Image Encription and Decription Based On Aes &Rc4
Naga Suman Arepalli · IOSR Journal of Electronics and Communication Engineering · 2012
In the today world, security is required to transmit confidential information over the network Security is also demanding in wide range of applications.Cryptographic algorithms play a vital role in providing the data security against malicious attacks.But on the other hand, they consume significant amount of computing resources like CPU time, memory, encryption time etc.Normally, symmetric key algorithms (same key use For encryption and decryption) and asymmetric key algorithms (different key use for both encryption and decry piton) as they are very fast in nature.Symmetric algorithms are classified as block cipher (AES) and stream ciphers (RC4) algorithms.In this paper, we compare the AES (block cipher) algorithm with different modes of operation and RC4 (stream cipher) algorithm in terms of CPU time, encryption time, memory utilization and throughput at different settings like variable key size and variable data packet size and develop both block diagram.