A system and method for communicating information between a first party and a second party, comprising identifying desired information, negotiating, through an intermediary, a comprehension function for obscuring at least a portion of the information communicated between the first party and the second...http://www.google.fr/patents/US7181017?utm_source=gb-gplus-shareBrevet US7181017 - System and method for secure three-party communications
System and method for secure three-party communications
