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搜索相关知识发现「固件提取」这个概念。除了上面的硬核方法。还有更方便的就是通过编程器来提取固件。
编程器淘宝有卖,买之前看看是否支持目标芯片。 还有一个 JTAG 协议,也是方便提取固件的。 发现一本开源图书 https://github.com/iot-security-wiki/IoT-Security-Wiki 看起来不错。 |
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看到一个究极硬核项目:https://github.com/travisgoodspeed/gbrom-tutorial
ROM 芯片用硝酸处理过后,在显微镜下拍摄。然后从照片提取出 ROM 存储的每一个比特。最终逆向出 ROM 存的程序。
另外,「Pulling Bits From ROM Silicon Die Images: Unknown Architecture」这篇文章更详细地讲解了其中的过程和原理。
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