	US 7,546,453 B2
	Certificate management and transfer system and method
Herbert A. Little, Waterloo (Canada); Neil P. Adams, Waterloo (Canada); David F. Tapuska, Waterloo (Canada); Michael S. Brown, Waterloo (Canada); Michael G. Kirkup, Kingston (Canada); and James A. Godfrey, Waterloo (Canada)
Assigned to Research In Motion Limited, Waterloo (Canada)
Appl. No. 10/480,615 PCT Filed Jun. 12, 2002, PCT No. PCT/CA02/00868 § 371(c)(1), (2), (4) Date Dec. 11, 2003, PCT Pub. No. WO02/101580, PCT Pub. Date Dec. 19, 2002.
Claims priority of provisional application 60/297681, filed on Jun. 12, 2001.
Claims priority of provisional application 60/365533, filed on Mar. 20, 2002.
Prior Publication US 2004/0171369 A1, Sep. 02, 2004
Int. Cl. H04L 9/00 (2006.01); H04L 9/32 (2006.01); G06F 11/30 (2006.01); G06F 12/14 (2006.01); G06F 17/30 (2006.01); G06K 9/00 (2006.01); G06F 15/16 (2006.01); G06F 14/177 (2006.01)

U.S. Cl. 713—156 [713/157; 713/158; 713/170; 709/217; 709/221; 726/2; 726/27]

27 Claims

1. A method of Certificate (Cert) management and transfer between a computer system having a first data transfer interface and a wireless communication device enabled for communications in a wireless communication network and having a second data transfer interface compatible with the first data transfer interface, the method comprising the steps of:

establishing communications between the computer system and the wireless communication device via the first data transfer interface and the second data transfer interface;

checking at the computer system status of each Cert stored at the wireless communication device to detect expired, revoked or invalid Certs in a data store;

retrieving by the computer system a new Cert for each detected expired, revoked or invalid Cert; and

transferring each new Cert from the computer system to the wireless communication device,

wherein a transferred new Cert is used to handle messages communicated via the wireless communication network that are received from or to be transmitted to remote entities whose communications are associated with the transferred new Cert.