Anti-copying system embedded with configurable IP core and anti-copying method

Abstract

The invention discloses an anti-copying system embedded with a configurable IP core and an anti-copying method. The system comprises a protected embedded chip and an anti-copying circuit connected with the protected embedded chip. The configurable IP core is added to the anti-copying circuit, and partial programs in the embedded chip are stored in the anti-copying circuit, so that the anti-copying circuit is capable of assisting the embedded chip in completing partial operation work, the anti-copying circuit and the embedded chip are cooperated for forming the anti-copying system, and the problem that the protective capability of the embedded chip is poor, so that complete codes in the embedded chip are easily cracked by lawbreakers is solved. True random numbers are generated through an AD module reading method, and completely random timer interruption is adopted, so that the embedded chip can perform multiples times of encryption verification with the anti-copying circuit randomly in the operating process, and therefore a duplicator is prevented from simulating a starting signal for driving the embedded chip to normally operate. The anti-copying system and the anti-copying method have the advantages of flexible design and difficulty in cracking.

Description

technical field [0001] The invention relates to a device for protecting an embedded system and its internal codes from being illegally copied, in particular to an anti-copy system embedded with a configurable IP core to protect the core code of an embedded system, and an anti-copy system based on the anti-copy system Anti-copy method. Background technique [0002] In recent years, integrated circuit chip technology has developed rapidly, and the electronic product design industry has become more and more like the computer industry. The hardware solutions of many products have become a kind of public information. Under such an era background, embedded operating systems Most of the core technology of the embedded application software is concentrated in the embedded application software. Today, when the hardware technology is gradually mature and open, the protection of product design and copyright has actually transformed into the protection of the embedded application softwar...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a novel anti-copy system and anti-copy method with enhanced security. It adopts dynamic password (random data) encryption, comparison and authentication to communicate with the embedded chip for verification. This method can solve the problem of the line being monitored. problem, greatly increasing the difficulty of cracking

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