USB token authentication on Linux - Linux Tutorials - Learn Linux Configuration
PIVKey T800 USB Authentication Token (PKI Smart Card) Certificate Based PKI ideal for enterprise applications like Windows Logon, Digital Signatures, Email and Data encryption, HTTPS and SSH authentication. : Amazon.ca: Electronics
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Yubikey 4C USB C Auth Device — Pi Supply
UniMate USB | FIPS 140-2 PKI Two Factor Authentication USB Token