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System and method for providing masquerade protection in a computer network using hardware and timestamp-specific single use keys

  • US 5,717,756 A
  • Filed: 10/12/1995
  • Issued: 02/10/1998
  • Est. Priority Date: 10/12/1995
  • Status: Expired due to Fees
First Claim
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1. A method for providing masquerade protection in a computer network, comprising:

  • executing a one way hash function having an output space with guaranteed output space duplicates, comprising;

    seeding a pseudo random number generator function with a number corresponding to said one or more hardware characteristics; and

    wherein said session key is generated from a number generated from said seeded pseudo random number generator function;

    generating a session key with a first machine as a function of a timestamp and one or more hardware characteristics unique to said first machine;

    transmitting said session key over said network from said first machine through intermediate machines without said masquerade protection to said second machine;

    generating a plurality of locks with said second machine as a function of said timestamp and said hardware characteristics;

    testing with said second machine whether said session key matches one of said plurality of locks; and

    granting access from said first machine to said second machine when said session key matches said one of said plurality of locks.

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