totp

README

Time-based One-Time Password algorithm (TOTP).

Generate secrets, generate codes, and validate codes. Compatible with Google Authenticator.

Installation

This package can be installed with the go get command:

go get github.com/nathanwinther/totp

Usage

package main

import (
  "fmt"
  "github.com/nathanwinther/totp"
)

func main() {
  secret, err := totp.CreateSecret(16)
  if err != nil {
    panic(err)
  }
  fmt.Println(secret)
  code, err := totp.GetCode(secret)
  if err != nil {
    panic(err)
  }
  fmt.Println(code)
  fmt.Println(totp.VerifyCode(secret, code, 2))
}

Documentation

Index

• func CreateSecret(size int) (string, error)
• func GetCode(secret string) (string, error)
• func VerifyCode(secret string, code string, drift int) bool

Functions

func CreateSecret

func CreateSecret(size int) (string, error)

func GetCode

func GetCode(secret string) (string, error)

func VerifyCode

func VerifyCode(secret string, code string, drift int) bool