Date Added: Jun 2011
Information Security has become an important issue in data communication. Encryption has come up as a solution, and plays an important role in information security system. This security mechanism uses some algorithms to scramble data into unreadable text which can be only being decoded or decrypted by party those possesses the associated key. These algorithms consume a significant amount of computing resources such as CPU time, memory and battery power and computation time. This paper performs comparative analysis of three algorithm; DES, AES and RSA considering certain parameters such as computation time, memory usages and output byte. A cryptographic tool is used for conducting experiments.