Open Source Certificate Authority (CA) by SYNRC.
It provides Public Key Infrastructure (PKI) with both:
Elliptic Curve Cryptography (ECC), best suited for IoT security;
and legacy Rivest–Shamir–Adleman (RSA) cryptography. It also
supports CSR certificate enrollment and provides OCSP responder
for fast revokation checking. As a dependency it contains LDAP directory