Two-Factor Authentication

Specification: https://tools.ietf.org/html/rfc6238

How to run

Pakage

mvn package

Run

java -jar <jar_file> <MODES> [OPTIONS]

###MODES -o: Get valid TOPT.

-g: Generate serect.

###OPTIONS -q: Generate QRCode, can only be used in conjunction with -g mode.

###EXAMPLE:

• Generate shared secret along with QR code

java -jar 2FA-1.0-SNAPSHOT-jar-with-dependencies.jar -g -q

• Get current TOTP of a particular secret

java -jar 2FA-1.0-SNAPSHOT-jar-with-dependencies.jar -o W75TNHWGXQII34GU

##AUTHENTICATOR APPS

Android

• Authy
• Google Authenticator

iOS

• Authy
• Google Authenticator

Window Phone

• Authenticator

BlackBerry

• 2 Steps Authenticator
• Google Authenticator