标题： 基于受控单元操作加密的安全高效量子签名方案 显示英文标题

标题： Secure and Efficient Quantum Signature Scheme Based on the Controlled Unitary Operations Encryption

摘要： 量子数字签名利用量子原理确保消息的不可伪造真实性和完整性，为经典和量子攻击提供无条件安全。 它们在高风险环境中对于安全通信至关重要，确保量子时代的信任和长期保护。 如今，大多数仲裁量子签名（AQS）协议使用量子一次性密码本（QOTP）逐个加密数据量子比特。 尽管提供强大的数据加密，QOTP由于容易受到多种类型的攻击，不太适合AQS。 在本工作中，我们提出了一种高效的AQS协议，使用一种不同的加密技术——链式受控单位操作来加密量子消息集合。 与现有协议不同，我们的方法成功防止了否认和伪造攻击。 我们希望这有助于推动未来对AQS协议发展的研究。 显示英文摘要

摘要： Quantum digital signatures ensure unforgeable message authenticity and integrity using quantum principles, offering unconditional security against both classical and quantum attacks. They are crucial for secure communication in high-stakes environments, ensuring trust and long-term protection in the quantum era. Nowadays, the majority of arbitrated quantum signature (AQS) protocols encrypt data qubit by qubit using the quantum one-time pad (QOTP). Despite providing robust data encryption, QOTP is not a good fit for AQS because of its susceptibility to many types of attacks. In this work, we present an efficient AQS protocol to encrypt quantum message ensembles using a distinct encryption technique, the chained controlled unitary operations. In contrast to existing protocols, our approach successfully prevents disavowal and forgery attacks. We hope this contributes to advancing future investigations into the development of AQS protocols.