Security without identification: transaction systems to make big brother obsolete
Communications of the ACM
Journal of the ACM (JACM)
CCS '99 Proceedings of the 6th ACM conference on Computer and communications security
Partial revelation of certified identity
Proceedings of the fourth working conference on smart card research and advanced applications on Smart card research and advanced applications
SAC '99 Proceedings of the 6th Annual International Workshop on Selected Areas in Cryptography
A Practical Public Key Cryptosystem Provably Secure Against Adaptive Chosen Ciphertext Attack
CRYPTO '98 Proceedings of the 18th 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
Tamper Resistance Mechanisms for Secure, Embedded Systems
VLSID '04 Proceedings of the 17th International Conference on VLSI Design
Efficient attributes for anonymous credentials
Proceedings of the 15th ACM conference on Computer and communications security
EUROCRYPT'91 Proceedings of the 10th annual international conference on Theory and application of cryptographic techniques
A signature scheme with efficient protocols
SCN'02 Proceedings of the 3rd international conference on Security in communication networks
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
P-signatures and noninteractive anonymous credentials
TCC'08 Proceedings of the 5th conference on Theory of cryptography
Low-Cost cryptography for privacy in RFID systems
CARDIS'06 Proceedings of the 7th IFIP WG 8.8/11.2 international conference on Smart Card Research and Advanced Applications
A cryptographic framework for the controlled release of certified data
SP'04 Proceedings of the 12th international conference on Security Protocols
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In this paper, we propose to replace the national identity card, currently used in many countries, by a personal device that allows its user to prove some binary statements about himself while minimizing personal information leakage. The privacy of the user is protected through the use of anonymous credentials which allows him to prove binary statements about himself to another entity without having to disclose his identity or any unnecessary information. The proposed scheme also prevents the possibility of tracing the user, even if he proves several times the same statement (unlinkability property). A tamper-proof smartcard is used to store the personal information of the user thus protecting his privacy and preventing the risks of forgery at the same time. The user identifies himself to the card via biometrics thus forbidding an unauthorized use in the situation where the card is stolen or lost. Two practical implementations of the privacy-preserving identity card are described and discussed.