ID-based proxy blind signature

Blind signature is the concept to ensure anonymity of e-coin. Untracebility and unlinkability are two main properties of real coin, which require mimicking electronically. Proxy signature schemes allow a proxy signer to generate a proxy signature on behalf of an original signer. All the previous proxy signature schemes are based on ElGamal-type schemes. We propose a new proxy blind signature scheme based on an ID-based signature scheme, which uses bilinear pairings of elliptic curves or hyperelliptic curves.