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Secure signaling before performing an authentication and key agreement

  • US 10,588,019 B2
  • Filed: 11/07/2016
  • Issued: 03/10/2020
  • Est. Priority Date: 05/05/2016
  • Status: Active Grant
First Claim
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1. A method of wireless communication at a wireless communication device, comprising:

  • generating a secured query message based at least in part on a cryptography based security credential of the wireless communication device, wherein the secured query message comprises an indication of cipher suites supported by the wireless communication device and is generated prior to performing an authentication and key agreement (AKA) with a network;

    transmitting, to a network device, the secured query message to the network prior to performing the AKA with the network;

    receiving, from the network device, a response to the secured query message prior to performing the AKA with the network, wherein the response includes a network security credential;

    transmitting, to the network device, a first message including an encrypted pre-master secret based at least in part on the network security credential;

    receiving, from the network device, a second message based at least in part on the transmitted first message including the encrypted pre-master secret;

    determining whether the wireless communication device and the network device derived the same session key based at least in part on the received second message; and

    determining whether to perform the AKA with the network based at least in part on the determination of whether the wireless communication device and the network device derived the same session key.

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