There is no way to read your existing 'Public ID' (if you did not use the device serial), 'Private ID', and 'Secret Key' information off the token once it has been written. When you open the Yubico OTP settings (under Applications), you may generate a new 'Public ID', 'Private ID', and/or 'Secret Key', but these are not written to the token unless you actually click the Finish button. Using YubiKey Managerįirst, download and install the YubiKey Manager. You must upload the new credential to YubiCloud to continue using that service.

If you are using your YubiKey with a service that integrates with Yubico's OTP service and you overwrite that factory configuration in the first slot, you cannot recover that configuration. You will no longer be able to use the YubiKey to log into other services unless you also update the stored secret information there. If you are already using this YubiKey with an existing service, the following steps will overwrite the stored secret for that service. When the YubiKey is shipped its first configuration slot is factory programmed for the 'Works with YubiKey' YubiCloud OTP service and the second configuration slot is blank. The second slot is used if the button is touched between 2 and 5 seconds. The first slot is used to generate the passcode when the YubiKey is touched for between 0.3 and 1.5 seconds and released. Generate YubiKey ConfigurationĮach YubiKey with OTP support has two slots. Verify your YubiKey's capabilities at the Yubico site. This information applies to YubiKey tokens that support one-time password (OTP) functionality, like the YubiKey 5 series or YubiKey 4 series. If you do not know the current stored secret you can use the YubiKey Manager to reconfigure the YubiKey. To use a YubiKey hardware token you will need to enter its stored secret in your Duo Admin Panel. Learn how to configure YubiKey hardware tokens for OTP use with Duo for authentication.

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