Proposal for complex AES security using key generator and text permutation

Abstract EN

Advanced Encry ption Standard (AES) is a sy mmetric -key encry ption e ach of these ciphers has a 128-bit bloc k size, with ke y sizes of 128, 192 and 256 bits.

The AES cipher is specified as a number of repetitions of transformation rounds that convert the input plaintext into the final output of ciphertext.

Each round consists of several processing ste ps, including one that depends on the encryption key[1,2].

This research proposes a technique intende d to make the Advanced Encry ption Standard (AES) more safe and secure.

Through the generation of random key , and permutation key sites in each round, inste ad of the process of expanding key locations in addition to the proposed pe rmutation the plaintext be fore entering the encry ption and inverse permutation for resulting ciphertext.