OTP Verification using Python

Do you know how you get a unique OTP every time you go through the payment process in an online transaction? Each company has its ways of creating an OTP for verification, but most of the companies have their systems programmed to generate a 6-digit random number. In this article, I will walk you through the task of OTP verification using Python. By the end of this article, you will be able to send a unique OTP to any email id for the OTP verification task.

Steps to Create an OTP Verification System using Python

OTP Verification is the process of verifying a user by sending a unique password so that the user can be verified before completing a registration or payment process. Most of the time, we get an OTP when we make an online payment, or when we forget our password, or when creating an account on any online platform. Thus, the sole purpose of an OTP is to verify the identity of a user by sending a unique password.

We can easily create an application for the task of OTP verification using Python by following the steps mentioned below:

First, create a 6-digit random number

Then store the number in a variable

Then we need to write a program to send emails

When sending email, we need to use OTP as a message

Finally, we need to request two user inputs; first for the user’s email and then for the OTP that the user has received.

So this is the complete process of creating an OTP verification application using Python. In the section below, I will take you through how to implement these steps using Python for the task of OTP verification.

OTP Verification using Python

I hope you now have understood what is an OTP and how we can create an application for the task of OTP verification. Now let’s follow the steps mentioned above by using Python to create an application for the task of OTP verification. I will start by importing the necessary Python library that we need for this task:

Once you run this code you enter an email where you want to send an OTP and then enter the OTP that you have received in the email. You can get the complete code used in this article for the task of OTP verification from below.

CODE :

import os

import math

import random

import smtplib

digits="0123456789"

OTP=""

for i in range(6):

    OTP+=digits[math.floor(random.random()*10)]

otp = OTP + " is your OTP"

msg= otp

s = smtplib.SMTP('smtp.gmail.com', 587)

s.starttls()

s.login("Your Gmail Account", "You app password")

emailid = input("Enter your email: ")

s.sendmail('&&&&&&&&&&&',emailid,msg)

a = input("Enter Your OTP >>: ")

if a == OTP:

    print("Verified")

else:

    print("Please Check your OTP again")