An Efficient Certified E-Mail Scheme Suitable for Wireless Mobile Environments

Conference: PIMRC 2005 - 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications
09/11/2005 - 09/14/2005 at Berlin, Germany

Proceedings: PIMRC 2005

Pages: 5Language: englishTyp: PDF

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Wang, Guilin; Bao, Feng; Zhou, Jianying (Infocomm Security Department, Institute for Infocomm Research (I2R), 21 Heng Mui Keng Terrace, Singapore 119613)
Deng, Robert H. (School of Information Systems, Singapore Management University, 469 Bukit Timah Road, Singapore 259756)

As security enhanced systems for standard e-mail, certified e-mail schemes guarantee the fair exchange of a digital message with the corresponding receipt between two mistrusted parties. That is, the intended receiver gets the e-mail content if and only if the e-mail sender obtains an irrefutable receipt issued by the receiver, which could be used to prove that the message has been delivered to the receiver. A number of such protocols have been proposed in recent years. However, most of them are not suitable for mobile networks, since many intricate cryptographic primitives are involved so that considerable overheads are introduced. In this paper, we present a novel simple protocol for certified e-mail delivery. Technical discussions are provided to show that our new solution is both secure and very efficient so that it is truly suitable for wireless mobile users, where the available devices usually have limited resources on computation, communication, storage, and power supply.