Establishing consistent, end-to-end protection for a user datagram

  • US 6,931,529 B2
  • Filed: 01/05/2001
  • Issued: 08/16/2005
  • Est. Priority Date: 01/05/2001
  • Status: Expired due to Fees
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First Claim
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1. A computer program product for providing end-to-end protection for datagrams in a computer networking environment, the computer program product embodied on one or more computer-readable media and comprising:

  • computer-readable program code means for protecting each of a plurality of network segments that comprise a network path from a datagram originator to a datagram destination, further comprising;

    computer-readable program code means for establishing a first protected network segment from the datagram originator to a first of one or more gateways in the network path;

    computer-readable program code means for cascading zero or more protected gateway-to-gateway segments along the network path, each of the gateway-to-gateway segments being cascaded from one of the gateways in the network path to a next successive one of the gateways; and

    computer-readable program code means for cascading a last protected network segment from a final one of the gateways to the datagram destination, wherein the final gateway is the first gateway if no gateway-to-gateway segments are required, wherein each of the gateways retains cleartext access to datagrams sent on the network path.

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