Comparison — GreenRADIUS vs Duo
Advantages of GreenRADIUS
Compare the features of GreenRADIUS versus Duo Security below
| GreenRADIUS | Duo Security | |
| Tokens supported | YubiKeys, FIDO tokens, OATH tokens (including Google Authenticator), our own Green Rocket 2FA mobile app | YubiKeys, OATH tokens, FIDO U2F tokens, Duo Mobile app |
| Allows for multiple tokens for each user | Yes | Yes |
| Users pre-selecting tokens before authentication | Users DO NOT need to pre-select which token they will use as their second factor. Users can simply use any of their assigned tokens for authentication. | Users MUST pre-select which token they will use as their second factor. Each time a different token will be used, users must select the token prior to authentication. |
| Auto-enrollment of YubiKeys | Yes, GreenRADIUS can be configured so YubiKeys can be assigned to users automatically upon first use. | No, users must register their YubiKeys. |
| On-premise / Cloud | Yes, GreenRADIUS can be either an on-premise solution, where GreenRADIUS can be set up in an organization’s network and behind its firewall or in a cloud environment, such as an organization’s AWS infrastructure. | Cloud only |
| Windows Logon | YubiKeys and other FIDO U2F tokens can be used for online AND offline login attempts | YubiKeys and other FIDO U2F tokens can be used for offline login attempts ONLY. They CANNOT be used for online login attempts |
| High availability / Synchronization | Multiple GreenRADIUS servers can be synced to provide a HA/failover configuration. For an on-premise solution, even if the external internet is down or offline, users can still authenticate on the internal network. | N/A |
| Token secrets and authentications | GreenRADIUS securely stores and protects token secrets internally. Authentications are also done securely. | Token secrets are stored in the cloud. Authentication requests are also sent to the cloud. |
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