7 papers
Asymmetrical Quantum Cryptographic Algorithm
Guihua Zeng, Carlos Saavedra, Christoph H. Keitel
A cryptographic algorithm is proposed based on fully quantum mechanical keys and ciphers. Encryption and decryption are carried out via an appropriate measurement process on entang…
Quantum authentication protocol
Guihua Zeng, Guangcan Guo
In this letter, we proposed a quantum authentication protocol. The authentication process is implemented by the symmetric cryptographic scheme with quantum effects.
Quantum key distribution relied on trusted information center
Guihua Zeng, Zhongyang Wang, Xinmei Wang
Quantum correlation between two particles and among three particles show nonclassic properties that can be used for providing secure transmission of information. In this paper, we…
Quantum key distribution based on Greenberger-Horne-Zeilinger state
Guihua Zeng
An unsymmetrical quantum key distribution scheme is proposed, its security is guaranteed by the correlation of the Greenberger-Horne-Zeilinger triplet state. In the proposed protoc…
A simple eavesdropping strategy of BB84 protocol
Guihua Zeng
A simplified eavesdropping-strategy for BB84 protocol in quantum cryptography (refer to quant-ph/9812022) is proposed. This scheme implements by the `indirect copying' technology.…
Quantum key distribution with authentication
Guihua Zeng, Xinmei Wang
The security of the previous quantum key distribution (QKD) protocols, which is guaranteed by the nature of physics law, is based on the legitimate users. However, impersonation of…