【摘 要】
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PRINCE is a lightweight block cipher proposed at ASIACRYPT 2012,which is composed of a 12-round core cipher referred to as PRINCEcore and two key whitening
【出 处】
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第七届国际博士生论坛暨青年教师发展研讨会
论文部分内容阅读
PRINCE is a lightweight block cipher proposed at ASIACRYPT 2012,which is composed of a 12-round core cipher referred to as PRINCEcore and two key whitening layers.Therefore,the security of the cipher mainly depends on PRINCEcore.In this paper,we use some observations on M0 operation,a part of linear layer in the round function,to construct a 4-round impossible differential distinguisher.On the foundation of the distinguisher,we launch key recovery attacks on 6-round and 7-round PRINCEcore,after which attacks extended to same rounds PRINCE are presented with a higher complexity by guessing equivalent keys.The complexity of our attacks meet the security claims stated by the designers.
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