Sat Mar 5 19:55:20 UTC 2022
Based on a Pentium 3 800 MHz - 60 GB IDE drive -- UDMA (66)
Crypto Write speed % Loss Read speed =
Unencrypted 24619 kB/s -- 25273 kB/s =
AES-128bit 20880 kB/s 15.2% 8054 kB/s =
AES-256bit 17699 kB/s 28.1% 8031 kB/s =
3DES-64bit 4846 kB/s 80.3% 3334 kB/s =
3DES-192bit 4869 kB/s 80.2% 3334 kB/s =
BLOWFISH-128bit 19769 kB/s 19.7% 8029 kB/s 68.2%
BLOWFISH-256bit 19755 kB/s 19.8% 8047 kB/s 68.2%
That agrees with your slowdown estimates.
>> On Wed, Mar 12, 2003 at 05:08:49PM -0500, Greg Freemyer wrote:
>> > All,
>> > I know this is off-topic, but does anyone know where I can find info on
>> the CPU hit from using a software encrypting FS.
>> well, i'll quickly bring in some LVM stuff, as i run encryption both under
>> and ontop of a LVM-system. (different cihper though).
>> > In particular I would like to see a comparison between None, Microsoft
>> EFS, and Linux loopback encryption.
>> well, isnt EFS a FS encryption? loopback is a block encryption, there is a
>> difference. My experience is that i with loop-AES or PPDD, (blowfish as
>> cipher) gets about 1/4 to 1/3 of the performance of raw.
>> linux-lvm mailing list
>> linux-lvm at sistina.com
>> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
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