Chip Encryption Method
一种加密方法、芯片的技术,应用在仪器、电数字数据处理、内部/外围计算机组件保护等方向,达到增加成本及难度、操作安全可靠、保证秘钥唯一性的效果
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[0025] Below, in conjunction with accompanying drawing and specific embodiment, the present invention is described further:
[0026] refer to figure 1 , a chip encryption method is provided in the present embodiment, the method includes the following steps:
[0027] Step S1, obtaining the fuse value (fuse value) and trim value (trim value) of each chip, and setting an algorithm. The fuse value and trimming value can be obtained through testing or calculation by external equipment, and the algorithm can be designed according to actual needs. For example, the fuse value and trimming value can be obtained through testing equipment. The test equipment is an existing equipment, so its function and working principle will not be described in detail in this embodiment.
[0028] In step S2, the fuse value and trim value are used as algorithm parameters, and the algorithm is used to calculate the secret key of each chip, wherein the secret key of each chip is unique. Since the chip ...
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