org.dmonix.cipher
Class DMCipherOutputStream

java.lang.Object
  java.io.OutputStream
      java.io.FilterOutputStream
          org.dmonix.cipher.DMCipherOutputStream

Direct Known Subclasses:

DMCipherOutputStreamDES, DMCipherOutputStreamPBE

public abstract class DMCipherOutputStream

extends java.io.FilterOutputStream

The base class for all ciphered output streams.

Copyright: Copyright (c) 2004

Company: dmonix.org

Version:

1.0

Author:

Peter Nerg

Field Summary

Fields inherited from class java.io.FilterOutputStream

out

Constructor Summary

protected

DMCipherOutputStream(java.io.OutputStream ostream, java.lang.String cipherAlgorithm)

Method Summary

java.lang.Object	clone() THIS METHOD IS NOT SUPPORTED!
void	close() Closes this output stream and releases any system resources associated with the stream.
void	flush() Flushes this output stream and forces any buffered output bytes to be written out to the stream.
protected void	initCipher(java.security.Key key) Init the cipher.
protected void	initCipher(java.security.Key key, java.security.spec.AlgorithmParameterSpec param) Init the cipher.
void	write(byte[] b) Writes b.length bytes to this output stream.
void	write(byte[] b, int off, int len) Writes len bytes from the specified byte array starting at offset off to this output stream.
void	write(int b) Writes the specified byte to this output stream.

Methods inherited from class java.lang.Object

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

Constructor Detail

DMCipherOutputStream

protected DMCipherOutputStream(java.io.OutputStream ostream,
                               java.lang.String cipherAlgorithm)
                        throws java.security.NoSuchAlgorithmException,
                               javax.crypto.NoSuchPaddingException

Method Detail

clone

public final java.lang.Object clone()
                             throws java.lang.CloneNotSupportedException

THIS METHOD IS NOT SUPPORTED!
The method always throws java.lang.CloneNotSupportedException

Returns:

-

Throws:

java.lang.CloneNotSupportedException - The exception is always thrown

close

public void close()
           throws java.io.IOException

Closes this output stream and releases any system resources associated with the stream.
The close method of this class calls its flush method, and then calls the close method of its underlying output stream.

Throws:

java.io.IOException

flush

public void flush()
           throws java.io.IOException

Flushes this output stream and forces any buffered output bytes to be written out to the stream.

Throws:

java.io.IOException

write

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

Writes b.length bytes to this output stream.

Parameters:

b - the data to be written.

Throws:

java.io.IOException

write

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

Writes len bytes from the specified byte array starting at offset off to this output stream.

Parameters:

b - the data.

off - the start offset in the data.

len - the number of bytes to write.

Throws:

java.io.IOException

write

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

Writes the specified byte to this output stream.

Parameters:

b - the data

Throws:

java.io.IOException

initCipher

protected void initCipher(java.security.Key key)
                   throws java.security.InvalidKeyException

Init the cipher.

Parameters:

key - The key for the cipher

Throws:

java.security.InvalidKeyException

initCipher

protected void initCipher(java.security.Key key,
                          java.security.spec.AlgorithmParameterSpec param)
                   throws java.security.InvalidKeyException,
                          java.security.InvalidAlgorithmParameterException

Init the cipher.

Parameters:

key - The key for the cipher

param - Cipher parameters

Throws:

java.security.InvalidKeyException

java.security.InvalidAlgorithmParameterException