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可撤销和可追踪的去中心化ABE用于P2P网络
Dan Gao1, Huanhuan Xu2, Shuqu Qian3
1Department of Information Engineering, Anshun Technical College, Anshun 561000, China.
Entropy (Basel, Switzerland)
|January 28, 2026
概括
本研究介绍了一个新的去中心化Ciphertext-Policy Attribute-Based Encryption (CP-ABE) 方案,用于P2P网络. 它解决了效率,安全和撤销挑战,增强了访问控制.
科学领域:
- 计算机科学 计算机科学
- 网络安全 网络安全
- 密码学 密码学 密码学 密码学
背景情况:
- 在P2P网络中,基于Ciphertext-Policy属性加密 (CP-ABE) 提供了精细的访问控制.
- 现有的CP-ABE方案在效率,功能完整性,分散信任,属性撤销和可追溯性方面面临挑战.
研究的目的:
- 提出一个分散的CP-ABE方案,解决当前系统的局限性.
- 在P2P网络中实现有效的属性撤销和用户问责制.
主要方法:
- 开发了一个名为R-T-D-ABE的分散的CP-ABE方案.
- 实现了值分布式密钥生成.
- 嵌入版本的属性撤销和身份密钥绑定验证.
主要成果:
- 该R-T-D-ABE方案证明了高效的去中心化加密和解密.
- 实现了有效的属性撤销和问责制.
- 确保抵御勾结攻击,并提供前向/后向安全.
- 在通用集团模型 (GGM) 中满足IND-CPA安全性.
结论:
- 拟议的R-T-D-ABE方案为P2P网络提供了一个功能完整和高效的访问控制解决方案.
- 成功平衡计算效率与功能完整性,同时提高安全性.
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