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Method and system for securely displaying and confirming request to perform operation on host computer

  • US 6,895,502 B1
  • Filed: 06/08/2000
  • Issued: 05/17/2005
  • Est. Priority Date: 06/08/2000
  • Status: Active Grant
First Claim
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1. A method for a client user remotely connected to a host computer by a client workstation to have securely displayed and to securely confirm that a request to perform an operation on the host computer was actually requested by the client user, the method comprising the steps of:

  • (1) in response to the request, generating a challenge that includes what operation to be performed on the host computer was requested, a nonce, and a query as to whether the client user made the request;

    (2) encrypting the challenge;

    (3) transmitting the encrypted challenge to a secure environment that contains the client user'"'"'s private key;

    (4) decrypting the challenge in the secure environment and securely displaying the decrypted challenge;

    (5) waiting for confirmation from the client user that securely confirms either that the client user did or did not make the request to perform the operation on the host computer;

    (6) if the client user confirms that;

    (a) the client user did not make the request, transmitting a reply encrypted with the host computer'"'"'s public key to the host computer that contains a negative response and the nonce;

    or (b) client user did make the request, transmitting a reply encrypted with the host computer'"'"'s public key to the host computer that contains a positive response and the nonce.

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