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Short term certificate management during distributed denial of service attacks

  • US 10,104,119 B2
  • Filed: 05/11/2016
  • Issued: 10/16/2018
  • Est. Priority Date: 05/11/2016
  • Status: Active Grant
First Claim
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1. A method of providing a short term certificate during a distributed denial of service attack on a network, the method comprising:

  • identifying, by a processor, a distributed denial of service attack on a network;

    executing, by the processor, a script to request a short term certificate in response to, and at the time of, identifying the distributed denial of service attack, wherein the network is associated with a first certificate and wherein the short term certificate has a predetermined duration that is less than a duration of the first certificate;

    receiving the short term certificate generated by a certificate server;

    updating a transport layer security record under domain name service (DNS) based authentication of named entities (DANE) according to the short term certificate;

    generating, by the processor, an instruction to redirect traffic from the network during the distributed denial of service attack to a protection service using the short term certificate and associated private key,wherein malicious traffic involved in the distributed denial of service attack is filtered by the protection service in response to the short term certificate; and

    wherein filtered traffic is provided from the protection service to the network.

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