Former products

	See also...  Tools  Our services  Background history
HSC-GK  MkFilters

HSC developed, a few years ago, two security products: a firewall software called HSC-GK, and an automatic filters generator called MkFilters. Those products have since been taken over by another company.

In 1992, HSC created the first application-level proxying firewall with authentication and identification of users, under the name HSC-GK (HSC GateKeeper).
Slides introducting the software (1996)

Here is the development history of this product:

• November 1991: The CNES (French space agency) orders a study on Internet security from HSC, study which will result in the creation of HSC-GK.
• June 1992: The telnet and FTP proxies are operationals.
• September 1992: The concept of application-level proxying with authentication and identification of users is introduced for the first time at Usenix Security.
  Prooceedings of the conference: -
• April 1993: Presentation of HSC-GK at the Unix Convention.
  Prooceedings of the conference: - (French only)
• June 1993: Integration of authentication with SecureNetKey.
• January 1994: Marketing of the product under the name HSC-GK and continuation of the development.
• October 1994: lpd proxy, graphical administration interface gk-admin.
  Presentation of gk-admin
• January 1995: X11 proxy.
• July 1995: Integration of the ActivCard authentication system.
• October 1995: traceroute, ping, whois and finger proxies.
• January 1996: HTTP proxy (Gopher, Wais, FTP), with its own authentication system.
  Presentation (French only)
• February 1996: Integration of the OPIE (One-time Password In Everything) authentication.
• Mars 1996: The gk-admin administration interface is rewritten in Tk/Perl.
• November 1996: HSC-GK was sold to Solsoft who renamed it Net Security Master then Solsoft NSM.
• June 2006: publication as a free software by Solsoft, under the GNU GPL license, then end of support at the end of 2003.
• September 2006: support and development resumed by INL then republication under the name HAL-GK.

In 1995, HSC developed Mkfilters, the first software which automated the generation of filters for routers.
Slides of a presentation of version 1 (October 1995, French only).

Version 2 came out in January 1996, then the product was sold to Solsoft , who renamed it Net Partitioner then Solsoft NP and has improved it a lot. For further information, please contact info@solsoft.com.

Solsoft has been acquired in september 2006 by Exaprotect .