Yubikey 5 Win 10 20H2 x64 Pro PIV EFS Setup
PIV on Yubikey can be utilized for SSH authentication, Windows OS login authentication, NTFS Encrypted File System (EFS) support, Bitlocker and other use cases. The examples below are using self-signed certificates and keys generated on the Yubikey secure element, but can be customized for an enterprise environment with a root CA/intermediate CA and trusted certificate chains as needed. Note: While using a CA allows for easier scalable management, this also increases the required ring of trust, and thus can potentially decrease security if not managed properly.
Requires: Windows 10 Pro (20H2 used in the document, but will work on earlier versions of Pro), Yubikey 4 or 5 security token.
PIV References:
NIST: https://csrc.nist.gov/publications/detail/sp/800-73/4/final
Yubico PIV Setup: https://developers.yubico.com/PIV/Guides/Device_setup.html