System, method and computer product for sending encrypted...

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C726S004000, C726S017000, C726S027000, C713S153000, C713S155000, C713S182000, C380S247000, C380S259000, C380S278000, C380S059000, C705S074000, C340S005800

Reexamination Certificate

active

07996673

ABSTRACT:
A system for encrypting and decrypting messages using a browser in either a web or wireless device or secure message client software for transmission to or from a web server on the Internet connected to an email server or message server for the situation where the sender does not possess the credentials and public key of the recipients. The encryption and decryption is conducted using a standard web browser on a personal computer or a mini browser on a wireless device, or message client software on either a personal computer or wireless devices such that messages transmitted to the web or wireless browser or message client software can be completed and encrypted and signed by the user such that encrypted and signed data does not require credentials and public key of the recipients. A method for delivering and using private keys to ensure that such keys are destroyed after use is also provided. A method of transmitting encrypted messages to a web or wireless browser or message client and decrypting and verifying such messages by recipients who do not possess or who are not enrolled in a PKI and do not have private keys. A method for authenticating the sender/user of the browser, and a method for accessing or generating public and private keys for encrypting and decrypting messages for recipients who are not enrolled in a public key infrastructure.

REFERENCES:
patent: 4200770 (1980-04-01), Hellman et al.
patent: 5003405 (1991-03-01), Wulforst
patent: 5136647 (1992-08-01), Haber et al.
patent: 5343529 (1994-08-01), Goldfine et al.
patent: 5345506 (1994-09-01), Tsubakiyama
patent: 5410693 (1995-04-01), Yu et al.
patent: RE34954 (1995-05-01), Haber et al.
patent: 5500513 (1996-03-01), Langhams et al.
patent: 5559888 (1996-09-01), Jain et al.
patent: 5615268 (1997-03-01), Bisbee et al.
patent: 5649185 (1997-07-01), Antognini et al.
patent: 5671282 (1997-09-01), Wolff et al.
patent: 5680460 (1997-10-01), Tomko et al.
patent: 5699427 (1997-12-01), Chow
patent: 5715454 (1998-02-01), Smith
patent: 5748738 (1998-05-01), Bisbee et al.
patent: 5758069 (1998-05-01), Olsen
patent: 5758358 (1998-05-01), Ebbo
patent: 5781629 (1998-07-01), Haber et al.
patent: 5802299 (1998-09-01), Logan et al.
patent: 5832091 (1998-11-01), Tomko et al.
patent: 5872848 (1999-02-01), Romney et al.
patent: 5887133 (1999-03-01), Brown et al.
patent: 5890177 (1999-03-01), Moody et al.
patent: 5897643 (1999-04-01), Matsumoto
patent: 5898836 (1999-04-01), Freivald et al.
patent: 5937159 (1999-08-01), Meyers et al.
patent: 5948057 (1999-09-01), Berger et al.
patent: 5991876 (1999-11-01), Johnson et al.
patent: 5995939 (1999-11-01), Berman et al.
patent: 6105012 (2000-08-01), Chang et al.
patent: 6199052 (2001-03-01), Mitty et al.
patent: 6678821 (2004-01-01), Waugh et al.
patent: 2001/0014158 (2001-08-01), Baltzley
patent: 2002/0007453 (2002-01-01), Nemovicher
patent: 2002/0023208 (2002-02-01), Jancula
patent: 2002/0023213 (2002-02-01), Walker
patent: 2002/0023220 (2002-02-01), Kaplan
patent: 2002/0059144 (2002-05-01), Meffert et al.
patent: 2002/0129238 (2002-09-01), Toh et al.
patent: 2003/0046362 (2003-03-01), Waugh et al.
patent: 2350321 (2001-06-01), None
patent: 0 461 059 (1991-12-01), None
patent: 0 789 361 (1997-08-01), None
patent: 0 798 619 (1997-10-01), None
patent: 0 859 488 (1998-08-01), None
patent: 1267516 (2002-12-01), None
patent: 08137938 (1996-05-01), None
patent: WO 98/02968 (1998-01-01), None
patent: WO 99/53408 (1999-10-01), None
patent: WO 01/97089 (2001-12-01), None
“Enabling Email Confidentiality through the use of Opportunistic Encryption,” Garfinkel, MIT Laboratory for Computer Science, ACM International Conference Proceeding Series; vol. 130, Proceedings of the 2003 annual national conference on Digital government research, Digital Government Society of North America, 2003.
“An Introduction to Cryptography,” Network Associates, Inc. and its Affiliated Companies, PGP, Version 6.5.1, Copyright © 1990-1999, http://www.pgpi.org/doc/guide/6.5/en/intro/.
“An improved e-mail security protocol,” Schneier et al., Computer Security Applications Conference, 1997. Proceedings., 13th Annual, pp. 227-230, Dec. 8-12, 1997.
“OpenPGP Message Format,” Callas et al., Network Working Group, RFC 2440, Nov. 1998.
“A Review of the Diffie-Hellman Algorithm and its Use in Secure Internet Protocols,” Carts, SANS Institute, InfoSec Reading Room, Nov. 5, 2001.
“Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile,” Houslet et al., Network Working Group, RFC 3280, Apr. 2002.
“An internet key exchange protocol based on public key infrastructure,” Jian-ming et al., Journal of Shanghai University, Shanghai University Press, vol. 8, No. 1, SpringerLink, Mar. 2004.
“Diffie-Hellman Key Agreement Method,” Rescorla, Network Working Group, RFC 2631, Jun. 1999.
“PKCS #3: Diffie-Hellman Key-Agreement Standard,” RSA Laboratories, RSA Data Security Inc., RSA Laboratories Technical Note, Version 1.4, Nov. 1, 1993.
Irish Times, New Internet browser has 128-bit encryption security, Sep. 25, 1998, p. 61.
Introduction to SSL, Netscape Communications Corporation, 1998, downloaded from http://developer.netscape.com/tech/security/ssl/howitworks.html.
How SSL Works, Netscape Communications Corporation, 1999, downloaded from http:// developer.netscape.com/docs/manuals/security/sslin/contents.htm.
Stallings W: “S/MIME: E-mail gets secure” Byte, McGraw-Hill Inc. St. Peterborough, U.S., vol. 23, No. 7, Jul. 1, 1998, pp. 41-42, XP000774260 ISSN: 0360-5280.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

System, method and computer product for sending encrypted... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System, method and computer product for sending encrypted..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System, method and computer product for sending encrypted... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2677100

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.