论文标题
8用户量子网络中实现的无条件安全的数字签名
Unconditionally secure digital signatures implemented in an 8-user quantum network
论文作者
论文摘要
知道和验证消息起源的能力通常与加密消息本身一样重要。在这里，我们在没有信任的节点的完全连接的量子网络上，首次实施了无条件安全的数字签名（USS）协议的实验证明。我们的USS协议可安全，不受锻造，否定和消息是可转让的。我们显示了仅使用在整个网络中分布的两点纠缠状态的无条件安全签名的可行性，并在实验中评估了具有不同消息长度的现实世界情景中协议的性能。
The ability to know and verifiably demonstrate the origins of messages can often be as important as encrypting the message itself. Here we present an experimental demonstration of an unconditionally secure digital signature (USS) protocol implemented for the first time, to the best of our knowledge, on a fully connected quantum network without trusted nodes. Our USS protocol is secure against forging, repudiation and messages are transferrable. We show the feasibility of unconditionally secure signatures using only bi-partite entangled states distributed throughout the network and experimentally evaluate the performance of the protocol in real world scenarios with varying message lengths.
