Patent ID: 7383582
Filing Date: 2008-06-03
Classification: H04L

Abstract:
1. A method for performing an electronic surveillance with proper judicial oversight, comprising: conditioning a packet capture device to include recording data corresponding to operation of the packet capture device to ensure that the surveillance was conducted properly; conducting the electronic surveillance using the packet capture device to produce a record; encrypting the record using a first key from a first smart card issued to a law enforcement agent; creating a system event log, during production of the record, that identifies a current mode of operation and time period; digitally signing the encrypted record using a second key from the first smart card to bind the law enforcement agent with the mode of operation and the time period of the surveillance to ensure the proper judicial oversight; hashing the digitally-signed record using a third key from a second smart card; encrypting the system event log using a fourth key from the second smart card; and digitally signing the system event log using a fifth key from the second smart card and a sixth key from the first smart card.