Digital signature computer, system, method, and storage...

Details Digital signature computer, system, method, and storage... Digital signature computer, system, method, and storage...

2006-01-31

2010-11-23

Revak, Christopher A (Department: 2431)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C380S037000

Reexamination Certificate

active

07840815

ABSTRACT:
A medium having stored thereon a digital signature program used to cause a digital signature generating computer to function as: a digest generation unit which generates a digest from each of a plurality of messages; a collective signature generation unit which generates a single signature, as a collective signature, to be collectively affixed to the digests of the plurality of messages; an additional information generation unit which generates, for one of the plurality of messages, additional information including the collective signature, and information about other message for which the collective signature is generated; and a transmission unit which adds the additional information to the one of the plurality of the messages, and transmits the message to a signature verifying computer for verifying a signature.

REFERENCES:
patent: 5719940 (1998-02-01), Ahn et al.
patent: 5748738 (1998-05-01), Bisbee et al.
patent: 5825880 (1998-10-01), Sudia et al.
patent: 5915024 (1999-06-01), Kitaori et al.
patent: 6772342 (2004-08-01), Hawthorne
patent: 6963971 (2005-11-01), Bush et al.
patent: 7117367 (2006-10-01), Carro
patent: 7194618 (2007-03-01), Suominen
patent: 7373506 (2008-05-01), Asano et al.
patent: 7512801 (2009-03-01), Akiyama et al.
patent: 2001209308 (2001-08-01), None
patent: 2003338815 (2003-11-01), None

Affiliated with

Also associated with

Rating

Digital signature computer, system, method, and storage... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital signature computer, system, method, and storage..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital signature computer, system, method, and storage... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4236086