM
A secure and privacy-protecting protocol for transmitting personal information between organizations
Proceedings on Advances in cryptology---CRYPTO '86
A digital signature scheme secure against adaptive chosen-message attacks
SIAM Journal on Computing - Special issue on cryptography
Crowds: anonymity for Web transactions
ACM Transactions on Information and System Security (TISSEC)
Untraceable electronic mail, return addresses, and digital pseudonyms
Communications of the ACM
A method for obtaining digital signatures and public-key cryptosystems
Communications of the ACM
Design and implementation of the idemix anonymous credential system
Proceedings of the 9th ACM conference on Computer and communications security
SAC '99 Proceedings of the 6th Annual International Workshop on Selected Areas in Cryptography
On the Exact Security of Full Domain Hash
CRYPTO '00 Proceedings of the 20th Annual International Cryptology Conference on Advances in Cryptology
Payment Systems and Credential Mechanisms with Provable Security Against Abuse by Individuals
CRYPTO '88 Proceedings of the 8th Annual International Cryptology Conference on Advances in Cryptology
An Efficient System for Non-transferable Anonymous Credentials with Optional Anonymity Revocation
EUROCRYPT '01 Proceedings of the International Conference on the Theory and Application of Cryptographic Techniques: Advances in Cryptology
Self-Blindable Credential Certificates from the Weil Pairing
ASIACRYPT '01 Proceedings of the 7th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
A Practical and Provably Secure Coalition-Resistant Group Signature Scheme
CRYPTO '00 Proceedings of the 20th Annual International Cryptology Conference on Advances in Cryptology
Networked Cryptographic Devices Resilient to Capture
SP '01 Proceedings of the 2001 IEEE Symposium on Security and Privacy
Efficient, Self-Contained Handling of Identity in Peer-to-Peer Systems
IEEE Transactions on Knowledge and Data Engineering
New (t,n) threshold directed signature scheme with provable security
Information Sciences: an International Journal
Fair Traceable Multi-Group Signatures
Financial Cryptography and Data Security
Specification and enforcement of flexible security policy for active cooperation
Information Sciences: an International Journal
EUROCRYPT'95 Proceedings of the 14th annual international conference on Theory and application of cryptographic techniques
Privacy protection in PKIs: a separation-of-authority approach
WISA'06 Proceedings of the 7th international conference on Information security applications: PartI
Forward-secure identity-based signature: Security notions and construction
Information Sciences: an International Journal
Rational behavior in peer-to-peer profile obfuscation for anonymous keyword search
Information Sciences: an International Journal
Self-disclosure decision making based on intimacy and privacy
Information Sciences: an International Journal
Provably secure three party encrypted key exchange scheme with explicit authentication
Information Sciences: an International Journal
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Privacy preservation has become an essential requirement in today's computing environment; abuse based on anonymity and user-controlled pseudonyms is a serious problem. For prompt deployment in legacy information systems, it would be desirable to develop a new method in the standard paradigm. This paper investigates practical methods for privacy preservation with X.509 standard certificates by providing conditional traceability for both identity and attribute certificates in the legacy systems. We separate certificate authorities, one for verifying identities and the other for validating contents, in a blinded manner without requiring a trusted third party. We design a concrete method with its more generic and applicative extensions, and prove security formally. We also evaluate performance through rigorous experiments and discuss possible applications.