How to use

JceAsymmetricKeyUnwrapper

in

org.spongycastle.operator.jcajce

public JceAsymmetricKeyUnwrapper createAsymmetricUnwrapper(AlgorithmIdentifier keyEncryptionAlgorithm, PrivateKey keyEncryptionKey)
{
  return new JceAsymmetricKeyUnwrapper(keyEncryptionAlgorithm, keyEncryptionKey).setProvider(providerName);
}

protected Key extractSecretKey(AlgorithmIdentifier keyEncryptionAlgorithm, AlgorithmIdentifier encryptedKeyAlgorithm, byte[] encryptedEncryptionKey)
  throws CMSException
  JceAsymmetricKeyUnwrapper unwrapper = helper.createAsymmetricUnwrapper(keyEncryptionAlgorithm, recipientKey).setMustProduceEncodableUnwrappedKey(unwrappedKeyMustBeEncodable);
      unwrapper.setAlgorithmMapping(algorithm, (String)extraMappings.get(algorithm));
    Key key = helper.getJceKey(encryptedKeyAlgorithm.getAlgorithm(), unwrapper.generateUnwrappedKey(encryptedKeyAlgorithm, encryptedEncryptionKey));

private Key extractSecretKey(AlgorithmIdentifier keyEncryptionAlgorithm, AlgorithmIdentifier contentEncryptionAlgorithm, byte[] encryptedContentEncryptionKey)
  throws CRMFException
{
  try
  {
    JceAsymmetricKeyUnwrapper unwrapper = new JceAsymmetricKeyUnwrapper(keyEncryptionAlgorithm, recipientKey);
    if (provider != null)
    {
      unwrapper.setProvider(provider);
    }
    if (providerName != null)
    {
      unwrapper.setProvider(providerName);
    }
    return new SecretKeySpec((byte[])unwrapper.generateUnwrappedKey(contentEncryptionAlgorithm, encryptedContentEncryptionKey).getRepresentation(), contentEncryptionAlgorithm.getAlgorithm().getId());
  }
  catch (OperatorException e)
  {
    throw new CRMFException("key invalid in message: " + e.getMessage(), e);
  }
}

public JceAsymmetricKeyUnwrapper createAsymmetricUnwrapper(AlgorithmIdentifier keyEncryptionAlgorithm, PrivateKey keyEncryptionKey)
{
  return new JceAsymmetricKeyUnwrapper(keyEncryptionAlgorithm, keyEncryptionKey);
}

Cipher keyCipher = helper.createAsymmetricWrapper(this.getAlgorithmIdentifier().getAlgorithm(), extraMappings);
AlgorithmParameters algParams = helper.createAlgorithmParameters(this.getAlgorithmIdentifier());

JceAsymmetricKeyUnwrapper unwrapper = helper.createAsymmetricUnwrapper(keyEncryptionAlgorithm, recipientKey).setMustProduceEncodableUnwrappedKey(unwrappedKeyMustBeEncodable);
    unwrapper.setAlgorithmMapping(algorithm, (String)extraMappings.get(algorithm));
  Key key = helper.getJceKey(encryptedKeyAlgorithm.getAlgorithm(), unwrapper.generateUnwrappedKey(encryptedKeyAlgorithm, encryptedEncryptionKey));

public JceAsymmetricKeyUnwrapper createAsymmetricUnwrapper(AlgorithmIdentifier keyEncryptionAlgorithm, PrivateKey keyEncryptionKey)
{
  return new JceAsymmetricKeyUnwrapper(keyEncryptionAlgorithm, keyEncryptionKey);
}

Cipher keyCipher = helper.createAsymmetricWrapper(this.getAlgorithmIdentifier().getAlgorithm(), extraMappings);
AlgorithmParameters algParams = helper.createAlgorithmParameters(this.getAlgorithmIdentifier());

public JceAsymmetricKeyUnwrapper createAsymmetricUnwrapper(AlgorithmIdentifier keyEncryptionAlgorithm, PrivateKey keyEncryptionKey)
{
  return new JceAsymmetricKeyUnwrapper(keyEncryptionAlgorithm, keyEncryptionKey).setProvider(provider);
}

public JceAsymmetricKeyUnwrapper createAsymmetricUnwrapper(AlgorithmIdentifier keyEncryptionAlgorithm, PrivateKey keyEncryptionKey)
{
  return new JceAsymmetricKeyUnwrapper(keyEncryptionAlgorithm, keyEncryptionKey).setProvider(provider);
}

public JceAsymmetricKeyUnwrapper createAsymmetricUnwrapper(AlgorithmIdentifier keyEncryptionAlgorithm, PrivateKey keyEncryptionKey)
{
  return new JceAsymmetricKeyUnwrapper(keyEncryptionAlgorithm, keyEncryptionKey).setProvider(providerName);
}