Data Diode
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The purpose of a Data Diode is to secure information by allowing data to travel in only one direction. The Data Diode transfers data between two networks with the highest protection possible. It is physically impossible for data to be transferred in the other direction since the fiber optical connection only allows one-way communication.
The advantages of Fibersystem’s Data Diode The advantages by using Data Diode is the ability to galvanically separate between information security zones. It also gives the possibility to handle multiple levels of security zones. Due to the use of fiber optics the data transfer speed keeps to the highest possible making Data Diode the preferred solution for real-time applications. It can also be used in any ethernet application using fiber or copper connectivity.
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Data Diode – how it works
In practice a Data Diode is a component that disables the flow of data in the “wrong” direction, giving just a flow in the desired direction. In electronics a diode is a rectifier that rectifies alternating current to direct current. A Data Diode does the same – except that it goes for Data. Hence the concept of Data Diode. In the most simple example by just cutting one of the copper-leaders in copper-cable would make a Data Diode. But still the cables are inside the same plug and using the same ground lead and thereby not galvanically separated. The risk of leakage is present. By using fiber optics the leakage can be eliminated and that is why the concept of Data Diodes implies the use of fiber optics. Network separation Network separation is probably one of the most common uses of data diodes and it is also the most straight-forward example. Consider two different information security zones with different levels of security. Assume one zone handles only Open information and the other handles up to Secret information. The Open system could be a data collection service; it doesn’t contain any information which isn’t available to the public. The data itself can however be correlated either with itself or with other sets of data, and the correlation is deemed to be classified as Secret. In other words, the data in Open can, and indeed should, be sent to Secret, but no data in Secret must reach Open. To solve this, a data diode can be placed on the data link between the two information security zones. |
From military network to worldwide companies
Historically speaking, unidirectional networks have been used by almost exclusively Defense and Defense connected companies with military network. Todays need however, has led to it being used by almost all security aware industries. The constantly increasing number of cyber threats affects companies all over the globe, invoking the need of reliable data diode technology for a trustworthy network isolation. |
NEW - Fibersystem
Software Solution for transferring Data over Data Diodes in a controlled Manner more
NEW - Fibersystem
Fiber or Copper Connectivity, 100Mbit or 1Gbit, Tempest Level A, for use in 19" Rack System or in the Single Slot Unit more
