Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Central trusted authority provides computer authentication
Reexamination Certificate
2005-09-20
2005-09-20
Wright, Norman M. (Department: 2134)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Central trusted authority provides computer authentication
C713S156000, C713S169000, C713S170000
Reexamination Certificate
active
06948061
ABSTRACT:
A certificate validity verification engine is integrated into the logic of a secure token, in turn, making the use of a private key conditional upon the determination that the certificate for the corresponding public key is valid at that particular instant in time. In this manner, the existence of a digital signature that is verified with a certificate implies that the certificate was valid at the time the signature was created. The verification of the certificate's validity by the relying party is unnecessary, as the signature could not have been created had the certificate been invalid. The validity of a certificate is communicated at the time the signature was created, rather than at the time the signature was verified.
REFERENCES:
patent: 5535276 (1996-07-01), Ganesan
patent: 5546463 (1996-08-01), Caputo et al.
patent: 5781723 (1998-07-01), Yee et al.
patent: 5903878 (1999-05-01), Talati et al.
patent: 5982898 (1999-11-01), Hsu et al.
patent: 6035402 (2000-03-01), Vaeth et al.
patent: 6092202 (2000-07-01), Veil et al.
patent: 6233577 (2001-05-01), Ramasubramani et al.
patent: WO 98/52163 (1998-11-01), None
Rivest, Ronald L., Can We Eliminate Certificate Revocation Lists?, Financial Cryptography, Feb. 23-25, 1998, 178-183.
Lopez, et al., “Providing secure mobile access to information servers with temporary certificates.” Computer Networks, Nov. 10, 1999, , Pp. 2287-2292, vol. 31, No.21, Elsevier Science Publishers, B.V., Amsterdam, NL.
Certicom Corp.
Dowell Ralph A.
Dowell & Dowell , P.C.
Wright Norman M.
LandOfFree
Method and device for performing secure transactions does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and device for performing secure transactions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for performing secure transactions will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3385715