    @article {Zhou2005,
	title = {Optimised Multi-Party Certified Email Protocols},
	journal = {Information Management \& Computer Security Journal},
	volume = {13},
	number = {5},
	year = {2005},
	pages = {350-366},
	abstract = {<p>As a value-added service to deliver important data over the Internet with guaranteed receipt for each successful delivery, certified email has been discussed for years and a number of research papers appeared in the literature. But most of them deal with the two-party scenarios, i.e., there are only one sender and one recipient. In some applications, however, the same certified message may need to be sent to a set of recipients. In this paper, we presents two optimized multi-party certified email protocols. They have three major features. (1) A sender could notify multiple recipients of the same information while only those recipients who acknowledged are able to get the information. (2) Both the sender and the recipients can end a protocol run at any time without breach of fairness. (3) The exchange protocols are optimized, each of which have only three steps.</p>},
	keywords = {Communication technologies, Telecommunications, Value added},
	issn = {0968- 5227},
	author = {Jianying Zhou and Jose A. Onieva and Javier Lopez}
}
