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The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8 with debug enabled.
package org.bouncycastle.jcajce.provider.util;
import java.util.HashMap;
import java.util.Map;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.nist.NISTObjectIdentifiers;
import org.bouncycastle.asn1.ntt.NTTObjectIdentifiers;
import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers;
import org.bouncycastle.util.Integers;
public class SecretKeyUtil
{
private static Map keySizes = new HashMap();
static
{
keySizes.put(PKCSObjectIdentifiers.des_EDE3_CBC.getId(), Integers.valueOf(192));
keySizes.put(NISTObjectIdentifiers.id_aes128_CBC, Integers.valueOf(128));
keySizes.put(NISTObjectIdentifiers.id_aes192_CBC, Integers.valueOf(192));
keySizes.put(NISTObjectIdentifiers.id_aes256_CBC, Integers.valueOf(256));
keySizes.put(NTTObjectIdentifiers.id_camellia128_cbc, Integers.valueOf(128));
keySizes.put(NTTObjectIdentifiers.id_camellia192_cbc, Integers.valueOf(192));
keySizes.put(NTTObjectIdentifiers.id_camellia256_cbc, Integers.valueOf(256));
}
public static int getKeySize(ASN1ObjectIdentifier oid)
{
Integer size = (Integer)keySizes.get(oid);
if (size != null)
{
return size.intValue();
}
return -1;
}
}
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