Information security – Prevention of unauthorized use of data including prevention... – Access control
Reexamination Certificate
2007-12-18
2007-12-18
Sheikh, Ayaz (Department: 2131)
Information security
Prevention of unauthorized use of data including prevention...
Access control
C726S026000, C713S156000, C705S051000, C705S054000, C705S055000, C705S056000, C705S057000
Reexamination Certificate
active
09940026
ABSTRACT:
A system and method is provided for authenticating a device. A method includes receiving a certificate from the device, the certificate including a plurality of fields, including a field holding a digital signature from a certifying authority, verifying the digital signatures in the certificate, the verifying including at least one of verifying the certifying authority digital signature using the certifying authority public key; and verifying a device digital signature using a device public key, and receiving validation data from a source, the validation data identifying one or more data in the certificate as valid or invalid according to predetermined criteria, and if the digital signatures are verified and validated, transmitting a session key to the device to establish a secure communication channel.
REFERENCES:
patent: 5922074 (1999-07-01), Richard et al.
patent: 5991399 (1999-11-01), Graunke et al.
patent: 6134551 (2000-10-01), Aucsmith
patent: 6389403 (2002-05-01), Dorak, Jr.
patent: 6389538 (2002-05-01), Gruse et al.
patent: 6418421 (2002-07-01), Hurtado et al.
patent: 6760752 (2004-07-01), Liu et al.
patent: 7036011 (2006-04-01), Grimes et al.
patent: 2002/0002674 (2002-01-01), Grimes et al.
patent: 2002/0012432 (2002-01-01), England et al.
patent: 2002/0107803 (2002-08-01), Lisanke et al.
patent: 2003/0046238 (2003-03-01), Nonaka et al.
patent: 2003/0105718 (2003-06-01), Hurtado et al.
patent: 2003/0105720 (2003-06-01), Ishibashi
patent: 2004/0123104 (2004-06-01), Boyen et al.
“A Technical Overview of Windows Media DRM 10 for Devices,” Sep. 2004, Microsoft Corporation; pp. 1-16.
Feldman Timothy R.
Kiwimagi Gary G.
Lee Lane W.
Rayburn Douglas M.
Abrishamkar Kaveh
DPHI Acquisitions, Inc.
Hallman Jonathan W.
MacPherson Kwok & Chen & Heid LLP
Sheikh Ayaz
LandOfFree
Host certification method and system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Host certification method and system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Host certification method and system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3895966