International Journal of Computer Applications
With the rapid growing of internet, information security becomes significant to protect secret and personal data. Encryption algorithm plays an important role for data security. In this paper, the authors have evaluated the performance of two symmetric key encryption algorithms: BEST and NJJSAA used for data encryption and Analyzed the encryption security, evaluated encryption speed for both algorithms. Experimental results show that BEST algorithm runs faster than NJJSAA algorithm while NJJSAA provide more security than BEST on the basis of Avalanche Effect.