User:Dragonmencomputer

Chip Program Reverse Engineering

Chip program reverse engineeringhttp://www.pcbaclone.com/service/chipdecryption/ is also called chip program clone or chip decryption. Generally speaking, Microprogrammed Control Unit(MCU) provides users with internal EEPROM/FLASH to store programs and working data. In order to prevent unauthorized access or copies of programs in MCU, most MCUs have encryption lock positioning or encrypted byte. If encryption lock positioning is locked during programming, ordinary programmer can not read programs in MCU directly, which calls MCU encryption or chip encryption. With the aid of special devices or self-made devices, by various technical means, MCU attacker takes advantage of the defects of MCU chip design or software defects to extract vital information from chip and get MCU program, which is called chip decryption. Chip decryption is also named MCU decryption, MCU crack, chip crack and IC decryption, but these names aren’t very scientific, just as CPLD decryption and DSP decryption are usually called chip encryption. MCU is just one of the chips that can program; besides, DSP，CPLD，PLD，AVR，ARM also can program and encrypt. Some functional chips with encryption algorithm or manufacturer code verification prevent electronic products from being cloned.