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System and method of lawful access to secure communications

  • US 9,264,227 B2
  • Filed: 01/11/2013
  • Issued: 02/16/2016
  • Est. Priority Date: 01/12/2012
  • Status: Active Grant
First Claim
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1. A method performed by an initiator KMS for generating an encryption key, the method comprising:

  • receiving a RANDRi used in generation of the encryption key, wherein the RANDRi is generated at an initiator UE;

    receiving, from a responder KMS, a key resolution request; and

    sending the RANDRi to the responder KMS, wherein the responder KMS is configured to generate the encryption key using the RANDRi,wherein the initiator UE is in communication with the initiator KMS different from the responder KMS.

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