Method and system for electronically securing an electronic device using physically unclonable functions
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United States of America Patent
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Oct 16, 2012
Grant Date -
Nov 13, 2008
app pub date -
Jul 17, 2007
filing date -
May 11, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
The invention is directed to a system for securing an integrated circuit chip used in an electronic device by utilizing a circuit or other entity to produce physically unclonable functions (PUF) circuit to generate encryption keys, such as an RSA public or private key. A PUF circuit, according to its name and configuration, performs functions that are substantially difficult to be duplicated or cloned. This allows the invention to provide a unique and extremely secure system for authentication. In operation, the stored parameters can be used to more efficiently and quickly authenticate the device without the need to run the usual more burdensome encryption key generation processes without compromising the level of security in the device. Such a system can be used to substantially eliminate the time to produce encryption keys when a user needs to authenticate the device at power up or other access point.
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