Scanning Formats (TIFF vs. JPEG)

[Don]

Chuck Guzis wrote:
> On 8/18/2006 at 11:39 AM Don wrote:
> 
>> *MY* concern is how do you let FOREIGN code into your world
>> AND still protect things?  I.e. I can do my best to keep
>> *my* code bug-free... but, I can't keep "your" code bug-free!
>> Yet, I need to keep my *system* invulnerable to bugs that you
>> let creep in.  :-(   (writing good OS's requires considerably more
>> forethought than writing good *apps*!  :< )
> 
> Absolutely.  I suppose that some of Windows' bugginess comes from having to
> use third-party drivers and services for things not "standard legacy".

That's the problem with monolithic kernels, etc.  I.e. there is
no way to incorporate the drivers and still keep them "out"
of the kernel's protection domain.

> Something that Apple really doesn't have to worry about too much.  But
> allowing malicious code to creep in through one's own email and browser is
> not a sign of good design.  Certificates have pretty much proven to be
> worthless in that respect.

But the OS should allow buggy code and *still* protect the
rest of the system from intrusions of this sort.  I suspect
the problem with windows is the user is "effectively" root
(even if not running as "Administrator", if all of *your*
executables have been "contaminated", *your* computing
experience is tainted by them!

> "Undocumented" features don't help either.   
> 
> --Chuck
> 
> 
> 
>