Volume 8 Number 12 (Dec. 2013)
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JCP 2013 Vol.8(12): 3168-3175 ISSN: 1796-203X
doi: 10.4304/jcp.8.12.3168-3175

Quantum Public-Key Cryptosystem Based on Super Dense Coding Technology

Xiaoyu Li1, Dexi Zhang2
1School of Information Engineering, Zhengzhou University, Zhengzhou City, P. R. China
2College of Computer Science and Technology, Xuchang University, Xuchang City, P. R. China


Abstract—In this paper we provide a quantum public-key cryptosystem based on super dense coding technology. A user Alice shares a set of Einstein-Podolsky-Rosen (EPR) pairs with a key management center (KMC) in which the particles hold by Alice are the private key and the particle hold by KMC are the public key. By the help of the key management center any other user can send encrypted message to Alice. Any one including KMC except Alice can’t recover the message. On the other hand digital signature can also be achieved by this public-key cryptosystem. In the cryptosystem one EPR pair can be used to encrypt two bits of the plain text. So it’s efficient. Finally we prove that our cryptosystem is robust against possible attacks.

Index Terms—public-key, quantum cryptography, EPR pair, super dense coding, the Bell state measurement.

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Cite: Xiaoyu Li, Dexi Zhang, "Quantum Public-Key Cryptosystem Based on Super Dense Coding Technology," Journal of Computers vol. 8, no. 11, pp. 3168-3175, 2013.

General Information

ISSN: 1796-203X
Abbreviated Title: J.Comput.
Frequency: Monthly
Editor-in-Chief: Prof. Liansheng Tan
Executive Editor: Ms. Nina Lee
Abstracting/ Indexing: DBLP, EBSCO,  ProQuest, INSPEC, ULRICH's Periodicals Directory, WorldCat, CNKI,etc
E-mail: jcp@iap.org
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