Performance Evaluation for DES and AES Algorithms- An Comprehensive Overview

Now-a- days there is fast evolution of internet and network applications so information security is very much important for secure transmission of data over an electronic way. Cryptography plays a very important role in providing information security and protecting system from malicious attacks. It has many encryption algorithms to scramble the data and convert it to an unreadable format. Each algorithm differs based on few characteristics such as ability to protect from attacks, performance and speed, memory usage, power consumption. The main aim of designing a cryptographic algorithm is to accomplish security. Each algorithm differs by simulation time, memory usage and power consumption. In this work we evaluate two most commonly used symmetric algorithms namely DES (Data Encryption Standard), AES (Advanced Encryption Standard). A comparative analysis has been done using performance evaluation metrics of each algorithm based on input size. The metrics are encryption/decryption time, throughput, power consumption, memory consumption, simulation time.