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System and method for protecting master encryption keys

  • US 20070165844A1
  • Filed: 12/22/2005
  • Published: 07/19/2007
  • Est. Priority Date: 10/14/2005
  • Status: Active Grant
First Claim
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1. A method of protecting master transport encryption keys stored on a first computing device, wherein at least one master transport encryption key is used to secure data communications between the first computing device and a second computing device, the method comprising the steps of:

  • generating at least one temporary encryption key;

    encrypting the at least one master transport encryption key;

    storing the encrypted at least one master transport encryption key in a non-volatile store; and

    storing the at least one temporary encryption key in a volatile store, such that the at least one temporary encryption key is usable to facilitate decryption of data received at the first computing device from the second computing device while the first computing device is locked.

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