A DYNAMIC RANDOM ADVANCED ENCRYPTION STANDARD (DR-AES) -A NEW SOLUTION

*Adamu, M., Kolo¹, H., Isah², A.D., Gonna, I.S.

ABSTRACT

The Advance Encryption Standard (AES) is a widely used encryption algorithm that provides strong protection for sensitive data. The AES is the most popular symmetric cryptographic scheme that uses the same key for encryption and decryption process. However, the conventional AES suffers from key distribution and resources consumptions problem. One of the key performance issues of the traditional AES algorithm is its complexity and speed of execution. These issues made AES unsuitable for real-time applications and applications that required less complexity. This paper proposes anew enhance AES encryption scheme called Dynamic Random Advance Encryption Standard (DR-AES) and implement in Matlab environment. The DR-AES introduces randomness into the encryption process, making it more difficult for attackers to launch certain types of attacks and also reduced number of rounds to reduce the complexity of AES and make it suitable for less complex and real-time applications. The performance of the DR-AES is far better in terms of encryption and decryption operation when compared with the conventional AES. From a security point of view, the proposed DR-AES complies with Kerckhoff’s principle. This means the scheme has open design and the security provided by the DR-AES depends only on the secrecy of the encryption key.

Keywords: Advanced Encryption Standard, Cryptography, Dynamic Encryption, Cipher Text, Plain Text, Encryption, Decryption.