对一种基于身份的强密钥绝缘签名方案的改进

Improved identity-based key-insulation signature scheme

改进了Weng等的方案,提出了一个新的基于身份的强密钥绝缘签名方案,在实现签名私钥自主安全更新的同时解决了密钥托管问题,并提高了其验证签名时的效率。

A new identity-based strong key-insulated signature scheme without key escrow was proposed. Our proposed scheme not only solved the problem of key update but also the problem of key escrow that was ignored in the proposed scheme by.Weng et al. The computational cost of this scheme during the ＂Verify＂ phase was also lower.