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基于圆曲线加密的高效属性强的指定验证器签名方案,基于圆曲线加密
PloS one
|May 9, 2024
概括
本研究介绍了使用圆曲线加密的基于属性的高效强大的指定验证器签名方案. 新方案减少了资源有限的环境的开销,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
- 计算机科学 计算机科学
- 信息安全 信息安全
背景情况:
- 基于属性的签名提供了细粒度的访问控制,但通常具有很高的开销.
- 传统的方案可以是计算密集型,限制在资源有限的设置中使用它们.
- 保护签名者身份和限制可验证性是安全通信的关键挑战.
研究的目的:
- 提出一个高效的基于属性的强大的指定验证人签名方案.
- 与传统方案相比,以减少计算开销.
- 为了提高对资源有限的环境 (如云端最终用户) 的适用性.
主要方法:
- 开发了一个基于圆曲线加密 (ECC) 的方案.
- 在圆曲线上利用了标量乘法,避免了计算上更重的双线对.
- 实施线性秘密共享计划 (LSSS) 进行访问结构管理.
- 在圆曲线离散对数问题 (ECDLP) 难度假设下在标准模型中进行安全分析.
主要成果:
- 拟议的方案表明,签名和验证的计算开销减少了.
- 基于ECC的方法比双线配对方法提供了较轻的计算负载.
- 与AND-gate或访问树结构相比,LSSS提供了更有效的访问政策表达.
- 该方案适用于资源有限的云端最终用户场景.
结论:
- 新的基于属性的强有力的指定验证人签名方案是高效和安全的.
- 降低开销使其在资源有限的环境中变得实用.
- 使用ECC和LSSS可以提高性能和访问控制能力.
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