secure_code = MD5(<HPayKey>)

secureChain = sign(<HPayKey>) in SHA256withRSA 2048

curl --header "Content-Type: application/x-www-form-urlencoded" \
     --request POST \
     --data '{"merchant_id":"12345","order_code":"xyz", "checksum":"1424"}' \
     https://checkout-sandbox.hpay.com.vn/api/transaction

{
    "error_code": "00",
    "data": {
        "token": "12353",
        "transaction_status": "00",
        "receiver_email": "abc@gmail.com",
        "order_code": "xyz",
        "total_amount": "1000",
        "bank_code": "123",
        "order_description": "Thanhtoan",
        "tax_amount": 0,
        "discount_amount": 0,
        "fee_shipping": 0,
        "return_url": "https://abc.com/",
        "cancel_url": "https://abc.com/",
        "buyer_fullname": "Nguyen Van A",
        "buyer_email": "abc@gmail.com",
        "buyer_mobile": "0123456789",
        "buyer_address": "HN",
        "affiliate_code": "0",
        "transaction_id": "1234"
    },
    "checksum": "123"
}

https://checkout.hpay.com.vn/revoke_token.php?merchant_site_code=123&receive_email="example@gmail.com"&bank_code="ABB"&bank_token="9704005990670018"&return_url="yourwebsite.com/callback"&secure_code="3ab87d52bee1bcde4150c5aa353644f9"&notify_url="yourwebsite.com/callback"

https://yourwebsite.com/callback_revoke_token?merchant_id=123&receive ="example@gmail.com"&bank_code="ABB"&bank_token="9704005990670018’"&secure_code="3ab87d52bee1bcde4150c5aa353644f9"&error_text=$errText&status=00&revoke_token_status=true

curl --header "Content-Type: application/json" \
     --request POST \
     --data '{"requestId":"12345","merchantId":"1234", "requestTime":"2022-09-22", "signature": <signBase64>}' \
     https://account-sandbox.hpay.com.vn/api/user/GetBalance

{
    "data": {
        "balance": "101,747,939",
        "signature":<signBase64> ,
        "respone_time": 1664182633
    },
    "requestId": "7C370C60A3C04DDC9B5F24368D31F343",
    "error_code": 0,
    "client_ip": "10.0.9.1"
}

{
    "requestId": "176EECA9AE72120EB50F9E03FCF4F189",
    "error_code": 215303,
    "client_ip": "123.24.142.154",
    "message": "Website tích hợp thanh toán không tồn tại"
}

curl --header "Content-Type: application/x-www-form-urlencoded" \
     --request POST \
     --data '{"merchantId":"xyz","accountVaType":"xyz",
              "accountVaName":"xyz","amount":"xyz", "timeLimit":"xyz",
              "condition":"xyz","secure_code":"xyz"}' \
     https://account-sandbox.hpay.com.vn/api/va/create

{
    "error_code": "0",
    "data": {
        "merchant_id": "123456",
        "merchant_email": "abc@gmail.com",
        "va_account": "1000000000178",
        "va_name": "NGUYEN VAN A",
        "va_type": "1",
        "va_condition": "1",
        "va_bank": "BIDV",
        "va_status": "3",
        "va_amount": "100000",
        "remark": "thu DH 001",
        "va_timelimit": "1669262917",
        "qrCommonURL": "https://img.vietqr.io/image/BIDV-1234569900000102382-qJs3YTm.jpg?amount=1000&addInfo=Thanh toan tai khoan VA&accountName=CK",
        "qrDataURL": "https://img.vietqr.io/image/BIDV-12345649900000102382-BS6Pk3k.jpg?amount=1000&addInfo=Thanh toan tai khoan VA&accountName=CK",
        "qrImage": "https://openapi-sandbox.htpgroup.com.vn/service/vietqr/v1/generate?accountNo=123456990000001&accountName=CK&bankCode=BIDV&amount=1000&addInfo=Thanh+toan+tai+khoan+VA"
    },
    "checksum": "22810dca6a677396585b7af8a528b839"
}

REQUEST

{
    "merchant_id": "63575",
    "va_account": "9631241000000713987",
    "va_name": "NGUYEN VAN API TESSTADDA",
    "remark": ""
    "secure_code": "849247cb8b41eb1d80f338c25b1f505b"
}


RESPONSE

{
    "error_code": "00",
    "message": "Update account virtual account name successful",
    "data": {
        "merchant_id": "63575",
        "va_account": "9631241000000713987",
        "va_name": "NGUYEN VAN API TESSTADDA"
    }
}

EX: Response
- Case1: success
{
    "error_code": "00",
    "data": {
        "merchant_id": "65457",
        "account_va": "OMI9001122",
        "va_status": "3"
    },
    "checksum": "462f36a313f6999736633e7f08d07055"
}

