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Class OutputStreamEncryption

public class OutputStreamEncryption extends OutputStream

Field Summary
static intAES_128
booleanaes
protected ARCFOUREncryptionarcfour
protected AESCiphercipher
booleanfinished
protected OutputStreamout
byte[]sb
Constructor Summary
OutputStreamEncryption(OutputStream out, byte[] key, int off, int len, int revision)
Creates a new instance of OutputStreamCounter
OutputStreamEncryption(OutputStream out, byte[] key, int revision)
Method Summary
voidclose()
Closes this output stream and releases any system resources associated with this stream.
voidfinish()
voidflush()
Flushes this output stream and forces any buffered output bytes to be written out.
voidwrite(byte[] b)
Writes b.length bytes from the specified byte array to this output stream.
voidwrite(int b)
Writes the specified byte to this output stream.
voidwrite(byte[] b, int off, int len)
Writes len bytes from the specified byte array starting at offset off to this output stream.

Field Detail

AES_128

private static final int AES_128

aes

private boolean aes

arcfour

protected ARCFOUREncryption arcfour

cipher

protected AESCipher cipher

finished

private boolean finished

out

protected OutputStream out

sb

private byte[] sb

Constructor Detail

OutputStreamEncryption

public OutputStreamEncryption(OutputStream out, byte[] key, int off, int len, int revision)
Creates a new instance of OutputStreamCounter

OutputStreamEncryption

public OutputStreamEncryption(OutputStream out, byte[] key, int revision)

Method Detail

close

public void close()
Closes this output stream and releases any system resources associated with this stream. The general contract of close is that it closes the output stream. A closed stream cannot perform output operations and cannot be reopened.

The close method of OutputStream does nothing.

Throws: IOException if an I/O error occurs.

finish

public void finish()

flush

public void flush()
Flushes this output stream and forces any buffered output bytes to be written out. The general contract of flush is that calling it is an indication that, if any bytes previously written have been buffered by the implementation of the output stream, such bytes should immediately be written to their intended destination.

The flush method of OutputStream does nothing.

Throws: IOException if an I/O error occurs.

write

public void write(byte[] b)
Writes b.length bytes from the specified byte array to this output stream. The general contract for write(b) is that it should have exactly the same effect as the call write(b, 0, b.length).

Parameters: b the data.

Throws: IOException if an I/O error occurs.

See Also: java.io.OutputStream#write(byte[], int, int)

write

public void write(int b)
Writes the specified byte to this output stream. The general contract for write is that one byte is written to the output stream. The byte to be written is the eight low-order bits of the argument b. The 24 high-order bits of b are ignored.

Subclasses of OutputStream must provide an implementation for this method.

Parameters: b the byte.

Throws: IOException if an I/O error occurs. In particular, an IOException may be thrown if the output stream has been closed.

write

public void write(byte[] b, int off, int len)
Writes len bytes from the specified byte array starting at offset off to this output stream. The general contract for write(b, off, len) is that some of the bytes in the array b are written to the output stream in order; element b[off] is the first byte written and b[off+len-1] is the last byte written by this operation.

The write method of OutputStream calls the write method of one argument on each of the bytes to be written out. Subclasses are encouraged to override this method and provide a more efficient implementation.

If b is null, a NullPointerException is thrown.

If off is negative, or len is negative, or off+len is greater than the length of the array b, then an IndexOutOfBoundsException is thrown.

Parameters: b the data. off the start offset in the data. len the number of bytes to write.

Throws: IOException if an I/O error occurs. In particular, an IOException is thrown if the output stream is closed.