使用并行替代运算的差分实验
Differential experiments using parallel alternative operations
AI总结:
本文将基于替代差分运算的攻击扩展至作用于分组每个s-box的并行替代运算,通过数学框架回顾与玩具密码实验,验证了其相较于XOR-差分攻击的有效性。
摘要:
在差分密码分析中使用替代运算或替代差分概念,近来正受到越来越多的关注。最近,Civino等人成功设计了一种分组密码,该密码在使用XOR-差分执行的经典差分密码分析下是安全的,但相对于基于作用于分组第一个s-box的替代差分运算的攻击则较弱。我们将这一结果扩展到并行替代运算,即作用于分组的每个s-box的运算。首先,我们回顾定义和使用此类运算所需的数学框架。之后,我们对一个玩具密码进行一些差分实验,并比较该攻击相对于使用XOR-差分的攻击的有效性。
英文摘要:
The use of alternative operations in differential cryptanalysis, or alternative notions of differentials, are lately receiving increasing attention. Recently, Civino et al. managed to design a block cipher which is secure w.r.t. classical differential cryptanalysis performed using XOR-differentials, but weaker with respect to the attack based on an alternative difference operation acting on the first s-box of the block. We extend this result to parallel alternative operations, i.e. acting on each s-box of the block. First, we recall the mathematical framework needed to define and use such operations. After that, we perform some differential experiments against a toy cipher and compare the effectiveness of the attack w.r.t. the one that uses XOR-differentials.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。