- Case2: has error
{
    "error_code": "041",
    "data": [],
    "checksum": ""
}

    {
        "merchant_id": "66295",
        "va_account": "9631249900000102836",
        "secure_code": "e681f2b2f967deb88a619e941c5db3f7"
    }

{
    "error_code": "00",
    "message": "success",
    "data": [
        {
            "transaction_id": 96119097,
            "full_account_number": "9631249900000102836",
            "amount": 100000,
            "time_paid": 1728702771,
            "cashin": 28299429,
            "remark": "bm8gY29udGVudA==",
            "va_bank_name": "BIDV",
        },
        {
            "transaction_id": 96119100,
            "full_account_number": "9631249900000102836",
            "amount": 100000,
            "time_paid": 1728702771,
            "cashin": 28299430,
            "remark": "bm8gY29udGVudA==",
            "va_bank_name": "BIDV",
        }

    ],
    "secure_code": "bca27cabbc5055a45cf30da3457ea021"
}

    {
        "requestId": "00001",
        "merchantId": "12345",
        "merchantEmail": "abc@abc.com",
        "bankName":"BIDV",
        "bankAccountNumber": "1234567890912312",
        "bankAccountName": "NGUYEN VAN A",
        "amount": "1000000",
        "note": "chuyen tien iBFT",
        "timeTranfer": "07/06/2022",
        "secureChain": "355f0f51956102a39d05a496546f9fb2xxxxx"
    }

{
        "error_code": "000",
        "status": "Giao dịch thành công",
        "data": {
            "requestId": "00001",
            "bankAccountNumber": "1234567890912312",
            "omiCashoutId": "231423",
            "omiTransactionId": "96061677",
            "secureChain": "865266941b737de8b8f88074db27a1f0xxxxxx"
            }
    }

# openssl req -newkey rsa:2048 -new -nodes -x509 -days 3650 -keyout merchantIbftKey.pem -out merchantIbftCert.pem

# openssl rsa -in merchantIbftKey.pem -pubout -out merchantIbftPublic.pem

# openssl x509 -outform der -in merchantIbftCert.pem -out merchantIbftCert.crt

# openssl x509 -inform PEM -in merchantIbftCert.pem -outform DER -out merchantIbftCert.cer

curl --request GET \
     https://account-sandbox.hpay.com.vn/api/ibft/CheckUserBank?merchant_id=1234&bank_name=BIDV&bank_account_number=9704180000042134197&secure_code=123xxx567

{
    "error_code": "000",
    "data": {
        "request_id": "20220912052918",
        "merchant_id": "1234",
        "bank_account_number": "9704180000042134197",
        "bank_name": "BIDV",
        "bank_account_name": "NGUYEN THI B"
    },
    "checksum": "c2b845845xxxxxxxxxx370ebe3f31d"
}

curl --request GET \
     https://account-sandbox.hpay.com.vn/api/ibft/inquiry?secureChain=8607bdba84e96f0c2ff9926e2a975ffb&merchantId=12345&requestId=1666062845347

OR with transactionId

curl --request GET \
https://account-sandbox.hpay.com.vn/api/ibft/inquiry?requestId=1666062845347&merchantId=12345&transactionId=123456&secureChain=8607bdba84e96f0c2ff9926e2a975ffb

For one transactionId matched one your requestId

{ 
    "data": { 
        "time_tranfer": 1661834533, 
        "note": "chuyen tien iBFT", 
        "amount": 1000000, 
        "transaction_status": 4, 
        "cashout_status": 3, 
        "refund_status": 3, 
        "bankAccount_name": "TEST", 
        "merchant_id": "12345", 
        "request_id": "1666062845347", 
        "bankAccount_number": "12010004002695" 
    }, 
    "secure_chain": "bac7f6b16079a0ffc3984c35535c78aa", 
    "error_code": "000" 
}


For multiple transactionID matched your requestId

{
    "data": [
        {
            "time_tranfer": "1689842444",
            "transaction_id": "123456",
            "note": "chuyen tien iBFT luc 1689842444",
            "amount": "20000",
            "transaction_status": "4",
            "cashout_status": "3",
            "refund_status": "",
            "bankAccount_name": "TEST",
            "merchant_id": "12345",
            "request_id": "1666062845347",
            "bankAccount_number": "12010004003096"
        },
        {
            "time_tranfer": "1689843127",
            "transaction_id": "654321",
            "note": "chuyen tien iBFT luc 1689843127",
            "amount": "20000",
            "transaction_status": "4",
            "cashout_status": "3",
            "refund_status": "",
            "bankAccount_name": "TEST",
            "merchant_id": "12345",
            "request_id": "1666062845347",
            "bankAccount_number": "12010004003096"
        }
    ],
    "secure_chain": "867ead7b9e85526f36a50d0ef67fce8e",
    "error_code": "000"
}

