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System and method for signature based data container recognition

  • US 8,219,821 B2
  • Filed: 03/27/2007
  • Issued: 07/10/2012
  • Est. Priority Date: 03/27/2007
  • Status: Active Grant
First Claim
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1. A computer-implemented method for signature based recognition of a data container, the method comprising:

  • creating, by a storage system associated with a security appliance, the data container;

    in response to creating the data container, generating, by the security appliance, a signature of the data container by examining encrypted contents of a plurality of the data blocks contained within the data container, wherein the signature is generated using a one-way function;

    associating, by the security appliance, the generated signature with an encryption key by creating an entry in a data container signature structure;

    storing, on the security appliance, the signature and associated encryption key for subsequent data container signature based recognition by storing the entry within the data;

    generating a new signature, when data in any of the one or more blocks utilized as the signature is modified, wherein the new signature is stored by the security appliance.

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