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package org.spongycastle.jcajce.provider.digest;
import org.spongycastle.crypto.CipherKeyGenerator;
import org.spongycastle.crypto.digests.SHA3Digest;
import org.spongycastle.crypto.macs.HMac;
import org.spongycastle.jcajce.provider.config.ConfigurableProvider;
import org.spongycastle.jcajce.provider.symmetric.util.BaseKeyGenerator;
import org.spongycastle.jcajce.provider.symmetric.util.BaseMac;
public class SHA3
{
private SHA3()
{
}
static public class DigestSHA3
extends BCMessageDigest
implements Cloneable
{
public DigestSHA3(int size)
{
super(new SHA3Digest(size));
}
public Object clone()
throws CloneNotSupportedException
{
BCMessageDigest d = (BCMessageDigest)super.clone();
d.digest = new SHA3Digest((SHA3Digest)digest);
return d;
}
}
static public class Digest224
extends DigestSHA3
{
public Digest224()
{
super(224);
}
}
static public class Digest256
extends DigestSHA3
{
public Digest256()
{
super(256);
}
}
static public class Digest384
extends DigestSHA3
{
public Digest384()
{
super(384);
}
}
static public class Digest512
extends DigestSHA3
{
public Digest512()
{
super(512);
}
}
/**
* SHA3 HMac
*/
public static class HashMac224
extends BaseMac
{
public HashMac224()
{
super(new HMac(new SHA3Digest(224)));
}
}
public static class HashMac256
extends BaseMac
{
public HashMac256()
{
super(new HMac(new SHA3Digest(256)));
}
}
public static class HashMac384
extends BaseMac
{
public HashMac384()
{
super(new HMac(new SHA3Digest(384)));
}
}
public static class HashMac512
extends BaseMac
{
public HashMac512()
{
super(new HMac(new SHA3Digest(512)));
}
}
public static class KeyGenerator224
extends BaseKeyGenerator
{
public KeyGenerator224()
{
super("HMACSHA3-224", 224, new CipherKeyGenerator());
}
}
public static class KeyGenerator256
extends BaseKeyGenerator
{
public KeyGenerator256()
{
super("HMACSHA3-256", 256, new CipherKeyGenerator());
}
}
public static class KeyGenerator384
extends BaseKeyGenerator
{
public KeyGenerator384()
{
super("HMACSHA3-384", 384, new CipherKeyGenerator());
}
}
public static class KeyGenerator512
extends BaseKeyGenerator
{
public KeyGenerator512()
{
super("HMACSHA3-512", 512, new CipherKeyGenerator());
}
}
public static class Mappings
extends DigestAlgorithmProvider
{
private static final String PREFIX = SHA3.class.getName();
public Mappings()
{
}
public void configure(ConfigurableProvider provider)
{
provider.addAlgorithm("MessageDigest.SHA3-224", PREFIX + "$Digest224");
provider.addAlgorithm("MessageDigest.SHA3-256", PREFIX + "$Digest256");
provider.addAlgorithm("MessageDigest.SHA3-384", PREFIX + "$Digest384");
provider.addAlgorithm("MessageDigest.SHA3-512", PREFIX + "$Digest512");
// look for an object identifier (NIST???) for SHA3 family
// provider.addAlgorithm("Alg.Alias.MessageDigest." + OIWObjectIdentifiers.idSHA3, "SHA3-224"); // *****
addHMACAlgorithm(provider, "SHA3-224", PREFIX + "$HashMac224", PREFIX + "$KeyGenerator224");
addHMACAlgorithm(provider, "SHA3-256", PREFIX + "$HashMac256", PREFIX + "$KeyGenerator256");
addHMACAlgorithm(provider, "SHA3-384", PREFIX + "$HashMac384", PREFIX + "$KeyGenerator384");
addHMACAlgorithm(provider, "SHA3-512", PREFIX + "$HashMac512", PREFIX + "$KeyGenerator512");
}
}
}
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