qswZWbwy

1package test;
2
3import java.nio.charset.StandardCharsets;
4import java.security.MessageDigest;
5import java.security.NoSuchAlgorithmException;
6
7public class TestGiftcardSignature {
8	
9	public static void main(String[] args) {
10		
11		String applicationCode = "Gun3aMJiOHs7mxVAOgeKQVzahnxPFqlB";
12		String referenceId = "TRX1708901";
13		String receiptNo = "TRX1708901";
14		String upc = "4715109295337";
15		String pan = "0006375027914901274";
16		String currencyCode = "THB";
17		String amount = "100.00";
18		String storeId = "00799";
19		String terminalId = "00799001";
20		String secretKey = "YRK3AggFlZP7JcsSlDBhnseAEKcmXNIT";
21		
22		String preactData = applicationCode + upc + pan + currencyCode + amount + storeId + terminalId + secretKey;
23		String preactDataSignature = md5(preactData);
24		System.out.println("preactData = "+preactDataSignature);
25		
26		String actData = applicationCode + referenceId + receiptNo + upc + pan + currencyCode + amount + storeId + terminalId + secretKey;
27		String actDataSignature = md5(actData);
28		System.out.println("actData = "+actDataSignature);
29		
30		String deactData = applicationCode + referenceId + receiptNo + upc + pan + currencyCode + amount + storeId + terminalId + secretKey;
31		String deactDataSignature = md5(deactData);
32		System.out.println("deactData = "+deactDataSignature);
33	}
34	
35	public static String md5(String data) {
36		try {
37			MessageDigest digest = MessageDigest.getInstance("MD5");
38			byte[] encodedhash = digest.digest(data.getBytes(StandardCharsets.UTF_8));
39			
40			return bytesToHex(encodedhash);
41		} catch (NoSuchAlgorithmException e) {
42			throw new RuntimeException("NoSuchAlgorithmException >>> "+e.toString());
43		}
44	}
45
46	private static String bytesToHex(byte[] hash) {
47		StringBuffer hexString = new StringBuffer();
48		for (int i = 0; i < hash.length; i++) {
49			String hex = Integer.toHexString(0xff & hash[i]);
50			if (hex.length() == 1) {
51				hexString.append('0');	
52			}
53			hexString.append(hex);
54		}
55		return hexString.toString();
56	}
57}