PCB News - Explain the relationship between PCB copy board and chip decryption

The relationship betweenPCB copy board and chip decryption

PCB copy board and chip decryption are the two main branches of reverse engineering. One is the reverse research of printed circuit boards and the other is the reverse research of chips. Except for the same direction, the terms seem to have little relationship. In fact, it is not the case. The circuit board can be said to be the support of the chip and the provider of the electrical connection of the chip, and the chip is the core component of the electronic product, which is responsible for the functions of calculation and storage. Without the chip, the PCB circuit board has no use other than a "board". Therefore, in a successful case of board copying, PCB copy board and chip decryption should be "the two in one" and "the core and the core are printed together".

PCB circuit board

The concept of PCB copy board and chip decryption

PCB copy board is a reverse research technology, which is to obtain the PCB design circuit of an excellent electronic product through a series of reverse research techniques, as well as circuit schematics and BOM tables, that is, the technical documents of existing products The understanding and discussion of analysis, design ideas, structural features, process technology, etc. can be used for reference in the research and development of new products.

Chip decryption is a new type of reverse engineering. With the help of special equipment or self-made equipment, single-chip attackers use vulnerabilities or software defects in the chip design of the single-chip microcomputer. Through a variety of technical means, they can extract key information from the chip and obtain the inside of the single-chip microcomputer. Program; easier to understand refers to the technology, structural principle, manufacturing process, etc. used to research chips and crack chips.

The relationship between PCB copy board and chip decryption

Chip decryption is mainly used in PCB copy board. In addition to chip decryption, PCB copy board also includes technical concepts such as circuit board copy cloning, PCB schematic reverse push, BOM list production, PCB design and so on. Therefore, it can be said that PCB copy board and chip decryption are in the relationship of inclusion and inclusion. The decryption of the single-chip microcomputer can lead us to interpret the "soul" of electronic products-the chip. If the PCB copy board lacks the chip, it is like a fish leaving the water. Many low-quality copycats caused by PCB copying are due to the lack of the original chip or the lack of mastery of the essence after the chip is decrypted, resulting in a far cry from the original product.