Transaction Modification

<?php
  $cancel_target_data = "T0000^22284971100001^STSC";
  echo "cancel_target_data : ".$cancel_target_data."<br><br>";

  $inquery_target_data = "T0000^22284971100001^PACA";
  echo "inquery_target_data : ".$inquery_target_data."<br><br>";

  $key_data = file_get_contents('../splPrikeyPKCS8.pem');

  $pri_key = openssl_pkey_get_private($key_data,'changeit');

  openssl_sign($cancel_target_data, $signature, $pri_key, 'sha256WithRSAEncryption');
  echo "cancel_signature :".base64_encode($signature)."<br><br>";

  openssl_sign($inquery_target_data, $signature, $pri_key, 'sha256WithRSAEncryption');
  echo "inquery_signature :".base64_encode($signature)."<br><br>";
?>

namespace kcp_sign_data_sample
{
  class Program
  {
      static void Main(string[] args)
      {
          // PKCS#8 PEM READ
          StreamReader sr = new StreamReader("../splPrikeyPKCS8.pem");
          String privateKeyText = sr.ReadToEnd();

          string privateKeyPass = "changeit";

          StringReader stringReader = new StringReader(privateKeyText);
          PemReader pemReader = new PemReader(stringReader, new PasswordFinder(privateKeyPass));
          RsaPrivateCrtKeyParameters keyParams = (RsaPrivateCrtKeyParameters)pemReader.ReadObject();

          var textToSign = "T0000^22671971380028^PACA";

          byte[] tmpSource = Encoding.ASCII.GetBytes(textToSign);

          ISigner sign = SignerUtilities.GetSigner(PkcsObjectIdentifiers.Sha256WithRsaEncryption.Id);
          sign.Init(true, keyParams);
          sign.BlockUpdate(tmpSource, 0, tmpSource.Length);

          var kcp_sign_data = sign.GenerateSignature();

          // Console
          Console.WriteLine("kcp_sign_data:" + Convert.ToBase64String(kcp_sign_data));
          Console.ReadKey();
      }

      private class PasswordFinder : IPasswordFinder
      {
          private string password;
          public PasswordFinder(string pwd)
          {
          password = pwd;
          }
           public char[] GetPassword()
          {
          return password.ToCharArray();
          }
      }
  }
}

<%
KeyPath = "../splPrikeyPKCS8.pem"
KeyPw	= "changeit"

textToSign = "T0000^22671971380028^PACA"
set kcpSign = server.createobject("kcp_sign_data_lib.GenSign")
kcp_sign_data = kcpSign.Sign(KeyPath, KeyPw, textToSign)

response.write "original: " + textToSign + "<br/>"
response.write "kcp_sign_data : " + kcp_sign_data + "<br/>"
%>

// Inquery
const data = "T0000^22296971511092^PACA";
console.log('\n>>> Message:\n\n' + data);


// crypto Set
const crypto = require('crypto');
const fs = require('fs');
const ALGORITHM = "RSA-SHA256";
const SIGNATURE_FORMAT = "base64";

const signature = getSignatureToVerify(data);

// READ
function getPrivateKeySomehow()
{
    const pKey = fs.readFileSync('../splPrikeyPKCS8.pem', 'utf8' ); // "splPrikeyPKCS8.pem"

    const pKeyObj = crypto.createPrivateKey({
        key : pKey,
        passphrase : "changeit", // "changeit"
        format : "pem",
        type : "pkcs8"
        })

    const pKeyStr = pKeyObj.export({
         format: 'pem',
          type: 'pkcs8'
        }).toString();

    return pKeyStr;
}

function getSignatureToVerify(data)
{
    const privateKey = getPrivateKeySomehow();
    const sign = crypto.createSign(ALGORITHM);
    sign.update(data);
    const signature = sign.sign(privateKey, SIGNATURE_FORMAT);
    console.log(">>> Signature:\n\n" + signature);
    return signature;
}

import OpenSSL
from OpenSSL import crypto
import base64
data = 'T0000^22671971380028^PACA'

# READ
# "splPrikeyPKCS8.pem"
key_file = open('../splPrikeyPKCS8.pem', 'r')
key = key_file.read()
key_file.close()

# "changeit"
password = 'changeit'.encode('utf-8')
pkey = crypto.load_privatekey(crypto.FILETYPE_PEM, key, password)

sign = OpenSSL.crypto.sign(pkey, data, 'sha256')
kcp_sign_data = base64.b64encode(sign)
print("kcp_sign_data : ", kcp_sign_data)

