Min Long1, *, Man Kong1, Sai Long1, Xiang Zhang2
CMC-Computers, Materials & Continua, Vol.65, No.2, pp. 1425-1436, 2020, DOI:10.32604/cmc.2020.011116
Abstract KLEIN-64 is a lightweight block cipher designed for resource-constrained
environment, and it has advantages in software performance and hardware
implementation. Recent investigation shows that KLEIN-64 is vulnerable to differential
fault attack (DFA). In this paper, an improved DFA is performed to KLEIN-64. It is
found that the differential propagation path and the distribution of the S-box can be fully
utilized to distinguish the correct and wrong keys when a half-byte fault is injected in the
10th round. By analyzing the difference matrix before the last round of S-box, the location
of fault injection can be limited to a small range.… More >
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