org.freehep.util.io

Class EEXECEncryption

java.lang.Object

java.io.OutputStream

org.freehep.util.io.EEXECEncryption

All Implemented Interfaces:

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

public class EEXECEncryption
extends java.io.OutputStream
implements EEXECConstants

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

Field Summary

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

C1, C2, CHARSTRING_R, EEXEC_R, N

Constructor Summary

Constructors

Constructor and Description
EEXECEncryption(java.io.OutputStream out) Creates an EEXECEncryption from given stream.
EEXECEncryption(java.io.OutputStream out, int r) Creates an EEXECEncryption from given stream.
EEXECEncryption(java.io.OutputStream out, int r, int n) Creates an EEXECEncryption from given stream.

Method Summary

Modifier and Type	Method and Description
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

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

Constructor Detail

EEXECEncryption

public EEXECEncryption(java.io.OutputStream out)

Creates an EEXECEncryption from given stream.

Parameters:

out - stream to write

EEXECEncryption

public EEXECEncryption(java.io.OutputStream out,
                       int r)

Creates an EEXECEncryption from given stream.

Parameters:

out - stream to write

r -

EEXECEncryption

public EEXECEncryption(java.io.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 java.io.IOException

Specified by:

write in class java.io.OutputStream

Throws:

java.io.IOException

flush

public void flush()
           throws java.io.IOException

Specified by:

flush in interface java.io.Flushable

Overrides:

flush in class java.io.OutputStream

Throws:

java.io.IOException

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Overrides:

close in class java.io.OutputStream

Throws:

java.io.IOException

encryptString

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

Encrypt array of characters.

Parameters:

chars - int array to encrypt

r -

n -

Returns:

encrypted array

Throws:

java.io.IOException - if write fails (never happens)