A small library that implements the HOTP and TOTP algorithms for two-factor authentication. Compatible with the Google Authenticator app for iPhone and Android.
Google Authenticator expects keys to be presented in base32. This is reasonable to support in this library because Google Authenticator is the primary focus, and other authenticators are likely to follow Google's lead as well.
Google Authenticator expects keys to be presented in base32. This is reasonable to support in this library because Google Authenticator is the primary focus, and other authenticators are likely to follow Google's lead as well.