$ flutter pub add flutter_hpay_sdk


import 'package:flutter_hpay_sdk/flutter_hpay_sdk.dart';

import 'package:flutter/material.dart';
import 'package:flutter_hpay_sdk/flutter_hpay_sdk.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatefulWidget {
  const MyApp({super.key});

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  @override
  void initState() {
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
          appBar: AppBar(
            title: const Text('HPay Payment Gateway'),
          ),
          body: Column(
            children: const [
              Expanded(
                  child: GatewaySdk(
                orderCode: 'OM_123456', //do merchant quy dinh, phai la duy nhat
                price: '50000',
                paymentMethodId: 1095,
                notifyUrl:
                    'http://10.0.9.18:8090/test_checkout/checkout_v1/success.php', //your notify url
                merchantId: '64875', //your merchant id
                merchantPass: '09217d13ecfa568', //your merchant password
                receiverEmail: 'trungnv@htpgroup.com.vn', //email người nhận
                env: 0, //1 môi trường production, 0 là môi trường sandbox
              )),
            ],
          )),
    );
  }
}

https://checkout-sandbox.hpay.com.vn/v1/checkout_hosted.php?merchant_site_code=65457&receiver=xuannt%40htpgroup.com.vn&price=20000&currency=vnd&order_code=OM_1684204332&return_url=hhttps://hpay.com.vn/success.php&transaction_info=tichhopthanhtoan&order_description=Thanh toan don hang OM_1684204332&payment_method_id=1095&secure_code=74e1cb578195adc7b542874a52c5e3e8&lang=en&sub_order=&is_mobile=1&time_limit=&notify_url=https://hpay.com.vn/callback.php

import React from 'react';
import { WebView } from 'react-native-webview';
import md5 from 'md5';
import utf8 from 'utf8'

const MERCHANT_ID = "65457"
const MERCHANT_EMAIL = 'demo@hpay.com.vn';
const MERCHANT_PASS = 'e6f555ad5263b9ec0f753282b4297xxc';
const WebViewExample = () => {
    // parameter
    var random = Math.floor(Math.random() * 100) + 1;
    var order_code = 'OM_' + random;
    var transaction_info = 'tichhopthanhtoan';
    var price = '50000';
    var currency = 'vnd';
    var order_description = 'Thanh toan hoa don ' + order_code;
    var lang = 'vi';
    var is_mobile = '1';
    var return_url = 'http://demo.hpay.com.vn/success.php';
    var notify_url = 'http://demo.hpay.com.vn/callback.php';
    var payment_method_id = '1095';

    // create secure_code ` secure_code = MD5( merchant_site_code + '|' + receiver + '|' + price + '|' + currency + '|' + order_code + '|' + secure_pass)`
    var str_secure_code = MERCHANT_ID + '|' + MERCHANT_EMAIL + '|' + price + '|' + currency + '|' + order_code + '|' + MERCHANT_PASS;
    var secure_code = md5(utf8.encode(str_secure_code));

    const data = {
        "merchant_site_code": MERCHANT_ID,
        "return_url": return_url,
        "receiver": MERCHANT_EMAIL,
        "transaction_info": transaction_info,
        "order_code": order_code,
        "price": price,
        "currency": currency,
        "order_description": order_description,
        "lang": lang,
        "secure_code": secure_code,
        "is_mobile": is_mobile,
        "notify_url": notify_url,
        "payment_method_id": payment_method_id,
        "sub_order": '',
        "time_limit": '',
    };

    const query_params = Object.entries(data).map(([k, v]) => `${k}=${v}`);
    const base_url = 'https://checkout-sandbox.hpay.com.vn/v1/checkout_hosted.php?';
    var url = base_url.concat(query_params.join('&'));

    return (
        <WebView
            source={{ uri: url }}
        />
    );
};

export default WebViewExample;

curl --location 'https://opensnow-sandbox.htpgroup.com.vn/oauth/token' \
--form 'client_secret="xxxxxxxxxxxxxxxxxxxx"' \
--form 'client_id="xxxxxxxxxxxxxxxxxxxx"' \
--form 'grant_type="client_credentials"'

