We propose a variational quantum attack algorithm (VQAA) for classical advanced encryption standard (AES)-like symmetric cryptography, as exemplified by the simplified-data (S-DES). In VQAA, known ciphertext is encoded ground state of Hamiltonian that constructed through regular graph, and can be found using approach. designed ansatz cost function S-DES’s attack. It surprising sometimes VQAA ev...

Encryption algorithms are known to be computational intensive. Internet and networks applications growing very fast, so the needs to protect. Encryption plays the very important role in information security system. On the other side, the symmetric key algorithms consume a significant amount of computed resources such as speed, time, memory and cost. The symmetrical algorithms AES and DES as a s...

The paper gives a polynomial description of the Rijndael Advanced Encryption Standard recently adopted by the National Institute of Standards and Technology. Special attention is given to the structure of the S-Box. A Polynomial Description of the Rijndael Advanced Encryption Standard ∗ Joachim Rosenthal Department of Mathematics University of Notre Dame Notre Dame, Indiana 46556, USA e-mail: R...