Equitable Key Escrow with Limited Time Span (or, How to Enforce Time Expiration Cryptographically)

Authors:
Mike Burmester;Yvo Desmedt;Jennifer Seberry
Affiliations:
-;-;-
Venue:
ASIACRYPT '98 Proceedings of the International Conference on the Theory and Applications of Cryptology and Information Security: Advances in Cryptology
Year:
1998

Citing 20
Cited 10

Security without identification: transaction systems to make big brother obsolete

Communications of the ACM
A simple unpredictable pseudo random number generator

SIAM Journal on Computing
A practical protocol for large group oriented networks

EUROCRYPT '89 Proceedings of the workshop on the theory and application of cryptographic techniques on Advances in cryptology
Zero-knowledge undeniable signatures (extended abstract)

EUROCRYPT '90 Proceedings of the workshop on the theory and application of cryptographic techniques on Advances in cryptology
How to withstand mobile virus attacks (extended abstract)

PODC '91 Proceedings of the tenth annual ACM symposium on Principles of distributed computing
How to share a function securely

STOC '94 Proceedings of the twenty-sixth annual ACM symposium on Theory of computing
Perfect Homomorphic Zero-Knowledge Threshold Schemes over any Finite Abelian Group

SIAM Journal on Discrete Mathematics
A taxonomy for key escrow encryption systems

Communications of the ACM
Witness-based cryptographic program checking and robust function sharing

STOC '96 Proceedings of the twenty-eighth annual ACM symposium on Theory of computing
Verifiable partial key escrow

Proceedings of the 4th ACM conference on Computer and communications security
Threshold Cryptosystems

CRYPTO '89 Proceedings of the 9th Annual International Cryptology Conference on Advances in Cryptology
Fair Public-Key Cryptosystems

CRYPTO '92 Proceedings of the 12th Annual International Cryptology Conference on Advances in Cryptology
Proactive Secret Sharing Or: How to Cope With Perpetual Leakage

CRYPTO '95 Proceedings of the 15th Annual International Cryptology Conference on Advances in Cryptology
Proactive RSA

CRYPTO '97 Proceedings of the 17th Annual International Cryptology Conference on Advances in Cryptology
A Simplified Approach to Threshold and Proactive RSA

CRYPTO '98 Proceedings of the 18th Annual International Cryptology Conference on Advances in Cryptology
Multiplicative Non-abelian Sharing Schemes and their Application to Threshold Cryptography

ASIACRYPT '94 Proceedings of the 4th International Conference on the Theory and Applications of Cryptology: Advances in Cryptology
Efficient Dynamic-Resharing "Verifiable Secret Sharing" Against Mobile Adversary

ESA '95 Proceedings of the Third Annual European Symposium on Algorithms
Time-lock Puzzles and Timed-release Crypto

Time-lock Puzzles and Timed-release Crypto
Efficient multiplicative sharing schemes

EUROCRYPT'96 Proceedings of the 15th annual international conference on Theory and application of cryptographic techniques
A threshold cryptosystem without a trusted party

EUROCRYPT'91 Proceedings of the 10th annual international conference on Theory and application of cryptographic techniques

Publicly Verifiable Key Escrow with Limited Time Span

ACISP '99 Proceedings of the 4th Australasian Conference on Information Security and Privacy
An Equitably Fair On-line Auction Scheme

EC-WEB '00 Proceedings of the First International Conference on Electronic Commerce and Web Technologies
Forward-Secure Threshold Signature Schemes

CT-RSA 2001 Proceedings of the 2001 Conference on Topics in Cryptology: The Cryptographer's Track at RSA
Assumptions Related to Discrete Logarithms: Why Subtleties Make a Real Difference

EUROCRYPT '01 Proceedings of the International Conference on the Theory and Application of Cryptographic Techniques: Advances in Cryptology
A Tool Box of Cryptographic Functions Related to the Diffie-Hellman Function

INDOCRYPT '01 Proceedings of the Second International Conference on Cryptology in India: Progress in Cryptology
On the Difficulty of Key Recovery Systems

ISW '99 Proceedings of the Second International Workshop on Information Security
Equitability in Retroactive Data Confiscation versus Proactive Key Escrow

PKC '01 Proceedings of the 4th International Workshop on Practice and Theory in Public Key Cryptography: Public Key Cryptography
ID-Based Group Password-Authenticated Key Exchange

IWSEC '09 Proceedings of the 4th International Workshop on Security: Advances in Information and Computer Security
On relationship of computational Diffie-Hellman problem and computational square-root exponent problem

IWCC'11 Proceedings of the Third international conference on Coding and cryptology
Accountable privacy

SP'04 Proceedings of the 12th international conference on Security Protocols

Quantified Score

Hi-index	0.01

Visualization

Abstract

With equitable key escrow the control of society over the individual and the control of the individual over society are shared fairly. In particular, the control is limited to specified time periods. We consider two applications: time controlled key escrow and time controlled auctions with closed bids. In the first the individual cannot be targeted outside the period authorized by the court. In the second the individual cannot withhold his closed bid beyond the bidding period. We propose two protocols, one for each application. We do not require the use of tamper-proof devices.