PKI - Public Key Infrastructure

XXX X.509

XXX mention use of certificates for web server authentication (HTTPS/SSL/TLS)

XXX mention use of certificates for API server authentication

XXX OpenSSH proprietary certificates

XXX Explain use of certificates for host key authentication in SSH

XXX mention IETF drafts we helped write

XXX Mention SPKI

XXX Mention Certifier

XXX explain attacks using forged certificates, man-in-the-middle

XXX explain heartbleed and leakd private keys