Top 3 C Certificate Projects

putty-cac

12 444 6.2 C

Windows Secure Shell Client With Support For Smart Cards, Certificates, & FIDO Keys

Project mention: NIST: Personal Identity Verification (PIV) of Federal Employees and Contractors | news.ycombinator.com | 2024-03-23

PuTTY-CAC was an interesting, although imperfect solution to using PIV/CAC cards together with SSH. I remember piloting it from 2013-2014 at an agency. Back then, it was maintained by Dan Risacher[0]. Nowadays it is maintained on GitHub[1] and adopted some interesting features like FIDO.
[0] https://risacher.org/putty-cac/
[1] https://github.com/NoMoreFood/putty-cac

mod_md

3 330 6.6 C

Let's Encrypt (ACME) in Apache httpd

Project mention: Ask HN: What should a Alternative to LetsEncrypt offer | news.ycombinator.com | 2024-04-11

There's already other CAs that (optionally) use ACME to issue. As I understand it from the mod_md readme [1], Buypass basically works (without must staple), Sectigo and ZeroSSL work too, but require an account to be setup.
Are these true alternatives? If not, why not? I don't know where these companies reside.
[1] https://github.com/icing/mod_md?tab=readme-ov-file#known-iss...

InfluxDB

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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.
tls-scan

2 273 4.3 C

An Internet scale, blazing fast SSL/TLS scanner ( non-blocking, event-driven )

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).