digicert – Mitigating Risk: The Importance of Considering Your Certificate Practices

SANS Whitepaper – Building and Managing a PKI Solution

NIST SP 800-77 Guide to IPSec VPNs

Amazon – How to protect data in transit

Microsoft – Azure Data Security and Encryption Best Practices

NetworkWorld – Transport Layer Security (TLS)

NIST SP 800-95 Guide to Secure Web Services

NIST SP 800-113 Guide to SSL VPNs

DISA – Security Technical Information Guide (STIG): Web Server Version 7, Release 1 Checklist Details

NIST SP 800-44 Guidelines on Securing Public Web Servers