Semi-quantum cryptography was proposed to deal with the issue that some players are only able to perform classical operations, thus alleviating the cost of its implementation. For achieving the better universal setting for current environment, we propose a mutual authenticated semi-quantum-honest key agreement scheme with three-particle entangled states in cross-domain setting, which means in different realm’s client can get the session key by his/her own server helping, while anyone else cannot get the session key except for the two clients. In addition, we assume that there is no fully trusted party and that all parties are semi-honest. More important, by the third party’s helping with three-particle entangled states and the four rules, the third party, two servers and two clients can authenticate each other. The proposed scheme has the properties of completeness, information-theoretic security, non-repudiation and unforgeability. On the other hand, our scheme is more efficient than the similar schemes.

提出了半量子密码技术，以解决一些玩家只能执行经典操作的问题，从而降低了其实现成本。为了在当前环境下获得更好的通用设置，我们提出了一种相互认证的半量子诚实密钥协商方案，该方案在跨域设置中具有三粒子纠缠态，这意味着在不同领域中的客户端可以通过他/她获取会话密钥。自己的服务器提供帮助，而除了两个客户端之外，其他任何人都无法获取会话密钥。另外，我们假设没有完全受信任的方，并且所有方都是半诚实的。更重要的是，通过第三方在三粒子纠缠状态和四个规则的帮助下，第三方，两个服务器和两个客户端可以彼此进行身份验证。该方案具有完整性，信息理论安全性，不可否认性和不可伪造性。另一方面，我们的方案比类似方案更有效。