A Comparative Study of Some Symmetric and Asymmetric Key Cryptography Algorithms

Data security is very important in wireless network and for this cryptography plays a crucial role which means "secret writing". In Cryptography encryption decryption of data is done by using secret key to provide data confidentiality, data integrity and data authentication. This paper provide a comparative study between various encryption algorithm like AES, DES, RSA and DIFFIE-HELLMAN .Here we compare the different factors of both symmetric key and asymmetric key encryption algorithm.