ocsp

Testing TLS/SSL encryption anywhere on any port

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.

PKI.js is a pure JavaScript library implementing the formats that are used in PKI applications (signing, encryption, certificate requests, OCSP and TSP requests/responses). It is built on WebCrypto (Web Cryptography API) and requires no plug-ins.

Highly scalable and high-performance open source PKI (CA and OCSP responder). Minimal dependencies.

Python ASN.1 library with a focus on performance and a pythonic API

The Dogtag Certificate System is an enterprise-class Certificate Authority (CA) which supports all aspects of certificate lifecycle management, including key archival, OCSP and smartcard management.

⭐ Приложение-сервер для работы с Электронно Цифровой Подписью (ЭЦП) РК

Something could be public patches

Django app providing a Certificate Authority

Sockets with TLS 1.3 security for VB6

OCSP responder for Hashicorp Vault PKI

NodePKI is a simple NodeJS based PKI manager for small corporate environments.

An implementation of TLS and related specifications in Common Lisp

wolfSSL JSSE provider and JNI wrapper for SSL/TLS, supporting up to TLS 1.3!

Easy-to-use high-level library for PKI-enabled applications

Privacy-Preserving Noise Machine for Apple Developer ID OCSP

OCSP-Checker provides an automated means to check the OCSP revocation status for a x509 digital certificate.

OCSP responder written in Go meant to be used with easy-rsa

Multi-level Certificate Authority Management tool, front-end tool to OpenSSL, written in bash shell.

Certgrinder is a client/server system for getting LetsEncrypt certificates for your infrastructure. ACME challenges are handled by the Certgrinder server, making it possible to get certificates in highly isolated environments, since only an SSH connection to the Certgrinder server is needed.