A fpga system encryption and parameter configuration method

Abstract

The invention relates to the field of communication and particularly relates to the field of FPGA (Field Programmable Gate Array) logic design. The invention particularly provides an encryption and parameter configuration method for an FPGA system. The system consists of the three parts of a CPU (Central Processing Unit), an FPGA and a CPLD (Complex Programmable Logic Device), wherein the CPLD is responsible for system encryption and system parameter configuration; a decryption module in the FPGA is responsible for system decryption, and the function starting-stopping control of the FPGA system is finished through enabling an FPGA functional module; system functional debugging and system updating can be finished through a JTAG (Joint Test Action Group) interface or an RJ45 interface. FPGA logic codes can be opened to a customer under the condition of realizing safe and reliable system encryption. Few FPGA logic resources are occupied, the system running efficiency is high, equipment updating and maintenance management can be finished through a local updating or remote updating method, and the intellectual property right protection and parameter configuration problems of CES circuit simulation series products are well solved.

Description

technical field [0001] The invention relates to the field of communication, in particular to the field of FPGA logic design. Background technique [0002] TDMoIP is an access device that carries TDM services through an IP network. It is widely used in 3G / 4G transmission networks to access 2G services to achieve compatibility and transition of 2G services. CES circuit simulation is the core technology of TDMoIP equipment. Due to the high technical difficulty, there are only a few companies in the world that have mastered the core technology of CES. When the R&D company develops the CES solution to form TDMoIP series products, how to protect the core technology is very critical. Encrypting the core technology of the system is particularly important. By comparing and analyzing conventional encryption schemes, it is found that the FPGA system encryption and parameter configuration method adopted is one of the most effective ways to protect the core technology of the system. ...

AI Technical Summary

Problems solved by technology

[0008] But DS28E01 is not suitable for the parameter configuration control of CES circuit simulation series products, and many times users only want to encrypt and control the FPGA system work, and do not need to control all running processes Perform encryption verification to reduce FPGA logic occupation and improve system resource utilization. At this time, the existing FPGA encryption method cannot well meet the above requirements

Images