Aschauer Hans, Briegel Hans J
Theoretische Physik, Ludwig-Maximilians-Universität, Theresienstrasse 37, D-80333 München, Germany.
Phys Rev Lett. 2002 Jan 28;88(4):047902. doi: 10.1103/PhysRevLett.88.047902. Epub 2002 Jan 9.
We give a security proof of quantum cryptography based entirely on entanglement purification. Our proof applies to all possible attacks (individual and coherent). It implies the security of cryptographic keys distributed with the help of entanglement-based quantum repeaters. We prove the security of the obtained quantum channel which may not be used only for quantum key distribution, but also for secure, albeit noisy, transmission of quantum information.
我们给出了一个完全基于纠缠纯化的量子密码学的安全性证明。我们的证明适用于所有可能的攻击（个体攻击和相干攻击）。它意味着借助基于纠缠的量子中继器分发的加密密钥的安全性。我们证明了所获得的量子信道的安全性，该信道不仅可用于量子密钥分发，还可用于量子信息的安全（尽管有噪声）传输。
