http://www.bouncycastle.org/java.html: The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. This jar contains APIs for JDK 1.5 to JDK 1.8. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs.
  • The Legion of the Bouncy Castle Inc. 
interface org.bouncycastle.cms.jcajce.EnvelopedDataHelper$JCECallback
  minor version: 0
  major version: 59
  flags: flags: (0x0600) ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.bouncycastle.cms.jcajce.EnvelopedDataHelper$JCECallback
  super_class: java.lang.Object
{
  public abstract java.lang.Object doInJCE();
    descriptor: ()Ljava/lang/Object;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws org.bouncycastle.cms.CMSException, java.security.InvalidAlgorithmParameterException, java.security.InvalidKeyException, java.security.spec.InvalidParameterSpecException, java.security.NoSuchAlgorithmException, javax.crypto.NoSuchPaddingException, java.security.NoSuchProviderException
}
SourceFile: "EnvelopedDataHelper.java"
NestHost: org.bouncycastle.cms.jcajce.EnvelopedDataHelper
InnerClasses:
  abstract JCECallback = org.bouncycastle.cms.jcajce.EnvelopedDataHelper$JCECallback of org.bouncycastle.cms.jcajce.EnvelopedDataHelper