A Quantum-encrypted Blockchain Based on Delegated Proof of Stake (DPoS) Extension

Chen Bing-er; Wang Bang-hai; Lao Nan-xin

doi:10.12052/gdutxb.200068

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A Quantum-encrypted Blockchain Based on Delegated Proof of Stake (DPoS) Extension

更新时间：2026-05-27

- A Quantum-encrypted Blockchain Based on Delegated Proof of Stake (DPoS) Extension
- Vol. 38, Issue 2, Pages: 34-38(2021)
- 作者机构：
  
  广东工业大学计算机学院,广东,广州,510006
- 作者简介：
- 基金信息：
- DOI：10.12052/gdutxb.200068
  CLC： TP393.02
- Online First：10 March 2021，
  
  Published：2021
- 稿件说明：
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陈冰儿, 王帮海, 劳南新. 基于DPoS扩展的量子加密区块链[J]. 广东工业大学学报, 2021, 38(2): 34-38.

Chen Bing-er, Wang Bang-hai, Lao Nan-xin. A Quantum-encrypted Blockchain Based on Delegated Proof of Stake (DPoS) Extension[J]. 2021, 38(2): 34-38.
陈冰儿, 王帮海, 劳南新. 基于DPoS扩展的量子加密区块链[J]. 广东工业大学学报, 2021, 38(2): 34-38. DOI： 10.12052/gdutxb.200068.

Chen Bing-er, Wang Bang-hai, Lao Nan-xin. A Quantum-encrypted Blockchain Based on Delegated Proof of Stake (DPoS) Extension[J]. 2021, 38(2): 34-38. DOI： 10.12052/gdutxb.200068.

摘要

区块链技术的安全性依赖基于数学计算单向困难性的加密算法

其在量子计算机的指数级加速下暴露出脆弱性。虽然已有一系列抗量子攻击区块链被提出

但它们往往建设成本高昂

不利于普及推广。对此

提出了基于委托权益证明(Delegated Proof of Stake

DPoS)扩展的量子加密区块链

相比于Kiktenko等的原始量子安全区块链

所需建设的量子密钥分发(Quantum Key Distribution

QKD)信道数量由

$ O({n}^{2}) $

img text_id='M1' class='formula-img' style='display:none;' src='gdgydxxb-38-2-34_M1.jpg'>

降低到

$ O\left(n\right) $

img text_id='M2' class='formula-img' style='display:none;' src='gdgydxxb-38-2-34_M2.jpg'>

所需进行的通信轮数上限由

$ n/3+1 $

img text_id='M3' class='formula-img' style='display:none;' src='gdgydxxb-38-2-34_M3.jpg'>

降低为

$ k/3+1 $

img text_id='M4' class='formula-img' style='display:none;' src='gdgydxxb-38-2-34_M4.jpg'>

显著降低了量子加密区块链的建设成本

提升了其运行

效率与拓展能力。

Abstract

The security of blockchain technology

depending on the encryption algorithms based on the one-way mathematical calculation difficulty

is vulnerable to the attack under exponential acceleration of quantum computers. Although a series of anti-quantum attack blockchains have been proposed

they are often too expensive to build and are not conducive to popularization. In this regard

a quantum-encrypted blockchain based on delegated proof of stake (DPoS) extension is proposed. Comparing with the original quantum-secured blockchain proposed by Kiktenko

the number of quantum key distribution (QKD) channels needed to be built is reduced from

$O({n}^{2})$

img text_id='M5' class='formula-img' style='display:none;' src='gdgydxxb-38-2-34_M5.jpg'>

$ O\left(n\right) $

img text_id='M6' class='formula-img' style='display:none;' src='gdgydxxb-38-2-34_M6.jpg'>

and the maximum number of communication rounds required is reduced from

$ n/3+1 $

img text_id='M7' class='formula-img' style='display:none;' src='gdgydxxb-38-2-34_M7.jpg'>

$ k/3+1 $

img text_id='M8' class='formula-img' style='display:none;' src='gdgydxxb-38-2-34_M8.jpg'>

. It significantly reduces the construction cost

and improves the operation efficiency and expansion ability.

关键词

Keywords

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