The techniques modern used to encrypt text data play an important role in preventing unauthorized access. The AES algorithm is widely used in various cryptographic applications, but coz the algorithm has been subjected to several successive attacks, the need is necessary to improve the algorithm and make it more powerful the algorithm.In dis search will be inserted plaintext 1024 will be divided into four blocks each Block consists of 256 bits and each Block will pass the four stages represent(substitution,shift,Mix column and round key).A new step will be added to the four stages of permutation. Where chaos theory is adopted in the permutation stage and the shift phase.DNA will be adopted at the phase of the Mix and add round key stage due to it's high storage capacity. The time taken in the coding and decoding in the proposal enhancement algorithm will take a few milliseconds. The output will be measured using a five statistical test and a 16NIST Test. The results showed excellent efficiency in terms of randomness used in the proposal, thus preventing the tractor of sensitive data in an unsafe environment.
Kadhim, Alaa and Ali, Rasha Subhi
"Enhancement AES based on 3D Chaos Theory and DNA Operations Addition,"
Karbala International Journal of Modern Science: Vol. 5
, Article 7.
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