A Survey on Network Security and SecurityAuthentication using Biometrics

To create secure information transmission over the network cryptography is used. The algorithm particular for cryptography should complete the integrity protection condition, conventional information authentication and digital signatures. Key exchange algorithms, hash functions, PN numbers are used for encryption and decryption of data.. Here in our paper, we are studying present algorithms currently used for encryption. Cryptography has been emerged as an essential tool for data transmission. There are various techniques of cryptography, both asymmetric and symmetric. The review is complete on few of the additional common and also interesting algorithms of cryptography presently in use and their drawbacks and also benefits are also discussed. In this paper, it has been surveyed about current works on encryption techniques. Those methods of encryption are studied and also analyzed well to performance promote of the encryption approaches also to guarantee the security proceedings. This paper presents the performance evaluation of algorithms of the selected symmetric. The particular algorithms are AES, 3DES, Blowfish and also DES.