Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2006-01-10
2006-01-10
Baron Jr., Gilberto (Department: 2132)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S153000, C713S156000, C713S183000, C380S030000, C380S282000
Reexamination Certificate
active
06986044
ABSTRACT:
The invention is to provide a group lock which is used in group units for encryption, decryption, and signature. A public key, private key, and common key are provided and the private key is encrypted by use of the common key. The common key is encrypted by use of each public key of the group/member. A group lock which includes the public key, a cryptogram of the private key, and a plurality of cryptograms of the common key is generated. The group/member acquires the group lock and decrypts the cryptograms of the common key by use of the private key of the subject itself to acquire the common key, and decrypts the cryptogram of the private key of the group lock to acquire the private key. The group/member acquires the cryptogram which is encrypted by use of the public key of the group lock sent to the group and decrypts the cryptogram by use of the decrypted private key.
REFERENCES:
patent: 4200770 (1980-04-01), Hellman et al.
patent: 5748736 (1998-05-01), Mittra
patent: 5852665 (1998-12-01), Gressel et al.
patent: 5867578 (1999-02-01), Brickell et al.
patent: 5953419 (1999-09-01), Lohstroh et al.
patent: 6052469 (2000-04-01), Johnson et al.
patent: 6118874 (2000-09-01), Okamoto et al.
patent: 6530020 (2003-03-01), Aoki
patent: 4-38029 (1992-02-01), None
patent: 7-134547 (1995-05-01), None
patent: 7-16693 (1995-06-01), None
patent: 7-297818 (1995-11-01), None
patent: 9-291420 (1997-11-01), None
patent: 11-143359 (1999-05-01), None
D. Bartram, “Prevue Assessment™ Technical Manual”, Jun. 1998, pp 1-227.
Careersteps, “Professional Web Resume”, reflecting information known at Aug. 30, 1999, pp 1, printed from http://www.careersteps.com.
Futurestep, “Futurstep: Learn More”, pp 1; “Futurestep: Learn More”, pp 1-3; “Futurestep: Working with Futurestep”, pp 1-3; “Name: Justan X Ample”, pp 1-3; “Futurestep: Desired Job Characteristics”, pp 1; reflecting information known at Aug. 30, 1999, 11 pages total, printed from http://www. futurestep.com.
Hire.com, “About Hire.com—What We Do” pp 1; “About Hire.com—Frequently Asked Questions for Candidates” pp 1-3; reflecting information known at Aug. 30, 1999, 4 pages total, printed from http://www.hire.com.
Hotjobs, “hotjobs.com—Investors' Overview” reflecting information known at Aug. 30, 1999, pp 1, printed from http://www.hotjobs.com.
Kforce, “kforce.com—Organization Network Services and Pricing”, reflecting information known at Aug. 30, 1999, pp 1-6, printed from http://www.kforce.com.
Baron Jr. Gilberto
Fuji 'Xerox Co., Ltd.
Nobahar A.
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