Power Analysis Attack on GIFT

• 1、Beijing University of Posts and Telecommunications

Abstract：GIFT is a new lightweight block cipher algorithm, which has become one of the most energy-efficient cipher algorithms at present. While its hardware implementation has been extensively studied, little effort has been made to analysis the security risks of its software. In this paper, power analysis have been used to verify its security. This paper select mutual information analysis which has less requirements for create leakage models, and template analysis which only needs few power traces for attack to simulate how attackers may use under different attack conditions. Experiments show that the original GIFT is vulnerable to power analysis attack when implemented in software. In particular, under the attack based on template analysis, only 9 traces needs be used by the attacker to obtain the key.

Keywords： Cryptography side-channel analysis GIFT template analysis mutual information analysis