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Content protection using block reordering

  • US 8,281,155 B1
  • Filed: 11/02/2000
  • Issued: 10/02/2012
  • Est. Priority Date: 11/02/2000
  • Status: Expired due to Fees
First Claim
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1. An apparatus comprising:

  • a storage device to store an original content item in multiple blocks, each block containing at least a single byte, the blocks stored in a logically linear fashion within the storage allocated for the content item;

    a key generator to generate a key according to an identifier value of another apparatus; and

    a reorderer to reorder the blocks of the original content item according to the key without reordering the bits within the blocks, the reordered blocks stored in a nonlinear fashion within the storage allocated for the reordered content item, wherein the reordered blocks include a first reordered block of a first block size and a second reordered block of a second block size which is different than the first block size.

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