Research On Chinese Domestic Cipher Algorithms In Mobile Network Payment

The mobile payment network become more and more popular in our daily life,but the information security problem in the payment process can not be overlooked,need attention,after all,in the mobile Internet payment security problem always ranked in the first place.And the most important thing to ensure the security of payment is the application of cryptography.And now the mainstream cryptographic algorithms are abroad,as countries increasing emphasis on information security,especially put forward higher requirements on the safety of the financial sector,asked relevant departments to ensure the research and application of localization technologies of network information security,which laid the foundation for the large-scale application of Chinese domestic cipher algorithms.Therefore,the study of the Chinese domestic cipher algorithms in mobile network payment is becoming more and more important.This paper studies the characteristics and basic processes of mobile network payment,as well as the hidden dangers of the payment process.The study of the Chinese domestic cipher algorithms involves a certain basic knowledge of cryptography.Cryptography is the most widely used of the three kinds of core technology mainly includes symmetric encryption technology,asymmetric cryptography,hash algorithm.The security of payment is the core of the mobile network payment,and the algorithm is the foundation of security.This paper changes the parameter FK of the algorithm of SM4 and the fixed parameter CK,and increases the number of the arithmetic operations,next to the SM4 grouping algorithm and SM2 elliptic curve algorithm of the improved hybrid encryption,this paper proposes a hybrid encryption algorithm in the domestic based on the improved SM4 algorithm to encrypt plain text,cipher text generated by using SM2 the public key algorithm of SM4 algorithm encryption key,the cipher text and the encryption algorithm of SM4 after processing the key to send to each other,each other after receiving the information,the use of SM2 algorithm to the private key of the key of the SM4 algorithm for decryption process,and then get the keys to decrypt the cipher text,finally get the plain text.The improvement in this paper Microsoft Visual Studio 2012 platform using C++ language in this paper after SM4 encryption and SM2 asymmetric encryption algorithm hybrid encryption scheme for encryption software,simulation part of the mobile payment network data information in the use of C++ language,the encryption result or decryption results to achieve the desired effect.The hybrid encryption algorithm proposed in this paper is analyzed from two aspects,which are the efficiency of the algorithm and the security strength of the algorithm.Compared with other algorithms,the security is mainly measured by diffusivity and aliasing.The experimental results show that the proposed hybrid encryption algorithm has better performance and will be more suitable for mobile network payment.