Windowed Identity-based Revocation
加窗的基于身份的吊销方案*

IBE(Identity-Based Encryption) is a public key cryptosystem where a public key is an arbitrary string.Boneh and Franklin proposed the first generalized method for key revocation for identity-based encryption schemes.However,it requires expense communication and computation cost.Based on the above scheme,we introduce windowed mechanism to the identity-based key revocation scheme and analyze its performance.It satisfies the scalability and flexibility requirements of key revocation mechanism.