{
    "access_token": "eyJhbGciOiJSUzI1NiIsInR5cCIgOiAiSldUIiwia2lkIiA6ICI4X0tvdUZ3cHh0OEpPbUMxNmluRG96eHNnMFkwMFJ3V3lRVEw3TUllamRzIn0.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.HSKmc_xa5dt_l5UlmAQw3tCfDz7nLSYofQRywRzvO1QT7Dm_lRZDlD6OD_cMbEYcoZ1D_fWr4jWH4M15BUTXphnfNz2DOKh5eTzDuDoXAyJDWb0-CfNK_Xh3TIvDHEoGWqniU6nkcQgkbBFxivGgo_D9Jlmd0KMcVb8USEx6NU0Pj7O8y1nZ6wXmLchnNOIqVfcp9r0m9EoMDB0_mcrAztc0ekB4VQ5GId0Yyugo7kUJWEdpOt_mLXHhXImrI-8bonL6ujFto051SHX5zcP4dC3qekldsAjgkxsccBuc_7tKjvEOYe1Rha52mIS6hyWQ142z_suF57YNYxsCmZhSHw",
    "expires_in": 300,
    "refresh_expires_in": 0,
    "token_type": "Bearer",
    "not-before-policy": 0,
    "scope": "email profile"
}

curl --location 'https://opensnow-sandbox.htpgroup.com.vn/api/payment-hub/services/list_service'

{
    "service": [
        {
            "groupId": 11,
            "code": "TOPUP",
            "name": "Nạp tiền điện thoại",
            "groupService": [
                {
                    "serviceId": 34,
                    "name": "Topup Viettel",
                    "status": 1,
                    "code": "VIETTEL",
                    "description": "Active"
                }
            ]
        },
        {
            "groupId": 9,
            "code": "INTERNET",
            "name": "Internet",
            "groupService": [
                {
                    "serviceId": 49,
                    "name": "SST",
                    "status": 1,
                    "code": "INTERNET_SST",
                    "description": "Active"
                },
                {
                    "serviceId": 50,
                    "name": "SPT",
                    "status": 1,
                    "code": "INTERNET_SPT",
                    "description": "Active"
                }
            ]
        },
        {
            "groupId": 2,
            "code": "ELECTRIC",
            "name": "Điện",
            "groupService": [
                {
                    "serviceId": 12,
                    "name": "Hóa đơn điện EVN",
                    "status": 1,
                    "code": "ELECTRIC_EVN",
                    "description": "Active"
                },
                {
                    "serviceId": 48,
                    "name": "Điện hà nội",
                    "status": 1,
                    "code": "D1234567",
                    "description": "Active"
                }
            ]
        },
        {
            "groupId": 3,
            "code": "WATER",
            "name": "Nước",
            "groupService": [
                {
                    "serviceId": 13,
                    "name": "Nước Đồng Nai",
                    "status": 1,
                    "code": "WATER_48",
                    "description": "Active"
                }
            ]
        },
        {
            "groupId": 1,
            "code": "POSTPAID",
            "name": "Thanh toán hóa đơn trả sau",
            "groupService": [
                {
                    "serviceId": 9,
                    "name": "Hóa đơn trả sau Mobifone",
                    "status": 1,
                    "code": "POSTPAID_MOBI",
                    "description": "Active"
                }
            ]
        },
        {
            "groupId": 4,
            "code": "FINANCE",
            "name": "Tài chình",
            "groupService": [
                {
                    "serviceId": 17,
                    "name": "Hóa đơn FE Credit",
                    "status": 1,
                    "code": "FECREDIT",
                    "description": "Active"
                }
            ]
        },
        {
            "groupId": 5,
            "code": "TELEVISION",
            "name": "Truyền hình",
            "groupService": [
                {
                    "serviceId": 19,
                    "name": "MobiTV",
                    "status": 1,
                    "code": "MOBITV",
                    "description": "Active"
                }
            ]
        },
        {
            "groupId": 6,
            "code": "INSURANCE",
            "name": "Bảo hiểm",
            "groupService": [
                {
                    "serviceId": 21,
                    "name": "Thanh toán phí bảo hiểm Prudential",
                    "status": 1,
                    "code": "INSURAN_PRUDENTIAL",
                    "description": "Active"
                }
            ]
        },
        {
            "groupId": 7,
            "code": "IDCARD",
            "name": "Mua mã thẻ",
            "groupService": [                
                {
                    "serviceId": 45,
                    "name": "Thẻ Viettel",
                    "status": 1,
                    "code": "ICARD_VIETTEL",
                    "description": "Active",
                    "serviceDetailsId": [
                        {
                            "serviceDetailsId": 4,
                            "name": "Viettel 50k",
                            "status": 1,
                            "amount": 50000,
                            "description": "Active"
                        }
                    ]
                },
                {
                    "serviceId": 46,
                    "name": "Thẻ Mobifone",
                    "status": 1,
                    "code": "ICARD_MOBI",
                    "description": "Active"
                },
                {
                    "serviceId": 51,
                    "name": "Thẻ Viettel Data",
                    "status": 1,
                    "code": "IDCARD_VIETTEL_DATA",
                    "description": "Active",
                    "serviceDetailsId": [
                        {
                            "serviceDetailsId": 27,
                            "name": "ST120KDS - 2GB/Ngày",
                            "status": 1,
                            "amount": 120000,
                            "description": "Active"
                        }
                    ]
                }
            ]
        },
        {
            "groupId": 8,
            "code": "TOPUP_DATA",
            "name": "Nạp data điện thoại",
            "groupService": [
                {
                    "serviceId": 39,
                    "name": "Topup Viettel Data",
                    "status": 1,
                    "code": "DATACODE_VIETTEL",
                    "description": "Active",
                    "serviceDetailsId": [
                        {
                            "serviceDetailsId": 11,
                            "name": "500MB3D - 500MB",
                            "status": 1,
                            "amount": 10000,
                            "daysUse": "3",
                            "description": "Active"
                        }
                    ]
                },
                {
                    "serviceId": 40,
                    "name": "Topup MobiFone Data",
                    "status": 1,
                    "code": "DATACODE_MOBI",
                    "description": "Active",
                    "serviceDetailsId": [
                        {
                            "serviceDetailsId": 15,
                            "name": "DC3 - 150 MB",
                            "status": 1,
                            "amount": 3000,
                            "description": "Active"
                        }
                    ]
                },
                {
                    "serviceId": 41,
                    "name": "Topup VinaPhone Data",
                    "status": 1,
                    "code": "DATACODE_VINA",
                    "description": "Active",
                    "serviceDetailsId": [
                        {
                            "serviceDetailsId": 20,
                            "name": "VNP20-1.2GB",
                            "status": 1,
                            "amount": 20000,
                            "description": "Active"
                        }
                    ]
                }
            ]
        }
    ]
}

