Security Analysis of the Khudra Lightweight Cryptosystem in the Vehicular Ad-hoc Networks
Security Analysis of the Khudra Lightweight Cryptosystem in the Vehicular Ad-hoc Networks
复制标题
车载自组织网络中Khudra轻量级密码系统的安全分析
DOI:
10.3837/tiis.2018.07.023
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发表时间:
2018-07
影响因子:
1.5
通讯作者:
Zhiqiang Liu
中科院分区:
文献类型:
--
作者:
Wei Li;Chenyu Ge;Dawu Gu;Linfeng Liao;Zhiyong Gao;Xiujin Shi;Ting Lu;Ya Liu;Zhiqiang Liu
With the enlargement of wireless technology, vehicular ad-hoc networks (VANETs) are rising as a hopeful way to realize smart cities and address a lot of vital transportation problems such as road security, convenience, and efficiency. To achieve data confidentiality, integrity and authentication applying lightweight cryptosystems is widely recognized as a rather efficient approach for the VANETs. The Khudra cipher is such a lightweight cryptosystem with a typical Generalized Feistel Network, and supports 80-bit secret key. Up to now, little research of fault analysis has been devoted to attacking Khudra. On the basis of the single nibble-oriented fault model, we propose a differential fault analysis on Khudra. The attack can recover its 80-bit secret key by introducing only 2 faults. The results in this study will provides vital references for the security evaluations of other lightweight ciphers in the VANETs.
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IACR Cryptol. ePrint Arch.
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