Cryptography – Key management – Key distribution
Reexamination Certificate
2007-10-30
2007-10-30
Moise, Emmanuel L. (Department: 2137)
Cryptography
Key management
Key distribution
C380S277000, C380S285000, C713S155000, C713S156000, C713S168000, C705S067000
Reexamination Certificate
active
10452221
ABSTRACT:
A security architecture in which a security module is integrated in a client machine, wherein the client machine includes a local host that is untrusted. The security module performs encryption and decryption algorithms, authentication, and public key processing. The security module also includes separate key caches for key encryption keys and application keys. A security module can also interface a cryptographic accelerator through an application key cache. The security module can authorize a public key and an associated key server. That public key can subsequently be used to authorize additional key servers. Any of the authorized key servers can use their public keys to authorize the public keys of additional key servers. Secure authenticated communications can then transpire between the client and any of these key servers. Such a connection is created by a secure handshake process that takes place between the client and the key server. A time value can be sent from the key server to the client, allowing for secure revocation of keys. In addition, secure configuration messages can be sent to the security module.
REFERENCES:
patent: 6308266 (2001-10-01), Freeman
patent: 6317849 (2001-11-01), Patel
patent: 6484262 (2002-11-01), Herzi
patent: 6577734 (2003-06-01), Etzel et al.
patent: 6760752 (2004-07-01), Liu et al.
patent: 6810479 (2004-10-01), Barlow et al.
patent: 6981138 (2005-12-01), Douceur et al.
patent: 6981156 (2005-12-01), Stern et al.
patent: 7200868 (2007-04-01), Mattox et al.
patent: 2002/0104006 (2002-08-01), Boate et al.
patent: 2004/0158708 (2004-08-01), Peyravian et al.
patent: 2004/0210756 (2004-10-01), Mowers et al.
Broadcom Corporation
Moise Emmanuel L.
Nguyen Minh D.
Sterne Kessler Goldstein & Fox P.L.L.C.
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