http://www.bouncycastle.org/java.html: 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.
  • The Legion of the Bouncy Castle Inc. 
public interface org.bouncycastle.math.field.ExtensionField extends org.bouncycastle.math.field.FiniteField
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.bouncycastle.math.field.ExtensionField
  super_class: java.lang.Object
{
  public abstract org.bouncycastle.math.field.FiniteField getSubfield();
    descriptor: ()Lorg/bouncycastle/math/field/FiniteField;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract int getDegree();
    descriptor: ()I
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "ExtensionField.java"