The International Journal of Research in Engineering Technology and Management (IJRETM)
The AES algorithm was selected in 2000 by the US National Institute of Standards and Technologies (NIST) as a replacement to the Data Encryption Standard (DES) cryptographic algorithm. It is based on Rijndael algorithm which is a symmetric-key algorithm that processes fixed data of 128-bit blocks. The AES algorithm is suited for an efficient implementation on a wide range of processors. It can be used as encryption standard in embedded systems and especially the smart cards. There are many implementations of the AES reported in literature; some of them use Field Programmable Gate Arrays (FPGA) or Application Specific Integrated Circuits (ASIC) while others use smart card.