A Novel Approach of OTP Generation Using Time-Based OTP and Randomization Techniques

There are many ways of generating OTP in and performing user authentication, earlier authentication in a traditional way happened using username and password which became way popular in the digital world. Then, OTP came into the picture, and one-time password is the technique which is two-way authentication. This paper proposes an algorithm that will give an easy way to implement as well as a very secure OTP generation method. This OTP will be a combination of current time value and back-end server-generated value with some random operations on that combined value. This value is 32 bit in size which will give a combination of 8-digit numbers. The proposed OTP algorithm is easier to develop on the other side difficult to reverse engineer and gives efficient performance.