A method for delegating authorization from one entity in a distributed computing system to another for a computing session is disclosed wherein a session public/private encryption key pair is utilized for each computing session. The private encryption key is erased to terminate the computing session...http://www.google.com/patents/US5224163?utm_source=gb-gplus-sharePatent US5224163 - Method for delegating authorization from one entity to another through the use of session encryption keys
