Crossroads
Secure communications over insecure channels
Communications of the ACM
Escrow services and incentives in peer-to-peer networks
Proceedings of the 3rd ACM conference on Electronic Commerce
Certified email with a light on-line trusted third party: design and implementation
Proceedings of the 11th international conference on World Wide Web
Stateless-Recipient Certified E-Mail System Based on Verifiable Encryption
CT-RSA '02 Proceedings of the The Cryptographer's Track at the RSA Conference on Topics in Cryptology
The Order of Encryption and Authentication for Protecting Communications (or: How Secure Is SSL?)
CRYPTO '01 Proceedings of the 21st Annual International Cryptology Conference on Advances in Cryptology
Selective Receipt in Certified E-mail
INDOCRYPT '01 Proceedings of the Second International Conference on Cryptology in India: Progress in Cryptology
An Optimistic Non-repudiation Protocol with Transparent Trusted Third Party
ISC '01 Proceedings of the 4th International Conference on Information Security
ACSAC '98 Proceedings of the 14th Annual Computer Security Applications Conference
An abuse-free fair contract signing protocol based on the RSA signature
WWW '05 Proceedings of the 14th international conference on World Wide Web
Generic non-repudiation protocols supporting transparent off-line TTP
Journal of Computer Security - On IWAP'05
Efficient and secure protocol in fair certified E-mail delivery
WSEAS Transactions on Information Science and Applications
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
Some common attacks against certified email protocols and the countermeasures
Computer Communications
An abuse-free fair contract-signing protocol based on the RSA signature
IEEE Transactions on Information Forensics and Security
On the security of a certified e-mail scheme with temporal authentication
ICCSA'05 Proceedings of the 2005 international conference on Computational Science and Its Applications - Volume Part III
On the security of a certified e-mail scheme
INDOCRYPT'04 Proceedings of the 5th international conference on Cryptology in India
Generic, optimistic, and efficient schemes for fair certified email delivery
ICICS'05 Proceedings of the 7th international conference on Information and Communications Security
An efficient certified email protocol
ISC'07 Proceedings of the 10th international conference on Information Security
Design and formal verification of a CEM protocol with transparent TTP
Frontiers of Computer Science: Selected Publications from Chinese Universities
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Certified E-mail can be divided into an on-line protocol an optimistic protocol by the usage of a third party. We call this party "Delivery Authority". An on-line protocol can realize send-and-forget. There is a drawback, however, that the cost to Delivery Authority becomes large, because users surely access Delivery Authority in the middle of a protocol. On the other hand, when an optimistic protocol is used, there is little cost to Delivery Authority because users access Delivery Authority only in case a problem occurs, however, send-and-forget is unrealizable. Each protocol may be inconvenient depending on the situation. In the conventional system, however, a sender selects which protocol to use depending on a sender's convenience. In this paper, we propose the new system having both our proposed on-line protocol and optimistic protocol a receiver can choose freely. By this mechanism, a receiver can choose the usage of Delivery Authority freely according to that time after taking the necessity and the situation of Delivery Authority and the sender into consideration.