A super password is a one time use password that is issued to a user for the singular purpose of reinitializing the user password system for a meter. When the meter is manufactured, the meter and the Data Center share secret data such that they can execute a predefined and identical algorithm for secure...http://www.google.fr/patents/US5590198?utm_source=gb-gplus-shareBrevet US5590198 - Open metering system with super password vault access
Open metering system with super password vault access