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package org.bouncycastle.openssl.jcajce;
import java.security.Provider;
import org.bouncycastle.jcajce.util.DefaultJcaJceHelper;
import org.bouncycastle.jcajce.util.JcaJceHelper;
import org.bouncycastle.jcajce.util.NamedJcaJceHelper;
import org.bouncycastle.jcajce.util.ProviderJcaJceHelper;
import org.bouncycastle.openssl.PEMDecryptor;
import org.bouncycastle.openssl.PEMDecryptorProvider;
import org.bouncycastle.openssl.PEMException;
import org.bouncycastle.openssl.PasswordException;
public class JcePEMDecryptorProviderBuilder
{
private JcaJceHelper helper = new DefaultJcaJceHelper();
public JcePEMDecryptorProviderBuilder setProvider(Provider provider)
{
this.helper = new ProviderJcaJceHelper(provider);
return this;
}
public JcePEMDecryptorProviderBuilder setProvider(String providerName)
{
this.helper = new NamedJcaJceHelper(providerName);
return this;
}
public PEMDecryptorProvider build(final char[] password)
{
return new PEMDecryptorProvider()
{
public PEMDecryptor get(final String dekAlgName)
{
return new PEMDecryptor()
{
public byte[] decrypt(byte[] keyBytes, byte[] iv)
throws PEMException
{
if (password == null)
{
throw new PasswordException("Password is null, but a password is required");
}
return PEMUtilities.crypt(false, helper, keyBytes, password, dekAlgName, iv);
}
};
}
};
}
}
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