Key provisioning via scanning a QR code.The code for Android has been moved to a separate GitHub project. This project currently offers mobile application implementations of HOTP/TOTP for Android, iOS, and Blackberry, as well as a PAM module. These implementations support the HMAC-Based One-time Password (HOTP) algorithm specified in RFC 4226 and the Time-based One-time Password (TOTP) algorithm specified in RFC 6238.
One-time passcodes are generated using open standards developed by the Initiative for Open Authentication (OATH) (which is unrelated to OAuth). The Google Authenticator project includes implementations of one-time passcode generators for several mobile platforms, as well as a pluggable authentication module (PAM).
