Yubico公司生产的一种安全密钥，支持的功能包括： Secure Static Passwords, Yubico OTP, OATH – HOTP (Event), OATH – TOTP (Time), Smart Card (PIV-Compatible), OpenPGP, FIDO U2F, FIDO2.
功能模块
1. FIDO
2. OTP
3. CCID
参考资料
不同型号特性比较 https://www.yubico.com/products/compare-products-series/
官方手册 https://support.yubico.com/support/solutions/articles/15000014219-yubikey-5-series-technical-manual
固件5.2.3 https://www.yubico.com/blog/whats-new-in-yubikey-firmware-5-2-3/
YubiKey Handbook https://ruimarinho.gitbooks.io/yubikey-handbook/content/