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← Philips
IP Encryptor
LAN Guard was an encryption/decryption system
for IP-based networks
developed in 1999 by Philips Crypto BV
in Eindhoven (Netherlands).
It allowed Local Area Networks (LANs) in different locations
to be connected together
in a secure manner via unprotected (public) TCP/IP-networks, such as
the internet.
LAN Guard is also known by its internal Philips product code UP-6362.
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The system was built around Philips' proprietary
GCD-Φ
and GCD-Φ 2000 crypto chips.
The initial version was approved for Restricted Information
(Dutch: Departementaal Vertrouwelijk), but a later version with an
improved algorithm was approved for TOP SECRET 1 information as well.
The image on the right shows a typical Philips LanGuard unit.
It is housed in a 4U 19" rack-mount case with all connections
at the rear. The case contains a standard PC motherboard with
several PCI expansion cards. A locked door at the front gives access
to the controls and LEDs.
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LanGuard was used by several customers within the Dutch Government,
including the Foreign Office and the Department of Defense. Since
its introduction in 1999 the device was upgraded and improved several
times and remained a popular solution for the protection of IP networks
for several years. In 2003, when
Philips decided to close down
Philips Crypto due to lack of revenue,
the LanGuard product family was taken over by
Compumatica in Uden (Netherlands).
Compumatica also took over support for the existing customers and
continued to produce and develop the product for several years.
After several upgrades and improvements, the product was finally
superceeded by Compumatica's in-house developed
CryptoGuard family.
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In The Netherlands known as Stg ZEER GEHEIM.
'Stg.' = Staatsgeheim (state secrect).
➤ More
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- UP-9200 - Lean Security Management Software
- UP-9201 - Security Management Software
- UP-9220 - Lean Security Management Station
- UP-9221 - Security Management Station
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At present, we have no further information about the LanGuard, nor
about its technical specifications. Please help us to expand this page
by supplying additional information.
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© Crypto Museum. Created: Sunday 10 November 2013. Last changed: Monday, 20 March 2023 - 08:30 CET.
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