OTP

OTP is an acronym for One Time Password. It is a standard way to calculate passwords based on a shared secret key. There are 2 types of OTP: TOTP and HOTP.

CrossmarX uses TOTP: Time-based One Time Password, to generate tokens that are used in 2-factor authentication during login into an application. Activating OTP in your account generates a shared secret key and a barcode containing the key. With an OTP app you can scan this barcode or manually enter the shared secret. The app will generate a token based on the TOTP algorithm every 30 seconds.

More information on OTP:

https://en.wikipedia.org/wiki/Time-based_One-time_Password_Algorithm

https://en.wikipedia.org/wiki/Google_Authenticator#cite_note-36

Apps for TOTP:

For IOS:

• https://itunes.apple.com/us/app/freeotp-authenticator/id872559395?mt=8 (Free OTP)
  
  
• https://itunes.apple.com/us/app/otp-auth/id659877384?mt=8

For Android:

• https://play.google.com/store/apps/details?id=org.fedorahosted.freeotp (Free OTP)
  
  
• https://play.google.com/store/apps/details?id=com.google.android.apps.authenticator2

Free OTP is open source software that is being maintained by Red Hat