期刊
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
卷 57, 期 4, 页码 994-1003出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10773-017-3632-z
关键词
Ring signature; Proxy signature; Proxy ring signature; Random oracle
资金
- National Science Foundation of China [11261060]
In 2014, Liu et al. (In. J. Thero. phys. 53(5); 1569-1579. 2014) proposed an arbitrated quantum signature scheme (Liu'14) with Bell states by utilizing a new quantum one-time pad algorithm. It claimed that it can resist the receiver's existential forgery attack and no party has chances to change the message and its signature without being discovered. Recently, Xu and Zou (In. J. Thero. phys. 55; 4142-4156. 2016) analyzed above scheme and demonstrated that it can't resist the signer's disavowal and the receiver's existential forgery. But, the authors didn't give a method to solve it. In this paper, we will give an improved arbitrated quantum signature scheme to make up the loopholes in Liu'14.
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