Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ulf Mattsson0
Thomas Valfridsson0
Date of Patent
July 19, 2011
0Patent Application Number
123780420
Date Filed
February 9, 2009
0Patent Primary Examiner
Patent abstract
The present invention relates to a method for encryption of the content in a database, for accomplishing increased protection against unauthorised access to the data. The method assures that every row and item is re-encrypted with a valid key. More specifically this process, the so-called KeyLife process, is executed every time a row is inserted, updated or retrieved after a scanning operation. The key life value, defining the number of days a key is valid for each item, could differ for the items, and could typically be between 30 and 90 days. The scanning operation, checking the validity of the presently used keys, the so-called KeyLife checking, is executed each time a new key generation is created.
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