Secured purchasing system

Details Secured purchasing system Secured purchasing system

2005-03-29

2005-03-29

Trammell, James P. (Department: 3621)

Data processing: financial, business practice, management, or co

Business processing using cryptography

Usage protection of distributed data files

C705S050000, C705S052000, C705S053000, C705S057000, C705S076000, C705S078000

Reexamination Certificate

active

06873976

ABSTRACT:
A system and method for transferring an encrypted file over the Internet involves a seller, a buyer, and a transaction agent. The file has a first part (administrative information) and a second part (subject-matter content) that are respectively encrypted with first and second encryption/decryption non-public keys. In operation, the appropriate key is released by the seller or the transaction agent for respective use by either the transaction agent or the buyer, to decrypt and reveal the second part of the file to the buyer.

REFERENCES:
patent: 5537585 (1996-07-01), Blickenstaff
patent: 5727129 (1998-03-01), Barrett
patent: 5761663 (1998-06-01), Lagarde
patent: 5768528 (1998-06-01), Stumm
patent: 5832522 (1998-11-01), Blickenstaff
patent: 5850442 (1998-12-01), Muftic
patent: 5960411 (1999-09-01), Hartman
patent: 6226618 (2001-05-01), Downs et al.
patent: 20020112171 (2002-08-01), Ginter et al.
patent: 20030144963 (2003-07-01), Saito
patent: WO 0014918 (2000-03-01), None
Faber et al., “The Secure Distribution of Digital Contents”, 1997 IEEE.

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