Cryptography – Key management – Key escrow or recovery
Reexamination Certificate
2011-01-18
2011-01-18
Moore, Ian (Department: 2491)
Cryptography
Key management
Key escrow or recovery
C380S044000
Reexamination Certificate
active
07873170
ABSTRACT:
Provided are a method, system, and article of manufacture for maintaining keys removed from a keystore in an inactive key repository. A keystore includes active keys, wherein at least one active key in the keystore is associated with at least one storage device and available for encrypting and decrypting data with respect to the associated storage device. A request is received for an operation with respect to a specified active key that causes the specified active key to be removed as an active key from the keystore. The specified active key is indicated as inactive, wherein keys indicated as inactive are not available for use to encrypt and decrypt data. A request is received to restore one of the inactive keys to make available to decrypt and encrypt data for the at least one associated storage device associated with the requested inactive key. The requested inactive key to restore is indicated as active in the keystore, wherein the restored key and any other active key in the keystore associated with the at least one storage device with which the restored key is associated are available to be provided to use to encrypt and decrypt data with respect to the at least one storage device with which they are associated.
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Chang Shannon Hsinhen
Ngo Khanh Vi
International Business Machines - Corporation
Konrad Raynes & Victor LLP
Moore Ian
Shaw Brian
Victor David W.
LandOfFree
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