Build a two-tier PKI Certificate Authority hierarchy (offline Root CA plus issuing Intermediate CA) using OpenSSL and the Python cryptography library, covering certificate extensions, CRL distribution points, OCSP responder configuration, and certificate policy management.
Install
npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill configuring-certificate-authority-with-opensslnpx skills add mukul975/Anthropic-Cybersecurity-Skills --skill configuring-certificate-authority-with-openssl -a claude-code -gnpx skills add mukul975/Anthropic-Cybersecurity-Skills --skill configuring-certificate-authority-with-openssl -a codex -ggemini skills install https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git --path skills/configuring-certificate-authority-with-opensslgh skill install mukul975/Anthropic-Cybersecurity-Skills configuring-certificate-authority-with-opensslgit clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills /tmp/mukul975__Anthropic-Cybersecurity-Skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/mukul975__Anthropic-Cybersecurity-Skills/skills/configuring-certificate-authority-with-openssl ~/.claude/skills/configuring-certificate-authority-with-openssl # Claude Code
cp -R /tmp/mukul975__Anthropic-Cybersecurity-Skills/skills/configuring-certificate-authority-with-openssl ~/.agents/skills/configuring-certificate-authority-with-openssl # Codex, Cursor, Gemini CLI, Copilot, OpenCode