Is there any open-source .net libraries available for Timebased OTP (TOTP)? [closed]

Question

One of my clients is looking for a two-step verification for user login. They are looking for something similar to the Github two-step verification that fits with any TOTP application available in the market such as Google Authenticator.

Is there any open source libraries available in C# that can be used for generating Time-based One-Time Password.

Answer 1

You should have first tried searching it on GitHub and Nuget. Anyway here are some:

https://github.com/google/google-authenticator

https://github.com/brandonpotter/GoogleAuthenticator

https://github.com/Yortw/Yort.Otp

https://github.com/kspearrin/Otp.NET

You should test them and check if they fits your needs. Once you get the best suitable one, you can post back your findings.