This is a copy of Voon-Li Chung's privyCryptApplet.html from 
http://www.csse.uwa.edu.au/~vlchung/code/privyCrypt/privyCryptApplet.html
Use right mouseclick to COPY or PASTE text into the applet interface. 
If the right mouseclick does not work, you can try Ctrl+C and Ctrl+V
Don't forget to delete the "Encryption code" when you are finished using 
the applet. (November.2005)
 
About privyCrypt the Java Applet
The privyCrypt Java applet was a logical extension to the privyCrypt series 
of free encryption utilities, which are currently available for Win32, 
UNIX command-line and PalmOS. The privyCrypt series was written by 
Voon-Li Chung (vlchung@earthling.net) mainly as a small programming skills 
demonstration. 
Note that the applet is downloaded from the site you visited, but it runs 
completely locally - no connection to the internet is made to decrypt / encrypt 
your message. It has been designed so that it will operate properly on screens 
as low res as 640x480. 

More information about privyCrypt is available from 
http://www.cs.uwa.edu.au/~vlchung/code/privyCrypt/ 

The code for the Blowfish encryption algorithm is a port of Eric Young's 
sample C implementation to Java. You are more than welcome to link to 
this copy of the privyCrypt applet; however, if you have a website of 
your own somewhere, I'd prefer it if you put a local copy of it somewhere 
in case something happens to my web area (one of the most annoying things 
I have come across is every link in existance to a piece of software I 
was looking for points to the same site, which is down). 


Using privyCrypt the Java Applet
Encrypting the message is simple - enter your message in the big text 
area provided (either by typing or cut and pasting). Enter the 
encryption code into the text field directly adjacent to the buttons at 
the bottom, then press "Encrypt". The message will be encrypted, which 
can then be cut and pasted as-is into your favourite program. 

Decrypting is just as simple - cut and paste the entire message (you 
don't have to search through and pick out the encrypted bit - privyCrypt 
automatically screens out the bit it is interested in), enter the 
encryption code into the same text field as for encryption, and press 
"Decrypt". 
To clear the text window, press "Clear". Also note this doesn't clear the 
encryption code, so make sure you clear it if privyCrypt is running on a 
public access terminal. 

 [entry 20070505 by carpediem2100] >>> PRIMING <<<.  I discovered on some browsers, 
 that privycrypt java applet will not decrypt properly. Here is the workaround.
 Prime the applet first by encrypting some plaintext.  After this is completed,
 the applet should decrypt properly.  Give me an email if this isn't clear.


About the error messages
------------------------
No STARTTAG
Normally a privyCrypt encrypted message starts with:
"Hi, this is privycrypt. BINSIZE ALIGNSIZE" 
Where BINSIZE and ALIGNSIZE are numbers. This allows you to lazily cut and 
paste the entire message into privyCrypt's window without having to work 
out where the encrypted area starts and finishes. In this case, privyCrypt 
couldn't find the string
"Hi, this is privycrypt." 


No ENDTAG
Normally a privyCrypt encrypted message ends with:
"Goodbye! SeeYouLater" 
As with the STARTTAG, this allows you to lazily cut and paste the entire 
message into privyCrypt's window without having to work out where the 
encrypted area starts and finishes. In this case, privyCrypt couldn't find 
the string
"Goodbye! SeeYouLater" 


Code too short / long
The Blowfish encryption algorithm requires at least 16-bits of encryption 
code (that's 4 characters) and a maximum of 448 (that's 56 characters). 
As such, privyCrypt's encryption codes (the secret word) must also fall 
within this range. Remember, for every extra character in your encryption 
code, you decrease the odds of someone guessing your code by 128. 

Error: binsize / alignsize
One of the two numbers mentioned in "No STARTTAG" is missing or in the 
wrong area. 

Error: Corrupted Data
This means something really bad happened while trying to decrypt the message. 
This usually means that part of the message is missing or one of the 2 numbers 
on the first line is wrong.