Package org.apache.xml.security.stax.impl.util

Class IVSplittingOutputStream

java.lang.Object

java.io.OutputStream

java.io.FilterOutputStream

org.apache.xml.security.stax.impl.util.IVSplittingOutputStream

All Implemented Interfaces:

java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable

public class IVSplittingOutputStream
extends java.io.FilterOutputStream

IV splitting from the first few bytes in the stream. When the iv is completely received the cipher will be initialized and this output stream will be removed from chain of output streams

Field Summary

Fields

Modifier and Type	Field	Description
private javax.crypto.Cipher	cipher
private byte[]	iv
private int	ivLength
private int	pos
private ReplaceableOuputStream	replaceableOuputStream
private java.security.Key	secretKey

Fields inherited from class java.io.FilterOutputStream

out

Constructor Summary

Constructors

Constructor	Description
IVSplittingOutputStream(java.io.OutputStream out, javax.crypto.Cipher cipher, java.security.Key secretKey, int ivLength)

Method Summary

Modifier and Type	Method	Description
byte[]	getIv()
private void	initializeCipher()
boolean	isIVComplete()
void	setParentOutputStream(ReplaceableOuputStream replaceableOuputStream)
void	write(byte[] b)
void	write(byte[] b, int off, int len)
void	write(int b)

Methods inherited from class java.io.FilterOutputStream

close, flush

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

replaceableOuputStream

private ReplaceableOuputStream replaceableOuputStream

iv

private final byte[] iv

ivLength

private final int ivLength

pos

private int pos

cipher

private final javax.crypto.Cipher cipher

secretKey

private final java.security.Key secretKey

Constructor Detail

IVSplittingOutputStream

public IVSplittingOutputStream(java.io.OutputStream out,
                               javax.crypto.Cipher cipher,
                               java.security.Key secretKey,
                               int ivLength)

Method Detail

getIv

public byte[] getIv()

isIVComplete

public boolean isIVComplete()

initializeCipher

private void initializeCipher()
                       throws java.io.IOException

Throws:

java.io.IOException

write

public void write(int b)
           throws java.io.IOException

Overrides:

write in class java.io.FilterOutputStream

Throws:

java.io.IOException

write

public void write(byte[] b)
           throws java.io.IOException

Overrides:

write in class java.io.FilterOutputStream

Throws:

java.io.IOException

write

public void write(byte[] b,
                  int off,
                  int len)
           throws java.io.IOException

Overrides:

write in class java.io.FilterOutputStream

Throws:

java.io.IOException

setParentOutputStream

public void setParentOutputStream(ReplaceableOuputStream replaceableOuputStream)