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METHOD FOR SECURE STORAGE OF PLURAL KEYS IN DEVICE

  • US 20090262929A1
  • Filed: 01/15/2009
  • Published: 10/22/2009
  • Est. Priority Date: 05/27/2004
  • Status: Abandoned Application
First Claim
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1. A method for securely storing a plurality of keys in a device, the method comprising:

  • assigning the device with a random number, the random number being substantially unique to the device;

    generating an encryption key for encrypting each of the plurality of keys, the encryption key being generated by applying a one way function to the random number;

    encrypting one of the plurality of keys using the generated encryption key;

    securing the encrypted key by applying an XOR function to the encrypted key using the generated encryption key;

    storing the secured encrypted key in the device; and

    repeating the generating, encrypting, and securing steps for each of the remaining plurality of keys.

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