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package org.spongycastle.operator.bc;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import org.spongycastle.asn1.cryptopro.CryptoProObjectIdentifiers;
import org.spongycastle.asn1.nist.NISTObjectIdentifiers;
import org.spongycastle.asn1.oiw.OIWObjectIdentifiers;
import org.spongycastle.asn1.pkcs.PKCSObjectIdentifiers;
import org.spongycastle.asn1.teletrust.TeleTrusTObjectIdentifiers;
import org.spongycastle.asn1.x509.AlgorithmIdentifier;
import org.spongycastle.crypto.ExtendedDigest;
import org.spongycastle.crypto.digests.GOST3411Digest;
import org.spongycastle.crypto.digests.MD2Digest;
import org.spongycastle.crypto.digests.MD4Digest;
import org.spongycastle.crypto.digests.MD5Digest;
import org.spongycastle.crypto.digests.RIPEMD128Digest;
import org.spongycastle.crypto.digests.RIPEMD160Digest;
import org.spongycastle.crypto.digests.RIPEMD256Digest;
import org.spongycastle.crypto.digests.SHA1Digest;
import org.spongycastle.crypto.digests.SHA224Digest;
import org.spongycastle.crypto.digests.SHA256Digest;
import org.spongycastle.crypto.digests.SHA384Digest;
import org.spongycastle.crypto.digests.SHA512Digest;
import org.spongycastle.operator.OperatorCreationException;
public class BcDefaultDigestProvider
implements BcDigestProvider
{
private static final Map lookup = createTable();
private static Map createTable()
{
Map table = new HashMap();
table.put(OIWObjectIdentifiers.idSHA1, new BcDigestProvider()
{
public ExtendedDigest get(AlgorithmIdentifier digestAlgorithmIdentifier)
{
return new SHA1Digest();
}
});
table.put(NISTObjectIdentifiers.id_sha224, new BcDigestProvider()
{
public ExtendedDigest get(AlgorithmIdentifier digestAlgorithmIdentifier)
{
return new SHA224Digest();
}
});
table.put(NISTObjectIdentifiers.id_sha256, new BcDigestProvider()
{
public ExtendedDigest get(AlgorithmIdentifier digestAlgorithmIdentifier)
{
return new SHA256Digest();
}
});
table.put(NISTObjectIdentifiers.id_sha384, new BcDigestProvider()
{
public ExtendedDigest get(AlgorithmIdentifier digestAlgorithmIdentifier)
{
return new SHA384Digest();
}
});
table.put(NISTObjectIdentifiers.id_sha512, new BcDigestProvider()
{
public ExtendedDigest get(AlgorithmIdentifier digestAlgorithmIdentifier)
{
return new SHA512Digest();
}
});
table.put(PKCSObjectIdentifiers.md5, new BcDigestProvider()
{
public ExtendedDigest get(AlgorithmIdentifier digestAlgorithmIdentifier)
{
return new MD5Digest();
}
});
table.put(PKCSObjectIdentifiers.md4, new BcDigestProvider()
{
public ExtendedDigest get(AlgorithmIdentifier digestAlgorithmIdentifier)
{
return new MD4Digest();
}
});
table.put(PKCSObjectIdentifiers.md2, new BcDigestProvider()
{
public ExtendedDigest get(AlgorithmIdentifier digestAlgorithmIdentifier)
{
return new MD2Digest();
}
});
table.put(CryptoProObjectIdentifiers.gostR3411, new BcDigestProvider()
{
public ExtendedDigest get(AlgorithmIdentifier digestAlgorithmIdentifier)
{
return new GOST3411Digest();
}
});
table.put(TeleTrusTObjectIdentifiers.ripemd128, new BcDigestProvider()
{
public ExtendedDigest get(AlgorithmIdentifier digestAlgorithmIdentifier)
{
return new RIPEMD128Digest();
}
});
table.put(TeleTrusTObjectIdentifiers.ripemd160, new BcDigestProvider()
{
public ExtendedDigest get(AlgorithmIdentifier digestAlgorithmIdentifier)
{
return new RIPEMD160Digest();
}
});
table.put(TeleTrusTObjectIdentifiers.ripemd256, new BcDigestProvider()
{
public ExtendedDigest get(AlgorithmIdentifier digestAlgorithmIdentifier)
{
return new RIPEMD256Digest();
}
});
return Collections.unmodifiableMap(table);
}
public static final BcDigestProvider INSTANCE = new BcDefaultDigestProvider();
private BcDefaultDigestProvider()
{
}
public ExtendedDigest get(AlgorithmIdentifier digestAlgorithmIdentifier)
throws OperatorCreationException
{
BcDigestProvider extProv = (BcDigestProvider)lookup.get(digestAlgorithmIdentifier.getAlgorithm());
if (extProv == null)
{
throw new OperatorCreationException("cannot recognise digest");
}
return extProv.get(digestAlgorithmIdentifier);
}
}
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