4 GA4PHP means Google Authenticator for PHP.
6 The purpose of this "library" is to provde a convienient and
7 hopefully simple way of provisioning and authenticating users
8 using the Google Authenticator mechanism. For now this lib
9 will only support GA's hotp methods.
15 Mostly cause I can. Recently i've been heavily interesting in
16 what is "out there" for FOSS based authentication projects and
17 the Google Authenticator is based on OATH - HOTP/TOTP. It also
18 has a few kewl features, like providing its secret key via QR
19 codes. But looking at the App's available for smartphones
20 (android, iphone, etc), the google auth app was the only one
21 that fullfilled some realistic criteria - easy to use, easy to
27 See the examples and the wiki over at the project page,
28 http://code.google.com/p/ga4php/