Cryptanalysis of a Quantum Proxy Weak Blind Signature Scheme

被引:23
|
作者
Zhang, Ke-Jia [1 ]
Jia, Heng-Yue [2 ]
机构
[1] Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China
[2] Cent Univ Finance & Econ, Sch Informat, Beijing 100081, Peoples R China
基金
北京市自然科学基金;
关键词
Quantum cryptanalysis; Quantum signature; Proxy signature; Blind signature; CLASSICAL MESSAGES; KEY DISTRIBUTION; QSDC PROTOCOL; CRYPTOGRAPHY; SECRET; ATTACK;
D O I
10.1007/s10773-014-2250-2
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Recently, Cao et al. presented a weak blind signature scheme based on a genuinely entangled six -qubit state. However, we find there exists a security problem that the receiver of the signature can forge a valid signature without being caught. In order to show that, the detailed attack strategy and the potential improved ideas are proposed in this paper.
引用
收藏
页码:582 / 588
页数:7
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