Electrical computers and digital processing systems: support – Data processing protection using cryptography – By stored data protection
Reexamination Certificate
2003-05-22
2009-02-17
Nalven, Andrew L (Department: 2434)
Electrical computers and digital processing systems: support
Data processing protection using cryptography
By stored data protection
Reexamination Certificate
active
07493499
ABSTRACT:
A secure distribution system utilizes a content viewer that consists of an applet that is downloaded to a user's conventional browser when the user logs into a publisher's server. The content viewer requests a selected document from the server by referring to the document name or URL. The server retrieves the document and forwards it to the viewer in encrypted form. The viewer then computes a document identifier from the encrypted document and uses the identifier to request a key in order to decrypt the document. The key is forwarded from the server to the viewer that then decrypts the document and displays it in the viewer. Since the document is processed by the viewer and displayed only in a window associated with the viewer, none of the conventional browser functions has to be disabled. Further, since the document is downloaded in encrypted form, it cannot be stored or forwarded using the conventional browser.
REFERENCES:
patent: 5541993 (1996-07-01), Fan et al.
patent: 5742807 (1998-04-01), Masinter
patent: 5787179 (1998-07-01), Ogawa et al.
patent: 5892900 (1999-04-01), Ginter et al.
patent: 5949876 (1999-09-01), Ginter et al.
patent: 5982891 (1999-11-01), Ginter et al.
patent: 5991399 (1999-11-01), Graunke et al.
patent: 6087632 (2000-07-01), Mizosaki et al.
patent: 6112181 (2000-08-01), Shear et al.
patent: 6138119 (2000-10-01), Hall et al.
patent: 6157721 (2000-12-01), Shear et al.
patent: 6253193 (2001-06-01), Ginter et al.
patent: 6289452 (2001-09-01), Arnold et al.
patent: 6292569 (2001-09-01), Shear et al.
patent: 6363488 (2002-03-01), Ginter et al.
patent: 6449721 (2002-09-01), Pensak et al.
patent: 6711594 (2004-03-01), Yano et al.
patent: 6807632 (2004-10-01), Carpentier et al.
patent: 6938047 (2005-08-01), Kryeziu
patent: 6976165 (2005-12-01), Carpentier et al.
patent: 6996544 (2006-02-01), Sellars et al.
patent: 7017188 (2006-03-01), Schmeidler et al.
patent: 7035826 (2006-04-01), Hamada et al.
patent: 7062045 (2006-06-01), Riddick et al.
patent: 7073199 (2006-07-01), Raley
patent: 7095853 (2006-08-01), Morishita
patent: 7103574 (2006-09-01), Peinado et al.
patent: 7171567 (2007-01-01), Bayer et al.
patent: 2002/0002541 (2002-01-01), Williams
patent: 2002/0013772 (2002-01-01), Peinado
patent: 2002/0073033 (2002-06-01), Sherr et al.
patent: 2002/0146118 (2002-10-01), DiSanto
patent: 2004/0236956 (2004-11-01), Shen et al.
patent: 1 372 055 (2003-12-01), None
patent: WO 01/09703 (2001-02-01), None
patent: WO 01/41018 (2001-06-01), None
patent: WO 02/100037 (2002-12-01), None
Von Faber, Eberhard, et al., “The Secure Distribution of Digital Contents”, debis IT Security Services, pp. 16-22, Bonn, Germany.
U.S. Appl. No. 10/621,705, filed Jul. 17, 2003, Klebe et al.
U.S. Appl. No. 10/615,278, filed Jul. 8, 2003, Deaver et al.
Deaver John
Johnson Woodrow W.
Klebe Skott C.
Copyright Clearance Center, Inc.
Law Offices of Paul E. Kudirka
Nalven Andrew L
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