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Security for network coding file distribution

  • US 20060282677A1
  • Filed: 07/28/2005
  • Published: 12/14/2006
  • Est. Priority Date: 07/02/2004
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • calculating an expected hash of an encoded block corresponding to a file by applying a hash function to a security parameter and a coefficient vector used to encode the encoded block;

    applying the hash function to the encoded block to determine the hash; and

    verifying validity of the encoded block based on a comparison of the hash and the expected hash.

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