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Re: ex encrypted script
On Wed, 20 Dec 1995, Jason Rentz wrote:
> Forgive me if this is a stupid question.
>
> I'm using AT&T unix Version 5 release 3.2.2 ( UNIX System V/386 Release 3.2)
>
> I have several simple scripts that are simple yet handle important realtime
> call proccessing tasks and remote control operations. These programs are my
> programs but are running on a system that is dialed into by the vendor once
> in a while.
>
> Is there a way to encrypt a script yet still allow it to be runnable? I
> know that the simple answer is to write it in C and compile it but I don't
> have the means of doing that at the moment. (i.e. there is not compiler on
> the system)
You can try something similar to what gzexe does, but...
> I thought of a few simple protections but they all involve decrypting before
> running.
...unless the CPU has built in decryption this will be a necessity. A
compromise might be to put this into the kernel
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