curl --location 'https://opensnow-sandbox.htpgroup.com.vn/api/payment-hub/services/list_error'

{
    "error": {
        "success": [
            {
                "code": 0,
                "description": "Thành công"
            }
        ],
        "pending": [
            {
                "code": 900,
                "description": "Đang xử lý"
            }
        ],
        "fail": [
            {
                "code": 112,
                "description": "Sai chữ ký"
            },
            {
                "code": 113,
                "description": "Chưa cài đặt dịch vụ"
            },
            {
                "code": 200,
                "description": "Hệ thống xảy ra lỗi, vui lòng thử lại sau"
            }
        ],
        "fail_provider": [
            {
                "code": 300,
                "description": "Hệ thống nhà cung cấp xảy ra lỗi, vui lòng thử lại sau"
            }
        ]
    }
}

{
    "codeFunction":6001,
    "billCode":"PH9023478",
    "serviceId":1,
    "serviceDetailsId":1,
    "username":"SVC",
    "requestId":"Test1",
    "phone":"0983127592",
    "signature":"UNV/rTm+qYjq9Xis0k46LrBqQP2xK69ly75zMPF+ctHz333Hsoe3eorjHJTohv97vPyfv5jsAnzqwpBsifRserWpzlCoipusd8TkCRP1NUSqh91jZeONZ97anly0CBAUOgPUom71GmR8eU0xJE+7fR5yhHNtd2jWdzBZEQWit6Q="
}

{
  "code": 0,
  "desc": "Thành công",
  "requestId": "Test1",
  "data": {
    "billCode": "PH9023478",
    "serviceId": 1,
    "serviceDetailsId": 1,
    "transactionStatus": 0,
    "transactionStatusDesc": "Thành công",
    "totalAmount": 100000,
    "fee": 1234,
    "amountRemaining": 100000,
    "billInfos": [
      {
        "period": "02/2023",
        "amount": 100000
      }
    ]
  },
  "referenceCode": "652742769",
  "signature": "FQY69/YaHZLEei/iQ31zvbXVpKTEOjoUZJcuRP1k98K+2o8oUKg6aaQJhCAwMfBaeVwLxOAvawEb7IuhZM0OtP2/uqNObUXA+WoSycdqU2jfmoFs7WJzeYP2npZ3hKg54vm0HSHiAuiQN1pTRHiX25CABZaPGifpdchUbK0dqNk=",
  "dataRequest": {
    "codeFunction": 6001,
    "billCode": "PH9023478",
    "serviceId": 1,
    "serviceDetailsId": 1,
    "username": "SVC",
    "partnerOrderId": "Test1",
    "phone": "0983127592",
    "signature": "UNV/rTm+qYjq9Xis0k46LrBqQP2xK69ly75zMPF+ctHz333Hsoe3eorjHJTohv97vPyfv5jsAnzqwpBsifRserWpzlCoipusd8TkCRP1NUSqh91jZeONZ97anly0CBAUOgPUom71GmR8eU0xJE+7fR5yhHNtd2jWdzBZEQWit6Q="
  }
}

