Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ulf Mattsson0
Thomas Valfridsson0
Date of Patent
February 10, 2009
0Patent Application Number
101290130
Date Filed
November 13, 2000
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A method for encryption of the content in a database, the method including the steps of detecting that a predetermined time period has elapsed, generating an unexpired encryption key, associating the unexpired encryption key with expiration information, scanning the database for an encrypted item, the encrypted item corresponding to a plaintext item, the encrypted item having been encrypted using an expired encryption key, and encrypting the plaintext item, using the unexpired encryption key, into a reencrypted item.
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