发明授权
US07178039B2 Method and arrangement for the verification of NV fuses as well as a corresponding computer program product and a corresponding computer-readable storage medium
有权
用于验证NV保险丝的方法和装置以及相应的计算机程序产品和相应的计算机可读存储介质
- 专利标题: Method and arrangement for the verification of NV fuses as well as a corresponding computer program product and a corresponding computer-readable storage medium
- 专利标题(中): 用于验证NV保险丝的方法和装置以及相应的计算机程序产品和相应的计算机可读存储介质
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申请号: US10320268申请日: 2002-12-16
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公开(公告)号: US07178039B2公开(公告)日: 2007-02-13
- 发明人: Detlef Mueller
- 申请人: Detlef Mueller
- 申请人地址: NL Eindhoven
- 专利权人: NXP B.V.
- 当前专利权人: NXP B.V.
- 当前专利权人地址: NL Eindhoven
- 代理商 Kevin H. Fortin
- 优先权: DE10162306 20011219
- 主分类号: G06F12/14
- IPC分类号: G06F12/14
摘要:
The invention relates to a method and an arrangement for the verification of NV fuses as well as to a corresponding computer program product and to a corresponding computer-readable storage medium which can be used notably for the detection of attacks on the smart card security which modify EEPROM contents and hence also the contents of EEPROM fuses.During the reset phase the fuses are read from the EEPROM. The fuse values successively read out are then automatically verified. One possible implementation is, for example, to load the fuse values read out into a signature register, followed by comparison with a reference value. Appropriate security measures can be activated should the automatic verification indicate an error, for example, due to unauthorized modification of a fuse or attack on the boot operation.
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