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Method for securing a communication

  • US 7,607,012 B2
  • Filed: 10/01/2003
  • Issued: 10/20/2009
  • Est. Priority Date: 10/01/2003
  • Status: Active Grant
First Claim
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1. A method comprising:

  • computing an authentication code using a first key and a second key within a responder,transmitting both said second key and said authentication code from said responder to an initiator using a first communication channel, after computing said authentication code,transmitting said first key from said responder to said initiator using a second communication channel,computing a verification code using said first key and said second key within said initiator,comparing said verification code with said authentication code within said initiator, andauthenticating said responder as a correct communication partner if said comparing checks out,wherein said second key is a secret key and said first communication channel is a secure channel.

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