Authentication Methods
SmartSign supports various methods of authentication as shown below. You can choose which methods to allow when configuring your MFA deployment on the SmartSign Portal.
![OATH OTP hardware tokens supporting HOTP and TOTP](/images/smartsign/otp-square-370.png)
OATH OTP Tokens
SmartSign supports OATH One Time Password (OTP) hardware tokens, both HOTP and TOTP.
![Use Dinkey Pro dongles for MFA](/images/smartsign/dinkey-blue-large.png)
Dinkey Pro Dongles
Create simple, secure website access control for Dinkey Pro dongle users. USB dongle based authentication.