Research And Application Of Mixed Cryptosystem Based On The AES And Elliptic Curve Cryptography

Along with the electronic commerce widespread application, the networkinformation security changes more and more importantly, but the network informationsecurity core lies in the password technology. Elliptic Curve Cryptography (ECC)systems which is a public-key systems is characterized by higher safety property,faster speed, shorter key Lengths and fewer computational resources forimplementation thanother former traditional public-key algorithms based on thediscrete logarithm infinite fields or the great integer factorization problem. On theother hand, the Advanced Encryption Standard is a good symmetry cryptosystemwith its advantages of simplicity, high efficiency and security.The present data encryption systems are analyzed in the dissertation to proposethe mixed cryptosystem based on the AES and Elliptic Curve Cryptography, whichwill actualize encryption of data, digital signature and identification with highefficiency in Internet communication, and solve the problem of antinomy of speed andsecurity in cryptosystem. First, this dissertation researches and analyzes on thethought, the method and ecology and field of application of many kinds of dataencryption technology show the mathematical description to symmetry cryptogramand public key cryptogram and its characteristics based on briefly on the currentsituation of the information security and the basic notion as well as mathematicalmodel of data Encryption technology; Secondly, the mixed cryptosystem based onAES and ECC is build forward in according with the characteristic of the encryptionmethod of the data the detailed discussion is hold on two mathematical principles,algorithm realization, safe performance, etc. At the same time its work flow is alsogiven; Finally, the plan which is applied to the security email system of SouthwestTraffic Network is elaborated.The advantages of the ECC cryptosystem such asshort-key, low expenses, low request of the band, the quick speed of calculation andthe high superiority of AES algorithm effectively solute the problem of theconfidentiality, the personal identification, the integrity and the Non-repudiation ofEmail.