摘要： 针对自证明公钥密钥更新比较困难的问题，基于现有的椭圆曲线自证明公钥，提出一种用户更新自证明公钥生成算法。该算法实现用户自证明公钥的自主更新，通过分析表明，该用户更新自证明公钥可以减少密钥更新的计算开销与通信开销，更新后的公钥仍然具有自证明性，且能够提供自证明公钥的显式验证。

关键词: 自证明公钥, 用户更新, 显式验证

Abstract: To solve the key renewing problem of the self-certified public key, it proposes a user controlled key renew arithmetic of self-certified public key, which is based on ECC self-certified public key. User can renew the self-certified public key independently. It is analyzed that the proposed scheme can reduce the computation and communication costs of key renewing. The renewed key still has the self-certified attributes and can be verified explicitly.

Key words: self-certified public key, user renewing, explicit authentication

中图分类号: 

• TP311.52