Cordova plugin for OTP depends on BarcodeScanner to be able to easly obtain the secret

cordova create <project-name>
cd <project-name>
cordova platform add android
cordova plugin add <location-of-this-plugin>
cordova build

Copy example/* into the www folder of your project and press the OTP button. Initially it will fire up the BarcodeScanner to scan a QR code with an url like otpauth://totp/username?secret=7SPQJZ7CDF7NTKJ2 this secret will be stored and then later used to generate One Time Passwords have a look at the guide

Try it on this demo page username is john and password 123

var totp = new AeroGear.Totp();
totp.generate(function(result) { /* result is the otp */ );

or seperate methods

 String secret = "B2374TNIQ3HKC446";
 // initialize OTP
 var generator = new AeroGear.Totp(secret);
 // generate token
 generator.generateOTP(function(result) { /* result is the otp */ });

For more details about the current release, please consult our documentation.

If you would like to help develop AeroGear you can join our developer's mailing list, join #aerogear on Freenode, or shout at us on Twitter @aerogears.

Also takes some time and skim the contributor guide

Join our user mailing list for any questions or help! We really hope you enjoy app development with AeroGear!

If you found a bug please create a ticket for us on Jira with some steps to reproduce it.