how do they know what keys to ask for re clipper this may be a stupid question but how does the government know which keys to ask for will owners be required to register their phones faxes modems etc and inform the government when they are moved to a different phone number will there be penalities if the public does not do this will identification the national health care id perhaps be required when purchasing a clipper equipted phone or will each chip transmit identifying information at the start of a conversation identification which could be used to automatically log who calls whom the phone company keeps records but this information would be accessable by a well placed van near a microwave relay station this raises the question of how the two phones agree on a communications encryption key will it be something that is derived from information exchanged at the start of the conversation and hence derivable by an eavesdropper bear giles bear fsl noaa gov
