SHA224.java revision 87490acd76f544251011cf49753d4d0a61f86a66 
1package org.bouncycastle.jcajce.provider.digest;
2
3import org.bouncycastle.asn1.nist.NISTObjectIdentifiers;
4import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers;
5import org.bouncycastle.crypto.CipherKeyGenerator;
6import org.bouncycastle.crypto.digests.SHA224Digest;
7import org.bouncycastle.crypto.macs.HMac;
8import org.bouncycastle.jcajce.provider.config.ConfigurableProvider;
9import org.bouncycastle.jcajce.provider.symmetric.util.BaseKeyGenerator;
10import org.bouncycastle.jcajce.provider.symmetric.util.BaseMac;
11
12public class SHA224
13{
14    private SHA224()
15    {
16
17    }
18
19    static public class Digest
20        extends BCMessageDigest
21        implements Cloneable
22    {
23        public Digest()
24        {
25            super(new SHA224Digest());
26        }
27
28        public Object clone()
29            throws CloneNotSupportedException
30        {
31            Digest d = (Digest)super.clone();
32            d.digest = new SHA224Digest((SHA224Digest)digest);
33
34            return d;
35        }
36    }
37
38    public static class HashMac
39        extends BaseMac
40    {
41        public HashMac()
42        {
43            super(new HMac(new SHA224Digest()));
44        }
45    }
46
47    public static class KeyGenerator
48        extends BaseKeyGenerator
49    {
50        public KeyGenerator()
51        {
52            super("HMACSHA224", 224, new CipherKeyGenerator());
53        }
54    }
55
56    public static class Mappings
57        extends DigestAlgorithmProvider
58    {
59        private static final String PREFIX = SHA224.class.getName();
60
61        public Mappings()
62        {
63        }
64
65        public void configure(ConfigurableProvider provider)
66        {
67            provider.addAlgorithm("MessageDigest.SHA-224", PREFIX + "$Digest");
68            provider.addAlgorithm("Alg.Alias.MessageDigest.SHA224", "SHA-224");
69            provider.addAlgorithm("Alg.Alias.MessageDigest." + NISTObjectIdentifiers.id_sha224, "SHA-224");
70
71            addHMACAlgorithm(provider, "SHA224", PREFIX + "$HashMac",  PREFIX + "$KeyGenerator");
72            addHMACAlias(provider, "SHA224", PKCSObjectIdentifiers.id_hmacWithSHA224);
73
74        }
75    }
76}
77