otp

type AuthURL struct {
	Type      string
	Label     string
	Secret    string
	Issuer    string
	Algorithm string
	Counter   int
	Digits    int
	Period    int
}

type Counter interface {
	Count() int64
}

type HOTP struct {
	// contains filtered or unexported fields
}

type OTP interface {
	Counter() Counter
	Hash() crypto.Hash
	GenerateCode(key string, count int64, tokenLen int) (string, error)
	VerifyCode(code, key string, skew, tokenLen int) bool
}

type TimeCounter struct {
	Interval, Step int
}