totp

totp

This library generates a TOTP for the given key at time t, in the manner commonly used by most websites (SHA1-based 6-digit code padded with 0s). The implementation is based on RFC 4226 and RFC 6238.

There's only one function, which generates the TOTP code for key at time t:

func TOTP(key []byte, t time.Time) string

I mainly wrote this because I wanted to see a bit more in depth how TOTP works. There are much more complete libraries out there.