Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Security kernel or utility
Reexamination Certificate
2011-08-30
2011-08-30
Abrishamkar, Kaveh (Department: 2431)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Security kernel or utility
C713S193000, C726S026000, C726S027000, C726S028000, C726S029000, C726S031000, C726S033000, C380S201000, C380S202000, C380S203000, C380S204000, C380S264000
Reexamination Certificate
active
08010790
ABSTRACT:
A block-level storage device is provided that implements a digital rights management (DRM) system. In response to receiving a public key from an associated host system, the storage device challenges the host system to prove it has the corresponding private key to establish trust. This trust is established by encrypting a secure session key using the public key. The host system uses its private key to recover the secure session key. The storage device may store content that has been encrypted according to a content key. In addition, the storage device may encrypt the content key using the secure session key.
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Blankenbeckler David L.
Gurkowski Mark J.
Hines Randal C.
Lee Lane W.
Abrishamkar Kaveh
DPHI, Inc.
Haynes & Boone LLP.
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