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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.
package org.bouncycastle.jcajce.util;
import java.security.Provider;
import java.security.Security;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
/**
* A JCA/JCE helper that refers to the BC provider for all it's needs.
*/
public class BCJcaJceHelper
extends ProviderJcaJceHelper
{
private static volatile Provider bcProvider;
private static synchronized Provider getBouncyCastleProvider()
{
final Provider system = Security.getProvider("BC");
// Avoid using the old, deprecated system BC provider on Android.
// See: https://android-developers.googleblog.com/2018/03/cryptography-changes-in-android-p.html
if (system instanceof BouncyCastleProvider)
{
return system;
}
else if (bcProvider != null)
{
return bcProvider;
}
else
{
bcProvider = new BouncyCastleProvider();
return bcProvider;
}
}
public BCJcaJceHelper()
{
super(getBouncyCastleProvider());
}
}