Disk Encryption

[ArevProgrammer]

Does anyone know how to setup install routines like microsoft that encrypts a users name etc, and write them
back to a floppy drive.

Thank You.
The sky will always be BLUE!

 

[ramani]

I do not know if your intention is to protect the software or enable the user use info repeatedly.

1. You can always save user info in a floppy and reuse it, by using a table for this purpose. This is not a big deal.

2. Since you ask about encryption, I would suggest somethng more... You can keep the user information (Be it in floppy or in DataBase related to your application) surely in the database related to your application. For example, the clients name, address, number of users, version number etc and also a field for holding the license. You can have a routine .. say...
myCatch = ALLT(UserName)+ProductCode+NumberOfUsers+MyEncryptionPurposeAddedWord
myLicense = SYS(2007,myCatch)
And store this value in the license.

Whenever the application starts, check the database values checked with the stored values and continue or quit. This will ensure that duplicate copies cannot be made for differebt client use.

REMEMBER to put the condition, the users cannot change their name or else the license is not valid, so that legal side is taken care off. Never allow the name field to be changed without your permission/license number.

I am doing some such thing and even ensure that simultaneous usage by number of users limited to the granted number of users in addition to the enforcing of copyright protection. This is successful for a decade now.
I have posted a similar posting, in the form of reply in this forum, as to 'how to limit number of users'.


Best of luck. ramani :-9
(Subramanian.G)
FoxAcc
ramani_g@yahoo.com
LET KNOW IF THIS HELPED. ENOUGH EXPERTS ARE HERE TO HELP YOU OUT! BEST OF LUCK