Biclique key recovery for ARIA‐256
Shaozhen Chen, Tian‐min Xu · IET Information Security · 2014
In this study, combining the biclique cryptanalysis with the meet‐in‐the‐middle (MITM) attack, the authors present the first key recovery method for the full ARIA‐256 faster than brute‐force. The attack requires 2 80 chosen plaintexts, and the time complexity is about 2 255.2 full‐round ARIA encryptions.