DYNAMIC ANALOG AUTHENTICATION
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United States of America Patent
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Issued Date -
Jul 25, 2013
app pub date -
Jan 20, 2012
filing date -
Jan 20, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Methods and apparatuses that receive an analog signal to provide a challenge to a device are described. The challenge may include a digital selection and an analog attribute of the analog signal. The analog attribute may be associated with an attribute value in an analog domain. Physical characteristics of the device may be evaluated according the analog challenge. A digital response may be generated as a result of the evaluation responding to the analog challenge. The combination of the digital challenge, the analog challenge, and the digital response may authenticate the device.
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