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Security for RAID systems

  • US 8,209,551 B2
  • Filed: 02/15/2008
  • Issued: 06/26/2012
  • Est. Priority Date: 02/15/2008
  • Status: Expired due to Fees
First Claim
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1. A machine implemented method comprising:

  • accessing a redundant array of independent drives (RAID) storage device, comprising a first drive and a second drive;

    segmenting a file data buffer into a plurality of segments including at least a first unencrypted segment, a second unencrypted segment, and a third unencrypted segment;

    performing a cryptographic operation on the first unencrypted segment to generate a first encrypted segment;

    computing a second parity syndrome between the second unencrypted segment and at least the third unencrypted segment concurrent with the cryptographic operation on the first unencrypted segment;

    computing a first parity syndrome between the first encrypted segment and the second parity syndrome; and

    striping the first encrypted segment and the second unencrypted segment on said first and said second drive respectively, the first drive being different from the second drive.

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