Nowadays, network security is increasing rapidly and becoming an important and challenging issue. Information and internet security threats and attacks are becoming difficult to be detected. Therefore, encryption has come up as a solution, and plays an important role in information security system. Many techniques are needed to protect the shared data. In this paper we implemented four encrypt techniques AES, DES, 3DES and E-DES algorithms and compared their performance. A comparative analysis on the above symmetric encryption algorithms has been made. These algorithms consume a significant amount of computing resources such as CPU time, memory and battery power. Experiments results are given to analyses the effectiveness of each algorithm. The comparison is made on the basis of these parameters: speed, block size, and key size etc. Educational-DES has better performance than other DES, 3DES, and AES algorithms.
