Authenticator apps
Authenticator apps are essentially one-time password (OTP)–based third party-authenticators. Users can use an authenticator application installed on their mobile device or tablet as an authorized MFA device. The third-party authenticator application must be compliant with RFC 6238, which is a standards-based TOTP (time-based one-time password) algorithm capable of generating six-digit authentication codes.
When prompted for MFA, users must enter a valid code from their authenticator app within the input box presented. Each MFA device assigned to a user must be unique. Two authenticator apps can be registered for any given user.
Tested authenticator apps
Although any TOTP-compliant application will work with IAM Identity Center MFA, the following table lists well-known third-party authenticator apps to choose from.
| Operating system | Tested authenticator app |
|---|---|
| Android | Authy |
| iOS | Authy |
