Archive for December, 2013

Cross-Domain Gateway Functions

Cross-Domain Gateways are a concept from multi-level government and military networks that are increasingly being deployed into traditionally flat commercial networks. I’ve spoken before about ‘trust zones‘ and the concept of choke-points between trust zones concept combined with a view of the threat exposure for each trust zone underlies the need for cross-domain gateways. (Domain is the historical term commonly used in government and military settings for zones of trust.)

There are a wide variety of applications to which cross domain gateways can be applied and a wide variety of gateway patterns and designs. However there is a common set of possible gateway functions that such patterns and designs can commonly call upon.

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