https://notnil.org/en/tags/authentication/Recent content in Authentication on NotNil BlogHugoen-US© Matthieu MoreauSun, 27 Nov 2022 00:00:00 +0000https://notnil.org/en/posts/6-totp/Sun, 27 Nov 2022 00:00:00 +0000https://notnil.org/en/posts/6-totp/<p><img src="https://notnil.org/images/posts/totp/time_feature.jpeg" alt=""></p> <p><em>Article originally written for the <a href="https://blog.coddity.com">Coddity blog</a></em></p> <p>For a while now I&rsquo;ve been building, in my spare time, a complete authentication service, with the aim of implementing a lot of authentication mechanisms: magic link, login/password, Oauth2, account validation, password recovery, and the famous 2FA.</p> <p>I&rsquo;ll admit I used Google Authenticator every day without ever thinking to look at the mechanism &ldquo;under the hood&rdquo;. This article is the plain-language version of what I learned.</p>