TY - GEN
T1 - A certified E-mail system with receiver’s selective usage of delivery authority
AU - Imamoto, Kenji
AU - Sakurai, Kouichi
PY - 2002
Y1 - 2002
N2 - 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.
AB - 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.
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U2 - 10.1007/3-540-36231-2_26
DO - 10.1007/3-540-36231-2_26
M3 - Conference contribution
AN - SCOPUS:84974711047
SN - 9783540362319
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 326
EP - 338
BT - Progress in Cryptology - INDOCRYPT 2002 - 3rd International Conference on Cryptology in India, Proceedings
A2 - Menezes, Alfred
A2 - Sarkar, Palash
PB - Springer Verlag
T2 - 3rd International Conference on Cryptology in India, INDOCRYPT 2002
Y2 - 16 December 2002 through 18 December 2002
ER -