Dataset for the paper: An evaluation of X.509 certificate revocation and related privacy issues in the Web PKI ecosystem

In order to analyze the status of web domain certificates in the Web PKI, a relevant set of X.509 certificates must be built. This dataset was created based on the Alexa Top 1 Million (Top1M) List (available on 26 August 2021) containing the most visited websites. We collected the X.509 certificates for the web domains in the Alexa Top1M list with two dedicated scripts in the dataset, namely "ScriptCollectCertificates.sh" and "StartScript_CollectCertificates.sh". The downloaded certificates have been stored in a directory, namely "CollectedCertificatesAlexaList2021". Helpful scripts (in Python) for analyzing the certificates' content are found in the directory "AnalysisScripts". Support for OCSP stapling mechanism provided by the websites has been checked with the scripts "StartScript_OCSPstaplingcheck.sh" and "ScriptOCSPstaplingcheck.sh" in the dataset.

为分析Web公钥基础设施（Web PKI）中的域名证书状态，需构建相关的X.509证书（X.509）集。本数据集基于2021年8月26日发布的Alexa全球Top 100万网站榜单（Alexa Top 1 Million，简称Top1M）构建，该榜单收录了全球访问量最高的网站。我们通过数据集中的两个专用脚本，即`ScriptCollectCertificates.sh`与`StartScript_CollectCertificates.sh`，采集了该榜单中各域名对应的X.509证书，采集所得的证书已存储于`CollectedCertificatesAlexaList2021`目录中。目录`AnalysisScripts`内包含用于分析证书内容的辅助Python脚本。此外，本数据集还通过`StartScript_OCSPstaplingcheck.sh`与`ScriptOCSPstaplingcheck.sh`两个脚本，完成了对各网站所支持的在线证书状态协议绑定（OCSP stapling）机制的检测工作。