发明名称 |
Method of securing the test mode of an integrated circuit via intrusion detection |
摘要 |
An electronic circuit, including: a logic circuit having a plurality of logic cells; storage cells able to form a shift register, able to be connected to the logic cells; a connection control module having an input for the reception of an identification key, the module connecting the storage cells so as to form a test shift register when the receive input receives a valid identification key, and the module connecting the storage cells so as to form randomly a diversion circuit when the input does not receive a valid identification key. The invention allows the electronic circuit to be protected against fraudulent access in read or write mode. The invention also relates to a smart card including this electronic circuit.
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申请公布号 |
US2005172184(A1) |
申请公布日期 |
2005.08.04 |
申请号 |
US20050046216 |
申请日期 |
2005.01.28 |
申请人 |
BANCEL FREDERIC;HELY DAVID |
发明人 |
BANCEL FREDERIC;HELY DAVID |
分类号 |
G01R31/317;G01R31/3185;G06F12/14;G06F21/00;(IPC1-7):G06F7/38;G01R31/28;H03K19/173 |
主分类号 |
G01R31/317 |
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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