Method, system and computer program product for a trusted counter in an external security element for securing a personal communication device
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United States of America Patent
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Feb 13, 2007
Grant Date -
Apr 24, 2003
app pub date -
Jan 16, 2002
filing date -
Oct 18, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
Method, system and computer program product for implementing a trusted counter in a personal communication device. In particular, the method, system and computer program product utilizes cryptography and an external, read-write storage device that stores important state information that cannot be modified without detection. Using the present invention, the counter can be implemented in a personal even if state information is stored in an insecure storage device.
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