Wide Differential Fault Analysis on MIBS
Wu Yang · 2011
MIBS is a block cipher used in the implementation of lightweight cryptographic equipment such as RFID tag,and there has been no published paper on its security at present.This paper presented the MIBS algorithm and differential fault analysis principle,proposed a wide fault analysis method on MIBS,and verified it through simulation.Experiment results demonstrate:due to its Feistel structure and S-box feature,MIBS is vulnerable to wide fault attack,after injecting 32-bit fault to the 32th and 31th round left register,64-bit MIBS master key search space can be reduced to 21.70-bit,the full key can be recovered after 1 second brute-force-search,and the fault analysis method in this paper can provide some ideas on other block ciphers using S-box.