$target_URL = "https://stg-spl.kcp.co.kr/gw/mod/v1/cancel"; //dev

$data = [
    'site_cd'        => $site_cd,
    'kcp_cert_info'  => $kcp_cert_info,
    'kcp_sign_data'  => $kcp_sign_data,
    'tno'            => $tno,
    'mod_type'       => 'STSC',
    'mod_desc'       => 'cancel',
];

$req_data = json_encode($data);

$header_data = array( "Content-Type: application/json", "charset=utf-8" );

// API REQ
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $target_URL);
curl_setopt($ch, CURLOPT_HTTPHEADER, $header_data);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_POSTFIELDS, $req_data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

// API RES
$res_data  = curl_exec($ch);

// RES JSON DATA Parsing
$json_res = json_decode($res_data, true);

$res_cd = $json_res["res_cd"];
$res_msg = $json_res["res_msg"];

  curl_close($ch);

target_URL = "https://stg-spl.kcp.co.kr/gw/mod/v1/cancel"; //dev

req_data = "{\"site_cd\" : \"" + site_cd + "\"," +
                      "\"kcp_cert_info\":\"" + KCP_CERT_INFO + "\"," +
                      "\"kcp_sign_data\":\"" + kcp_sign_data + "\"," +
                      "\"tno\":\"" + tno + "\"," +
                      "\"mod_type\":\"STSC\"," +
                      "\"mod_desc\":\"cancel\"}";

// API REQ
req = (HttpWebRequest)WebRequest.Create(target_URL);
req.Method = "POST";
req.ContentType = "application/json";

byte_req = Encoding.UTF8.GetBytes(req_data);
req.ContentLength = byte_req.Length;

st = req.GetRequestStream();
st.Write(byte_req, 0, byte_req.Length);
st.Close();

// API RES
res = (HttpWebResponse)req.GetResponse();
st_read = new StreamReader(res.GetResponseStream(), Encoding.GetEncoding("utf-8"));
res_data = st_read.ReadToEnd();

st_read.Close();
res.Close();

// RES JSON DATA Parsing
json_data = JObject.Parse(res_data);
res_cd = json_data["res_cd"].ToString();
res_msg = json_data["res_msg"].ToString();
            

' request API
target_URL = "https://stg-spl.kcp.co.kr/gw/mod/v1/cancel" ' dev

req_data = "{""site_cd"":""" & site_cd & """,""kcp_cert_info"":""" & kcp_cert_info & """,""kcp_sign_data"":""" & kcp_sign_data & """,""tno"":""" & tno & """,""mod_type"":""STSC"",""mod_desc"":""cancel""}"

' API REQ
set cancel_req = Server.CreateObject("MSXML2.ServerXMLHTTP")
cancel_req.open "POST", target_URL, false
cancel_req.setRequestHeader "Content-Type", "application/json;charset=UTF-8"
cancel_req.send req_data

' API RES
if cancel_req.status = 200 then
    res_data = cancel_req.ResponseText
else
    res_data = "http error code : " & cancel_req.status
end if

set cancel_req = nothing

'' RES JSON DATA Parsing
set json_cancel_data = JSON.parse(res_data)

res_cd = json_cancel_data.res_cd
res_msg = json_cancel_data.res_msg

req_data = {
    site_cd : site_cd,
    tno : tno,
    kcp_cert_info : KCP_CERT_INFO,
    kcp_sign_data : kcp_sign_data,
    mod_type : mod_type,
    mod_desc : ''
  };
  // API URL
  fetch("https://stg-spl.kcp.co.kr/gw/mod/v1/cancel", {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
    },
    body: JSON.stringify(req_data),
  })
  // API RES
  .then(response => {
    return response.json();
  })
  // RES JSON DATA Parsing
  .then(data => {
    res.render('kcp_api_pay', {
      req_data : JSON.stringify(req_data),
      res_data : JSON.stringify(data),
    });
  })

# API
target_URL = 'https://stg-spl.kcp.co.kr/gw/mod/v1/cancel' # dev
tno = res_data['tno']
mod_type = 'STSC' #

req_data = {
  'site_cd' : site_cd,
  'tno' : tno,
  'kcp_cert_info' : KCP_CERT_INFO,
  'kcp_sign_data' : kcp_sign_data,
  'mod_type' : mod_type,
  'mod_desc' : 'cancel'
}
res = requests.post(target_URL, headers=headers, data=json.dumps(req_data, ensure_ascii=False, indent="\t").encode('utf8'))