OTP Generator for N900
One-time password generator for the Nokia N900. Supports OAUTH tokens (HOTP, TOTP) as well as the Mobile-OTP algorithm.
If you wish to rebuild the package from source, then you will need a functioning Maemo 5 SDK. Then, at the root of the project, run the following commands:
$ autoreconf --force --install $ ./configure $ make
As of Aug. 16, 2011, this package is in the extras-devel Maemo repository. It is being promoted to extras-testing. For information on how to activate the 'Extras' repositories on your device refer to http://wiki.maemo.org/Extras.
Once the extras repositories have been enabled, install the 'otp' package, either through the 'App Manager' or by running (as root):
# apt-get install otp
# dpkg -i otp_0.1-1_armel.deb
Google 2-step Authentication Support
Google uses Base32 keys for their 2-step authentication. The OTPN900 maemo program cannot use these directly, but will work fine if the Base32 key is first converted to hexadecimal before being entered into OTPN900. For a detailed tutorial, refer to the discussion here. Many thanks to Yao Wei for his help with this.
- RFC4226 for the HOTP and TOTP standard
- motp.sf.net for a description of the MOTP algorithm