System and method for securing on-line documents using...

Details System and method for securing on-line documents using... System and method for securing on-line documents using...

2006-07-07

2011-10-11

Simitoski, Michael (Department: 2439)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C726S006000, C380S051000, C380S251000, C379S093130, C463S017000, C283S903000, C902S022000, C902S023000, C273S139000, C273S269000

Reexamination Certificate

active

08037307

ABSTRACT:
A system and method for providing an authentication code across a network for use in authentication of documents, such as printed lottery tickets. The system includes document-printing terminals that include a key that is used in a mathematical function with the bet information for a specific-game entry to generate a document code that is sent to a central server. The central server stores the received document code and then generates an authentication code for the document desired to be printed at the terminal, and sends the authentication code back to the terminal for printing on the issued document. The authentication code can be a further mathematical processing of the document code. Verification of the document occurs from comparison of the authentication code on the document and stored authentication and/or document codes at the server.

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