Research On Mixed Encryption Algorithm Of ECC And AES Based On WSN

With the development of science and technology, electronic commerce rise sharply, peopleare more strict requirement for network security, cryptography is one of the important researchfield of network security, the current popular encryption physique is the elliptic curvecryptosystem. It belongs to a new type of public key cryptosystems, in the past the security ofpublic key encryption algorithm is mainly based the discrete logarithm problem and thedecomposition of large Numbers. The elliptic curve algorithm is faster, higher security requiredless resource-intensive and the characteristics of shorter key length. In addition, AES encryptionsystem as an excellent representative of private key encryption, with high calculation efficiency,strong resistance to capture, implementation is simple, the advantages of convenient and quick.In this paper, the main research work is as follows1. Four widely used and representative network security algorithm has been studied,elaborated the principle of four algorithms and processes, and comparative analysis of theadvantages and disadvantages of various algorithms. DES algorithm is simple and easy toimplement, but the key length is limited and has the weak key. AES algorithm is developed forreplacing the DES algorithm, the key of algorithm is variable length, and maximum length is256,It is easier to implement than DES in the hardware platform, but there are also the flaws ofsymmetric key. RSA algorithm as the public key encryption algorithm, safer than the first two,but It also has suffered questioned with the increased speed of computer hardware and thedevelopment of distributed computing. ECC algorithms(Elliptic curve cryptography, abbreviation forECC) required less time and safer than others and able to better deal with key management issues.2. Analysis the shortcomings of the traditional elliptic curve encryption algorithm. The mainoperation of the algorithm is the finite field scalar multiplication operation. scalar multiplicationoperation of traditional algorithms is to use binary addition, It’s disadvantage is that the algorithmefficiency will plummet when the value of the variable expanding, affecting the efficiency of theentire ECC algorithms. In this paper, It is proposed based on a novel based on wireless sensorfrobenius elliptic curve encryption algorithm under combined with the traditional elliptic curveencryption algorithm and frobenius paradigm, the new algorithm saves times, so that the nodeenergy consumption is reduced.3. combined the advantages of two classical algorithms ECC and AES, proposed mixingencryption algorithm of ECC and AES, using ECC algorithms of high security manage the key ofsymmetric encryption algorithm, using the AES encryption algorithm encrypt the plaintext, andintegrate HMAC message authentication algorithm. using the VC program design the algorithm, and simulation in the Windows environment. Using hybrid encryption algorithm to encryptwireless sensor network packets of different sizes repeated experiments, The results show thathybrid encryption algorithm security to implement than ECC and AES.