Analysis and improvementation on identity-based one-off public key
Zhang Yuan-yang · Jisuanji gongcheng yu sheji · 2008
In order to resolve the problem of Internet communication anonymity,Zhang Sheng et al.constructed one-off public key system using identity-based cryptography.In this system,user only needs a trust center issuing the private key one time,and he can generate his different public keys when using it.So it can ensure the user's anonymity and the disconnection among the user's actions.The system's security is analyzed and the result shows that its signature process can be totally broken.Due to this defect,two improvements are proposed.The one-off public key but preserves the signature's infrastructure,whereas the second changes the signature process and its corresponding verification.