#Service let customer choose packages they want to use (like televison)

{
  "code": 0,
  "desc": "Thành công",
  "referenceCode": "978b30c6-2d8a-44b7-8fda-b2be45da31d7",
  "internalRequestId": "978b30c6-2d8a-44b7-8fda-b2be45da31d7",
  "packages": [
    {
      "id": "1018262",
      "amount": 2640000,
      "monthsUse": 12,
      "promotions": {
        "value": 3,
        "description": "đóng trước 12 tháng , tặng cước 3 tháng gói cước Net1plus đến Net5plus"
      }
    },
    {
      "id": "1017888",
      "amount": 1320000,
      "monthsUse": 6,
      "promotions": {
        "value": 1,
        "description": "Đóng trước 6 tháng gói cước Net2plus đến Net5plus ,tặng cước 1 tháng"
      }
    }
  ],
  "providerRequestId": "202307211421376nBjXTdBl",
  "requestTelco": "{\"message\":{\"username\":\"hpay_dev\",\"password\":\"a1ec3b73f427c514ab64ce99c891b73f\",\"billing_code\":\"PD100000\",\"service_code\":\"TV_VTC\",\"partner_trans_id\":\"202307211421376nBjXTdBl\",\"contact_id\":\"0374234530\",\"authkey\":\"LdyvmZhFb0eF8ynfwOCycye5EpPnrJVoMSwLV/iep/IIOXZs6lA8bw8VOCOzpa8wQSmXDcMBsWzvEaykUeTeygO0M5zuRsMO+XFikKxEkpk8lo18iZeNhgz3enb44kXJm14lBWxWZEOS9GaK6DtJaaXwzPvf8QJrOiWx7ACnp3mX0p5wcrzcrSWYGp69N9I94Cy7EWYACA0glKeowE2HJ8y9oi/jkeP/VhZumhEk1tbaH6JAd1siNot+NdDmLNEgMYSkwYWieCBiwVvdY1xxGJpmDcgYomUp8mruBJl4scERbv84HxG6mIBf0BiVXjBj82G9fNJC34mN26aK/jZwLg==\"},\"pr_code\":\"1009\"}",
  "responseTelco": "{\"signature\":\"LxSqAKRc6t9oCvhi/OJcdLeQtieG9VWzcbxAqleAEMacYod/DqJfDhbSZFdlSv600rbQNiGf7o8/EymyEj1hMZBiK3JE2HjY1PLNwyXMsb2SayWd6iJwDWL+hmJ/GbPPtiyA6ImtozwuMUqG8GgMP9GkRVFcpwwxym0c/MgsJFM=\",\"status\":\"00\",\"descriptions\":\"Tiếp nhận yêu cầu thành công\",\"data\":{\"reference_code\":\"1689988226234\",\"final_status\":\"00\",\"message\":\"Yeu cau giao dich - Thanh cong\",\"partner_trans_id\":\"202307211421376nBjXTdBl\",\"billing_code\":\"PD100000\",\"service_code\":\"TV_VTC\",\"partial_payment\":false,\"packages\":{\"package_info\":[{\"id_package\":\"1018262\",\"number_of_month\":\"12\",\"amount\":2640000,\"promotion\":{\"value\":3,\"description\":\"đóng trước 12 tháng , tặng cước 3 tháng gói cước Net1plus đến Net5plus\"}},{\"id_package\":\"1017888\",\"number_of_month\":\"6\",\"amount\":1320000,\"promotion\":{\"value\":1,\"description\":\"Đóng trước 6 tháng gói cước Net2plus đến Net5plus ,tặng cước 1 tháng\"}}]}}}"
}

{
    "codeFunction": 6002,
    "billCode": "PH9023478",
    "serviceId": 1,
    "serviceDetailsId": 1,
    "username": "SVC",
    "requestId": "Test1",
    "quantity": 1,
    "referenceCode": "-95299063",
    "phone": "0987264526",
    "amount": 100000,
    "signature":"EEPJwAOWloZu4l/JZS1VEX45URWJUN/actng2aMBcM9JWE/DPE6m7OZ0X5S0PZZaoh/JAWrtIBcoxyCKmCWgXX1l40er9GyKwkJESzTejNfQmRzgSx9v6MOwsOIOX/bqi7Lhqt9OUpcBqb+2W+tVAy9S7z5TNB5Dwl13MetOYcc="
}

