A: The process:
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Microcontroller decryption is generally hardware related. Only a few traditional 51 microcontrollers can be read down directly by the programmer after cracking. Now many microcontrollers (including the enhanced 51 microcontroller) are using a physical process to encrypt the program \"hidden\" in the chip, the general treatment of this kind of microcontroller only open the chip with professional instruments to crack.
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Single-chip decryption is a very loaded thing, first of all, you need to oxidize the surface of the chip package and decrypt it with professional equipment.
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The first is to dissolve the chip package completely, exposing the metal wiring. The chip needs to be attached to the test fixture and operated with the help of a binding table.
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The second is to remove only the plastic packaging on top of the silicon core. In addition to the need to have a certain amount of knowledge and necessary skills of the attacker, it also requires personal wisdom and patience, but the operation is relatively convenient and completely operated in the family.
At present, the technology of cracking microcontroller has been very mature, so it can be easily completed microcontroller decryption.
First of all, you need to know the model and manufacturer of the target microcontroller, and then use professional decryption equipment or software to crack it. The specific workflow of
decryption includes chip copy, code extraction, reverse analysis and code modification.
These steps require highly specialized skills and experience, otherwise it is difficult to succeed. However, it should be noted that microcontroller decryption is illegal and will violate intellectual property rights, so it is necessary to keep in mind the legal risks when carrying out microcontroller decryption.