Wojciech S. Czarnecki wrote:
Dnia Wed, Feb 17, 2010 at 09:32:20PM +0100, Roland Bock napisał(a):
I am aware that I am using the same IV for all arguments, but still I
CFB mode depends of unique IV.
The encrypted results are almost identical.
CFB mode "turns on" for at least two data blocks.
Your data seems to be of block size or less.
So your CFB de facto becomes ECB.
would have expected similar input would NOT result in similar output. I
For same IV and same key certainly it does. We use advanced modes
and random IVs to prevent this.
Hi, yes, got that. But ECB yields totally different results for similar
texts (I am talking about texts shorter than the block size).
Regards,
Roland
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