Side-Channel Attack Security Risk Assessment Model Based on Mutual Information Game

Abstract The process of attack and defence of side channel attack can be regarded as the process of mutual information game, the two sides of the game are the cryptographic device designer (defence) and the enemy. The game goal of the defender is to reduce the local and global risks caused by side channel leakage by formulating relevant defence strategies; For the enemy, the goal of the game is just the opposite. From the perspective of making security strategy and reducing security risk, the mutual information game theory is introduced into the decision-making process of crypto chip designers (defenders) and enemies, and the influence of the choice of offensive and defensive strategy on security risk is investigated.