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README.md

ACME Java Client build status

This is a Java client for the Automatic Certificate Management Environment (ACME) protocol.

ACME is a protocol that a certificate authority (CA) and an applicant can use to automate the process of verification and certificate issuance.

This Java client helps connecting to an ACME server, and performing all necessary steps to manage certificates.

It is an independent open source implementation that is not affiliated with or endorsed by Let's Encrypt.

Migration Guide

Major parts of the acme4j API have changed in this version.

Please see the migration guide for how to update your code to the new API. It should just be a matter of a few minutes.

Features

  • Supports ACME protocol up to draft 02
  • Easy to use Java API
  • Requires JRE 7 or higher
  • Built with maven, packages available at Maven Central
  • Small, only requires jose4j and slf4j as dependencies
  • Extensive unit tests

Usage

Beta Release

Please note that acme4j is currently in beta state. The API may still change without prior notice, but I try to keep the changes minimal.

The ACME specifications are not finalized yet. The acme4j API may change as features are added to, and other features removed from the specifications. Some of the Let's Encrypt services may be restricted or not yet implemented. Also see the acme4j bug tracker for missing or untested features.

Contribute

License

acme4j is open source software. The source code is distributed under the terms of Apache License 2.0.

Acknowledgements

  • I would like to thank Brian Campbell and all the other jose4j developers. acme4j would not exist without your excellent work.