Cryptography – Electric signal modification – Having production of printed copy
Patent
1994-11-22
1997-01-28
Cangialosi, Salvatore
Cryptography
Electric signal modification
Having production of printed copy
H04L 900
Patent
active
055984770
ABSTRACT:
A system and method for issuing and validating tickets. The system includes a data processing system for receiving ticket request information and generating ticket information; the ticket information including encrypted validating information, a local printing system which receives the ticket information and prints the encrypted validating information on a ticket in machine readable format, and a validating system for converting the encrypted validating information into a digital format, decrypting the validating information, testing the validating information to validate the ticket and, if the ticket is valid, downloading at least a portion of the ticket information for reconciliation of accounts; that is for reconciling ticket issuance, use, and payment. The data processing system receives an itinerary from a purchaser, checks a reservation system to determine service availability and provides service availability information to the purchaser who selects appropriate services and submits ticket request information. The data processing system then generates ticket information including encrypted validating information and transmits the ticket information to the local printing system which prints a ticket having the encrypted validating information printed in a machine readable format. When the ticket is presented to a validating system the validating system converts the encrypted validating information into a digital format, decrypts the encrypted validating information, tests the validating information to validate the ticket and, if the ticket is valid, downloads at least a portion of the ticket information for reconciliation of accounts, that is for reconciliation of ticket issuance, use and payment. A number of encryption protocols for encryption of the validating information are also disclosed.
REFERENCES:
patent: 3985998 (1976-10-01), Crafton
patent: 5119295 (1992-06-01), Kapur
patent: 5270921 (1993-12-01), Hornick
patent: 5317135 (1994-05-01), Finocchio
patent: 5398932 (1995-03-01), Eberhardt et al.
Cangialosi Salvatore
Pitney Bowes Inc.
Scolnick Melvin J.
Whisker Robert H.
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