package main

import (
    "crypto/hmac"
    "crypto/sha1"
    "encoding/hex"
    "fmt"
)

func HmacSHA1(key string, data string) string {
    mac := hmac.New(sha1.New, []byte(key))
    mac.Write([]byte(data))
    return hex.EncodeToString(mac.Sum(nil))
}

func main() {
    data := HmacSHA1("123", "7848871513115BC19322112B3")
    fmt.Printf("%v", data)
}