AES Encrypted FSK Generation at X-Band Frequency using a Single Reflex Klystron

作     者：Mohuya Chakraborty Amiya Kumar Mallick 

作者机构：Department of Information Technology Institute of Engineering and Management Sector V Salt Lake City Kolkata 700 068 India Formerly Department of Electronics & Communication IIT Kharagpur India 

出 版 物：《China Communications》 (中国通信（英文版）)

年 卷 期：2010年第7卷第3期

页      面：1-9页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

主　　题：Advanced Encryption Standard (AES) dual frequency generation FSK modulation FPGA Reflex Klystron VHDL 

摘      要：This paper describes a high security data transmission system over X-band microwave frequency. The paper has two parts. The first part deals with encryption of binary data by Advanced Encryption Standard (AES) using VHDL modeling of Field Programmable Gate Array (FPGA). The second part deals with a novel idea of transmitting the encrypted data by using a single klystron. This requires the simultaneous generation of a pair of two independent RF frequencies from a reflex klystron working for X-band frequency range. In this scheme, the klystron is suitably biased on the repeller terminal and superimposed on a train of AES encrypted binary data so as to create two RF frequencies one corresponding to negative peaks and the other one to the positive peaks of the data resulting in an Frequency Shift Keying (FSK) signal. The results have been verified experimentally.