hmac.go

package main

import (
  "crypto/hmac"
  "crypto/sha256"
  "fmt"
)

func CheckMAC(message, messageMAC, key []byte) bool {
	mac := hmac.New(sha256.New, key)
	mac.Write(message)
	expectedMAC := mac.Sum(nil)
	return hmac.Equal(messageMAC, expectedMAC)
}

func main() {
  
}