The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 27, 1997

Filed:

Dec. 19, 1995
Applicant:
Inventors:

Derek L Davis, Phoenix, AZ (US);

Lionel Smith, Queen Creek, AZ (US);

Assignee:

Intel Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L / ; H04L / ; B41J / ;
U.S. Cl.
CPC ...
380 25 ; 380-3 ; 380-4 ; 380 23 ; 380 30 ; 380 49 ; 380 51 ; 380 55 ; 34082531 ; 34082534 ;
Abstract

A system and method for preventing a copy of a document to the output from a printing node until the printing node authenticates the intended recipient. The system includes a sending node, a printing node and a communication link coupling these nodes together in a network fashion. The sending node has access to a public key of the printing node and uses this public key to encrypt a header and document before transmission to the printing node over the communication link. The priority node has access to its private key to decrypt the header to ascertain whether the document requires authentication by the intended recipient before being output.

Published as:
US5633932A; WO9833293A1; AU2112497A; GB9917003D0; GB2336512A; DE19782258T1; GB2336512B; DE19782258B4;

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