Top 5 Go certificate-transparency Projects

trillian

9 3,463 9.6 Go

A transparent, highly scalable and cryptographically verifiable data store.
certspotter

4 913 6.9 Go

Certificate Transparency Log Monitor

Project mention: SSLMate/Certspotter: Certificate Transparency Log Monitor | news.ycombinator.com | 2023-11-02

WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
ct-woodpecker

1 170 3.6 Go

A tool to monitor a certificate transparency log for operational problems

Project mention: I looked through attacks in my access logs. Here's what I found | news.ycombinator.com | 2024-01-28

Was looking into Certificate Transparency logs recently. Are there any convenient tools/methods for querying CT logs? i.e. search for domains within a timeframe
Cloudflare’s Merkle Town[0] is useful for getting overviews, but I haven’t found an easy way to query CT logs. ct-woodpecker[1] seems promising, too
[0] https://ct.cloudflare.com/
[1] https://github.com/letsencrypt/ct-woodpecker

sunlight

3 107 8.9 Go

A Certificate Transparency log implementation and monitoring API designed for scalability, ease of operation, and reduced cost.

Project mention: Sunlight, a Certificate Transparency log implementation | news.ycombinator.com | 2024-03-15

This is one of the projects I've been most excited about in the last few years. It let me backport to Certificate Transparency a lot of the modern transparency logging designs that came after it.
Beyond the Let's Encrypt announcement and the ct-policy thread (which includes a technical and advantages summary), here are a few resources that might be interesting.
- Design document https://filippo.io/a-different-CT-log
- Implementation https://github.com/FiloSottile/sunlight
- API specification https://c2sp.org/sunlight
- Website, including test logs and feedback channels https://sunlight.dev/
If you’re thinking “oh we could use something similar” please reach out! Sunlight is retrofitting some of the modern tlog designs on a legacy system. With a greenfield deployment you can do even better! I’m working with the Sigsum project on specs, tooling, and a support ecosystem to make deploying tlogs easier and safer.

crt

2 65 1.8 Go

A CLI tool to check Certificate Transparency logs of a domain name. (by cemulus)
InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).