IMPROVED CERTIFICATE CHAIN VALIDATION

摘要

A method of validating an access operation to content on a device, comprising evaluating a license associated with the content, characterized by further evaluating a ruleset applicable to the content and validating the access operation only if the license and the ruleset both permit the access operation. The license may indicate the ruleset. Alternatively the ruleset applicable to the content may be determined by determining a characteristic of the content and selecting the ruleset based on the determined characteristic. The characteristic preferably is one of: a type of the content, a source of the content, a classification of the content. In an embodiment one or more links are evaluated which associate a person and/or the device to an authorized domain and a link associating the ruleset to the authorized domain is evaluated as well. Also a system configured for executing the method.