lupaxa-certtool 0.1.0

A Python toolkit and CLI for generating self-signed certificates, CSRs, and private keys.

The Lupaxa Security Toolbox.
Part of The Lupaxa Project.

lupaxa-certtool

A clean, modern, fully-typed Python CLI and library for generating self-signed X.509 certificates, certificate signing requests (CSRs), and private keys.

Built for automation, reproducibility, and bulk-generation workflows used by The Lupaxa Project.

Features

• Generate self-signed certificates, private keys, and CSRs
• Generate from:
  • JSON config file
  • Directory of config files (bulk mode)
  • Pure command-line flags
• Output:
  • To stdout
  • Or into an output directory, with one folder per certificate
• Supports:
  • RSA key generation
  • SHA-256 / SHA-384 / SHA-512 digests
  • Validity period configuration
  • Optional private key encryption with passphrase
  • Subject Alternative Names (SANs) via JSON or CLI
• Includes:
  • --generate-example to produce a full example JSON config
  • --inspect-cert to analyze existing PEM certificates
  • --validate-config to validate config files before use
• Fully typed, linted, formatted, and tested
• MkDocs documentation included

Installation

From PyPI

pip install lupaxa-certtool

From source (development mode)

pip install -e ".[dev]"

Usage

Basic self-signed certificate from CLI

certtool \
  --countryName UK \
  --stateOrProvinceName Somerset \
  --localityName Glastonbury \
  --organizationName "Lupaxa Project" \
  --commonName "example.local"

Using JSON Configuration

Generate an example config

certtool --generate-example --example-file example-cert.json

Use a JSON config file

certtool --config example-cert.json

Use a directory of configs (bulk mode)

certtool --config-dir configs/

Output Directory Structure

If you pass:

certtool --config-dir configs/ --output-dir output/

You get:

output/
├── example.local/
│   ├── cert.pem
│   ├── csr.pem
│   └── key.pem
└── api.internal/
    ├── cert.pem
    ├── csr.pem
    └── key.pem

Each certificate gets its own folder to prevent overwriting.

Private Key Encryption

JSON

{
  "passphrase": "your-secret-here"
}

CLI (overrides JSON)

certtool --config server.json --passphrase "some-secret"

Inspect a Certificate

certtool --inspect-cert output/example.local/cert.pem

Development

Run tests

make test

Type checking

make type

Lint, format, and style checks

make check-style

Run everything

make check-all

Build documentation

mkdocs serve

Documentation

The project includes MkDocs documentation.

Online documentation:

Documentation

Full documentation is available in the docs/ directory or served locally:

Serve docs locally

mkdocs serve

Then open the printed URL (usually http://127.0.0.1:8000/) in your browser.

Development

Clone the repository and install dev dependencies:

pip install -e ".[dev]"

Useful make targets:

make test        # run tests
make type        # type checking (mypy)
make check-style # lint + format + type
make check-all   # run tests, coverage, and audit

Repository Layout

lupaxa-certtool/
├── src/lupaxa/certtool/
│   ├── cli.py
│   ├── certs.py
│   ├── utils.py
│   ├── config.py
│   ├── example.py
│   ├── exceptions.py
│   ├── version.py
│   └── __init__.py
├── docs/
├── tests/
├── mkdocs.yml
├── Makefile
├── pyproject.toml
├── .editorconfig
├── .gitignore
└── README.md

© The Lupaxa Project.
Where exploration meets precision.
Where the untamed meets the engineered.