Method and apparatus for establishing a secure connection over a one-way data path

DC CAFC
  • US 6,317,831 B1
  • Filed: 09/21/1998
  • Issued: 11/13/2001
  • Est. Priority Date: 09/21/1998
  • Status: Expired due to Term
First Claim
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1. A method for securely transmitting data between a client and a server over a narrowband channel, where the client and server are connectable by not only the narrowband channel but also by a wideband channel, said method comprising the acts of:

  • connecting the client and server over the wideband channel;

    exchanging security information between the client and server over the wideband channel;

    encrypting data to be transmitted from the server to the client using the security information at the server; and

    transmitting the encrypted data from the server to the client over the narrowband channel.

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