Techniques are provided for preserving and managing identities within an audit log. Initial entries into a log do not include an explicit and direct reference to an agent that performs a transaction; rather, the agent acquires a temporary transaction identity for the transaction and an indirect reference...http://www.google.com.tw/patents/US20070124820?utm_source=gb-gplus-share專利 US20070124820 - Techniques for preserving and managing identities in an audit log