{
  "code": 0,
  "desc": "Thành công",
  "requestId": "Test1",
  "data": {
    "billCode": "PH9023478",
    "serviceId": 1,
    "serviceDetailsId": 1,
    "transactionStatus": 0,
    "transactionStatusDesc": "Thành công"
  },
  "referenceCode": "-95299063",
  "signature": "RiDqm8jD6hkRBbMEWFzdYKbbh6qzaVzE0Q/NDlYOt3TCiZUtww60k44hNW9k60zBty+ijEd574bfs8mcThnnZwUm4CAPYu8zt6AV5jt0dGcFmhYrdvTuj6bt0tEB6MbraCVTrfXCSOgKQzAPM5tTVsavjtQzPkQa5XywRCLuSUc=",
  "dataRequest": {
    "codeFunction": 6002,
    "billCode": "PH9023478",
    "serviceId": 1,
    "serviceDetailsId": 1,
    "username": "SVC",
    "partnerOrderId": "Test1",
    "quantity": 1,
    "referenceCode": "-95299063",
    "phone": "0987264526",
    "amount": 100000,
    "signature": "EEPJwAOWloZu4l/JZS1VEX45URWJUN/actng2aMBcM9JWE/DPE6m7OZ0X5S0PZZaoh/JAWrtIBcoxyCKmCWgXX1l40er9GyKwkJESzTejNfQmRzgSx9v6MOwsOIOX/bqi7Lhqt9OUpcBqb+2W+tVAy9S7z5TNB5Dwl13MetOYcc="
  }
}

#Buy Card Service
{
  "code": 0,
  "desc": "Thành công",
  "telcoStatus": "0",
  "telcoDesc": "success",
  "internalRequestId": "44cdf01f-5d82-4d42-af96-34fdb251f9d6",
  "cards": [
    {
      "pin": "88uq2HX5rssryIpp8kxOvx2sDC12gtof",
      "serial": "S372RBRX9W8V76",
      "expiryDate": "2025/06/17 00:00:00"
    }
  ],
  "providerRequestId": "20230721112424YvobRZcrd",
  "requestTelco": "{\"operation\":1000,\"username\":\"IMEDIA_DEV15\",\"merchantPass\":\"5506778434444\",\"requestID\":\"20230721112424YvobRZcrd\",\"token\":\"ff8923f2784c58acbbd4a3a277dda3247b15daa5f8e5ed2d\",\"buyItems\":[{\"productId\":\"1\",\"quantity\":1}],\"keyBirthdayTime\":\"2023/05/29 17:20:24.837\",\"signature\":\"Ve/ngR22hnrtDCjtuLCEQrvvEwBTZqI/fQOVvEvRW+Glo0cfl+pAbpcdGxC50hpnkotaHKX2iCgpugY2zZyN3prsnzBALa4Ynfe38JhBQyUjc95k9GIWGnaMpMrFIHGhuJxymyATwRlEWBjtJ2cGL+9SQjIJ323k2DQhZF7X4fm27Ke7nUWyyfLwmYyC6Q1B7Fue1JmvRCYtT6Nwq7peKav5+nWjRwnmeHsmKw3ga0cmxjVtfMRzER4zJgZrDekkrKGzsgYdB38rQ7+lzGaph8KRtuRu9A6p1/Gl+VKASUdP1vwF1E0cjcV2BR68OVUD5yShslKU2bkyjazzfM8mnA==\"}",
  "responseTelco": "{\"errorCode\":0,\"errorMessage\":\"success\",\"merchantBalance\":1661873400,\"token\":\"ff8923f2784c58acbbd4a3a277dda3247b15daa5f8e5ed2d\",\"accRealType\":null,\"products\":[{\"productId\":1,\"productValue\":10000,\"categoryName\":null,\"serviceProviderName\":null,\"commission\":0.03,\"softpins\":[{\"softpinId\":0,\"softpinSerial\":\"S372RBRX9W8V76\",\"softpinPinCode\":\"csIRy5NMP71rbWtPHA9isrLOlF6JUxPz\",\"expiryDate\":\"2025/06/17 00:00:00\"}]}],\"requestID\":\"20230721112424YvobRZcrd\",\"sysTransId\":448854,\"signature\":\"734ddbf6d97d5681501d4148747bb20c13669b1244c3a595a1c5aae59d49296f5bb97c439b716eed3a61686e8a653292fdbb23ee49ec52e66adcd27a37e26d9e1506cc28b6e0ff71e5a67a6dabef0c21efdcb43a55e78aafedda90ad0f6cbfad08880b3dd5d868796b88573eb9066ceb63a9b2aab77cc89f0241f9fb2c514d47cca07aa67d8a32932ac7e3145cb3e1e451a082d43f0ea1e7ec863aba318f8829c0894113fef207661a450e9a739e7a2d246b468c65674768185b8c7c79495fcb7545bc11941f4a0e70d9efcca83b3a14c596960c0ee423b6659e5921caa1ab7640696a450e7b2dcbf4637628a32dbd36ab881212d2cc713da278c795986d385d\"}"
}

