x509 topic
xca
X Certificate and Key management
forge
A native implementation of TLS in Javascript and tools to write crypto-based and network-heavy webapps
botan
Cryptography Toolkit
certificates
🛡️ A private certificate authority (X.509 & SSH) & ACME server for secure automated certificate management, so you can use TLS everywhere & SSO for SSH.
phpseclib
PHP Secure Communications Library
go-guardian
Go-Guardian is a golang library that provides a simple, clean, and idiomatic way to create powerful modern API and web authentication.
jsrsasign
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, CR...
PSPKI
PowerShell PKI Module
cli
🧰 A zero trust swiss army knife for working with X509, OAuth, JWT, OATH OTP, etc.
certigo
A utility to examine and validate certificates in a variety of formats