    @inproceedings {EijiOkamoto2003,
	title = {Certificate Retrieval and Validation in Online Systems},
	booktitle = {Symposium on Cryptography and Information Security (SCIS{\textquoteright}03)},
	year = {2003},
	month = {January},
	pages = {25-30},
	address = {Hamamatsu, Japan},
	abstract = {<p>In order to more effectively deal with certificate management issues in PKIs, there is growing interest in supplementing offline X.509 PKI models with online services. An analysis of the security requirements of online models will be presented. Proposed online and delegated processing models will be evaluated in relation to these requirements.</p>},
	author = {Eiji Okamoto and Javier Lopez and Ed Dawson and Juan M. Gonzalez-Nieto and Selwyn Russell and Jason Smith}
}
