Non-repudiation signature with message recovery for specified recipient
Qi You Xie, Xiuyuan Yu · Journal of Zhejiang University(Sciences Edition) · 2005
In some applications, it is necessary that the signature only needs to be verified and the message only needs to be recovered by some specified recipients while keeping the message secret from the public, and the signer can not repudiate the signature. Non-repudiation signature scheme with message recovery for specified recipient based on discrete logarithm is proposed. It has many efficiency features, only the recipient can recover the message, and any one can verify the signature. In order to solve the repudiation of the signer, compared with the previous schemes, the proposed scheme does not need to present the recovered message to the third party, to cooperate with the signer, or to perform a zero-knowledge protocol. Moreover, it can extend to non-repudiation multisignature scheme with message recovery for specified group of recipients.