https://github.com/djc/instant-acme

Simple ACME client
https://github.com/djc/instant-acme

acme rust

Last synced: 3 months ago
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Simple ACME client

• Host: GitHub
• URL: https://github.com/djc/instant-acme
• Owner: djc
• License: apache-2.0
• Created: 2022-05-12T08:02:56.000Z (about 3 years ago)
• Default Branch: main
• Last Pushed: 2025-03-28T17:00:40.000Z (3 months ago)
• Last Synced: 2025-04-12T05:36:31.373Z (3 months ago)
• Topics: acme, rust
• Language: Rust
• Homepage:
• Size: 256 KB
• Stars: 119
• Watchers: 5
• Forks: 24
• Open Issues: 6
• Metadata Files:
  • Readme: README.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE

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README

        
# instant-acme: async, pure-Rust ACME client

[![Documentation](https://docs.rs/instant-acme/badge.svg)](https://docs.rs/instant-acme/)

[![Crates.io](https://img.shields.io/crates/v/instant-acme.svg)](https://crates.io/crates/instant-acme)

[![Build status](https://github.com/djc/instant-acme/workflows/CI/badge.svg)](https://github.com/djc/instant-acme/actions?query=workflow%3ACI)

[![License: Apache 2.0](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](LICENSE-APACHE)

instant-acme is an async, pure-Rust ACME (RFC 8555) client.

instant-acme is used in production at [Instant Domain Search](https://instantdomainsearch.com/) to help

us provision TLS certificates within seconds for our customers. instant-acme relies

on Tokio and rustls to implement the [RFC 8555](https://www.rfc-editor.org/rfc/rfc8555.html)

specification.

## Features

* Store/recover your account credentials by serializing/deserializing

* Fully async implementation with tracing support

* Support for processing multiple orders concurrently

* Support for external account binding

* Support for certificate revocation

* Support for the [ACME renewal information (ARI)] extension

* Support for the [profiles] extension

* Uses hyper with rustls and Tokio for HTTP requests

* Uses *ring* or aws-lc-rs for ECDSA signing

* Minimum supported Rust version (MSRV): 1.70

[ACME renewal information (ARI)]: https://www.ietf.org/archive/id/draft-ietf-acme-ari-08.html

[profiles]: https://datatracker.ietf.org/doc/draft-aaron-acme-profiles/

## Cargo features

* `hyper-rustls` (default): use a hyper client with rustls

* `aws-lc-rs` (default): use the aws-lc-rs crate as the crypto backend

* `ring`: use the *ring* crate as the crypto backend

* `fips`: enable the aws-lc-rs crate's FIPS-compliant mode

* `x509-parser`: enable extracting `CertificateIdentifier` values for ARI from

  certificates

* `time`: enable fetching `RenewalInfo` for a `CertificateIdentifier`

If both `ring` and `aws-lc-rs` are enabled, `aws-lc-rs` will be used.

## Limitations

* Only supports P-256 ECDSA account keys for now

## Getting started

See the [examples](examples) directory for an example of how to use instant-acme.