# Openssl Selfsigned Cert > This skill provides guidance for generating self-signed SSL/TLS certificates using OpenSSL. Use this skill when tasks involve creating private keys, self-signed certificates, certificate signing requests (CSRs), or combined PEM files. It covers verification strategies and common pitfalls in certificate generation workflows. Use when this capability is needed. - Skill: `tomevault-io/openssl-selfsigned-cert` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/openssl-selfsigned-cert` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/openssl-selfsigned-cert/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/openssl-selfsigned-cert --- # openssl-selfsigned-cert This skill provides guidance for generating self-signed SSL/TLS certificates using OpenSSL. Use this skill when tasks involve creating private keys, self-signed certificates, certificate signing requests (CSRs), or combined PEM files. It covers verification strategies and common pitfalls in certificate generation workflows. --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/kaiserwholearns) — claim your Tome and manage your conversions.