Spring Security Form Login with Google Authenticator (Time-based One-time Password Algorithm, TOTP)
Online Demo: https://totp-omed.hplar.ch/
Blog post: https://golb.hplar.ch/2019/06/totp-spring-security.html
ralscha/springsecuritytotp
Spring Security Login with Google Authenticator (Time-based One-time Password Algorithm, TOTP)
JavaMIT