readme first.txt

一个比较简单的加密程序

Important please read it all:
You need to unzip ActiveLock first and follow the instruction inside the file to be able to use the programs in this Zip file.


Dear Friend in Visual Basic,
This is the second edition of TheLock the new name is DoubleLock
We added some more security to the lock and therefore the new name DoubleLock.
DoubleLock demonstrates how you can make a shareware program that locks itself using:
* ActiveLock OCX Control freeware Copyright by Nelson Ferraz

What is New? **********New**********New**********New**********New

*The Lockprog procedure, 
*(New) a small Key encryption utility,
* and the (New) login form by Ahmed Hassan

Note that you should use a stronger encrypt decrypt functions.
The one included is only to show you how you can do it.
I can not tell you which algorithm you should choose because
It should be kept secret!

How to use:
1-Run the program and get the software code.
2-Use the Key generator to generate the unlock key.
3-Put the Key in the Key Enc Dec.exe and encode key.
4-Put the Encoded key in the login form.
the program will be registered.

Why the encryption utility is needed?
Well, Better Lock for your programs.
Moreover, Since ActiveLock is available on the Internet for every one what if someone gets hold of a key generator (He still needs the password you entered in your program while developing it and which you should never give to anyone!) and we will assume that he also got your password as well! Then he will be able to generate a key to unlock the program, If it were The Lock he would unlock the program.
But with DoubleLock the key is WORTH NOTHING because it will not unlock the program.
The program is looking for THE ENCRYPTED KEY. Which you are going to generate with a small utility only you (ONLY YOU) have the code for it.
And that is why I did not give you a particular algorithm to use. (It is up to you which one you choose to use)

Please refer to Active Lock for details and conditions of use.
I would like to thank my friend in Visual Basic Nelson Ferraz
For making Active Lock available for Visual Basic programmers free of charge.
And also because he was the one who started all of this.
I am just making improvements.
By the way I am using ActiveLock in my programs.

I hope that you find this program useful and you use in your programs
And I would like to get your comments or suggestions.

We (Nelson Ferraz & Ahmed Hassan) are trying to make the best there is in shareware locking, and for free.
So please help us with your feed back.

My e-mail is    [e-mail]

If you would like to comment on Active Lock
Please send e- mail to Nelson Ferraz directly.
ActiveLock web site
http://www.insite.com.br/~nferraz/activelock/

Feel free to use this program in anyway you want.
This code is provided as is without any warranty of any kind etc. bla bla bla.

Please send me your feed back for improvements for the third edition that I am currently working on.
Ahmed Hassan
 [e-mail]
5/4/1999