OTP

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OTP (One Time Password)

A One-Time Password (OTP) is a secure authentication method in which a password is generated for a single session or transaction. Unlike traditional passwords, which can be reused and are valid until changed, OTPs are temporary and ephemeral, providing an extra layer of security in a variety of applications, especially in online transactions and secure logins.

OTP

How OTP Works

  1. Requesting OTP: When a user attempts to log in or perform a sensitive action, they are prompted to receive an OTP. This is often done by clicking a “Send Code” button on a website or application.
  2. Generating and Sending OTP: The system generates a random OTP, typically consisting of 6 to 8 digits, and sends it to the user via SMS, email, or an authentication app like Google Authenticator.
  3. Entering OTP: The user receives the OTP and inputs it into the designated field on the website or application. The code is time-sensitive and is usually valid for a short period (e.g., 30 seconds to a few minutes).
  4. Validating OTP: Once the user enters the OTP, the system verifies the code. If the entered code matches the one generated and is still valid, access is granted. If it’s incorrect or expired, access is denied.