Dereplication encryption lock for software and hardware of embedded system

Abstract

The invention discloses a dereplication encryption lock for software and hardware of an embedded system. The dereplication encryption lock comprises an on-board member chip ID (identification) and software ID management component, a password and encryption program management component, an encryption and decryption component, a self-destruction and guard component, a processor chip with security verification and on-board port and control member chip. The on-board member chip ID (identification) and software ID management component is used for managing and controlling software and hardware in the system. The password and encryption program management component is used for generating secret keys and password exclusive to the system according to ID number of software and hardware, part number and artificial secret keys in the system. The encryption and decryption component is used for decrypting programs or data ciphertexts according to selected secret keys and encryption program to generate executable programs or data plaintexts. The self-destruction and guard component is used for performing safety detection and protection to chips in the system and preventing illegal tamper and replacement. The processor chip guarantees safe operation of programs needed by the system and cannot store any other programs or data except for own necessary serial number, starting code and response programs after power failure. The on-board port and control member chip is a port chipset which is used for finishing all functions of the system.

Description

technical field [0001] The invention is applied to the core software and hardware of the embedded system to prevent illegal duplication or imitation, especially to protect those key equipments related to international people's livelihood and having important strategic significance. Background technique [0002] At present, there are two technologies to prevent illegal copying or imitation of embedded systems. One is to use software encryption technology or hardware dongle to protect the program from illegal copying; the other is to use the chip's own encryption technology to protect Software binaries or source code are not read out. However, the above two techniques cannot completely eradicate such incidents. Due to the logic flaws in the technology, the loopholes of the chip can be found by testing the logic waveform, and the binary code can be read out by using these loopholes. Each chip has a corresponding timing defect when it is working, and the source code can be rea...

AI Technical Summary

Problems solved by technology

And each chip has a corresponding timing defect when it works, and the source code can be read from the chip by using this defect; at the same time, it is impossible to prevent a large number of wanton copying of hardware

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