HARDWARE-BASED KEY GENERATION AND RECOVERY
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Abstract
A system and method of recovering encoded information contained in a device by storing and retrieving at least part of the necessary decoding data by setting and measuring the physical characteristics of the device. Storage and recovery options include, but are not limited to, measurement of electronic or optical characteristics of electrically or optically conductive portions of the device using a range of measurement techniques that include, but are not limited to, time-domain reflectometry.
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Citations
66 Claims
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1-46. -46. (canceled)
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47. A method of recovering information embedded in a medium, the method comprising:
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measuring a physical characteristic of the medium between a beginning point and an end point; generating a value in response to measuring the characteristic; and generating a representation of the embedded information based on the generated value by encoding said generated value. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55, 56)
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57. An apparatus for recovering information embedded in a medium, the apparatus comprising:
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a measurement unit that measures a physical characteristic of the medium between a beginning point and an end point; a value generator that generates a value based on the measured characteristic; and an information recovery portion that generates a representation of the embedded information based on the generated value by encoding said generated value. - View Dependent Claims (58, 59, 60, 61, 62, 63, 64, 65, 66)
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Specification