公开(公告)号：KR100834096B1

公开(公告)日：2008-06-02

申请号：KR1020070045917

申请日：2007-05-11

Applicant: 한국전자통신연구원

Inventor： 장상운 ,  김창균 ,  박일환

IPC: H04L9/06 ,  H04L9/14

Abstract: An ARIA(Academy Research Institute Agency) encryption method for counter-measuring a high order DPA is provided to improve a speed by applying a function calculation method only to a first round and the last round. A calculation process is performed by applying d mask values to an input plane text and a round key. A mask value calculation process is performed to calculate the mask values by updating Sbox in the substitution layer. A masking value calculation process is performed in a diffusion layer for composing a round function. The calculation process includes a process for generating random masks of R1 to Rd, a process for initializing an output values, RX to which the d random masks are applied, and a process for performing a masking calculation process for the input plain text and the round key.

Abstract translation: 提供用于对高阶DPA进行反向测量的ARIA（Academy Research Institute Agency）加密方法，以通过仅对第一轮和最后一轮应用函数计算方法来提高速度。 通过将d个掩模值应用于输入平面文本和圆键来执行计算处理。 执行掩模值计算处理以通过更换替换层中的Sbox来计算掩模值。 在用于组合循环函数的扩散层中执行掩蔽值计算处理。 计算处理包括用于生成R1到Rd的随机掩码的处理，用于初始化输出值的过程，应用d随机掩码的RX以及用于对输入的纯文本和轮进行掩蔽计算处理的处理 键。