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Pseudo-random generation of matrices for a computational fuzzy extractor and method for authentication
Pseudo-random generation of matrices for a computational fuzzy extractor and method for authentication
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机译：用于计算模糊提取器的矩阵伪随机生成和认证方法
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摘要
A method for authenticating a first device is disclosed. In one embodiment, the method includes the steps of: receiving a helper bit string from a second device that is remote from the first device; measuring a first response bit string of a physical unclonable function of the first device with respect to a challenge bit string; subtracting the first response bit string from the helper bit string; reconstructing a random matrix using a pseudo-random number generator initialized with a seed; and decoding a result of the subtraction using the random matrix, the shared secret bit string being provided from the decoding if the helper bit string was encoded using a previously measured second response bit string that is within a threshold level of similarity to the first response bit string, the decoding outputting an error value otherwise.
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