Quantum secure direct communication protocol with quantum one-way function

This paper describes the differences and relations of quantum key distribution (QKD) and quantum secure direct communication (QSDC), proposing a more efficient, better security quantum secure direct communication protocol. Security of the protocol based on the characteristics of quantum one-way function, and it does not require the classical channel, simplifies the communication process. Alice and Bob can achieve quantum secure direct communication, analyze the superiority of the proposed protocol and compare with the adoption and efficient quantum key distribution protocol based on Bell states.