The subliminal channel and digital signatures
Proc. of the EUROCRYPT 84 workshop on Advances in cryptology: theory and application of cryptographic techniques
Minimum disclosure proofs of knowledge
Journal of Computer and System Sciences - 27th IEEE Conference on Foundations of Computer Science October 27-29, 1986
Modern cryptology
A discrete logarithm implementation of perfect zero-knowledge blobs
Journal of Cryptology
Subliminal communication is easy using the DSA
EUROCRYPT '93 Workshop on the theory and application of cryptographic techniques on Advances in cryptology
Communications of the ACM
A Secure Subliminal Channel (?)
CRYPTO '85 Advances in Cryptology
Special Uses and Sbuses of the Fiat-Shamir Passport Protocol
CRYPTO '87 A Conference on the Theory and Applications of Cryptographic Techniques on Advances in Cryptology
Abuses in Cryptography and How to Fight Them
CRYPTO '88 Proceedings of the 8th Annual International Cryptology Conference on Advances in Cryptology
How to (Really) Share a Secret
CRYPTO '88 Proceedings of the 8th Annual International Cryptology Conference on Advances in Cryptology
Discrete-Log With Compressible Exponents
CRYPTO '90 Proceedings of the 10th Annual International Cryptology Conference on Advances in Cryptology
Secret-Key Agreement without Public-Key Cryptography
CRYPTO '93 Proceedings of the 13th Annual International Cryptology Conference on Advances in Cryptology
Failsafe Key Escrow Systems (Extended Abstract)
Failsafe Key Escrow Systems (Extended Abstract)
Verifiable secret sharing and achieving simultaneity in the presence of faults
SFCS '85 Proceedings of the 26th Annual Symposium on Foundations of Computer Science
A practical scheme for non-interactive verifiable secret sharing
SFCS '87 Proceedings of the 28th Annual Symposium on Foundations of Computer Science
Distributed provers with applications to undeniable signatures
EUROCRYPT'91 Proceedings of the 10th annual international conference on Theory and application of cryptographic techniques
Public-key cryptosystems with very small key lengths
EUROCRYPT'92 Proceedings of the 11th annual international conference on Theory and application of cryptographic techniques
CCS '96 Proceedings of the 3rd ACM conference on Computer and communications security
Proceedings of the 4th ACM conference on Computer and communications security
Sec '01 Proceedings of the 16th international conference on Information security: Trusted information: the new decade challenge
A Secure and Efficient Key Escrow Protocol for Mobile Communications
ICCS '01 Proceedings of the International Conference on Computational Sciences-Part I
The Dark Side of "Black-Box" Cryptography, or: Should We Trust Capstone?
CRYPTO '96 Proceedings of the 16th Annual International Cryptology Conference on Advances in Cryptology
Towards Signature-Only Signature Schemes
ASIACRYPT '00 Proceedings of the 6th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
On the Difficulty of Key Recovery Systems
ISW '99 Proceedings of the Second International Workshop on Information Security
Auto-Recoverable Cryptosystems with Faster Initialization and the Escrow Hierarchy
PKC '99 Proceedings of the Second International Workshop on Practice and Theory in Public Key Cryptography
Toward Fair International Key Escrow
PKC '99 Proceedings of the Second International Workshop on Practice and Theory in Public Key Cryptography
Auto-recoverable Auto-certifiable Cryptosystems (A Survey)
Proceedings of the International Exhibition and Congress on Secure Networking - CQRE (Secure) '99
Kleptography: using cryptography against cryptography
EUROCRYPT'97 Proceedings of the 16th annual international conference on Theory and application of cryptographic techniques
EUROCRYPT'00 Proceedings of the 19th international conference on Theory and application of cryptographic techniques
ISSS'02 Proceedings of the 2002 Mext-NSF-JSPS international conference on Software security: theories and systems
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Recently, there has been a surge of interest in key-escrow systems, from the popular press to the highest levels of governmental policy-making. Unfortunately, the field of key-escrow has very little rigorous foundation, leaving open the possibility of a catastrophic security failure. As an example, we demonstrate a critical weakness in Micali's Fair Public Key Cryptosystem (FPKC) protocols. Micali's FKPC protocols have been licensed to the United States Government for use with the Clipper project, and were considered to be a leading contender for software-based key escrow. In the paper, we formally model both the attack and what it means to defend against the attack, and we present an alternative protocol with more desirable security properties.