package signature

import (
	"crypto/sha256"
	"encoding/hex"
	"strings"
)

const (
	mixtureBegin string = "v!(MmM"
	mixtureEnd   string = "MmM)i^"
)

func SignaString(s string) string {
	toSign := mixtureBegin + s + mixtureEnd
	sha256 := sha256.New()
	sha256.Write([]byte(toSign))
	signHex := hex.EncodeToString(sha256.Sum(nil))
	return signHex
}

func CheckSignaString(s string, compared string) bool {
	signHex := SignaString(s)
	if strings.Compare(signHex, compared) == 0 {
		return true
	}
	return false
}