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One Time Password

Supporting 2 Factor Authentication

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Release Notes

  • OTP
    Bug Fixes
    • Improved reliability saving data

    OTP Pro
    • Optionally require a passcode to access the app
    • Custom URL Scheme to share challenges and responses
    • Verify responses received via custom URL
    • Check clipboard for a response dictionary or hex for verification
  • OTP
    • Support for the larger 4" screen on the iPhone5 and iPod Touch 5th generation
  • OTP
    • iOS6 support
  • OTP Pro
    • Store Pass phrases in the keychain
  • Initial Release
The [One Time Password authentication system] uses a secret pass-phrase to generate a sequence of one-time (single use) passwords. With this system the user's secret pass-phrase never need to cross the network at any time such as during authentication or during pass-phrase change. Thus, it is not vulnerable to replay attacks. Added security is provided by the property that no secret information need be stored on any system, including the server being protected.