Improved quantum (t, n) threshold group signature

被引:5
|
作者
Zhang, Yaodong [1 ]
Liu, Feng [2 ]
Zuo, Haixin [1 ]
机构
[1] Shandong Technol & Business Univ, Coll Comp Sci & Technol, Yantai 264005, Peoples R China
[2] Shandong Technol & Business Univ, Coll Math & Informat Sci, Yantai 264005, Peoples R China
基金
中国国家自然科学基金;
关键词
quantum; (t; n) threshold signature; n) threshold secret sharing; forgery attack; collusion attack; SECURITY; SCHEME;
D O I
10.1088/1674-1056/acac0a
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Threshold signature is an important branch of the digital signature scheme, which can distribute signature rights and avoid the abuse of signature rights. With the continuous development of quantum computation and quantum information, quantum threshold signatures are gradually becoming more popular. Recently, a quantum (t, n) threshold group signature scheme was analyzed that uses techniques such as quantum-controlled-not operation and quantum teleportation. However, this scheme cannot resist forgery attack and does not conform to the design of a threshold signature in the signing phase. Based on the original scheme, we propose an improved quantum (t, n) threshold signature scheme using quantum (t, n) threshold secret sharing technology. The analysis proves that the improved scheme can resist forgery attack and collusion attack, and it is undeniable. At the same time, this scheme reduces the level of trust in the arbitrator during the signature phase.
引用
收藏
页数:8
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