对OpenPGP PKI和OpenPGP公钥服务器的再思考
Rethinking OpenPGP PKI and OpenPGP Public Keyserver
摘要：
OpenPGP是IETF提出的一个基于PGP应用的标准，它有自己的公钥基础设施（PKI）体系结构，不同于ITU提出的X.509标准。本文介绍了OpenPGP PKI的发展历史以及目前的应用情况。当前的OpenPGP PKI问题包括PGP密钥服务器的能力及其性能。PGP密钥服务器自20世纪90年代以来一直由志愿者开发和运营。密钥服务器分发、合并和终止OpenPGP公钥。来自几个国家的主要密钥服务器管理者已经建立了全球分布的PGP密钥服务器网络。然而，当前的PGP公钥服务器（pksd）有一些限制。它不完全支持OpenPGP格式，因此它既不可扩展也不灵活，没有任何集群技术。最后介绍了作者之一的铃木博信领导的由日本信息技术振兴机构（IPA）资助的下一代OpenPGP公钥服务器OpenPKSD项目。
英文摘要：
OpenPGP, an IETF Proposed Standard based on PGP application, has its own Public Key Infrastructure (PKI) architecture which is different from the one based on X.509, another standard from ITU. This paper describes the OpenPGP PKI; the historical perspective as well as its current use. The current OpenPGP PKI issues include the capability of a PGP keyserver and its performance. PGP keyservers have been developed and operated by volunteers since the 1990s. The keyservers distribute, merge, and expire the OpenPGP public keys. Major keyserver managers from several countries have built the globally distributed network of PGP keyservers. However, the current PGP Public Keyserver (pksd) has some limitations. It does not support fully the OpenPGP format so that it is neither expandable nor flexible, without any cluster technology. Finally we introduce the project on the next generation OpenPGP public keyserver called the OpenPKSD, lead by Hironobu Suzuki, one of the authors, and funded by Japanese Information-technology Promotion Agency(IPA).
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
