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System and method for optimizing error detection to detect unauthorized modification of transmitted data

  • US 7,680,273 B2
  • Filed: 12/08/2004
  • Issued: 03/16/2010
  • Est. Priority Date: 12/08/2004
  • Status: Active Grant
First Claim
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1. A system for optimizing error detection to detect unauthorized modification of transmitted data, the system comprising:

  • a first encrypting device including;

    a first pseudo-random number generator;

    a second pseudo-random number generator;

    a first reversible function device operatively coupled to and responsive to the first pseudo-random number generator to re-order the first data stream to form a re-ordered data stream; and

    ,a first XOR function operatively coupled to and responsive to the second pseudo-random number generator to encrypt the re-ordered data stream to form a second data steam; and

    ,a first decrypting device operatively coupled to the first encrypting device, the first decrypting device configured to perform a re-ordering step and a decrypting step to the second data stream to form a third data stream substantially identical to the first data stream.

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