Jay,
You’re asking some very basic and broad questions that are best answered by
learning file systems and filtering from the source rather than getting a
bunch of examples. Understanding this area takes quite a bit of time and
practice. It’s not something you can just pick up and piece together with
hopes it’ll work in all cases. Especially since you’re talking about
encryption. That seems straightforward but it requires some careful design
work and lots of effort.
I’d suggest you purchase the IFS Kit and go through the documentation. There
are some very good samples in there that’ll get you started but you have to
go through the docs as well. You can find the kit at
http://www.microsoft.com/whdc/devtools/ifskit/default.mspx.
In addition, you’ll want to try to locate Rajeev Nagar’s book on NT file
systems from O’Reilly. It’s out of print but you can find if you look. I
found a copy at Half Price Books.
Finally, OSR offers courses on file systems and filter development. Since
you’ve already subscribed to the list, you know where to find them.
It usually takes a couple of years at least to really get your feathers in
this area - not to scare you off. I’m just letting you know what it takes.
Good luck.
Jerry
wrote in message news:xxxxx@ntfsd…
> Hi All Driver Gurus,
>
>
> I am a bit new bee to windows file system driver development.
>
> I am working on file monitoring sort of thing in which i want to know if
> text file is created. If user saves it i want to encrypt it with some GUI
> interface giving KEY for encryption and when other person opens that text
> file then GUI there will ask KEY If it gives correct Key then Decrypt file
> and display as normal…
>
>
> For this i will need to add sort of encrypt header to my text file.
> RIGHT???
>
> How can i do this?.. Give me some startup samples to study.
>
> I need to start in very simplest manner… Means From very basic thing
> Like
>
> How Can I know if text file is created… saved…
> How can i intercept this thing…
>
>
> How can i add my header to text file. And Saved In same file.
>
> How can I cancel opening if KEY is wrong…
>
>
> Out of interest
> … Is there any other way to know text file is open ???
>
> Thanks in advance…
>
> Jay
>
>