golang totp

main.go

package main

import (
	"github.com/pquerna/otp"
	"github.com/pquerna/otp/totp"

	"fmt"
	"os"
	"time"
)

func main() {
	key, _ := totp.Generate(totp.GenerateOpts{
		Issuer:      "aaaaa",
		AccountName: "xxx",
		Algorithm: otp.AlgorithmSHA512,
		Digits:    otp.DigitsEight,
		Period: 10,
	})

	fmt.Printf("%+v\n", key)
	ops := totp.ValidateOpts{
		Period:    10,
		Skew: 0,
		Digits:    otp.DigitsEight,
		Algorithm: otp.AlgorithmSHA512,
	}
	passcode, _ := totp.GenerateCodeCustom(key.Secret(), time.Now(), ops)
	fmt.Println(passcode)
	valid, _ := totp.ValidateCustom(passcode, key.Secret(), time.Now(), ops)
	if valid {
		println("Valid passcode!")
		os.Exit(0)
	} else {
		println("Invalid passcode!")
		os.Exit(1)
	}
}