Analysis and Reproduction of One-off Public Key Based on Identity

Aiming at the construction scheme of the one-off public key,this paper proposes two attack forgeries,and indicates that their schemes are universal forger.It proposes a new construction of one-off public key,which is based on the super singular elliptic curve and only utilizes common elliptic curve digital signature algorithm.The scheme is robust against the two attack forgeries,with perfect security and high efficiency.As user's public key is different every time,it can be applied to implementing Internet anonymous attestation for privacy protection.