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该文提出一个高效的全序有向传递签名方案，并证明该方案在选择明文攻击下是安全的。
In this paper, an efficient total ordering directed transitive signature scheme is proposed and its security against adaptive chosen-message attack is proved.
将该方案与无向传递签名方案结合，提出一个可对任何有向二元传递关系进行签名的方案。
A solution for signing any directed transitive binary relation is presented by combining the proposed scheme with the undirected transitive signature schemes available.
在第四章中，针对有向图，我们给出了满足广义同态性质的传递性签名系统。
In chapter 4, we propose a transitive signature scheme that satisfies generalized homomorphism.
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