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CMS
2006
14 years 11 months ago
2006
In this paper we describe how we have added support for dynamic delegation of authority that is enacted via the issuing of credentials from one user to another, to the XACML model ...
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CMS
2001
14 years 11 months ago
2001
Abstract Within the traditional telephone system a certain level of quality and security has been established over the years. If we try to use IP Telephony systems as a core part o...
CMS
2001
14 years 11 months ago
2001
Good public-key infrastructures (PKIs) are essential to make electronic commerce secure. Quite recently, certificate verification trees (CVTs) have been introduced as a tool for im...
CMS
2003
14 years 11 months ago
2003
Abstract. Some security problems can be often solved through authorization rather than authentication. Furthermore, certificate-based authorization approach can alleviate usual dr...
CMS
2003
14 years 11 months ago
2003
We outline cryptographic key–computation from biometric data based on error-tolerant transformation of continuous-valued face eigenprojections to zero-error bitstrings suitable f...