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. 
public interface org.bouncycastle.crypto.StreamCipher
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: org.bouncycastle.crypto.StreamCipher
  super_class: java.lang.Object
{
  public abstract void init(boolean, org.bouncycastle.crypto.CipherParameters);
    descriptor: (ZLorg/bouncycastle/crypto/CipherParameters;)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws java.lang.IllegalArgumentException
    MethodParameters:
               Name  Flags
      forEncryption  
      params         

  public abstract java.lang.String getAlgorithmName();
    descriptor: ()Ljava/lang/String;
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT

  public abstract byte returnByte(byte);
    descriptor: (B)B
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
      Name  Flags
      in    

  public abstract void processBytes(byte[], int, int, byte[], int);
    descriptor: ([BII[BI)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    Exceptions:
      throws org.bouncycastle.crypto.DataLengthException
    MethodParameters:
        Name  Flags
      in      
      inOff   
      len     
      out     
      outOff  

  public abstract void reset();
    descriptor: ()V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
}
SourceFile: "StreamCipher.java"