Method and apparatus for self-authenticating digital records

Details Method and apparatus for self-authenticating digital records Method and apparatus for self-authenticating digital records

2006-03-20

2011-10-04

Shiferaw, Eleni (Department: 2437)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Central trusted authority provides computer authentication

C713S157000, C713S158000, C713S159000, C713S176000, C380S030000, C380S286000, C705S044000, C709S226000

Reexamination Certificate

active

08032744

ABSTRACT:
A method for proving the validity of a digital document digitally signed using a digital key that corresponds to a digital certificate in a chain of digital certificates issued by certification authorities within a hierarchy of certification authorities. At least one secure digital time stamp is applied to at least one record comprising the digital document, the digital signature, certificate chain data, and information relating to the revocation of certificates by certification authorities within the certificate chain. If, at some later time, one or more digital certificates either expire or are revoked, the timestamp serves as evidence of the integrity of the signed digital document.

REFERENCES:
patent: 5136646 (1992-08-01), Haber et al.
patent: 5373561 (1994-12-01), Haber et al.
patent: 5687235 (1997-11-01), Perlman et al.
patent: 5745574 (1998-04-01), Muftic
patent: 5903651 (1999-05-01), Kocher
patent: 5903882 (1999-05-01), Asay et al.
patent: 6442689 (2002-08-01), Kocher
patent: 6978364 (2005-12-01), Balaz et al.
patent: 2005/0114653 (2005-05-01), Sudia
patent: WO 02091730 (2002-11-01), None
Karthikeyan Bhargavan, Cédric Fournet, Andrew D. Gordon, Nikhil Swamy; “Verified implementations of the information card federated identity-management protocol”; Mar. 2008; ASIACCS '08: Proceedings of the 2008 ACM symposium on Information, computer and communications security; Publisher: ACM; pp. 123-135.
Hans Nilsson, iD2 Technologies, Hans. Nilsson@iD2tech.com; “Validation of Electronic Signatures White Paper” pp. 1-10; Mar. 19, 1999; http://www.id2tech.com
ews/pdf/ES—validation.pdf.
Laid-open Japanese Patent Publication No. Hei 11-119650.
R. Housley, W. Ford, W. Polk, D. Solo, “Internet X.509 Public Key Infrastructure Certificate and CRL Profile”, Network Working Group Request for Comments: 2459, [online], Jan. 1999, Category: Standards Track, URL:http://www.rfc-editor.org/rfc/pdfrfc/rfc2459.txt.pdf.
M. Myers, R. Ankney, A. Malpani, S. Galperin, C. Adams, “X.509 Internet Public Key Infrastructure Online Certificate States Protocol—OCSP”, Network Working Group Request for Comments: 2560, [online], Jun. 1999, Category: Standards Track, [retrieved on Mar. 23, 2011]. Retrieved from the Internet, URL, http://www.rfc-editor.org/rfc/pdfrfc/rfc2560.txt.pdf.
Laid-open Japanese Patent Publication No. Hei 11-289329.
C. Adams, S. Farrell, “Internet X.509 Public Key Infrastructure Certificate Management Protocols”, Network Working Group Request for Comments: 2510, [online], Mar. 1999, Category: Standards Track, [retrieved on Mar. 23, 2011]. Retrieved from the Internet, URL, http://www.rfc-editor.org/rfc/pdfrfc/rfc2510.txt.pdf.
Naofumi Ishii, “Construction of a server in SuiteSpot 3.5, Chapter 5 Directory Server”, Open Design, Japan, CQ Publishing Co., Ltd., Oct. 1, 1999, vol. 1, No. 5, pp. 72-91.

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