The StoneGate High Availability Firewall and VPN product is a single software module.
Security services of the module are provided by integrating StoneSoft developed
software with third party open source programs. IPSEC services are built using the
cryptographic software primitives contained in the SSH (IPSec Express) Toolkit. For
VPN management functions, StoneSoft has incorporated security service software from
two other software libraries, OpenSSL and OpenSSH into its product