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java.lang.Objectjava.io.OutputStream
com.lowagie.text.pdf.OutputStreamEncryption
public class OutputStreamEncryption
| Field Summary | |
|---|---|
private boolean |
aes
|
private static int |
AES_128
|
protected ARCFOUREncryption |
arcfour
|
protected AESCipher |
cipher
|
private boolean |
finished
|
protected OutputStream |
out
|
private byte[] |
sb
|
| Constructor Summary | |
|---|---|
OutputStreamEncryption(OutputStream out,
byte[] key,
int revision)
|
|
OutputStreamEncryption(OutputStream out,
byte[] key,
int off,
int len,
int revision)
Creates a new instance of OutputStreamCounter |
|
| Method Summary | |
|---|---|
void |
close()
Closes this output stream and releases any system resources associated with this stream. |
void |
finish()
|
void |
flush()
Flushes this output stream and forces any buffered output bytes to be written out. |
void |
write(byte[] b)
Writes b.length bytes from the specified byte array
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 |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
|---|
protected OutputStream out
protected ARCFOUREncryption arcfour
protected AESCipher cipher
private byte[] sb
private static final int AES_128
private boolean aes
private boolean finished
| Constructor Detail |
|---|
public OutputStreamEncryption(OutputStream out,
byte[] key,
int off,
int len,
int revision)
public OutputStreamEncryption(OutputStream out,
byte[] key,
int revision)
| Method Detail |
|---|
public void close()
throws IOException
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.
close in interface Closeableclose in class OutputStreamIOException - if an I/O error occurs.
public void flush()
throws IOException
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.
flush in interface Flushableflush in class OutputStreamIOException - if an I/O error occurs.
public void write(byte[] b)
throws IOException
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).
write in class OutputStreamb - the data.
IOException - if an I/O error occurs.OutputStream.write(byte[], int, int)
public void write(int b)
throws IOException
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.
write in class OutputStreamb - the byte.
IOException - if an I/O error occurs. In particular,
an IOException may be thrown if the
output stream has been closed.
public void write(byte[] b,
int off,
int len)
throws IOException
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.
write in class OutputStreamb - the data.off - the start offset in the data.len - the number of bytes to write.
IOException - if an I/O error occurs. In particular,
an IOException is thrown if the output
stream is closed.
public void finish()
throws IOException
IOException
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