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Method for chip decryption
At present, there are two kinds of chip decryption methods, one is based on software, known as non-invasive type attack, to use some software, such as homemade equipment similar to the programmer, this method does not destroy the master (after decryption chip is not encrypted); another is based on hardware and software, called the invasion to attack, this method needs to peel the master (cover or call it decapsulation), and then do the circuit modifications (usually called FIB:focused ion beam), the destruction of the chip structure and chip shape tube core line only affects the encryption function, does not change the function of the chip itself.
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