{
    "codeFunction":6003,
    "username":"SVC",
    "transactionsId":"zzzz1",
    "requestId":"123123213",
    "signature":"C1C42fMG9650QEbPAM5HDTxhDmiZ6W7jAmFh8v8GzLBgGAT2UweNKJLFF5My7cHpttoz7U3fQ3cKc1aNQf7Qvi/LcR4VSiMFlXfO0AelFBxkvOeIL0MJKeR0ECf+MUJZefYjt8JA2Gx5EU8GjFhCC1nAkaSOB8VPlnKanBz9H/U="
}

{
  "code": 0,
  "desc": "Thành công",
  "requestId": "zzzz1",
  "data": {
    "transactionStatus": 0,
    "transactionStatusDesc": "Thành công"
  },
  "signature": "GzImS2ufKSo0/UgbgnqicMT2oCcC2rjr2o8itkY4yNHwoDayCxo5u/aI92lYdaUhrGjwHjB0nckzNbgayKuwIMCKkX+h3QrU05TNrhM5b48qVXW8FSCxisXwGvhXJfWcz1gM43v7N+1vros9jm1g0ygJ5p++q8+TNZ6BUFgFznY="
}

{
    "codeFunction":6004,
    "username":"zzzzz",
    "requestId":"asda2131"
}

{
  "code": 0,
  "desc": "Thành công",
  "requestId": "asda2131",
  "balance": 1000000
}

Sign - Java:

public String signSHA256(String message, String nameKey) throws IOException, GeneralSecurityException, URISyntaxException {
    Signature sign = Signature.getInstance("SHA256withRSA");
    // Get PrivateKey
    sign.initSign(getPrivateKey(nameKey));
    sign.update(message.getBytes(StandardCharsets.UTF_8));
    return new String(Base64.encodeBase64(sign.sign()), StandardCharsets.UTF_8);
}


private RSAPrivateKey getPrivateKey(String nameKey) throws IOException, URISyntaxException, GeneralSecurityException {
    String path = pathIMedia + File.separatorChar + nameKey;
    File file = new File(path);
    String privateKeyPEM = "";
    BufferedReader br = new BufferedReader(new FileReader(file));
    String line;
    while ((line = br.readLine()) != null) {
        privateKeyPEM += line + "\n";
    }
    br.close();
    return getPrivateKeyFromString(privateKeyPEM);
}

private RSAPrivateKey getPrivateKey(String nameKey) throws IOException, URISyntaxException, GeneralSecurityException {
    String path = pathIMedia + File.separatorChar + nameKey;
    File file = new File(path);
    String privateKeyPEM = "";
    BufferedReader br = new BufferedReader(new FileReader(file));
    String line;
    while ((line = br.readLine()) != null) {
        privateKeyPEM += line + "\n";
    }
    br.close();
    return getPrivateKeyFromString(privateKeyPEM);
}

Verify - Java:

public boolean verifySHA256(String message, String signature, String pubCert)
        throws SignatureException, NoSuchAlgorithmException, UnsupportedEncodingException, InvalidKeyException,
        FileNotFoundException, CertificateException, URISyntaxException {
    Signature sign = Signature.getInstance("SHA256withRSA");
    String path = publicKey + File.separatorChar + pubCert;
    sign.initVerify(getPublicKeyX509(path));
    sign.update(message.getBytes(StandardCharsets.UTF_8));
    return sign.verify(Base64.decodeBase64(signature.getBytes(StandardCharsets.UTF_8)));
}

private PublicKey getPublicKeyX509(String path) throws FileNotFoundException, CertificateException {
    File file = new File(path);
    FileInputStream fin = new FileInputStream(file);
    CertificateFactory f = CertificateFactory.getInstance("X.509");
    X509Certificate certificate = (X509Certificate) f.generateCertificate(fin);
    PublicKey pubKey = certificate.getPublicKey();
    return pubKey;
}

Encrypt with TripleDes

public String decryptTripleDesWithMD5(String key, String data) throws Exception {
        Cipher cipher = Cipher.getInstance("TripleDES");
        MessageDigest md5 = MessageDigest.getInstance("MD5");
        md5.update(key.getBytes(), 0, key.length());
        String keymd5 = (new BigInteger(1, md5.digest())).toString(16).substring(0, 24);
        SecretKeySpec keyspec = new SecretKeySpec(keymd5.getBytes(), "TripleDES");
        cipher.init(2, keyspec);
        byte[] raw = Base64.getDecoder().decode(data);
        byte[] stringBytes = cipher.doFinal(raw);
        String result = new String(stringBytes);
        return result;
    }