Research Of Encryption For The Security Of Mobile Communication

This paper takes an in-depth study into the security of mobile communication. Based on a thorough overview of several methods for audio security, two main algorithms, AES and ECC, are analyzed and implemented. AES is used for digital audio encryption, while ECC is used for procedure of key cooperation. A complete solution for security of mobile communication is proposed.The algorithm AES (Advanced Encryption Standard) is introduced firstly. The paper introduces the encryption and decryption procedure of AES in detail, analyzes the characteristic of this algorithm, and implements it in a streamline way instead of its internal turn operation. The paper also analyzes the internal procedure of turn operation, and realizes a more efficient implementation.The algorithm ECC (Elliptic Curve Cryptography) is studied secondly. The paper first introduces the mathematical background of ECC, and studies the principle of elliptical curves calculation. Then, it studies the principle and validity of ECC. Finally, it proposes a solution of encryption system based on ECC, including requirement analysis, parameter selection, and so on.Finally, this paper introduces the design and realization of a secure mobile terminal, including the selection of software and hardware platform and the realization of the software.