DNA-Chaos S-Box Generation for Modified Lightweight AES Algorithm for Data Packet Protection in MANET

Cryptography is an effective mechanism to protect data packet confidential from passive attack in mobile wireless AdHoc network. Especially in sensitive applications like secrecy conference meetings, military applications, etc. Advance encryption standard (AES) algorithm is one of the most secure algorithms used by many protocols and encryption systems. In this paper proposed modified AES algorithm to make lightweight and more suitable to implement on MANET and AdHoc networks. One the improving AES is generating new dynamic S-Box based hybrid chaotic system and DNA for SubByte transformation. The randomness test was performed on the output of proposed algorithm. The result of the tests shows that the proposed algorithm has good randomness and reduction in encryption and decryption time of AES algorithm.