sriharsha.uppuluri's sandbox: One Time Password For Forms (OTPF)

This module add OTP Integration for any Drupal Forms. For any forms that might require high-security or needs better spam prevention this module can be used.

OTP feature can be added to any forms by adding your custom submit function to the form submission handler and then call the otp_generate_otp function within your custom submit function with the right parameters.