To solve all these problems, a more secure multiple grade proxy signature scheme is proposed in this paper based on the study of a difficult mathematical concept, the discrete logarithm.
作者就此诸多问题，基于离散对数这一数学难题，提出了一种安全的多级代理签名方案。
To solve all these problems, a more secure multiple grade proxy signature scheme is proposed in this paper based on the study of a difficult mathematical concept, the discrete logarithm.
作者就此诸多问题，基于离散对数这一数学难题，提出了一种安全的多级代理签名方案。
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