The Email OTP method enables you to authenticate using the one-time password (OTP) that is sent to the registered email address. When you try to authenticate on any device, the server sends an email to the registered email address with the OTP. You can use this OTP for single authentication within a short time frame. Digital TechMART's Email OTP is a simple identification method based on one-time passwords (OTP) sent by email. This is a typical scenario:

• A user accesses a service that requires some sort of identification.

• A merchant sends an email with an OTP code to the user.

• The user enters the received code in the merchant's application.

• The merchant receives the user's email in the response from Digital TechMART

Although this method alone does not provide a high level of security, from a technical standpoint there is nothing that prevents a merchant from using Email OTP as a standalone authentication method. However, it is more common and recommended to use this method to boost an existing login process. Email OTP integrated with any username/password login solution will form a two-factor authentication method.