Cryptography – Particular algorithmic function encoding
Reexamination Certificate
2011-01-11
2011-01-11
Barron, Jr., Gilberto (Department: 2432)
Cryptography
Particular algorithmic function encoding
C380S282000
Reexamination Certificate
active
07869591
ABSTRACT:
A system and method for communicating information between a first party and a second party, comprising the steps of receiving, by an intermediary, an identifier of desired information and accounting information for a transaction involving the information from the first party, transmitting an identifier of the first party to the second party, and negotiating, by the intermediary, a comprehension function for obscuring at least a portion of the information communicated between the first party and the second party. The data transmission may be made secure with respect to the intermediary by providing an asymmetric key or direct key exchange for encryption of the communication between the first and second party. The data transmission may be made secure with respect to the second party by maintaining the information in encrypted format at the second party, with the decryption key held only by the intermediary, and transmitting a secure composite of the decryption key and a new encryption key to the second party for transcoding of the data record, and providing the new decryption key to the first party, so that the information transmitted to the first party can be comprehended by it.
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Felsher David P.
Hoffberg Steven M.
Nagel Robert H.
Barron Jr. Gilberto
Hoffberg Steven M.
Le David
Ostrolenk Faber LLP.
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