发明名称 |
Security Element and Methods for Manufacturing and Authenticating the Same |
摘要 |
A security element comprises at least one oscillating circuit (O1-On) and a digital signature (2). Each oscillating circuit (O1-On) comprises a capacitor (C1-Cn) as resonance frequency setting element wherein the capacitor (C1-Cn) consists of two electrodes (8, 10) which are spaced apart from each other and a dielectric (9) that is sandwiched between the two electrodes (8, 10). The capacitor (C1-Cn) of each oscillating circuit has a random capacitance value which randomness is caused by a non-uniform thickness (d) of the dielectric (9) and/or by an inhomogeneous dielectric material. The digital signature (2) comprises reference values indicative for the resonance frequencies (f1-fh) of the oscillating circuits wherein the reference values are digitally signed with a secret key.
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申请公布号 |
US2008314715(A1) |
申请公布日期 |
2008.12.25 |
申请号 |
US20060097520 |
申请日期 |
2006.11.29 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS, N.V. |
发明人 |
WOLTERS ROBERTUS ADRIANUS MARIA;JOHNSON MARK THOMAS;TUYLS PIM THEO |
分类号 |
G07D7/00;G06K19/067 |
主分类号 |
G07D7/00 |
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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