Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2005-10-25
2005-10-25
Smithers, Matthew (Department: 2137)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S168000, C713S176000
Reexamination Certificate
active
06959382
ABSTRACT:
A digital signature service generates digital signatures for documents independent of the program used to transmit the documents. The digital signature service may operate as a Web server application, or as a client application on a user's computer. The digital signature service imports a certificate specific to a user. To digitally sign a document, the user identifies a document, and the digital signature service generates a single signature file that includes the user's certificate, the document, and the digital signature. With the signature file, the user may now store and/or transmit the file using any program while maintaining the integrity and authenticity capabilities associated with digital signatures. The digital signature service also permits multiple digital signatories to a single document. A secure document repository, implemented on a Web Site, is also disclosed.
REFERENCES:
patent: 5208858 (1993-05-01), Vollert et al.
patent: 5825880 (1998-10-01), Sudia et al.
patent: 6209091 (2001-03-01), Sudia et al.
patent: 6237096 (2001-05-01), Bisbee et al.
patent: 6363479 (2002-03-01), Godfrey et al.
patent: 0 845 733 (1997-11-01), None
patent: 0 940 945 (1999-09-01), None
patent: WO 97/12460 (1997-04-01), None
patent: WO 97/43717 (1997-11-01), None
patent: WO 97/50036 (1997-12-01), None
patent: WO 97/50207 (1997-12-01), None
patent: WO 98/20644 (1998-05-01), None
patent: WO 98/54633 (1998-12-01), None
patent: WO 99/22486 (1999-05-01), None
patent: WO 99/48243 (1999-09-01), None
patent: WO 99/57847 (1999-11-01), None
patent: WO 99/59096 (1999-11-01), None
Lowry, J.: “Location-Independent Information Object Security,”, IEEE Comput. Soc. Press, 1995, pp. 54-62, SP002155116 Los Alamitos, CA, USA.
Kalla, et al: “Achieving non-repudiation of Web based transactions”, The Journal of Systems and Software, 1999, pp. 165-175, v. 48.
Kinnis Tony F.
Sit Ho Wing
Accela, Inc.
Smithers Matthew
Stattler Johansen & Adeli LLP
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