VLSI Implementation of AES Algorithm in Cryptography Developed in Xilinx
Mrs. M. Saritha, S Ranjith., R Vishvanth., Vijay. R · International Journal of Advanced Research in Science Communication and Technology · 2023
In the present era of information processing through computers and access to private information over the internet like bank account information, even the transaction of money, and business deals through video conferencing, encryption of the messages in various forms has become inevitable. There are mainly two types of encryption algorithms, a private key (also called a symmetric key having a single key for encryption and decryption) and a public key(a separate key for encryption and decryption). In terms of computational complexity, a private key algorithm is less complex than a public key algorithm. The simple architecture of the private key algorithm attracts the VLSI implementation through the basic digital components like basic gates and flip-flops. Moreover, the high throughput architecture can be realized for the encryption of very large amounts of data, e.g., images and videos, in real-time. The National Institute of Standards and Technology (NIST) adopted Advanced Encryption Standard (AES) as the standard for the encryption and decryption of blocks of data. The draft is published under the name FIPS-197 (Federal Information Processing Standard number 197). AES is an asymmetric key block cipher. It encrypts data of block size 128 bits. The AES algorithm is used in diverse application fields like WWW servers, automated teller machines (ATMs), cellular phones, and digital video recorders