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Re: VIA Eden HW encryption support users?
Jan Klod napsal(a):
> On Tuesday 26 August 2008 22:46:19 you wrote:
>> Jan-
>>
>> I have five VIA/Centaur processor based systems from various eras (PadLock
>> rev. 1 and rev. 2 feature-sets).
>>
>> If you give me a specific scenario to work through, I can probably generate
>> at least some of the data you're looking for.
>
> At least I would like to be sure if it is a good idea to assume VIA C7 Eden
> 1.2GHz (Fanless) could give at least 30MB/s for encrypted data reading form
> HDD and sending through ssh! (if makes difference, software raid1 is planned)
>
> -
> Linux-crypto: cryptography in and on the Linux system
> Archive: http://mail.nl.linux.org/linux-crypto/
>
>
I don't know how C7 fast is but I have old C3 machine (VIA EPIA) running
as fanless firewall and did some tests on encrypted FS and SSH (sorry,
dm-crypt is already on /).
From core2 box through network via ssh to encrypted filesystem
(aes-cbc-essiv:sha256): 100% 2049MB 2.8MB/s 12:13
Reading file to /dev/null:
# dd if=some.file of=/dev/null bs=1M count=1024
1073741824 bytes (1.1 GB) copied, 203.296 s, 5.3 MB/s
kernel: 2.6.25-2-486 (debian kernel, -486 due missing long noops)
# cat /proc/cpuinfo
processor : 0
vendor_id : CentaurHauls
cpu family : 6
model : 9
model name : VIA Nehemiah
stepping : 8
cpu MHz : 666.356
cache size : 64 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr cx8 sep mtrr pge cmov pat mmx
fxsr sse rng rng_en ace ace_en
bogomips : 1334.47
clflush size : 32
# lsmod | grep padlock
padlock_aes 22848 2
crypto_blkcipher 17412 7 xts,padlock_aes,cbc,dm_crypt
RAID+SSH+ENCRYPTION and at least 30MB/s performance sounds like you need
a more faster CPU than single core 1.2GHz IMO
Hope it helps..
Z.
-
Linux-crypto: cryptography in and on the Linux system
Archive: http://mail.nl.linux.org/linux-crypto/