Measurement device–independent quantum secure direct communication with user authentication

Abstract

Quantum Secure Direct Communication (QSDC) is an important branch of quantum cryptography, which enable secure transmission of messages without prior key encryption. However, traditional quantum communication protocols rely on the security and trustworthiness of the devices employed to implement the protocols, which can be susceptible to attacks. Device-independent (DI) quantum protocols, on the other hand, aim to secure quantum communication independent of the devices used by leveraging fundamental principles of quantum mechanics. In this research paper, we introduce the first DI-QSDC protocol that includes user identity authentication to establish the authenticity of both sender and receiver before message exchange. We also extend this approach to a DI Quantum Dialogue (QD) protocol where both parties can send secret messages upon mutual authentication.

Single‐Photon Based Three‐Party Quantum Secure Direct Communication with Identity Authentication

“…Quantum identity authentication (QIA) allows a communication party to prove his identity based on the basic principle of quantum mechanics, which has been adopted in some quantum secure communication protocols to resist the impersonation attack from the eavesdropper (Eve). [53][54][55][56][57][58][59][60][61] For example, in 2000, Zeng et al put forward a new QKD protocol which can simultaneously distribute the secret keys and verify the communicators' identity. [53] In 2006, the QKD protocol with the blind polarization basis method was proposed.…”

“…[62][63][64][65][66][67] Recently, some QSDC protocols with identity authentication were proposed. [56,59,60] However, the existing QSDC protocols with identity authentication cannot be extended to the MQSDC.…”