Document broadcasting utilizing hashcodes

Details Document broadcasting utilizing hashcodes Document broadcasting utilizing hashcodes

2004-07-30

2009-08-25

Jacobs, Lashonda T (Department: 2457)

Electrical computers and digital processing systems: multicomput

Computer network managing

C709S203000, C709S217000, C707S793000, C707S793000

Reexamination Certificate

active

07580993

ABSTRACT:
In a business environment, a document with data can be distributed to one or more receivers on a regular basis. Between distribution intervals, the document may or may not be updated with different data. In one implementation, a document distribution system includes a hashcode generator for a document. The hashcode generator can generate a hashcode that is unique for the document. The system includes a comparator to compare a hashcode for a previously-distributed document with the hashcode generated for the document. The system can have one or more distribution channels to distribute the document. Executable information can include instructions to distribute the document over the one or more distribution channels if the comparator determines that the hashcode for the previously-distributed document and the hashcode generated for the document are different.

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Ertel, Wolfgang,Angewandte Kryptographie, Carl Hanser Verlag Munchen Wien, 2003.

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