org.freehep.util.io
Class EEXECEncryption

java.lang.Object
  java.io.OutputStream
      org.freehep.util.io.EEXECEncryption

All Implemented Interfaces:

Closeable, Flushable, EEXECConstants

public class EEXECEncryption
extends OutputStream
implements EEXECConstants

Encrypts using the EEXEC form (Used by Type 1 fonts).

Version:

$Id: EEXECEncryption.java 8584 2006-08-10 23:06:37Z duns $

Author:

Simon Fischer

Field Summary

Fields inherited from interface org.freehep.util.io.EEXECConstants

C1, C2, CHARSTRING_R, EEXEC_R, N

Constructor Summary

EEXECEncryption(OutputStream out)
Creates an EEXECEncryption from given stream.

EEXECEncryption(OutputStream out, int r)
Creates an EEXECEncryption from given stream.

EEXECEncryption(OutputStream out, int r, int n)
Creates an EEXECEncryption from given stream.

Method Summary

void	close()
static int[]	encryptString(int[] chars, int r, int n) Encrypt array of characters.
void	flush()
void	write(int b)

Methods inherited from class java.io.OutputStream

write, write

Methods inherited from class java.lang.Object

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

Constructor Detail

EEXECEncryption

public EEXECEncryption(OutputStream out)

Creates an EEXECEncryption from given stream.

Parameters:

out - stream to write

EEXECEncryption

public EEXECEncryption(OutputStream out,
                       int r)

Creates an EEXECEncryption from given stream.

Parameters:

out - stream to write

r -

EEXECEncryption

public EEXECEncryption(OutputStream out,
                       int r,
                       int n)

Creates an EEXECEncryption from given stream.

Parameters:

out - stream to write

r -

n -

Method Detail

write

public void write(int b)
           throws IOException

Specified by:

write in class OutputStream

Throws:

IOException

flush

public void flush()
           throws IOException

Specified by:

flush in interface Flushable

Overrides:

flush in class OutputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Overrides:

close in class OutputStream

Throws:

IOException

encryptString

public static int[] encryptString(int[] chars,
                                  int r,
                                  int n)
                           throws IOException

Encrypt array of characters.

Parameters:

chars - int array to encrypt

r -

n -

Returns:

encrypted array

Throws:

IOException - if write fails (never happens)