configuring-certificate-authority-with-openssl

configuring-certificate-authority-with-openssl is a skill for Claude Code, Codex from andycungkrinx91/konoha. It costs 52 tokens per session (737 once invoked), scanned A, a copy of configuring-certificate-authority-with-openssl, MIT.

A guide to building a certificate authority with OpenSSL. A certificate authority is a trusted service that issues, signs, and revokes digital certificates used to prove the identity of systems and users.

In plain words
What is it for?
It helps create a root and intermediate certificate authority, issue server and client certificates, and configure certificate revocation lists and an online status responder.
Why use it?
It provides a structured trust chain instead of relying on individually trusted certificates. Revocation and certificate policies help manage certificates when keys are compromised or no longer valid.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

Good fit It helps create a root and intermediate certificate authority, issue server and client certificates, and configure certificate revocation lists and an online status responder.

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Install with agentmods
npx agentmods add skills/andycungkrinx91/konoha/configuring-certificate-authority-with-openssl
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add andycungkrinx91/konoha --skill configuring-certificate-authority-with-openssl
Clone the repo
git clone --depth 1 https://github.com/andycungkrinx91/konoha

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for configuring-certificate-authority-with-openssl

README.md
[![agentmods](https://agentmods.dev/badge/skills/andycungkrinx91/konoha/configuring-certificate-authority-with-openssl/github.svg)](https://agentmods.dev/skills/andycungkrinx91/konoha/configuring-certificate-authority-with-openssl)
Your own site
<a href="https://agentmods.dev/skills/andycungkrinx91/konoha/configuring-certificate-authority-with-openssl"><img src="https://agentmods.dev/badge/skills/andycungkrinx91/konoha/configuring-certificate-authority-with-openssl/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for configuring-certificate-authority-with-openssl

Your own site · 80×15
<a href="https://agentmods.dev/skills/andycungkrinx91/konoha/configuring-certificate-authority-with-openssl"><img src="https://agentmods.dev/badge/skills/andycungkrinx91/konoha/configuring-certificate-authority-with-openssl.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 737 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00052 $0.00737
Opus 5.5 $0.00021 $0.00295
Sonnet 5.5 $0.00010 $0.00147
Haiku 4.5 $0.00005 $0.00074

Measured today against content hash 64c09e09497a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

configuring-certificate-authority-with-openssl scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/agent.py, scripts/process.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to configuring-certificate-authority-with-openssl — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/akatsuki-skill/references/anthropic-cybersecurity-skills-assets/skills/configuring-certificate-authority-with-openssl/SKILL.md · 101 lines

How it starts

The opening of the file, as written. The whole thing — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Configuring Certificate Authority with OpenSSL

Overview

A Certificate Authority (CA) is the trust anchor in a PKI hierarchy, responsible for issuing, signing, and revoking digital certificates. This skill covers building a two-tier CA hierarchy (Root CA + Intermediate CA) using OpenSSL and the Python cryptography library, including CRL distribution, OCSP responder configuration, and certificate policy management.

When to Use

  • When deploying or configuring configuring certificate authority with openssl capabilities in your environment
  • When establishing security controls aligned to compliance requirements
  • When building or improving security architecture for this domain
  • When conducting security assessments that require this implementation

Prerequisites

  • Familiarity with cryptography concepts and tools
  • Access to a test or lab environment for safe execution
  • Python 3.8+ with required dependencies installed
  • Appropriate authorization for any testing activities

Objectives

  • Create a Root CA with self-signed certificate
  • Create an Intermediate CA signed by the Root CA
  • Issue server and client certificates from the Intermediate CA
  • Configure Certificate Revocation Lists (CRLs)
  • Implement certificate policies and constraints
  • Build a complete PKI hierarchy programmatically

Key Concepts

CA Hierarchy

Root CA (offline, air-gapped)
  |
  +-- Intermediate CA (online, operational)
        |
        +-- Server Certificates
        +-- Client Certificates
        +-- Code Signing Certificates

Certificate Extensions

Extension Purpose Critical
basicConstraints CA:TRUE/FALSE, pathLenConstraint Yes
keyUsage keyCertSign, cRLSign, digitalSignature Yes
extendedKeyUsage serverAuth, clientAuth, codeSigning No
subjectKeyIdentifier Hash of public key No
authorityKeyIdentifier Issuer's key identifier No
crlDistributionPoints URL to CRL No
authorityInfoAccess OCSP responder URL No

Read the full file on GitHub · 101 lines

Files

What ships with it

6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. today First seen · 101 lines · 52 tokens per session scan A 64c09e09497a

Subscribe to this mod's changes

configuring-certificate-authority-with-openssl is a skill published in the GitHub repository andycungkrinx91/konoha (12 stars, last pushed today), licensed MIT. It adds 52 tokens to every session and 737 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to configuring-certificate-authority-with-openssl, differing in 0 lines, and is treated as a copy.

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