1 /*
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13  * accompanied this code).
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23 
24 /*
25  * @test
26  * @bug 4512704
27  * @summary Verify that AES cipher can generate default IV in encrypt mode
28  * @author Valerie Peng
29  */
30 import java.io.PrintStream;
31 import java.security.*;
32 import java.security.spec.*;
33 import java.util.Random;
34 
35 import javax.crypto.*;
36 import javax.crypto.spec.*;
37 import java.security.Provider;
38 
39 public class Test4512704 {
40     private static final String ALGO = "AES";
41     private static final String PADDING = "NoPadding";
42     private static final int KEYSIZE = 16; // in bytes
43 
execute(String mode)44     public void execute(String mode) throws Exception {
45 
46         AlgorithmParameterSpec aps = null;
47         String transformation = ALGO + "/" + mode + "/"+PADDING;
48         Cipher ci = Cipher.getInstance(transformation, "SunJCE");
49 
50         KeyGenerator kg = KeyGenerator.getInstance(ALGO, "SunJCE");
51         kg.init(KEYSIZE*8);
52         SecretKey key = kg.generateKey();
53         // TEST FIX 4512704
54         try {
55             ci.init(Cipher.ENCRYPT_MODE, key, aps);
56         } catch(InvalidAlgorithmParameterException ex) {
57             throw new Exception("parameter should be generated when null is specified!");
58         }
59         System.out.println(transformation + ": Passed");
60     }
61 
main(String[] args)62     public static void main (String[] args) throws Exception {
63         Test4512704 test = new Test4512704();
64         test.execute("CBC");
65         test.execute("GCM");
66     }
67 }
68