Re: NSA and crypto
- From: daw@xxxxxxxxxxxxxxxxxxxxxxxx (David Wagner)
- Date: Fri, 19 May 2006 20:13:58 +0000 (UTC)
David A. Scott wrote:
But you did state at one time didn't you that its best to compress then
encrypt
I suspect you've misquoted me. I suspect it's more likely I said
something like that if you have to use compression (for whatever reason),
then it's better to compress before encrypting, not after. But there's
no security reason to compress; the main reason to compress would be to
reduce bandwidth consumption. Compressing is not necessary for security,
if you use a modern cryptosystem. Any cryptosystem that can't encrypt
uncompressed data securely is inferior and substandard, and there's no
point wasting your time on inferior systems.
.
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