Methods and devices of authentication via user behavior for use in a mobile device. The method may include initiating an authentication via user behavior for an application transaction process and suspending the application transaction process before the authentication is successful; acquiring the latest radio frame from a beacon and determining a distance parameter based on the radio frame after the authentication is initialized; determining whether a specified distance condition is satisfied for the beacon and the mobile device; and in response to a determination that the specified distance condition is satisfied for the beacon and the mobile device, determining that the authentication is successful and resuming the application transaction process that was suspended previously. The present disclosure can efficiently perform user authentication via behavior, quickly achieve execution of the transaction process, and avoid an excessive manual operation, thus being applicable in a variety of offline interactive processes.