package smsrpc

import (
	"crypto/md5"
	"encoding/hex"
	"strings"
)

/**
 * 签名
 */
func Sign(data string, salt string) string {

	var build strings.Builder

	build.WriteString(data)
	build.WriteString(salt)
	build.WriteString("smsd$8gnlier")

	data_str := build.String()

	h := md5.New()
	h.Write([]byte(data_str))             // 需要加密的字符串
	return hex.EncodeToString(h.Sum(nil)) // 输出加密结果

}

/**
 * 验证签名
 */
func CheckSign(sign_str, data, salt string) bool {
	sign := Sign(data, salt)
	if strings.Compare(sign_str, sign) > -1 {
		return true
	}
	return false
}