Performance analysis of stream and block cipher algorithms

Cryptographic algorithms play a big role in providing data security against malicious attacks. However, they are computationally intensive applications and consume large amount of CPU time. In mobile devices network security is very important, and different type of cryptographic algorithm is used to prevent malisons attack on the transmitted data. This work provides comparison between block and stream cipher algorithms, using different data sizes and key sizes. It provides evaluation between 12 commonly used algorithms. Based on our simulation results it can be seen that stream cipher algorithm in general perform better than block cipher algorithm with regards to CPU time required for encryption.