authorized_keys 지옥 탈출, SSH Certificate로 구현하는 무상태 인증 체계
Why SSH Key Management Is Broken and How Certificates Fix It
디스크 내 Private Key 제거, YubiKey FIDO2로 구현한 물리적 보안 강화
YubiKey SSH Authentication: Stop Trusting Key Files on Disk
Why SSH Key Management Is Broken and How Certificates Fix It
YubiKey SSH Authentication: Stop Trusting Key Files on Disk