CreateTotpRecovery generates and returns num TOTP recovery code strings.

CreateTotpSecret generates a new time-based one-time password (compatible with google-authenticator) for the given user with the following properties: validity period: 30 seconds secret size: 20 bytes algorithm: HMAC-SHA1.

DecryptTotpRecoveryCodes decrypts a given array defined with encrypted recovery codes.

super mega secret obfuscation ;-).

VerifyTotp checks whether the provided totpCode is a valid TOTP.

VerifyTotpRecoveryCode checks whether a provided TOTP recovery code in a list of codes If there is a match the respective recovery code is returned.