freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.

A simple zero-config tool to make locally trusted development certificates with any names you'd like.

A curated list of free courses with certifications. Also available at https://free-certifications.com/

A pure Unix shell script ACME client for SSL / TLS certificate automation

FCC China open source codebase and curriculum. Learn to code and help nonprofits.

Infisical is the open-source platform for secrets, certificates, and privileged access management.

Capturing SSL/TLS plaintext without a CA certificate using eBPF. Supported on Linux/Android kernels for amd64/arm64.

Automatically provision and manage TLS certificates in Kubernetes

A set of exercises to prepare for Certified Kubernetes Application Developer exam by Cloud Native Computing Foundation

This repository will contain many mindmaps for cyber security technologies, methodologies, courses, and certifications in a tree structure to give brief details about them

An open-source and free self-hosted SSL certificates ACME tool, automates the full-cycle of issuance, deployment, renewal, and monitoring visually. 完全开源免费的自托管 SSL 证书 ACME 工具，申请、部署、续期、监控全流程自动化可视化，支持各大主流云厂商。

🛡️ A private certificate authority (X.509 & SSH) & ACME server for secure automated certificate management, so you can use TLS everywhere & SSO for SSH.

Automated ACME SSL certificate generation for nginx-proxy

📚Open Source Curriculum for CNCF Certification Courses

OpenBao is a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys.

An ACME-based certificate authority, written in Go.

Automate SSL/TLS certificates on Windows with ease

Automatic HTTPS for any Go program: fully-managed TLS certificate issuance and renewal

An xposed module that disables SSL certificate checking for the purposes of auditing an app with cert pinning

Curated list of 20,000+ hours and 200+ free courses with certificates in IT, CS, Design and Business.

Online resources that will help you prepare for taking the CNCF CKA 2020 "Kubernetes Certified Administrator" Certification exam. with time, This is not likely the comprehensive up to date list - please make a pull request if there something that should be added here.

Google Cloud Platform Certification resources.

AWS Certified Cloud Practitioner Short Notes And Practice Exams (CLF-C02)

Free on-device iOS/iPadOS application manager/installer, using certificates part of the Apple Developer Program.

iReSign allows iDevice app bundles (.ipa) files to be signed or resigned with a digital certificate from Apple for distribution. This tool is aimed at enterprises users, for enterprise deployment, when the person signing the app is different than the person(s) developing it.

Tool for Active Directory Certificate Services enumeration and abuse

AllinSSL 是一个集证书申请、管理、部署和监控于一体的SSL证书全生命周期管理工具。AllinSSL is an all-in-one SSL certificate lifecycle management tool that integrates certificate application, management, deployment, and monitoring.

The 'jsrsasign' (RSA-Sign JavaScript Library) is an opensource free cryptography library supporting RSA/RSAPSS/ECDSA/DSA signing/validation, ASN.1, PKCS#1/5/8 private/public key, X.509 certificate, CRL, OCSP, CMS SignedData, TimeStamp, CAdES and JSON Web Signature/Token in pure JavaScript.

Updog is a replacement for Python's SimpleHTTPServer. It allows uploading and downloading via HTTP/S, can set ad hoc SSL certificates and use http basic auth.

minica is a small, simple CA intended for use in situations where the CA operator also operates each host where a certificate will be used.