Based on the existing ID-based signature, a new ID-based blind signature without trusted PKG is proposed.Meanwhile, a new ID-based proxy signature without trusted PKG is also proposed.

• 本文在已有基于身份无可信中心签名的基础上提出了一个基于身份无可信中心的盲签名，同时提出了一个基于身份无可信中心的代理签名。