INTEGRATED CIRCUIT PROVISIONING USING PHYSICAL UNCLONABLE FUNCTION
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United States of America Patent
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Issued Date -
May 21, 2015
app pub date -
Nov 18, 2013
filing date -
Nov 18, 2013
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Abstract
A one-time programmable (OTP) memory of an integrated circuit is provisioned based on identifier data generated by a physical unclonable function (PUF) of the integrated circuit. The identifier data is used as part of cryptographic operations to secure provisioning of security information at an OTP memory of at the integrated circuit. Because of the physical characteristics of the PUF and its incorporation in the integrated circuit, the identifier information is unique to the integrated circuit. Accordingly, the provisioned security information is also unique to the integrated circuit. The OTP memory can therefore be securely provisioned at later stages of the integrated circuit manufacturing and configuration process, such as after the integrated circuit has been packaged or attached to a printed circuit board.
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