New ID-based proxy blind multi-signature scheme without trusted PKG

In proxy signature scheme, the primitive can delegate his or her authority of digital signature to proxy signatory. In blind signature scheme, the message and signature results aren´t visible to signer. In this paper, the author uses bilinear map and combines with the proxy signature and blind signature to propose a new identity-based proxy blind multi-signature scheme without trusted PKG. It solves the previous program centers on the credibility of unconditional trust, which effectively prevents the forgery of the signature of the trusted center. The analysis shows that the program meets multiple proxy blind signature, which should meet the blinded, unforgeability to distinguish between resistance and other properties.