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Systems and methods for state signing of internet resources

  • US 7,861,087 B2
  • Filed: 08/01/2007
  • Issued: 12/28/2010
  • Est. Priority Date: 05/28/2003
  • Status: Active Grant
First Claim
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1. A method for an intermediary device to provide security between a client and server via state signing of resources controlled by policy, the method comprising the steps of:

  • (a) intercepting, by a device between a client and a server, a response from the server to a request of the client, the response comprising a plurality of application data items;

    (b) determining, via a policy, one or more application data items of the plurality of application data items to sign;

    (c) generating, by a state signer responsive to the policy, a signature for each of the determined one or more application data items;

    (d) incorporating, by the state signer, a control word having metadata to control signature verification in each of the one or more signed application data items;

    (e) transmitting, by the device, to the client in response to the request, a modified response having the signed one or more application data items and corresponding control words; and

    (f) receiving, by the device, a second request from the client and verifying the signature of the one or more signed application data items in accordance with the control word.

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