%0 Journal Article %T Cryptography and State-of-the-art Techniques %A Mohiuddin Ahmed %A T. M. Shahriar Sazzad %A Md. Elias Mollah %J International Journal of Computer Science Issues %D 2012 %I IJCSI Press %X Cryptography is an indispensable tool for protecting information in computer systems. Modern cryptography has strong relation with various disciplines like mathematics, computer science and electrical engineering along with data security. There are tremendous applications of cryptography in recent times, like passwords, e-commerce, smart cards etc. In this paper we will focus on the state-of-the-art techniques and their efficiencies. %K Cryptography %K Cipher %K Symmetric-Key %K Public-key Data security %K Authentication. %K IJCSI %U http://www.ijcsi.org/papers/IJCSI-9-2-3-583-586.pdf