Abstract: Systems, methods, and apparatus that allow a controlled unidirectional flow of information between a source network and a destination network, and do not allow a flow of information from the destination network to the source network or any other network, thereby providing an unobservable and/or undetectable destination network, accessible only by a singular permitted flow of information. In addition, transformation of the data block of information is can be performed. Other functions can be performed on the data blocks. The options for transformations and/or functions are expandable, such that options can be added or removed. Log files can be generated at one or more points. The log files can be configured to comply with a desired format and/or standard.

Abstract: A system that allows movement of information from a source network to a destination network, but prohibits movement of information from the destination network to the source network. A low-side network interface receives a request, and a low-side processor analyzes the request to determine whether it is allowable. A high-side processor denies all request and data from the destination network. In this manner, the high-side processor allows no information to flow from the destination network to the source network.