发明名称 |
SYSTEM FOR ESTABLISHING A CRYPTOGRAPHIC KEY DEPENDING ON A PHYSICAL SYSTEM |
摘要 |
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. |
申请公布号 |
US2012072737(A1) |
申请公布日期 |
2012.03.22 |
申请号 |
US201013254356 |
申请日期 |
2010.02.10 |
申请人 |
SCHRIJEN GEERT JAN;TUYLS PIM THEO;HANDSCHUH HELENA |
发明人 |
SCHRIJEN GEERT JAN;TUYLS PIM THEO;HANDSCHUH HELENA |
分类号 |
G06F21/22;H03M13/05 |
主分类号 |
G06F21/22 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|