Secure electronic transactions using a trusted intermediary with non-repudiation of receipt and contents of message. A system of, and method for, securely transmitting a package from a sender to a recipient, via an intermediary, are described, as is a novel data arrangement, stored in a computer-readable...http://www.google.co.uk/patents/US20010037453?utm_source=gb-gplus-sharePatent US20010037453 - Secure electronic transactions using a trusted intermediary with non-repudiation of receipt and contents of message
