Non-repudiation of e-mail messages

Details Non-repudiation of e-mail messages Non-repudiation of e-mail messages

2005-06-07

2005-06-07

Smithers, Matthew (Department: 2137)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Central trusted authority provides computer authentication

C713S156000, C713S170000

Reexamination Certificate

active

06904521

ABSTRACT:
A technique, and system(s) implementing the technique, allow an encrypted message to be sent directly to a recipient, and when the recipient opens the message, the recipient's system sends a request to an arbiter server to retrieve decryption information to decrypt the message. When the arbiter server receives the request for the decryption information, the arbiter server generates evidence of the request and sends the decryption information to the recipient. In this way, an evidentiary trail, that cannot be repudiated, can be used to establish that the recipient received and attempted to open the message.

REFERENCES:
patent: 5710816 (1998-01-01), Stork et al.
patent: 6009173 (1999-12-01), Sumner
patent: 6044463 (2000-03-01), Kanda et al.
patent: 6158003 (2000-12-01), Kara
patent: 6510513 (2003-01-01), Danieli
patent: 6532543 (2003-03-01), Smith et al.
patent: 6754661 (2004-06-01), Hallin et al.
Simmons, G. J., “A Protocol to Provide Verifiable Proof of Identity and Unforgeable Transaction Receipts”, May 1989, IEEE vol. 7, No. 4, pp. 435-447.
“Standard for the Format of ARPA Internet Text Messages”, Aug. 13, 1982, downloaded on Apr. 4, 2001 from http://www.ietf.org/rfc/rfc822.txt, pp. 1-46.
“Security Multiparts for MIME: Multipart/Signed and Multipart/Encrypted”, Oct. 1995, downloaded on Apr. 4, 2001 from http://www.ietf.org/rfc/rfc1847.txt, pp. 1-10.
Bruce Schneier, Applied Cryptography, Protocols, Algorithms, and Source Code in C, 2nd Edition, ((c) 1996, John Wiley & Sons, Inc.) pp. 1-74.
“Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet Message Bodies”, Nov. 1996, downloaded on Apr. 4, 2001 from http://www.ietf.org/rfc/rfc2045.txt, pp. 1-28.
“Hypertext Transfer Protocol—HTTP/1.1”, Jan. 1997, downloaded on Apr. 4, 2001 from http://www.ietf.org/rfc/rfc2060.txt, pp. 1-142.
“OpenPGP Message Format”, Nov. 1998, downloaded on Apr. 4, 2001 from http://www.ietf.org/rfc/rfc2440.txt, pp. 1-57.
“S/MIME Version 3 Message Specification”, Jun. 1999, downloaded on Apr. 4, 2001 from http://www.ietf.org/rfc/rfc2633, pp. 1-29.
“Ontario Court of Appeal Sets Rules for Contracts Entered into by Electronic Facsimile Transmission. Are E-Mail Contracts Affected?”, downloaded on Apr. 3, 2001 from http://www.ecommercecanada.net/Archives/Oct15/body_oct15.html, pp. 1-5.

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