package org.bouncycastle.jcajce.provider.digest;
import org.bouncycastle.asn1.nist.NISTObjectIdentifiers;
import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers;
import org.bouncycastle.crypto.CipherKeyGenerator;
import org.bouncycastle.crypto.digests.SHA256Digest;
import org.bouncycastle.crypto.macs.HMac;
import org.bouncycastle.jcajce.provider.config.ConfigurableProvider;
import org.bouncycastle.jcajce.provider.symmetric.util.BaseKeyGenerator;
import org.bouncycastle.jcajce.provider.symmetric.util.BaseMac;
import org.bouncycastle.jcajce.provider.symmetric.util.PBESecretKeyFactory;
public class SHA256
{
private SHA256()
{
}
static public class Digest
extends BCMessageDigest
implements Cloneable
{
public Digest()
{
super(new SHA256Digest());
}
public Object clone()
throws CloneNotSupportedException
{
Digest d = (Digest)super.clone();
d.digest = new SHA256Digest((SHA256Digest)digest);
return d;
}
}
public static class HashMac
extends BaseMac
{
public HashMac()
{
super(new HMac(new SHA256Digest()));
}
}
/**
* PBEWithHmacSHA
*/
public static class PBEWithMacKeyFactory
extends PBESecretKeyFactory
{
public PBEWithMacKeyFactory()
{
super("PBEwithHmacSHA256", null, false, PKCS12, SHA256, 256, 0);
}
}
/**
* HMACSHA256
*/
public static class KeyGenerator
extends BaseKeyGenerator
{
public KeyGenerator()
{
super("HMACSHA256", 256, new CipherKeyGenerator());
}
}
public static class Mappings
extends DigestAlgorithmProvider
{
private static final String PREFIX = SHA256.class.getName();
public Mappings()
{
}
public void configure(ConfigurableProvider provider)
{
provider.addAlgorithm("MessageDigest.SHA-256", PREFIX + "$Digest");
provider.addAlgorithm("Alg.Alias.MessageDigest.SHA256", "SHA-256");
provider.addAlgorithm("Alg.Alias.MessageDigest." + NISTObjectIdentifiers.id_sha256, "SHA-256");
provider.addAlgorithm("SecretKeyFactory.PBEWITHHMACSHA256", PREFIX + "$PBEWithMacKeyFactory");
provider.addAlgorithm("Alg.Alias.SecretKeyFactory.PBEWITHHMACSHA-256", "PBEWITHHMACSHA256");
provider.addAlgorithm("Alg.Alias.SecretKeyFactory." + NISTObjectIdentifiers.id_sha256, "PBEWITHHMACSHA256");
addHMACAlgorithm(provider, "SHA256", PREFIX + "$HashMac", PREFIX + "$KeyGenerator");
addHMACAlias(provider, "SHA256", PKCSObjectIdentifiers.id_hmacWithSHA256);
addHMACAlias(provider, "SHA256", NISTObjectIdentifiers.id_sha256);
}
}
}