Hello...

I'm new to both this group and VB6, so if this seems like a really
stupid question, then it probobly is, and I claim immunity from
ridicule by virtue of ignorance - so, sorry in advance!

I'm writing my first VB6 program (mostly for educational purposes) that
requires users to store confidential information (such as passwords,
pin numbers, etc.) for later retrieval.  I know how to mask this data
from view using a password character, however, where and how do I store
this data.  I tried a .dat file but this can be read using notepad.
Can this be stored within the program itself and edited, deleted or
added as needed?  I must have completely missed the chapter on data
files and how to keep them confidential.  S.O.S.

Thanks,

Show quote Hide quote There's nothing built in. You can encrypt strings before storing if you
want.....

EzCryptoEngineOCX
http://www.planetsourcecode.com/vb/scripts/ShowCode.asp?txtCodeId=50290&lngWId=1

Show quote Hide quote IMHO, DON'T attempt to secure an application or data file by any 'local'
programming means - use system services provided for that purpose.

You could perhaps come up with some scheme that would allow you to hide a
key and do some encrypt/decrypt of 'publically' available information. But
it is doomed to fail. Especially around students - they are the worse,
because they have the time, the desire (whether curiosity or to show-off),
and no moral sense of being dishonest (it is just playing around).

Invoke system services of the desktop/servers you are using. ie - setup
separate logins, create groups, separate folders, profiles.

If this is too much, here is a minimal setup that may work...
Create a folder and give it Execute-Only permission to the outside world.
Create an app a student can call that accepts passwords/usernames, etc. And
then stores that information in that folder. It works as your gatekeeper.
The app can read your .dat file and read/write to material in that folder,
but no one else can (except the admin of course). You can also encrypt most
of the files in that folder, etc.

-ralph

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