Project supported by the National Natural Science Foundation of China (Grant Nos.60873191,60903152 and 60821001);the Specialized Research Fund for the Doctoral Program of Higher Education (Grant No.200800131016);Beijing Nova Program (Grant No.2008B51);Key Project of the Chinese Ministry of Education (Grant No.109014);the Natural Science Foundation of Beijing (Grant No.4072020);China Postdoctoral Science Foundation (Grant No.20090450018);the Natural Science Foundation of the Education Bureau of Henan Province of China (Grant No.2010B120008);the Youth Foundation of Luoyang Normal University
We present a new fair blind signature scheme based on the fundamental properties of quantum mechanics. In addition, we analyse the security of this scheme, and show that it is not possible to forge valid blind signatu...
supported by the National Natural Science Foundation of China (Grant Nos. 60873191 and 60821001);the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 200800131016);the Foundation for Key Program of Ministry of Education of China (Grant No. 109014);the Beijing Nova Program, China (Grant No. 2008B51);the China Post-Doctoral Science Foundation (Grant No. 20090450018);the Natural Science Foundation of Beijing, China (Grant No. 4072020)
The security of the quantum secure deterministic communication scheme [Chin. Phys.16 (2007) 2549] is reexamined. A security loophole is pointed out. Taking advantage of this loophole, an eavesdropper can steal all t...
Project supported by the National Natural Science Foundation of China (Grant Nos. 60873191 and 60821001);the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 200800131016);the Key Project of Chinese Ministry of Education (Grant No. 109014);the China Postdoctoral Science Foundation Funded Project (Grant No. 20090450018);the Beijing Natural Science Foundation (Grant No. 4072020);the 111 Project (Grant No. B08004);the National Basic Research Program of China (Grant No. 2007CB311203)
Utilizing a three-particle W state, we come up with a protocol for the teleportation of an unknown two-particle entangled state. It is shown that the teleportation can be deterministically and exactly realized. Moreov...