| 轻量级分组密码Piccolo的积分攻击 |
| |
| 引用本文： | 李艳俊,石宇婷.轻量级分组密码Piccolo的积分攻击[J].计算机应用研究,2018,35(11). |
| |
| 作者姓名： | 李艳俊 石宇婷 |
| |
| 作者单位： | 北京电子科技学院 信息安全系,北京电子科技学院 信息安全系 |
| |
| 摘 要： | 针对Piccolo-80算法提出了一种5轮积分区分器,并将其向解密方向扩展了2轮,得到了7轮区分器。使用5轮区分器对无白化密钥的Piccolo-80进行了7轮和8轮的攻击,使用7轮区分器进行了9轮的攻击。其中,最好的攻击结果是使用7轮区分器,对有白化密钥的Piccolo-80进行9轮攻击,可恢复32比特相关轮密钥,需要的数据复杂度为2的48次方个明文,时间复杂度为2的52.237方次9轮加密。
|
| 关 键 词： | 轻量级密码算法 Piccolo算法 积分攻击 部分和技术 |
| 收稿时间： | 2017/7/22 0:00:00 |
| 修稿时间： | 2018/9/25 0:00:00 |
Integral attack of light weight block cipher Piccolo |
| |
| Li Yanjun and Shi Yuting.Integral attack of light weight block cipher Piccolo[J].Application Research of Computers,2018,35(11). |
| |
| Authors: | Li Yanjun and Shi Yuting |
| |
| Affiliation: | Dept of Information Security,Beijing Electronic Science Technology Institute, |
| |
| Abstract: | In this paper, propose a 5-round integral distinguisher on Piccolo-80, then extend it by another 2-round in the decryption direction and get a 7-round distinguisher. Finally, attack 7-round and 8-round Piccolo-80 without whitening keys by using 5-round distinguisher and attack 9-round Piccolo-80 by using 7-round distinguisher .The best result of all of above is the attack on 9-round Piccolo-80 with whitening keys, which can attain 32 bits related round keys, with the data complexity of plaintexts, and the time complexity of encryptions. |
| |
| Keywords: | lightweight block cipher Piccolo integral attack partial sum technique |
|
| 点击此处可从《计算机应用研究》浏览原始摘要信息 |
|
点击此处可从《计算机应用研究》下载全文 |
|
