[Cryptography] Compression before encryption?

Christoph Anton Mitterer calestyo at scientia.net
Fri Jan 9 13:51:15 EST 2015

On Fri, 2015-01-09 at 13:22 +0100, Stephan Neuhaus wrote: 
> I have come across the recommendation to "compress before you encrypt", 
> on the grounds that this makes plaintext recognition through frequency 
> analysis much harder.
Compression before encryption may be used as an oracle when plain text
injection is possible...
See CRIME/BREACH attacks and the principle behind them.

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