发明授权
US09262256B2 Using dark bits to reduce physical unclonable function (PUF) error rate without storing dark bits location
有权
使用暗位来减少物理不可克隆功能（PUF）错误率，而不存储暗位置
- 专利标题： Using dark bits to reduce physical unclonable function (PUF) error rate without storing dark bits location
- 专利标题（中）： 使用暗位来减少物理不可克隆功能（PUF）错误率，而不存储暗位置
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申请号： US14140243申请日： 2013-12-24
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公开(公告)号： US09262256B2公开(公告)日： 2016-02-16
- 发明人: Sanu K. Mathew , Sudhir K. Satpathy , Patrick Koeberl , Jiangtao Li , Ram K. Krishnamurthy , Anand Rajan
- 申请人： Sanu K. Mathew , Sudhir K. Satpathy , Patrick Koeberl , Jiangtao Li , Ram K. Krishnamurthy , Anand Rajan
- 申请人地址： US CA Santa Clara
- 专利权人： Intel Corporation
- 当前专利权人： Intel Corporation
- 当前专利权人地址： US CA Santa Clara
- 代理机构： Lowenstein Sandler LLP
- 主分类号： G06F21/00
- IPC分类号： G06F21/00 ; H04L29/06 ; G06F11/07 ; G11C7/24 ; G11C7/00 ; G06F7/58 ; H04L9/34
摘要：
Dark-bit masking technologies for physically unclonable function (PUF) components are described. A computing system includes a processor core and a secure key manager component coupled to the processor core. The secure key manager includes the PUF component, and a dark-bit masking circuit coupled to the PUF component. The dark-bit masking circuit is to measure a PUF value of the PUF component multiple times during a dark-bit window to detect whether the PUF value of the PUF component is a dark bit. The dark bit indicates that the PUF value of the PUF component is unstable during the dark-bit window. The dark-bit masking circuit is to output the PUF value as an output PUF bit of the PUF component when the PUF value is not the dark bit and set the output PUF bit to be a specified value when the PUF value of the PUF component is the dark bit.
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