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Wireless secure device

  • US 7,224,801 B2
  • Filed: 10/09/2001
  • Issued: 05/29/2007
  • Est. Priority Date: 12/27/2000
  • Status: Active Grant
First Claim
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1. A computer implemented method performed by a host system of securely connecting a wireless user input device to the host system, the method comprising:

  • generating an encryption key and a transmission sequence, where the transmission sequence includes a first portion that represents the encryption key and a second portion that is a confirmation sequence and wherein the transmission sequence is generated in accordance with a check mechanism for verification of the transmission sequence by the wireless user input device;

    transmitting the transmission sequence to the wireless user input device;

    receiving an input from the wireless user input device, wherein the input includes an encrypted input portion encrypted by the wireless user input device using an encryption key the wireless user input device generated from the first portion of the transmission sequence;

    decrypting the encrypted input portion using the encryption key; and

    determining if the decrypted input portion matches the second portion of the transmission sequence that is the confirmation sequence.

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