一个高效的基于格子的集成可撤销的基于身份的加密
Haodong Huang1, Juyan Li1, Shujun Bi2
1School of Computer and Big Data, Heilongjiang University, Harbin, 150080, China.
Scientific reports
|May 14, 2025
概括
本研究引入了一个可扩展的可撤销的基于身份的加密 (RIBE) 方案,以克服用户管理的局限性. 新的基于格子的方法确保了稳定的工作负载和密钥大小,提高了安全性和效率.
科学领域:
- 密码学 密码学 密码学 密码学
- 信息安全 信息安全
- 计算机科学 计算机科学
背景情况:
- 可撤销的基于身份的加密 (RIBE) 提供无证书的数据加密和用户撤销,用于动态访问控制.
- 现有的RIBE计划面临可扩展性问题,给关键生成中心 (KGC) 和用户带来负担.
- 这些局限性阻碍了RIBE在大规模,动态环境中的应用.
研究的目的:
- 为RIBE提出一个综合的撤销模型,以应对可扩展性挑战.
- 为了减少KGC的工作量和用户存储需求.
- 为了让加密器免于管理撤销信息.
主要方法:
- 开发了一个基于晶格密码学的在线/离线RIBE方案,具有解密密钥暴露阻力 (OO-IRIBE-EnDKER).
- 在RIBE计划中整合了一个新的撤销模型.
- 确保了诸如匿名性,解密密钥暴露阻力,量子阻力和选择性安全性等属性.
主要成果:
- 拟议的OO-IRIBE-EnDKER方案保持了恒定的KGC工作负载和秘密密钥大小.
- 加密器不再需要处理撤销信息.
- 实验结果验证了该计划的有效性和效率.
结论:
- 新的基于格子的OO-IRIBE-EnDKER方案为动态用户管理提供了可扩展和安全的解决方案.
- 它有效地克服了现有的RIBE撤销模型的局限性.
- 该方案提供了增强的安全功能,包括量子电阻.
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