论文标题
通过量子和经典资源，信息从理论上确保数据原点身份验证
Information-theoretically secure data origin authentication with quantum and classical resources
论文作者
论文摘要
在常规的密码学中，可以通过通用哈希功能来实现信息从理论上安全的消息身份验证，并要求两个合法用户共享一个随机的秘密密钥，这是消息的两倍。我们解决了一个问题，即量子资源是否可以比经典无条件安全的消息身份验证代码提供任何优势。结果表明，被动准备和测量量子消息实体方案不能比其经典同行做得更好。随后，我们提出了一个交互式纠缠的方案，它理想地允许使用经典键对经典消息的身份验证，这与消息一样长。
In conventional cryptography, information-theoretically secure message authentication can be achieved by means of universal hash functions, and requires that the two legitimate users share a random secret key, which is twice as long as the message. We address the question as of whether quantum resources can offer any advantage over classical unconditionally secure message authentication codes. It is shown that passive prepare-and-measure quantum message-authentication schemes cannot do better than their classical counterparts. Subsequently we present an interactive entanglement-assisted scheme, which ideally allows for the authentication of classical messages with a classical key, which is as long as the message.
