Re: crypto accelerators

From: Bruce M Simpson <bms@xxxxxxx>
Date: Tue, 18 Apr 2006 20:10:15 +0100

On Mon, Apr 17, 2006 at 04:44:38PM -1000, Dave Cornejo wrote:

So the question is whether these cards, regardless of their affect on
throughput, increase usable CPU cycles? I have several Soekris 1401
cards and am wondering if there would be any point to putting them
into some machines that provide logins over ssh. These machines are
generally pretty good spec, 2.4GHz+, 1GB RAM, Intel MBs, mostly
on-board peripherals.

Given that spec of machine, I don't see that a hardware cipher would
offer much improvement -- and some of the available crypto accelerators
don't perform Diffie-Helmann or AES, some do.

I myself have a ubsec(4) card, and even when I hacked OpenSSH to use
OpenSSL engine support by default (with someone else's patch), I didn't
see that much improvement (even when I forced the use of MD5, RSA and
3DES).

I could be wrong though - the above is qualitative not quantitative.

Regards,
BMS
_______________________________________________
freebsd-net@xxxxxxxxxxx mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-net
To unsubscribe, send any mail to "freebsd-net-unsubscribe@xxxxxxxxxxx"

Follow-Ups:
- Re: crypto accelerators
  - From: Dave Cornejo

References:
- crypto accelerators
  - From: Dave Cornejo

Prev by Date: Re: Libpcap based: packet generator + capture file editor + bridge for IEEE802.3 on FreeBSD
Next by Date: Re: New version of iwi(4) - Call for testers [regression!]
Previous by thread: crypto accelerators
Next by thread: Re: crypto accelerators
Index(es):
- Date
- Thread

Relevant Pages

Re: OT: A funny thing happend to me at an Indian casino . . .
... These machines are not the same type of video poker machines found in Vegas and other
casinos. ... In order to legally operate slot machines or "video poker" in an Indian casino
in Florida, all machines have to be hooked up to a bingo-based single random number generator, where
all players are competing against themselves. ... you and your wife must have hit deal
at exactly the same time. ... We'll hold the cards we want, then compare the strength of
what we have against each other: higher hand draws first, weaker hand draws second. ... (alt.vacation.las-vegas)
Re: Multiple DirectShow Window problems
... ATI cards in two otherwise identical machines. ... > The classic
renderer might be another option. ... (microsoft.public.win32.programmer.directx.video)
Re: Job of Census enumerators in the 19th century - not much has
... As for the census being the first where machines were first used, ... certainly
seen mention that it was the first where punched cards were used. ... Apparently this was
first done by Hollerith in the 1890 US Census where the ... schedules into his Enumeration
Book from which the census tables were then ... (soc.genealogy.britain)
debian 2.1 newbie
... Question concerns winmodems, XP machines with 2 hard drives, modern video ...
I also got 2 new machines that run XP with fancy video cards like ... (alt.linux)
Re: Verizon Aircard Software disables Ethernet port?
... but the newer cards and software intentionally kill any ... so you can't share
the data stream with other machines (ie the ... disable any networking it sees...
... No aircard will go in my machines, ... (alt.cellular.verizon)