Breakdown-based physical unclonable function
First Claim
1. A method of implementing a physically unclonable function, the method comprising:
- providing a device comprising at least one electronic structure, each electronic structure comprising a dielectric,generating an electrical breakdown of the dielectric such that a conductive path is formed, in each of the at least one electronic structure, through the dielectric at a random position,determining, for each of the at least one electronic structure, a distinct value of a set comprising at least two predetermined values, wherein the distinct value is determined by the position of the conductive path through the dielectric of the electronic structure.
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Abstract
A device and a method for implementing a physically unclonable function is disclosed. In one aspect, the device includes at least one electronic structure including a dielectric. A conductive path is formed at a random position through the dielectric due to an electrical breakdown of the dielectric, or the electronic structure is adapted for generating an electrical breakdown of the dielectric such that the conductive path is formed through the dielectric at a random position. The at least one electronic structure is adapted for determining a distinct value of a set comprising at least two predetermined values. The distinct value is determined by the position of the conductive path through the dielectric.
15 Citations
20 Claims
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1. A method of implementing a physically unclonable function, the method comprising:
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providing a device comprising at least one electronic structure, each electronic structure comprising a dielectric, generating an electrical breakdown of the dielectric such that a conductive path is formed, in each of the at least one electronic structure, through the dielectric at a random position, determining, for each of the at least one electronic structure, a distinct value of a set comprising at least two predetermined values, wherein the distinct value is determined by the position of the conductive path through the dielectric of the electronic structure. - View Dependent Claims (2, 3)
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4. A PUF device for implementing a physically unclonable function, the device comprising:
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at least one electronic structure, each electronic structure comprising a dielectric; and a conductive path through the dielectric at a random position, wherein each electronic structure is configured to output a distinct value of a set comprising at least two predetermined values, and wherein the distinct value is determined by the position of the conductive path through the dielectric. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification