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PKI trust relationships: from a hybrid architecture to a hierarchical model

机译:PKI信任关系:从混合架构到分层模型

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Trust models provide a framework to create and manage trust relationships among the different entities of a public key infrastructure (PKI). These trust relationships are verified through the certification path validation process, which involves: path discovery, signature verification and revocation status checking. When trust relationships are bidirectional, multiple paths can exist between two entities, which increase the runtime of the path discovery process. In addition, validation of long paths can be difficult, especially when storage and processing capacities of the verifier are limited. In this paper, we propose a protocol to establish a hierarchical trust model from a PKI with unidirectional and bidirectional trust relationships. This protocol makes more efficient the path validation process since in a hierarchical model, trust relationships are unidirectional and paths are easy to find. In addition, our protocol allows setting a maximum path length, so it can be adapted to the features of users' terminals.
机译:信任模型提供了一个框架,可以在公共密钥基础结构(PKI)的不同实体之间创建和管理信任关系。这些信任关系通过认证路径验证过程进行验证,该过程包括:路径发现,签名验证和吊销状态检查。当信任关系是双向的时,两个实体之间可以存在多个路径,这会增加路径发现过程的运行时间。另外,长路径的验证可能很困难,尤其是在验证器的存储和处理能力受到限制的情况下。在本文中,我们提出了一种协议,该协议可以从具有单向和双向信任关系的PKI建立层次信任模型。该协议使路径验证过程更加有效,因为在分层模型中,信任关系是单向的,并且路径很容易找到。另外,我们的协议允许设置最大路径长度,因此可以适应用户终端的功能。

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