SYSTEM AND METHOD FOR PROVIDING A TRUSTED THIRD PARTY CLOCK AND TRUSTED LOCAL CLOCK

摘要

The present invention involves a system and method of providing a trusted local clock in a computer environment. The local clock is in communication with a certified master clock. The accuracy of the time of the local clock is certified by the master clock. If the local clock departs from a predetermined acceptable error, the master clock updates the local clock. The communication between the master clock and the local clock is a secure, synchronized communication. When the local clock is accurate, the master clock provides certification tokens which the local clock can provide to verify accuracy of its time stamps.