Alternatives and similar repositories for research

Users that are interested in research are comparing it to the libraries listed below

• ssllabs / ssllabs-scan
  A command-line reference-implementation client for SSL Labs APIs, designed for automated and/or bulk testing.
  ☆1,749Updated last year
• mozilla / cipherscan
  A very simple way to find out which SSL ciphersuites are supported by a target.
  ☆1,990Updated 6 months ago
• mozilla / server-side-tls
  Server side TLS Tools
  ☆1,132Updated 10 months ago
• chromium / badssl.com
  Memorable site for testing clients against bad SSL configs.
  ☆2,976Updated last year
• arthepsy / ssh-audit
  SSH server auditing (banner, key exchange, encryption, mac, compression, compatibility, security, etc)
  ☆2,982Updated last year
• ivanr / bulletproof-tls
  ☆380Updated 8 years ago
• nabla-c0d3 / sslyze
  Fast and powerful SSL/TLS scanning library.
  ☆3,695Updated 4 months ago
• mozilla / tls-observatory
  An observatory for TLS configurations, X509 certificates, and more.
  ☆541Updated 2 months ago
• rbsec / sslscan
  sslscan tests SSL/TLS enabled services to discover supported cipher suites
  ☆2,558Updated last week
• mozilla / http-observatory
  Mozilla HTTP Observatory
  ☆1,852Updated last year
• securitytxt / security-txt
  A proposed standard that allows websites to define security policies.
  ☆1,846Updated 3 years ago
• OWASP / DevGuide
  The OWASP Developer Guide
  ☆2,120Updated last week
• ietf-wg-acme / acme
  A protocol for automating certificate issuance
  ☆943Updated 6 years ago
• chromium / hstspreload.org
  Chromium's HSTS preload list submission website.
  ☆833Updated 2 weeks ago
• cloudflare / sslconfig
  Cloudflare's Internet facing SSL configuration
  ☆1,304Updated last year
• firehol / firehol
  A firewall for humans...
  ☆1,561Updated 4 months ago
• dnsviz / dnsviz
  ☆1,150Updated 7 months ago
• Netflix / lemur
  Repository for the Lemur Certificate Manager
  ☆1,760Updated 2 weeks ago
• SpiderLabs / owasp-modsecurity-crs
  OWASP ModSecurity Core Rule Set (CRS) Project (Official Repository)
  ☆2,474Updated 5 years ago
• testssl / testssl.sh
  Testing TLS/SSL encryption anywhere on any port
  ☆8,740Updated last week
• Netflix / security-bulletins
  Security Bulletins that relate to Netflix Open Source
  ☆746Updated last year
• tlswg / tls13-spec
  TLS 1.3 Specification
  ☆574Updated 2 weeks ago
• mozilla / ssh_scan
  DEPRECATED - A prototype SSH configuration and policy scanner (Blog: https://mozilla.github.io/ssh_scan/)
  ☆789Updated 3 years ago
• mozilla / ssl-config-generator
  Mozilla SSL Configuration Generator
  ☆419Updated 3 weeks ago
• Tripwire / tripwire-open-source
  Open Source Tripwire®
  ☆915Updated last year
• google / certificate-transparency
  Auditing for TLS certificates.
  ☆883Updated 2 years ago
• OpenSCAP / openscap
  NIST Certified SCAP 1.2 toolkit
  ☆1,625Updated this week
• dev-sec / linux-baseline
  DevSec Linux Baseline - InSpec Profile
  ☆836Updated last month
• C2SP / wycheproof
  Project Wycheproof tests crypto libraries against known attacks.
  ☆2,914Updated 3 weeks ago
• usnistgov / 800-63-3
  Home to public development of NIST Special Publication 800-63-3: Digital Authentication Guidelines
  ☆719Updated 3 months ago