Biclique Attack of the Full ARIA-256

  title={Biclique Attack of the Full ARIA-256},
  author={Shao-zhen Chen and Tian-min Xu},
  journal={IACR Cryptology ePrint Archive},
In this paper, combining the biclique cryptanalysis with the MITM attack, we present the first key recovery method for the full ARIA256 faster than brute-force. The attack requires 280 chosen plaintexts, and the time complexity is about 2255.2 full-round ARIA encryptions in the processing phase. keywords: Block Cipher; ARIA-256; Biclique structure 
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