YubiKey Personalization Tool

YubiKey is a small hardware device used for two-factor authentication. The YubiKey Personalization Tool is an application to customize a YubiKey with your own cryptographic key and mode options for one-time password, static password, or challenge-response. It can also be used to identify the firmware on a key, its serial number, and which features it supports. Use the YubiKey Personalization Tool to configure a single YubiKey, or configure multiple keys in batches (up to 100).