bcprov/src/main/java/org/bouncycastle/jce/provider/test/AlgorithmParametersTest.java


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110

package org.bouncycastle.jce.provider.test;

import org.bouncycastle.jce.provider.BouncyCastleProvider;
import org.bouncycastle.util.encoders.Base64;
import org.bouncycastle.util.test.SimpleTest;

import java.io.IOException;
import java.security.AlgorithmParameters;
import java.security.Security;
import java.security.spec.AlgorithmParameterSpec;
import java.security.spec.DSAParameterSpec;
import java.security.spec.InvalidParameterSpecException;

public class AlgorithmParametersTest
    extends SimpleTest
{
    private byte[] dsaParams = Base64.decode(
        "MIGcAkEAjfKklEkidqo9JXWbsGhpy+rA2Dr7jQz3y7gyTw14guXQdi/FtyEOr8Lprawyq3qsSWk9+/g3J"
      + "MLsBzbuMcgCkQIVAMdzIYxzfsjumTtPLe0w9I7azpFfAkBP3Z9K7oNeZMXEXYpqvrMUgVdFjq4lnWJoV8"
      + "Rwe+TERStHTkqSO7sp0lq7EEggVMcuXtarKNsxaJ+qyYv/n1t6");

    private void basicTest(String algorithm, Class algorithmParameterSpec, byte[] asn1Encoded)
        throws Exception
    {
        AlgorithmParameters alg = AlgorithmParameters.getInstance(algorithm, "BC");

        alg.init(asn1Encoded);

        try
        {
            alg.init(asn1Encoded);
            fail("encoded re-initialization not detected");
        }
        catch (IOException e)
        {
            // expected already initialized
        }

        AlgorithmParameterSpec spec = alg.getParameterSpec(algorithmParameterSpec);

        try
        {
            alg.init(spec);
            fail("spec re-initialization not detected");
        }
        catch (InvalidParameterSpecException e)
        {
            // expected already initialized
        }

        try
        {
            spec = alg.getParameterSpec(AlgorithmParameterSpec.class);
            fail("wrong spec not detected");
        }
        catch (InvalidParameterSpecException e)
        {
            // expected unknown object
        }

        try
        {
            spec = alg.getParameterSpec(null);
            fail("null spec not detected");
        }
        catch (NullPointerException e)
        {
            // expected unknown object
        }

        alg = AlgorithmParameters.getInstance(algorithm, "BC");

        alg.init(asn1Encoded, "ASN.1");

        alg = AlgorithmParameters.getInstance(algorithm, "BC");

        alg.init(asn1Encoded, null);

        alg = AlgorithmParameters.getInstance(algorithm, "BC");

        try
        {
            alg.init(asn1Encoded, "FRED");
            fail("unknown spec not detected");
        }
        catch (IOException e)
        {
            // expected already initialized
        }
    }

    public void performTest()
        throws Exception
    {
        basicTest("DSA", DSAParameterSpec.class, dsaParams);
    }

    public String getName()
    {
        return "AlgorithmParameters";
    }

    public static void main(
        String[]    args)
    {
        Security.addProvider(new BouncyCastleProvider());

        runTest(new AlgorithmParametersTest());
    }
}