On Mon, 4 Feb 2008 09:33:37 -0500 (EST)
"Leichter, Jerry" <[EMAIL PROTECTED]> wrote:
> The NSA quote someone - Steve Bellovin? - has repeated comes to mind:
> Amateurs talk about algorithms. Professionals talk about economics.
> Using DTLS for VOIP provides you with an extremely high level of
> security, but costs you 50% packet overhead. Is that worth it to you?
> It really depends - and making an intelligent choice requires that
> various alternatives along the cost/safety curve actually be
> available.
>
Precisely.
Some years ago, I did a crypto design for a potential product. As best
we could figure it, the extra overhead for a standard mechanism versus
a custom one was greater than the profit margin for this product.
--Steve Bellovin, http://www.cs.columbia.edu/~smb
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