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23  
24  /*
25   * @test
26   * @bug 0000000
27   * @summary Checks compliance of the HMAC-MD5 implementation with
28   *      RFC 2104, using the test vectors specified there.
29   * @author Jan Luehe
30   */
31  
32  import java.security.*;
33  import javax.crypto.*;
34  import javax.crypto.spec.*;
35  
36  public class HmacMD5 {
37  
38      public static void main(String argv[]) throws Exception {
39              int i, j, n;
40              Mac mac;
41  
42              Provider jce = new com.sun.crypto.provider.SunJCE();
43              Security.addProvider(jce);
44  
45              byte[][][] test_data = {
46                  {
47                      { (byte)0x0b, (byte)0x0b, (byte)0x0b, (byte)0x0b,
48                        (byte)0x0b, (byte)0x0b, (byte)0x0b, (byte)0x0b,
49                        (byte)0x0b, (byte)0x0b, (byte)0x0b, (byte)0x0b,
50                        (byte)0x0b, (byte)0x0b, (byte)0x0b, (byte)0x0b }, // key1
51                      "Hi There".getBytes(), // data1
52                      { (byte)0x92, (byte)0x94, (byte)0x72, (byte)0x7a,
53                        (byte)0x36, (byte)0x38, (byte)0xbb, (byte)0x1c,
54                        (byte)0x13, (byte)0xf4, (byte)0x8e, (byte)0xf8,
55                        (byte)0x15, (byte)0x8b, (byte)0xfc, (byte)0x9d // result1
56                      }
57                  },
58                  {
59                      "Jefe".getBytes(), // key2
60                      "what do ya want for nothing?".getBytes(), // data2
61                      { (byte)0x75, (byte)0x0c, (byte)0x78, (byte)0x3e,
62                        (byte)0x6a, (byte)0xb0, (byte)0xb5, (byte)0x03,
63                        (byte)0xea, (byte)0xa8, (byte)0x6e, (byte)0x31,
64                        (byte)0x0a, (byte)0x5d, (byte)0xb7, (byte)0x38 // result2
65                      }
66                  },
67                  {
68                      { (byte)0xAA, (byte)0xAA, (byte)0xAA, (byte)0xAA,
69                        (byte)0xAA, (byte)0xAA, (byte)0xAA, (byte)0xAA,
70                        (byte)0xAA, (byte)0xAA, (byte)0xAA, (byte)0xAA,
71                        (byte)0xAA, (byte)0xAA, (byte)0xAA, (byte)0xAA // key3
72                      },
73                      { (byte)0xDD, (byte)0xDD, (byte)0xDD, (byte)0xDD,
74                        (byte)0xDD, (byte)0xDD, (byte)0xDD, (byte)0xDD,
75                        (byte)0xDD, (byte)0xDD, (byte)0xDD, (byte)0xDD,
76                        (byte)0xDD, (byte)0xDD, (byte)0xDD, (byte)0xDD,
77                        (byte)0xDD, (byte)0xDD, (byte)0xDD, (byte)0xDD,
78                        (byte)0xDD, (byte)0xDD, (byte)0xDD, (byte)0xDD,
79                        (byte)0xDD, (byte)0xDD, (byte)0xDD, (byte)0xDD,
80                        (byte)0xDD, (byte)0xDD, (byte)0xDD, (byte)0xDD,
81                        (byte)0xDD, (byte)0xDD, (byte)0xDD, (byte)0xDD,
82                        (byte)0xDD, (byte)0xDD, (byte)0xDD, (byte)0xDD,
83                        (byte)0xDD, (byte)0xDD, (byte)0xDD, (byte)0xDD,
84                        (byte)0xDD, (byte)0xDD, (byte)0xDD, (byte)0xDD,
85                        (byte)0xDD, (byte)0xDD // data3
86                      },
87                      { (byte)0x56, (byte)0xbe, (byte)0x34, (byte)0x52,
88                        (byte)0x1d, (byte)0x14, (byte)0x4c, (byte)0x88,
89                        (byte)0xdb, (byte)0xb8, (byte)0xc7, (byte)0x33,
90                        (byte)0xf0, (byte)0xe8, (byte)0xb3, (byte)0xf6 // result3
91                      }
92                  }
93              };
94  
95              mac = Mac.getInstance("HmacMD5");
96              for (i=0; i<3; i++) {
97                  j=0;
98  
99                  mac.init(new SecretKeySpec(test_data[i][j++], "HMAC"));
100                 byte[] result = mac.doFinal(test_data[i][j++]);
101                 if (result.length != test_data[i][j].length) {
102                     throw new Exception("Different result length");
103                 }
104                 for (n=0; n<result.length; n++) {
105                     if (result[n] != test_data[i][j][n]) {
106                         throw new Exception("Different");
107                     }
108                 }
109             }
110 
111             // now test multiple-part operation, using the 2nd test vector
112             mac = Mac.getInstance("HmacMD5");
113             mac.init(new SecretKeySpec("Jefe".getBytes(), "HMAC"));
114             mac.update("what do ya ".getBytes());
115             mac.update("want for ".getBytes());
116             mac.update("nothing?".getBytes());
117             byte[] result = mac.doFinal();
118             if (result.length != test_data[1][2].length) {
119                 throw new Exception("Different result length");
120             }
121             for (i=0; i<result.length; i++) {
122                 if (result[i] != test_data[1][2][i]) {
123                     throw new Exception("Different");
124                 }
125             }
126 
127             System.out.println("Test SUCCEEDED");
128     }
129 }