| 摘要: |
| 随着区块链技术的广泛应用, 认证存储作为其核心组件, 承担着确保数据完整性和一致性的重要作用. 在传统区块链系统中, 认证存储通过一系列密码算法来验证交易和维护账本状态的完整性. 然而, 量子计算机的出现使得现有区块链认证存储技术面临被破解的威胁, 使得区块链面临数据泄露和完整性受损的风险. 当前最先进的认证存储技术主要基于双线性Diffie-Hellman假设构造的, 该构造难以抵抗量子攻击. 为提高认证存储的安全性和效率, 引入一种无状态哈希签名技术, 提出抗量子的区块链认证存储方案EQAS. 该方案通过将数据存储和数据认证解耦, 利用随机森林链来高效地生成承诺证明, 同时通过超树结构来执行高效认证. 安全性分析表明, EQAS可以抵御量子算法的攻击. 通过与其他认证存储方案的对比, 实验结果验证了EQAS方案的高效性, 展现出其在处理区块链认证存储任务时的卓越性能. |
| 关键词: 区块链 抗量子 认证存储 无状态哈希签名 |
| DOI：10.13328/j.cnki.jos.007394 |
| 分类号:TP309 |
| 基金项目:国家重点研发计划(2022YFB2702700); 国家自然科学基金(62232002, 62202051); 中国科协青年人才托举工程(2023QNRC001); 北京理工大学青年教师学术启动计划 |
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| Quantum-resistant and Efficient Blockchain Authentication Storage Scheme |
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ZHANG Chuan1, REN Xu-Hao1, DENG Hao-Tian1, WANG Ya-Jie1, LI Chun-Hai2, WU Tong3, WANG Li-Cheng1
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1.School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing 100081, China;2.School of Information and Communication, Guilin University of Electronic Technology, Guilin 541004, China;3.School of Computer and Communication Engineering, University of Science and Technology Beijing, Beijing 100083, China
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| Abstract: |
| With the widespread application of blockchain technology, authenticated storage, as a core component, plays a crucial role in ensuring data integrity and consistency. In traditional blockchain systems, authenticated storage is maintained through a series of cryptographic algorithms, which verify transactions and preserve the integrity of ledger states. However, the advent of quantum computers has introduced a significant threat to existing blockchain authentication storage technologies, raising the risk of data breaches and compromised integrity. The most advanced authenticated storage schemes primarily rely on the bilinear Diffie-Hellman assumption, which is susceptible to quantum attacks. To enhance the security and efficiency of authenticated storage, this study introduces a stateless hash signature mechanism and proposes the quantum-resistant blockchain authenticated storage scheme EQAS. The proposed scheme decouples data storage from data authentication, utilizes random forest chains to efficiently generate commitment proofs, and employs a hyper tree structure to perform efficient authentication. Security analyses show that EQAS is resistant to quantum algorithm attacks. Comparative experiments with other authenticated storage schemes demonstrate the superior efficiency and performance of EQAS in handling blockchain authentication storage tasks. |
| Key words: blockchain quantum-resistant authentication storage stateless hash signature |
