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Systems and methods for using object oriented expressions to configure application security policies

  • US 7,870,277 B2
  • Filed: 03/12/2007
  • Issued: 01/11/2011
  • Est. Priority Date: 03/12/2007
  • Status: Active Grant
First Claim
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1. In an appliance, a method of applying object-oriented expressions in a policy to specify structure in a payload of a packet stream received by the appliance, the method comprising:

  • (a) identifying, by an appliance intermediary to a client and a server, a policy comprising an object-oriented expression to evaluate with respect to a payload of a packet of a received packet stream;

    (b) assigning, by the appliance, values to a data structure specified by the object-oriented expression based on a portion of the payload;

    (c) performing, by the appliance, an evaluation of the object-oriented expression based on the assigned values;

    (d) altering, in response to the evaluation, the payload of the packet of the received packet stream; and

    (e) transmitting, by the appliance, the altered packet stream.

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