Sinatra Two Factor Authentication Example

This Sinatra application demonstrates a simple authentication scheme including two-factor authentication (2FA). See https://sideprojectsoftware.com/blog/2018/03/16/sinatra-two-factor-authentication for a full explanation.

Prerequisites

The application depends on the following RubyGems:

• bcrypt
• rotp
• sinatra
• sinatra-flash

Running

To run the application in development use:

ruby app.rb

and access using http://localhost:4567

Alternatively, to run the web application using a Rackup file use:

rackup config.ru (the config.ru may be omitted as Rack looks for this file by default)

and access using http://localhost:9292

Credentials

The credentials for signing in to the app are:

• Username: user
• Password: secret123