A FPGA-Based Wireless Security System

With the wireless communications technology in data security development, it increases the requirements for security and confidentiality, using the security management strategy and security technology faces new challenges. The use of encryption software for wireless communication has become the bottleneck of secure communication system. It is difficult to implement that Commercial MCU to complete large amounts of data encryption and decryption operations, while other control commands. FPGA-based programmable devices provide secure communications for efficient processing. However, if the secure communication system will be fully integrated into the FPGA, the system overhead and the chip cost will increase substantially, with the upgrade problems. This issue presents a technique relying on encryption, using the wireless channel for confidential data transmission method. The system uses AES-128 as the encryption algorithm, and uses the BCH algorithm for data protection. Hardware platform using the Xilinx Spartan-3AN FPGA family and 2.4GHz RF modules for the coprocessor, high-performance MCU for embedded controller.