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Sample Code (Java)

//Step 1: Generate Secure Hash 
String SECRET_KEY = "Y2FkMTdlOWZiMzJjMzY4ZGFkMzhkMWIz"; // Use Yours, Please Store Your 
Secret Key in safe Place(e.g. database) 
 
// put the parameters in a TreeMap to have the parameters to have them sorted 
alphabetically. 
Map <String,String> parameters = new TreeMap<String,String> (); 
 
String transactionId=String.valueOf(System.currentTimeMillis()); 
 
// fill required parameters 
parameters.put("MessageID", "4"); 
parameters.put("TransactionID", transactionId); 
parameters.put("OriginalTransactionID", "1440954863817"); 
parameters.put("MerchantID", "ANBRedirectM"); 
parameters.put("Amount", "2000"); 
parameters.put("CurrencyISOCode", "840"); 
parameters.put("Version", "1.0"); 
 
//Create an Ordered String of The Parameters Map with Secret Key 
StringBuilder orderedString = new StringBuilder(); 
orderedString.append(SECRET_KEY); 
for (String treeMapKey : parameters.keySet()) { 
    orderedString.append(parameters.get(treeMapKey)); 
} 
 
System.out.println("orderdString "+orderedString); 
// Generate SecureHash with SHA256 
// Using DigestUtils from appache.commons.codes.jar Library 
String secureHash = new String(DigestUtils.sha256Hex(orderedString.toString()).getBytes());

Other Request Code (.Net /PHP)

Sample Code (.Net)

1.            String SECRET_KEY = "Y2FkMTdlOWZiMzJjMzY4ZGFkMzhkMWIz"; // Use Yours, 
Please Store Your Secret Key in safe Place(e.g.database) 
2.          // put the parameters in a SortedDictionary to have the parameters to have 
them sorted alphabetically. 
3.          SortedDictionary<string, string> dictionary = new SortedDictionary<String, S
tring>(StringComparer.Ordinal); 
4.    
5.          long transactionId = (DateTime.Now.Ticks / TimeSpan.TicksPerMillisecond); 
6.          // fill required parameters 
7.          dictionary.Add("MessageID", "4"); 
8.          dictionary.Add("TransactionID", transactionId.ToString()); 
9.          dictionary.Add("OriginalTransactionID", "1440954863817"); 
10.    dictionary.Add("MerchantID", "ANBRedirectM"); 
11.    dictionary.Add("Amount", "2000"); 
12.    dictionary.Add("CurrencyISOCode", "840"); 
13.    dictionary.Add("Version", "1.0"); 
14.    
15.   //Create an Ordered String of The Parameters Dictionary with Secret Key 
16.   StringBuilder stringBuilder = new StringBuilder(); 
17.   stringBuilder.Append(SECRET_KEY); 
18.    
19.   foreach (KeyValuePair<string, string> kv in dictionary) 
20.   { 
21.     stringBuilder.Append(kv.Value); 
22.   } 
23.   Console.WriteLine("ordered string: " + stringBuilder.ToString().ToString()); 
24.   // Generate SecureHash with SHA256 
25.   SHA256 sha256; 
26.   byte[] bytes, hash; 
27.   StringBuilder secureHash; 
28.    
29.   bytes = Encoding.UTF8.GetBytes(stringBuilder.ToString().ToString()); 
30.    
31.   sha256 = SHA256Managed.Create(); 
32.   hash = sha256.ComputeHash(bytes); 
33.   secureHash = new StringBuilder(hash.Length * 2); 
34.    
35.   Console.WriteLine("Secure Hash: " + stringBuilder.ToString().ToString()); 

Sample Code (PHP)

1.        $SECRET_KEY = "Y2FkMTdlOWZiMzJjMzY4ZGFkMzhkMWIz"; // Use Yours, Please Store 
Your Secret Key in safe Place(e.g. database) 
2.        // put the parameters in a array to have the parameters to have them sorted 
alphabetically via ksort. 
3.        $parameters = []; 
4.        $transactionId = (int)(microtime(true)*1000); //time in milleseconds 
5.    
6.        // fill required parameters 
7.        $parameters["MessageID"] = "4"; 
8.        $parameters["TransactionID"] = $transactionId; 
9.        $parameters["OriginalTransactionID"] = "1440954863817"; 
10.  $parameters["MerchantID"] = "ANBRedirectM"; 
11.  $parameters["Amount"] = "2000"; 
12.  $parameters["CurrencyISOCode"] = "840"; 
13.  $parameters["Version"] = "1.0"; 
14.    
15.  //sort parameters alphabatically 
16.  ksort($parameters); 
17.  //Create an Ordered String of The Parameters Map with Secret Key 
18.    
19.  $orderedString = $SECRET_KEY; 
20.  foreach ($parameters as $param) { 
21.          $orderedString .= $param; 
22.  } 
23.  echo "orderdString ". $orderedString; 
24.    
25.  // Generate SecureHash with SHA256 
26.  $secureHash = hash('sha256', $orderedString, false); 
27.