基于隐秘映射组合公钥的云计算密钥管理方案

Cloud computing key management scheme based on covert mapping combined public key

为了保证云计算安全,在分析云计算的安全需求的基础上,基于椭圆曲线密码体制提出了一种适用于分布式云计算的隐秘映射组合公钥密钥管理方案。详细地阐述了密钥管理的一系列操作过程,包括密钥初始化、密钥分发、密钥协商、密钥更新及密钥销毁等。分析表明,该方案能够正确高效地解决云计算密钥大规模管理和存储问题,具有高度可扩展性,能够抵抗共谋攻击,能保证云计算提供安全可靠的服务。

In order to guarantee the security of cloud computing, based on the analysis of cloud computing security require- ments and elliptic curve cryptosystems, this paper proposed a covert mapping combined public key management scheme that was suitable for the distributed cloud computing. It made detailed description of the process of key management, such as key initialization, key distribution, key agreement, key update and key revocation. The analysis results show that the scheme can solve the problem of large scale keys storage and management correctly and efficiently, has high sealability, can resist collu- sion attack and ensur the security services provided by cloud computing.