Login With Otp Support

Currently we have support for Password Based Login in Spring Security. But I can't find any support for Login With OTP or any description on same in Reference Documentation. Now a days its very common for any application to provide Login with OTP to deal with problem of User forgetting password. In order to deal with problem of user forgetting password we have other solutions like login with oauth, openid, qrcode based login but still Login with OTP is very widely used. The whole point of raising this ticket is to have healthy discussion on same and come up with best way to implement same in form of either adding support in Spring Security, or having a description in Reference Documentation to implement same or adding a sample application for same in Spring Security Sample Examples. In either form it will be beneficial for large community of Spring Security.

Start by reviewing Spring Security's existing password-based login support, Reference Documentation, and Spring Security Sample Examples. The issue leaves the implementation, documentation, or sample scope open, so the work is complete only after the project determines and delivers one agreed approach for OTP login support.