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This work presents quantum key distribution protocols (QKDPs) to safeguard security in large networks, ushering in new directions in classical cryptography and quantum cryptography. Two three-party QKDPs, one with implicit user authentication and the other with explicit mutual authentication, are proposed to demonstrate the merits of the new combination, which include the following: 1) security against such attacks as man-in-the-middle, eavesdropping and replay, 2) efficiency is improved as the proposed protocols contain the fewest number of communication rounds among existing QKDPs, and 3) two parties can share and use a long-term secret (repeatedly). To prove the security of the proposed schemes, this work also presents a new primitive called the Unbiased-Chosen Basis (UCB) assumption.
Quantum cryptography, three-party key distribution protocol, provable security.
Tzonelih Hwang, Chuan-Ming Li, Kuo-Chang Lee, "Provably Secure Three-Party Authenticated Quantum Key Distribution Protocols", IEEE Transactions on Dependable and Secure Computing, vol. 4, no. , pp. 71-80, January-March 2007, doi:10.1109/TDSC.2007.13
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