dorsal/arxiv
View SchemaMultiparty Quantum Secret Report
| Authors | Fu-Guo Deng, Xi-Han Li, Chun-Yan Li, Ping Zhou, Yu-Jie Liang, Hong-Yu Zhou |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0606021 |
| URL | https://arxiv.org/abs/quant-ph/0606021 |
| DOI | 10.1088/0256-307X/23/7/006 |
| Journal | Chinese Physics Letters 23, 1676 (2006) |
Abstract
A multiparty quantum secret report scheme is proposed with quantum encryption. The boss Alice and her $M$ agents first share a sequence of ($M$+1)-particle Greenberger--Horne--Zeilinger (GHZ) states that only Alice knows which state each ($M$+1)-particle quantum system is in. Each agent exploits a controlled-not (CNot) gate to encrypt the travelling particle by using the particle in the GHZ state as the control qubit. The boss Alice decrypts the travelling particle with a CNot gate after performing a $\sigma_x$ operation on her particle in the GHZ state or not. After the GHZ states (the quantum key) are used up, the parties check whether there is a vicious eavesdropper, say Eve, monitoring the quantum line, by picking out some samples from the GHZ states shared and measure them with two measuring bases. After confirming the security of the quantum key, they use the GHZ states remained repeatedly for next round of quantum communication. This scheme has the advantage of high intrinsic efficiency for qubits and the total efficiency.
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"abstract": "A multiparty quantum secret report scheme is proposed with quantum\nencryption. The boss Alice and her $M$ agents first share a sequence of\n($M$+1)-particle Greenberger--Horne--Zeilinger (GHZ) states that only Alice\nknows which state each ($M$+1)-particle quantum system is in. Each agent\nexploits a controlled-not (CNot) gate to encrypt the travelling particle by\nusing the particle in the GHZ state as the control qubit. The boss Alice\ndecrypts the travelling particle with a CNot gate after performing a $\\sigma_x$\noperation on her particle in the GHZ state or not. After the GHZ states (the\nquantum key) are used up, the parties check whether there is a vicious\neavesdropper, say Eve, monitoring the quantum line, by picking out some samples\nfrom the GHZ states shared and measure them with two measuring bases. After\nconfirming the security of the quantum key, they use the GHZ states remained\nrepeatedly for next round of quantum communication. This scheme has the\nadvantage of high intrinsic efficiency for qubits and the total efficiency.",
"arxiv_id": "quant-ph/0606021",
"authors": [
"Fu-Guo Deng",
"Xi-Han Li",
"Chun-Yan Li",
"Ping Zhou",
"Yu-Jie Liang",
"Hong-Yu Zhou"
],
"categories": [
"quant-ph"
],
"doi": "10.1088/0256-307X/23/7/006",
"journal_ref": "Chinese Physics Letters 23, 1676 (2006)",
"title": "Multiparty Quantum Secret Report",
"url": "https://arxiv.org/abs/quant-ph/0606021"
},
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