期刊
QUANTUM INFORMATION PROCESSING
卷 11, 期 2, 页码 373-384出版社
SPRINGER
DOI: 10.1007/s11128-011-0251-0
关键词
EPR pair; Quantum private comparison; Bell state; Qubit efficiency
资金
- National Science Council of the Republic of China, Taiwan [NSC 98-2221-E-006-097-MY3]
Based on EPR pairs, this paper proposes a different quantum private comparison (QPC) protocol enabling two parties to compare the equality of their information without revealing the information content. Due to the use of quantum entanglement of Bell state as well as one-way quantum transmission, the new protocol provides easier implementation as well as better qubit efficiency (near 50%) than the other QPCs. It is secure against Trojan horse attack and other well-known attacks.
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