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[Openvpn-users] Hardware acceleration

  • Subject: [Openvpn-users] Hardware acceleration
  • From: "Brenton D. Rothchild" <brothchild@xxxxxxxxxxxx>
  • Date: Thu, 8 Jan 2004 15:36:15 -0600

Hi all,

I'm trying to find a hardware acceleration solution for use with OpenVPN
I am trying to increase the throughput of established SSL tunnels without
adding more boxes / procs / etc.
We're targeting RedHat Enterprise Linux 3.0, which currently uses OpenSSL
0.9.7a (openssl-0.9.7a-22.1.*.rpm).

It looks as though there are several cards supported by the -engine and
0.9.7 releases, as well as
several vendors that have "modified" OpenSSL sources... but finding the
right card (and published
specs) has been a little difficult.

My question is, basically, does anyone have any good knowledge about a
hardware accelerator card
(PCI or PCI-X preferably) that works with OpenSSL's SSL/TLS and EVP APIs?
The SSL/TLS will accelerate
the handshake / establishment phase of building an OpenVPN tunnel, but I
need the EVP interface
to accelerate throughput of the tunnel itself.  Any information would be
great, but numbers on
how much acceleration a particular card could do would be even greater :)


Brenton D. Rothchild      Secured Digital Storage, Inc.  Office: (515)
244-6290 x205
Senior Systems Architect  104 SW 4th St.                 Cell  : (515)
				  Des Moines, IA  50309          Email :

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