README.txt

Part of this program comes from PAM module from google authenticator
These parts are under Apache 2.0 Licence. It may have been modified by myself

Source code can be found here https://github.com/google/google-authenticator/tree/master/libpam

Apache 2.0 licence is available at http://www.apache.org/licenses/LICENSE-2.0

Rest of the code is under WTFPL license. See LICENSE.txt for more information
Source of this is at https://github.com/mioux/navspark-googleauth

This is Ansi C with terminal version, not Arduino/Navspark version.

Run this to compile Linux program :
gcc -g -Wall -std=c99 *.c -o main

Run this to compile Windows program :
windres main.rs -O coff -o main.res
gcc -g -Wall -std=c99 *.c *.res -o main.exe

Test : ./main JBSWY3DPEHPK3PXP
Should be the same code as http://blog.tinisles.com/2011/10/google-authenticator-one-time-password-algorithm-in-javascript/