Document authentication system

Details Document authentication system Document authentication system

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H04L 9/08 (2006.01) B07C 1/00 (2006.01) G06F 1/00 (2006.01) G06F 21/00 (2006.01) G07B 17/00 (2006.01) G07F 7/10 (2006.01) G07F 7/12 (2006.01)

Patent

CA 1331640

DOCUMENT AUTHENTICATION SYSTEM Abstract of the Disclosure A system for reliably authenticating a document includes a device having a decryption key therein that, upon application to information provided by a user, reveals not only a plain text message indicating the source of the authentication but, in addition, provides the decryption key for use with the information provided by the mailer.

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