github.com/hgfischer/go-otp (go): Package otp implements one-time-password generators used in 2-factor authentication systems like RSA-tokens and Google Authenticator. Currently this supports both HOTP (RFC-4226) and TOTP (RFC-6238).  All tests used in this package, uses reference values from both RFCs to ensure compatibility with another OTP implementations.
Keywords: go|otp|rsa-tokens