Clef - secure, passwordless, two-factor login

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Clef is two-factor authentication that's beautifully simple and secure. All magento versions supported.
Compatible with:
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Clef - secure, passwordless, two-factor login

Clef replaces passwords with beautifully simple, strongly encrypted, two-factor authentication using your smartphone.

Version 1.2.1 (released 12/05/2015)

How does Clef work?

Logging in with Clef is as easy as holding up your phone.

  1. Click the "Log in with your phone" button
  2. Sync the Clef Wave with your Clef app
  3. You're securely logged in without ever typing a password

See in action here

Is Clef more secure thatn usernames and passwords?

Yes. Clef is two-factor authentication that wraps public-key cryptography to securely log you in. The architecture is fully distributed, so even if an attacker compromised Clef's central database, they would not be any closer to stealing your identity.

How much does using Clef cost?

Clef is free for websites up to 250 administrators.

Download the Clef mobile app

When you download the extension, you'll be walked through a seamless tutorial that will get you fully set up on both your site and your phone. If you're anxious, however, you can download the apps for iOS or Android here

Extension features

  • Easy setup wizard that will have you up and running in less than 3 minutes
  • Ability to fully disable passwords and force two-factor authentication with Clef for all users
  • Limit who can and cannot use Clef to log in
  • Simple debugging with integrated logs

Extension support

For support directly related to the extension, visit the php4u support board.

For support with Clef, email

Why purchase from php4u

  • Beautiful documentation and instructions in HTML & PDF
  • Magento Plus certification
  • Code is unencrypted and easy to extend for your needs
  • 7-day money back guarantee
  • Instant download from our store
  • Free updates for one year
  • Free support for one year


Clef login alongside passwords

Clef login with passwords disabled

Clef settings

M1 Extension Versions

1.2.1 version

2015-05-12 19:37:51
  • Version number: 1.2.1
  • Stability: Stable
  • Compatibility: 1.5, 1.6, 1.6.1,, 1.7, 1.8, 1.8.1, 1.9
Added state cookie

1.0.9 version

2014-07-16 21:03:48
  • Version number: 1.0.9
  • Stability: Stable
  • Compatibility: 1.5, 1.6, 1.6.1,, 1.7, 1.8, 1.8.1, 1.9
Fully featured stable version
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Magento Platform Support

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About the Developer

This extension was developed by and is supported by Php4u

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