The official PGP user's guide
ACM SIGAda Ada Letters
CT-RSA '02 Proceedings of the The Cryptographer's Track at the RSA Conference on Topics in Cryptology
CT-RSA '02 Proceedings of the The Cryptographer's Track at the RSA Conference on Topics in Cryptology
ICISC '01 Proceedings of the 4th International Conference Seoul on Information Security and Cryptology
Content extraction signatures using XML digital signatures and custom transforms on-demand
WWW '03 Proceedings of the 12th international conference on World Wide Web
Certificate-based authorization policy in a PKI environment
ACM Transactions on Information and System Security (TISSEC)
The PRIMA System for Privilege Management, Authorization and Enforcement in Grid Environments
GRID '03 Proceedings of the 4th International Workshop on Grid Computing
Aggregated path authentication for efficient BGP security
Proceedings of the 12th ACM conference on Computer and communications security
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In distributed systems, especially in pervasive and ubiquitous environments, mobile users gather certificates providing them rights to access unknown and trusted environments. Such a certificate embeds increasing number of information that leads the certificate provider to adapt existing standards to its requirements. In this paper, we propose a new model of certification called X3161 to set up an XML certificates with a contextual morph capability. This morph characteristic enables each certificate owner to disclose and to blind some sensitive certificate parts according to surrounding context. The usability of the X316 is illustrated with the "Chameleon" architecture offering users such a possible access if they appear with trusted certificates. These certificates may be gathered during their roaming in the pervasive environment, and they offer direct or transitive access to foreign sites, based on trust relationships.