| 摘要 |
A proxy service provides a point of intervention for applying information handling policies, especially copyright enforcement. A proxy server 12 accesses a rights management file, drm, when a client 10 wishes to send or request information, and forwards or obtains the information by contacting a further server according to the file contents, thus enforcing the policies. This arrangement is particularly useful where users with heterogeneous viewing environments need policies applied in a flexible and uniform way. Mechanisms of user authentication and authorisation are kept separate from the policy enforcement process.
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