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Date:      Wed, 25 Jul 2012 20:57:30 +0200 (CEST)
From:      Wojciech Puchar <>
Subject:   geli - selecting cipher
Message-ID:  <>

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i need high speed disk encryption (many disks running in parallel, lots of 
data movement). i have processor with AES-NI.

geli give 150MB/s performance (tested from/to md ramdisk) using default 
and recommended AES-XTS

and ca 400MB/s read and 700MB/s write using AES-CBC.

I'm not cryptography expert, is CBC somehow "less secure", and if so is it 
really a problem?

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