发明名称 |
SYSTEM FOR ESTABLISHING A CRYPTOGRAPHIC KEY DEPENDING ON A PHYSICAL SYSTEM |
摘要 |
<p>In systems for establishing a cryptographic key depending on a physical uncloneable function (PUF) it may be a problem that internal information correlated with the cryptographic key is leaked to the outside of the system via a side-channel. To mitigate this problem a cryptographic system for reproducibly establishing a cryptographic key is presented. The system comprises a physical system comprising a physical, at least partially random, configuration of components from which an initial bit-string is derived. An error corrector corrects deviations occurring in the initial bit-string. Through the use of randomization the error corrector operates on a randomized data. Information leaking through a side channel is thereby reduced. After error correction a cryptographic key may be derived from the initial bit-string.</p> |
申请公布号 |
EP2404403(A1) |
申请公布日期 |
2012.01.11 |
申请号 |
EP20100703078 |
申请日期 |
2010.02.10 |
申请人 |
INTRINSIC ID B.V. |
发明人 |
SCHRIJEN, GEERT-JAN;TUYLS, PIM THEO;HANDSCHUH, HELENA |
分类号 |
H04L9/08;H04L9/06 |
主分类号 |
H04L9/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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