# Passwordless/QR code login

**URL:** <https://meta.discourse.org/t/passwordless-qr-code-login/99786>\
**Category:** Feature\
**Created:** [October 17, 2018, 11:48pm UTC](https://meta.discourse.org/t/passwordless-qr-code-login/99786 "2018-10-17T23:48:00Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![Soni](https://avatars.discourse-cdn.com/v4/letter/s/a3d4f5/32.png) [@Soni](https://meta.discourse.org/u/Soni)\
**Post date:** [October 17, 2018, 11:48pm UTC](https://meta.discourse.org/t/passwordless-qr-code-login/99786/1 "2018-10-17T23:48:00Z")

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If a device has a screen, and another device has a camera, it should be trivial to login using a QR code between the two.

This avoids the use of passwords, and could even allow passwords to be disabled completely! You can’t breach/leak something that doesn’t exist!

(Alternatively, client-cert-wrapped public key authentication, similar to SSH, would also be nice. This way, the key is derived client-side and no password or private key or other secret is ever sent to the server. It’s also 100% MITM proof, unlike the QR codes. Might be a while until HTTPS clients start adding support for this, tho…)

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