mirror of https://github.com/shred/acme4j
65 lines
3.8 KiB
Markdown
65 lines
3.8 KiB
Markdown
# ACME Java Client  
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This is a Java client for the _Automatic Certificate Management Environment_ (ACME) protocol as specified in [RFC 8555](https://tools.ietf.org/html/rfc8555).
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ACME is a protocol that a certificate authority (CA) and an applicant can use to automate the process of verification and certificate issuance.
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This Java client helps connecting to an ACME server, and performing all necessary steps to manage certificates.
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## Features
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* Mature and stable code base. First release was in December 2015!
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* Fully [RFC 8555](https://tools.ietf.org/html/rfc8555) compliant
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* Supports the `http-01`, `dns-01`, and `tls-alpn-01` ([RFC 8737](https://tools.ietf.org/html/rfc8737)) challenges
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* Supports [RFC 8738](https://tools.ietf.org/html/rfc8738) IP identifier validation
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* Supports [RFC 8739](https://tools.ietf.org/html/rfc8739) short-term automatic certificate renewal (experimental)
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* Supports [RFC 8823](https://tools.ietf.org/html/rfc8823) for S/MIME certificates (experimental)
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* Supports [RFC 9444](https://tools.ietf.org/html/rfc9444) for subdomain validation
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* Supports [draft-ietf-acme-ari-06](https://www.ietf.org/archive/id/draft-ietf-acme-ari-06.html) for renewal information (experimental)
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* Easy to use Java API
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* Requires JRE 11 or higher
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* Supports [Buypass](https://buypass.com/), [Google Trust Services](https://pki.goog/), [Let's Encrypt](https://letsencrypt.org/), [SSL.com](https://www.ssl.com/), [ZeroSSL](https://zerossl.com/), and all other CAs that comply with the ACME protocol (RFC 8555). Note that _acme4j_ is an independent project that is not supported or endorsed by any of the CAs.
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* Built with maven, packages available at [Maven Central](http://search.maven.org/#search|ga|1|g%3A%22org.shredzone.acme4j%22)
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* Extensive unit and integration tests
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* Adheres to [Semantic Versioning](https://semver.org/)
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## Dependencies
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* [Bouncy Castle](https://www.bouncycastle.org/)
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* [jose4j](https://bitbucket.org/b_c/jose4j/wiki/Home)
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* [slf4j](http://www.slf4j.org/)
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* For `acme4j-smime`: [Jakarta Mail](https://eclipse-ee4j.github.io/mail/), [Bouncy Castle](https://www.bouncycastle.org/)
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## Usage
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* See the [online documentation](https://shredzone.org/maven/acme4j/) about how to use _acme4j_.
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* For a quick start, have a look at [the source code of an example](https://shredzone.org/maven/acme4j/example.html).
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## Announcements
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Follow our Mastodon feed for release notes and other acme4j related news.
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* Mastodon: `@acme4j@foojay.social`
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* RSS: https://foojay.social/@acme4j.rss
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## Contribute
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* Fork the [Source code at GitHub](https://github.com/shred/acme4j). Feel free to send pull requests (see [Contributing](CONTRIBUTING.md) for the rules).
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* Found a bug? [File a bug report!](https://github.com/shred/acme4j/issues)
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## License
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_acme4j_ is open source software. The source code is distributed under the terms of [Apache License 2.0](http://www.apache.org/licenses/LICENSE-2.0).
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## Donate
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If you would like to support my work on _acme4j_, you can do so on at [GitHub Sponsors](https://github.com/sponsors/shred) or at [Ko-Fi](https://ko-fi.com/shredzone). Thank you!
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## Acknowledgements
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* I would like to thank Brian Campbell and all the other [jose4j](https://bitbucket.org/b_c/jose4j/wiki/Home) developers. _acme4j_ would not exist without your excellent work.
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* Thanks to [Daniel McCarney](https://github.com/cpu) for his help with the ACME protocol, Pebble, and Boulder.
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* [Ulrich Krause](https://github.com/eknori) for his help to make _acme4j_ run on IBM Java VMs.
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* I also like to thank [everyone who contributed to _acme4j_](https://github.com/shred/acme4j/graphs/contributors).
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* The Mastodon account is hosted by [foojay.io](https://foojay.io).
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