李龟泽掌管着一个庞大复杂的工业帝国。
基于椭圆曲线离散对数问题，纪家慧和李大兴提出了一个代理签名方案和一个代理多签名方案，陈泽雄等人给出了另外两个代理多签名方案。
Based on the elliptic curve discrete logarithm problem, Ji and Li proposed a proxy signature scheme and a proxy multi-signature scheme and Chen et al. proposed two proxy multi-signature schemes.
恩师戴泽老先生饶有兴致地观赏了李成举先生的每一幅作品，并对李成举先生的作品给予了鼓励。(采访戴泽视频)。
Da Ze, the teacher of Li Chengju, appreciated every piece of work of Li Chengju with interest and encouraged Li Chengju's works. (Video of Interview to Dai Ze).
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