?
Solved

Protection of .mdb files

Posted on 2002-06-14
4
Medium Priority
?
209 Views
Last Modified: 2010-05-02
How to protect my microsoft database file and open it from my visaul basic project.

Please: not with passowrd protection, because there are a lot of easy to use haker programs to know my complicated password

elzohry
0
Comment
Question by:elzohry
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
4 Comments
 
LVL 22

Expert Comment

by:rspahitz
ID: 7079525
Well, the other way is to use the VB program to encrypt and decrypt every piece of data going through the DB.

After you set up your fields in the table, have each field call an encrypt routine before being Inserted or Updated such as this:

strSQL = "Update tblXXX Set field1 = " & EncryptData(txtField1.Text) & ", field2 = " & EncryptData(txtField2.Text)
...

And decrypt when retrieved:
strSQL = "Select field1, field2 from tblXXX"
...
txtField1.Text = DecryptData(rstYYY.Field("field1").Value)
txtField2.Text = DecryptData(rstYYY.Field("field2").Value)

Private function EncryptData(DataToEncrypt as String) as String
' encryption routine of your choice
End function

Private function DecryptData(DataToDecrypt as String) as String
' decryption routine of your choice
End function

0
 

Author Comment

by:elzohry
ID: 7079920
is there any other way ,
The Ecryption will make my Database So slow .
I used lot of memo Fields
Thanks
0
 
LVL 16

Expert Comment

by:Richie_Simonetti
ID: 7080080
So, migrate to SQL Server/Oracle/informix or other one.
0
 
LVL 6

Accepted Solution

by:
pierrecampe earned 200 total points
ID: 7080191
pasword protection on access db's is easely bypassed
but i yet have to encounter someone who could get past user-lever security on a access db
i suppose you do not have msaccess so look here:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dndao/html/daotoadoupdate_topic7.asp
 
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction While answering a recent question (http://www.experts-exchange.com/Q_27402310.html) in the VB classic zone, I wrote some VB code in the (Office) VBA environment, rather than fire up my older PC.  I didn't post completely correct code o…
Article by: Martin
Here are a few simple, working, games that you can use as-is or as the basis for your own games. Tic-Tac-Toe This is one of the simplest of all games.   The game allows for a choice of who goes first and keeps track of the number of wins for…
Get people started with the process of using Access VBA to control Excel using automation, Microsoft Access can control other applications. An example is the ability to programmatically talk to Excel. Using automation, an Access application can laun…
Get people started with the utilization of class modules. Class modules can be a powerful tool in Microsoft Access. They allow you to create self-contained objects that encapsulate functionality. They can easily hide the complexity of a process from…
Suggested Courses

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question