Optimistic protocols for fair exchange
Proceedings of the 4th ACM conference on Computer and communications security
Fairness in electronic commerce
Fairness in electronic commerce
Evolution of Fair Non-repudiation with TTP
ACISP '99 Proceedings of the 4th Australasian Conference on Information Security and Privacy
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
Off-Line Fair Payment Protocols Using Convertible Signatures
ASIACRYPT '98 Proceedings of the International Conference on the Theory and Applications of Cryptology and Information Security: Advances in Cryptology
Optimistic Fair Exchange with Transparent Signature Recovery
FC '01 Proceedings of the 5th International Conference on Financial Cryptography
Exploring Fair Exchange Protocols Using Specification Animation
ISW '00 Proceedings of the Third International Workshop on Information Security
An Efficient Non-repudiation Protocol
CSFW '97 Proceedings of the 10th IEEE workshop on Computer Security Foundations
A fair non-repudiation protocol
SP '96 Proceedings of the 1996 IEEE Symposium on Security and Privacy
EUROCRYPT'91 Proceedings of the 10th annual international conference on Theory and application of cryptographic techniques
A Certified E-mail System with Receiver's Selective Usage of Delivery Authority
INDOCRYPT '02 Proceedings of the Third International Conference on Cryptology: Progress in Cryptology
Generic non-repudiation protocols supporting transparent off-line TTP
Journal of Computer Security - On IWAP'05
Smart card-based agents for fair non-repudiation
Computer Networks: The International Journal of Computer and Telecommunications Networking
Automatic Methods for Analyzing Non-repudiation Protocols with an Active Intruder
Formal Aspects in Security and Trust
Generic Fair Non-Repudiation Protocols with Transparent Off-line TTP
Proceedings of the 2005 conference on Applied Public Key Infrastructure: 4th International Workshop: IWAP 2005
Optimistic non-repudiation protocol analysis
WISTP'07 Proceedings of the 1st IFIP TC6 /WG8.8 /WG11.2 international conference on Information security theory and practices: smart cards, mobile and ubiquitous computing systems
Verification of A Key Chain Based TTP Transparent CEM Protocol
Electronic Notes in Theoretical Computer Science (ENTCS)
Design and implementation of an inline certified e-mail service
CANS'05 Proceedings of the 4th international conference on Cryptology and Network Security
An evenhanded certified email system for contract signing
ICICS'05 Proceedings of the 7th international conference on Information and Communications Security
Generic, optimistic, and efficient schemes for fair certified email delivery
ICICS'05 Proceedings of the 7th international conference on Information and Communications Security
Further observations on optimistic fair exchange protocols in the multi-user setting
PKC'10 Proceedings of the 13th international conference on Practice and Theory in Public Key Cryptography
Synthesizing protocols for digital contract signing
VMCAI'12 Proceedings of the 13th international conference on Verification, Model Checking, and Abstract Interpretation
A Practical Approach of Fairness in E-Procurement
International Journal of Information Security and Privacy
Design and formal verification of a CEM protocol with transparent TTP
Frontiers of Computer Science: Selected Publications from Chinese Universities
| Hi-index | 0.00 |
In this paper we consider a new and efficient optimistic nonrepudiation protocol. In a non-repudiation protocol, during which Alice wants to transmit a message to Bob, Alice has to send a nonrepudiation of origin evidence to Bob (attesting that Alice is at the origin of the transmitted message), and Bob has to send a non-repudiation of receipt evidence to Alice (attesting Bob's receipt of the message). Classical solutions propose to use a trusted third party to help realizing the exchange without giving any significant advantage to one of the two parties. In an optimistic protocol, the trusted third party intervenes only in case of problems during the communication between Alice and Bob. Classically, in a situation where an error occurs, evidences that have been digitally signed by the TTP are issued. Although these evidences are distinct from those produced by Alice and Bob in a faultless case, they have the same value in case of a dispute. In this paper we propose a protocol where the TTP produces the same evidences that Alice and Bob should have produced in a faultless protocol execution (this prevents, after a succesful protocol execution, to determine whether the TTP was involved or not).