Patent ID: 6161181
Filing Date: 2000-12-12
Classification: G06Q,H04L

Abstract:
A system for use with a communication network to securely transmit a message thereover from a sender to a recipient, comprising:a transmitter havingfirst logic to receive the message from a user and to form an encrypted inner envelope using a first cryptographic algorithm, the encrypted inner envelope containing the message in an encrypted form decryptable by the recipient;second logic to form a first information structure associated with the inner envelope, the first information structure containing data identifying the recipient as a destination;third logic to form an encrypted first information structure using a second cryptographic algorithm, the encrypted first information structure, containing the first information structure in an encrypted form decryptable by the intermediary, wherein the second cryptographic algorithm is different than the first cryptographic algorithm;fourth logic to receive the encrypted inner envelope and encrypted first information structure and to transmit them as a first package on the communication network;an intermediary havingfifth logic to receive the first package and to decrypt the encrypted first information structure, using the second cryptographic algorithm, to determine the identifying data;sixth logic to form a second package, the second package containing the encrypted inner envelope;seventh logic to inform the recipient of the second package;a receiver havingeighth logic to obtain the second package; andninth logic to decrypt the inner envelope, using the first cryptographic algorithm, to recover the message.