A randomized protocol for signing contracts
Communications of the ACM
Value exchange systems enabling security and unobservability
Computers and Security
Practical and provably secure release of a secret and exchange of signatures
EUROCRYPT '93 Workshop on the theory and application of cryptographic techniques on Advances in cryptology
How to simultaneously exchange secrets by general assumptions
CCS '94 Proceedings of the 2nd ACM Conference on Computer and communications security
Fair exchange with a semi-trusted third party (extended abstract)
Proceedings of the 4th ACM conference on Computer and communications security
Efficient verifiable encryption (and fair exchange) of digital signatures
CCS '99 Proceedings of the 6th ACM conference on Computer and communications security
ACM Transactions on Computer Systems (TOCS)
An efficient protocol for anonymous and fair document exchange
Computer Networks: The International Journal of Computer and Telecommunications Networking
An Optimistic Fair Exchange E-commerce Protocol with Automated Dispute Resolution
EC-WEB '00 Proceedings of the First International Conference on Electronic Commerce and Web Technologies
Fair Exchange of Digital Signatures with Offline Trusted Third Party
ICICS '01 Proceedings of the Third International Conference on Information and Communications Security
Abuse-Free Optimistic Contract Signing
CRYPTO '99 Proceedings of the 19th Annual International Cryptology Conference on Advances in Cryptology
Observations on Non-repudiation
ASIACRYPT '96 Proceedings of the International Conference on the Theory and Applications of Cryptology and Information Security: Advances in Cryptology
Efficient Fair Exchange with Verifiable Confirmation of Signatures
ASIACRYPT '98 Proceedings of the International Conference on the Theory and Applications of Cryptology and Information Security: Advances in Cryptology
Security proofs for signature schemes
EUROCRYPT'96 Proceedings of the 15th annual international conference on Theory and application of cryptographic techniques
An abuse-free fair contract-signing protocol based on the RSA signature
IEEE Transactions on Information Forensics and Security
The fairness of perfect concurrent signatures
ICICS'06 Proceedings of the 8th international conference on Information and Communications Security
Asymmetric concurrent signatures
ICICS'05 Proceedings of the 7th international conference on Information and Communications Security
A public key cryptosystem and a signature scheme based on discrete logarithms
IEEE Transactions on Information Theory
Optimistic fair exchange of digital signatures
IEEE Journal on Selected Areas in Communications
| Hi-index | 0.00 |
In this paper, we propose a notion of contract signature used in e-commerce applications. We propose a contract signature scheme based on the discrete logarithm assumption. The contract signature scheme adopts a digital multi-signature scheme in public-key cryptography to facilitate fair signature exchange over network. This proposed solution allows multiple signers of a contract signature to exchange their partial signatures which are fully ambiguous for any third party (i.e., 1 out of ~ambiguity) to construct a valid contract signature. In case any signer releases the partial signature to others, the signer does not bind to the contract.