Related-Key Rectangle Cryptanalysis of Reduced-Round Block Cipher MIBS

被引：0

作者：

Qiao, Kexin ^{[1
]}

Hu, Lei

Sun, Siwei

Ma, Xiaoshuang

机构：

[1] Chinese Acad Sci, Inst Informat Engn, State Key Lab Informat Secur, Beijing, Peoples R China

来源：

2015 9TH INTERNATIONAL CONFERENCE ON APPLICATION OF INFORMATION AND COMMUNICATION TECHNOLOGIES (AICT) | 2015年

关键词：

MIBS block cipher; related-key differential attack; rectangle distinguisher; rectangle attack;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A related-key rectangle attack treats a block cipher as a cascade of two sub-ciphers to construct distinguishers. In this paper, by introducing related-key differential characteristics with high probability for each sub-cipher, we construct a distinguisher for 13-round MIBS80, a Feistel block cipher with key length of 80 bits, and launch a key-recovery attack on 15-round MIBS80 with time complexity of 2(67) and data complexity of 2(49). A similar attack is also launched on 13-round MIBS64, a version of the cipher with 64-bit keys. This is the first and a textbook related-key rectangle cryptanalysis on MIBS block cipher.

引用

页码：216 / 220

页数：5

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