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1package main;
2
3import java.security.spec.*;
4import javax.crypto.*;
5import javax.crypto.spec.*;
6
7class AESTest {
8	public static void main(String[] args) {
9		String test = "2";
10		try {
11			byte[] theKey = null;
12			byte[] theMsg = null;
13			byte[] theExp = null;
14
15			byte[] theIV = null;
16			
17
18			System.out.println("AES-128: Pruebas \n");
19
20			for (int i = 0; i < 4; i++) {
21
22				System.out.println("Vector "+(i+1));
23				if (i == 0) {
24					theKey = hexToBytes("00000000000000000000000000000000");
25					theMsg = hexToBytes("9798c4640bad75c7c3227db910174e72");
26					theIV = hexToBytes("00000000000000000000000000000000");
27					theExp = hexToBytes("a9a1631bf4996954ebc093957b234589");
28				}
29
30				if (i == 1) {
31					theKey = hexToBytes("00000000000000000000000000000000");
32					theMsg = hexToBytes("96ab5c2ff612d9dfaae8c31f30c42168");
33					theIV = hexToBytes("00000000000000000000000000000000");
34					theExp = hexToBytes("ff4f8391a6a40ca5b25d23bedd44a597");
35				}
36
37				if (i == 2) {
38					theKey = hexToBytes("00000000000000000000000000000000");
39					theMsg = hexToBytes("cb9fceec81286ca3e989bd979b0cb284");
40					theIV = hexToBytes("00000000000000000000000000000000");
41					theExp = hexToBytes("92beedab1895a94faa69b632e5cc47ce");
42				}
43
44				if (i == 3) {
45					theKey = hexToBytes("00000000000000000000000000000000");
46					theMsg = hexToBytes("58c8e00b2631686d54eab84b91f0aca1");
47					theIV = hexToBytes("00000000000000000000000000000000");
48					theExp = hexToBytes("08a4e2efec8a8e3312ca7460b9040bbf");
49				}
50
51				SecretKeySpec secretKey = new SecretKeySpec(theKey, "AES");
52				Cipher cf = Cipher.getInstance("AES/CBC/NOPADDING");
53				cf.init(Cipher.ENCRYPT_MODE, secretKey, new IvParameterSpec(theIV));
54				byte[] theCph = cf.doFinal(theMsg);
55
56				System.out.println("Key     : " + bytesToHex(theKey));
57				System.out.println("Message : " + bytesToHex(theMsg));
58				System.out.println("Cipher  : " + bytesToHex(theCph));
59				System.out.println("Expected: " + bytesToHex(theExp));
60
61				System.out.println("");
62			}
63
64		} catch (Exception e) {
65			e.printStackTrace();
66			return;
67		}
68	}
69
70	public static byte[] hexToBytes(String str) {
71		if (str == null) {
72			return null;
73		} else if (str.length() < 2) {
74			return null;
75		} else {
76			int len = str.length() / 2;
77			byte[] buffer = new byte[len];
78			for (int i = 0; i < len; i++) {
79				buffer[i] = (byte) Integer.parseInt(str.substring(i * 2, i * 2 + 2), 16);
80			}
81			return buffer;
82		}
83
84	}
85
86	public static String bytesToHex(byte[] data) {
87		if (data == null) {
88			return null;
89		} else {
90			int len = data.length;
91			String str = "";
92			for (int i = 0; i < len; i++) {
93				if ((data[i] & 0xFF) < 16)
94					str = str + "0" + java.lang.Integer.toHexString(data[i] & 0xFF);
95				else
96					str = str + java.lang.Integer.toHexString(data[i] & 0xFF);
97			}
98			return str.toUpperCase();
99		}
100	}
101}