Solved Restrict copying text box data in access vba (1 Viewer)

[Ashfaque]

Yet, you could not be bothered to check for yourself?

Yes I re-installed Access and tried after full compilation and it worked. I tried copy to ****** and paste in word doc as test but could not. It means it is restricting.

Thanks all of you gentlemen.

Regards.....

 

[arnelgp]

encrypting and salting the password entered rather than obfuscating it using 'key remapping'

what i did is a "simple" remapping. it's up to the OP if he will employ much stronger algorithm.
rc4 perhaps?

 

[isladogs]

what i did is a "simple" remapping. it's up to the OP if he will employ much stronger algorithm.
rc4 perhaps?

I agree.
As Minty stated earlier, in this case I don't think the OP needs to do either encoding or encryption

Yes - I use RC4 for encryption together with salting to ensure the output of an identical text string is different each time.

For example, using RC4 to encrypt isladogs using the simple cipher AWF will ALWAYS give as output

?RC4("isladogs","AWF")
Y2ëÝñq(

If that is wrapped in a further function (in this case EcK) the output will be completely different each time:
The example below shows 6 successive outputs for the same salted, encrypted string:

?ECk(RC4("isladogs","AWF"))
=dJx¿/»PŽS¦W&WfN
)paS¤4Æ-ý À1L=Ld
<e@rÿoŽe³n\*[pX
x!Kyätß4¡|Ð!&WOg
y ZhÑA¶]ŽS”eQ kC
ysAÝM¥N«vÅ4X)Bj

 

[arnelgp]

As Minty stated earlier, in this case I don't think the OP needs to do either encoding or encryption

as ive said, use immediate window and it will show what you typed on the "password-masked" textbox.

?Forms!yourForm!yourTextbox

i don't think you immediately encrypt each character as you type?
that would make your "text" longer than what you typed?

i submitted on sample db forum, totally replacing the character you typed with "*"
therefore, if you inspect it in immediate window you get "***", not the real text.
so reversal is totally not possible.

 

[isladogs]

I've just looked at your sample database and agree that the entered text is now masked in the immediate window as well.
That's good! If doing that is sufficient for the OP, that's fine.

However, my original point applies - encoding is usually fairly simple to decode
If its worth trying to prevent unauthorised copying of text such as entered passwords by encoding the text then it would be far better to encrypt it as well.