基于属性的认证密钥协商协议

Attribute-based authenticated key agreement protocol

提出了一个通用的基于属生的抗选择密文安全的密钥封装方案,并根据密钥抽取函数的不同功能,将标准模型下密钥抽取细化为随机提取和密钥抽取两个步骤.再以此为基础,设计了一个新的基于属性的认证密钥协商协议,定义了基于属性的可证安全密钥协商模型,并在标准模型下证明了该协议的安全性.

A generic attribute-based key encapsulation mechanism, which was to prevent chosen-ciphertext attack, was designed for the first time. The key derivation phase in the standard model was subdivided into randomness extraction and key derivation. On this basis, a new attribute-based authenticated key agreement protocol was constructed, which defined to be a provable secure model and its security was proven in the standard model.