基于糾纏交換的量子信息簽名方案
Signature Scheme Based on Qantum Entanglement Swapping
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摘要: 該文提出了一種利用糾纏粒子對(duì)交換的量子信息簽名方案。在該簽名方案中,Alice根據(jù)消息的編碼對(duì)自己的糾纏粒子對(duì)作一局域操作,在與系統(tǒng)管理員及Bob進(jìn)行粒子對(duì)交換后測(cè)量的結(jié)果即為消息的簽名,Bob根據(jù)三方測(cè)量結(jié)果可以驗(yàn)證簽名。該方案具有絕對(duì)的安全性,可以應(yīng)用在量子通信網(wǎng)絡(luò)中,同時(shí)還具有量子身份認(rèn)證的功能,并且在現(xiàn)有技術(shù)條件上完全能夠?qū)崿F(xiàn)。
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關(guān)鍵詞:
- 量子信息簽名; 糾纏交換; 簽名方案
Abstract: In this paper, an quantum signature scheme is presented which based on the entanglement swapping. In this scheme, Alice performs a local unitary operation on her two qubits according to message code, after swapping qubits with administrator and Bob, Alice gets the signature by measure her qubits, Bob can verify signature via the measurement outcomes of three sides. This scheme is secure absolutely, it can be applied in a quantum communication network, as well as quantum identification, and it is easy to realize by the present-day technologies. -
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