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Method and system for checking security of data received by a computer system within a network environment

  • US 5,991,401 A
  • Filed: 12/06/1996
  • Issued: 11/23/1999
  • Est. Priority Date: 12/06/1996
  • Status: Expired due to Fees
First Claim
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1. A method for checking security of data received by a computer system within a network environment, wherein said data is generated by a client computer system within said network environment, said method comprising the steps of:

  • decrypting an incoming encrypted packet received from a client computer system by utilizing a decryption key;

    encrypting said decrypted incoming packet by utilizing an encryption key previously provided to said client computer system, wherein said encryption key is also assumed to be employed by said client computer system to encrypt said incoming encrypted packet;

    determining whether or not a packet produced by said encrypting step is identical to said incoming encrypted packet; and

    in response to a determination that a packet produced by said encrypting step is identical to said incoming encrypted packet, accepting said decrypted incoming packet.

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