Research And The Application Of Mixed Cryptosystem Base On ECC And AES

With the rapid development of Internet in the world, information security has been paid to more and more attention. The research and application on cryptology is the core of the information security. ECC systems which is a public-key system is characterized by higher safety property, faster speed, shorter key lengths and fewer computational resources for implementation than other former traditional public-key algorithms based on the discrete logarithm in finite fields or the great integer factorization problem. On the other hand the AES is a good symmetry cryptosystem with its advantages of simplicity, high efficiency and security.In this dissertation, a brief summary on cryptography is first given; and then reaserch the mathematical principles and algorithm realization of ECC and AES; Thirdly, present the mixed cryptosystem base on ECC and AES, and reaserch its safe performance, At the same time simulate its encryption and decryption procession. Finally, some applications of this mixed cryptosystem are given. All of the above this mixed cryptosystem is efficient and security, it can make up for the shortcomings of the other encryption system.