+8.1.2.4 Single-Factor OTP

8.1.2.4 Single-Factor OTP

Typical Usage

Users access the OTP generated by the single-factor OTP authenticator. The authenticator output is typically displayed on the authenticator, and the user enters it during the session being authenticated.

Usability considerations for typical usage include the following:

Authenticator output allows at least one minute between changes but ideally allows users two full minutes, as specified in Sec. 3.1.4.1. Users need adequate time to enter the authenticator output, including looking back and forth between the single-factor OTP authenticator and the entry screen.

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