https://github.com/google/google-authenticator

Open source version of Google Authenticator (except the Android app)
https://github.com/google/google-authenticator

Last synced: 1 day ago
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Open source version of Google Authenticator (except the Android app)

• Host: GitHub
• URL: https://github.com/google/google-authenticator
• Owner: google
• License: apache-2.0
• Archived: true
• Created: 2014-10-08T17:54:27.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2020-09-28T13:57:17.000Z (about 4 years ago)
• Last Synced: 2024-05-21T12:56:18.289Z (6 months ago)
• Language: Java
• Homepage:
• Size: 2.32 MB
• Stars: 5,145
• Watchers: 362
• Forks: 959
• Open Issues: 165
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Google Authenticator OpenSource

The Google Authenticator project includes implementations of one-time passcode

generators for several mobile platforms. One-time passcodes are generated using

open standards developed by the

[Initiative for Open Authentication (OATH)](http://www.openauthentication.org/)

(which is unrelated to [OAuth](http://oauth.net/)).

This GitHub project is specifically for the Google Authenticator apps which

target the Blackberry and iOS mobile platforms.

Other related Google Authenticator opensource projects can be found as noted

below:

- [Android app](https://github.com/google/google-authenticator-android).

- [Pluggable Authentication Module](https://github.com/google/google-authenticator-libpam), aka PAM.

There are **no account backups** in any of the apps by design.

These apps are not on the app stores, and their code has diverged from what's in

the app stores, so patches here won't necessarily show up in those versions.

These implementations support the HMAC-Based One-time Password (HOTP) algorithm

specified in [RFC 4226](https://tools.ietf.org/html/rfc4226) and the Time-based

One-time Password (TOTP) algorithm specified

in [RFC 6238](https://tools.ietf.org/html/rfc6238).

Further documentation is available in

the [Wiki](https://github.com/google/google-authenticator/wiki).