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D. J. Bernstein  
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 More options Apr 8 2001, 11:33 pm
Newsgroups: comp.security.unix, comp.os.ms-windows.nt.admin.security
From: d...@cr.yp.to (D. J. Bernstein)
Date: 9 Apr 2001 03:23:19 GMT
Local: Sun, Apr 8 2001 11:23 pm
Subject: Re: It's becoming obvious that...
Julian T. J. Midgley <j...@xenoclast.org> wrote:

> Immediate full disclosure without prior notification or attempted
> notification of the author is self-evidently foolish.

On the contrary. Immediate full disclosure, with a working exploit,
punishes the programmer for his bad code. He panics; he has to rush to
fix the problem; he loses users.

You're whining that punishment is painful. You're ignoring the effect
that punishment has on future behavior. It encourages programmers to
invest the time and effort necessary to eliminate security problems.

> > Software can and should be structured so that the errors don't produce
> > security problems.
> Doh!  Whatever mechanism you choose for this structuring, it will
> itself be vulnerable to errors (in both design and implementation).

On the contrary. Automatic bounds checking, for example, is easy to get
right. A small amount of code, small enough to be bug-free, can protect
the entire system, if the system is structured properly.

---Dan


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