Modified VHDL Implementation of 128-Bit Rijndael AES Algorithm by Asymmetric Keys

Abstract

Using electronic means to transfer data exposes the data to risk of attack. The increasing usage of electronic media has pushed security into the spotlight. Cryptography’s relevance has risen dramatically in recent years as a result of the rise of electronic data transfers. This paper gives us a scenario about the commonly used and well reliable advanced encryption standard (AES) algorithm. It also throws light on the information about functional cipher operation. Since digital data is being exchanged at such a rapid rate, the security of information in data storage and transmission becomes significantly more important. The security of information transmitted over wireless networks is of the utmost importance. Security of the data is ensured in wireless communication by encryption and decryption of the data. Security is provided through encryption algorithms used in the transmission channels. Developed as a Federal Information Processing Standard (FIPS) of the United States, AES is an algorithm that can protect electronic data by encrypting it. The AES algorithm for cryptography is a block cipher that encrypts and decrypts information by means of asymmetric keys.