Improved Differential Fault Analysis of SOSEMANUK
Zhouqian Ma, Dawu Gu · 2012
We present a more efficient differential fault analysis (DFA) attack on SOSEMANUK, a new synchronous software-oriented stream cipher, which is contained in the current eSTREAM Portfolio. In the previous study, it is required around 6144 faults, 248SOSEMANUK iterations and 238.17bytes storage to recovers the secret inner state of the cipher. We offer an improved attack and show that only around 4608 faults, 235.16SOSEMANUK iterations and 223.46bytes storage are needed under the same or even weaker fault model. The simulation results of the proposed attack show that it takes about 11.35 hours when using a PC.