Ejaz Bakhsh
Advanced Encryption Standard (AES) algorithm is one on the foremost common and widely symmetric block cipher algorithm utilized in worldwide. In this paper we will do key expansion has an own particular structure to encrypt and decrypt sensitive data and is applied in hardware and software all over the world. It is extremely difficult to hackers to urge the important data when encrypting by AES algorithm. AES has the ability to deal with three different key sizes such as AES 128, 192 and 256 bit and each of these ciphers has 128-bit block size. In this paper will provide an summary of AES algorithm and explain different features of this key expansion details and class some previous researches that have done there on with compared to other process such as DES, RSA. This project will explain some modification of key modified in their frequency because AES contains different types od data. The new one key modified make more encrypted and also more secure as existing key expansion. Their will such operation as Substitute bye, Mix column, Sub byte and Add Round Key. Mix column operation is done on Matlab.
Article Details
Unique Paper ID: 149969

Publication Volume & Issue: Volume 7, Issue 2

Page(s): 165 - 168
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Volume 8 Issue 4

Last Date 25 September 2021

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