https://github.com/cloudflare/azul

An implementation of a static-ct-api certificate transparency log for deployment on Cloudflare Workers
https://github.com/cloudflare/azul

certificate-transparency certificate-transparency-logs cryptography merkle-tree pki web

Last synced: 5 months ago
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An implementation of a static-ct-api certificate transparency log for deployment on Cloudflare Workers

• Host: GitHub
• URL: https://github.com/cloudflare/azul
• Owner: cloudflare
• License: other
• Created: 2025-03-26T14:50:02.000Z (6 months ago)
• Default Branch: main
• Last Pushed: 2025-04-24T00:26:32.000Z (6 months ago)
• Last Synced: 2025-04-24T01:26:22.234Z (6 months ago)
• Topics: certificate-transparency, certificate-transparency-logs, cryptography, merkle-tree, pki, web
• Language: Rust
• Homepage:
• Size: 506 KB
• Stars: 16
• Watchers: 10
• Forks: 2
• Open Issues: 7
• Metadata Files:
  • Readme: README.md
  • License: LICENSE
  • Codeowners: CODEOWNERS

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README

          
# Azul

Azul (short for [azulejos](https://en.wikipedia.org/wiki/Azulejo), the colorful Portuguese and Spanish ceramic tiles) contains an implementation of a tiled certificate transparency log compatible with the [Static CT API](https://c2sp.org/static-ct-api), built for deployment on [Cloudflare Workers](https://workers.cloudflare.com). It also contains several crates implementing various C2SP specifications. Read the [blog post](https://blog.cloudflare.com/azul-certificate-transparency-log) for more details.

The crates in the repository are organized as follows:

- **[ct_worker](crates/ct_worker)**: A Static CT API log implementation for deployment on Cloudflare Workers.

- **[static_ct_api](crates/static_ct_api)** ([crates.io](https://crates.io/crates/static_ct_api)): An implementation of the [C2SP static-ct-api](https://c2sp.org/static-ct-api) specification.

- **[signed_note](crates/signed_note)** ([crates.io](https://crates.io/crates/signed_note)): An implementation of the [C2SP signed-note](https://c2sp.org/signed-note) specification.

- **[tlog_tiles](crates/tlog_tiles)** ([crates.io](https://crates.io/crates/tlog_tiles)): An implementation of the [C2SP tlog-tiles](https://c2sp.org/tlog-tiles) and [C2SP checkpoint](https://c2sp.org/tlog-checkpoint) specifications.

## Deploy

See instructions in the [ct_worker](crates/ct_worker/README.md) crate for deployment instructions.

## Build

    cargo build

## Test

    cargo test

## Benchmark

    cargo bench

## Fuzz

Follow setup instructions from  (requires nightly compiler).

    cargo fuzz run fuzz_parse_tile_path

    cargo fuzz run fuzz_parse_tree

    cargo fuzz run fuzz_parse_record