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Mobile communication device and method of operating thereof

  • US 9,497,221 B2
  • Filed: 09/12/2013
  • Issued: 11/15/2016
  • Est. Priority Date: 09/12/2013
  • Status: Active Grant
First Claim
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1. A mobile communication device comprising:

  • a first trusted platform module;

    a second trusted platform module;

    a processor; and

    a non-transitory storage medium comprising instructions that cause said processor to;

    establish a first root of trust for a first persona, the first persona comprising a first operating system and a first trusted execution environment;

    establish a second root of trust for a second persona, the second persona comprising a second operating system and a second trusted execution environment, wherein the first root of trust is separate from the second root of trust;

    store measurements defining the first root of trust for the first persona in the first trusted platform module;

    store measurements defining the second root of trust for the second persona in the second trusted platform module; and

    load the first persona and the second persona using the roots of trust for the first and second personas, wherein the first persona can access components of the mobile communication device according to the first root of trust and the second persona can access components of the mobile communication device according to the second root of trust.

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