Secure Data Replication (SDR)
is the term given to several related software
development efforts at the Office of Naval
Intelligence (ONI). The overall SDR goal is to
provide an accreditable facility for passing
database changes across security barriers.
In general, a process that keeps the contents
of two database synchronized is called "replication";
SDR provides an accreditable facility for automatic
replication (no person in the loop) across a security barrier.
The Secure Data Replication facility replicates data in near real-time
across security domains. For instance, data updated in SECRET level
databases can be automatically sanitized and filtered based on content,
with the appropriate subset being replicated to a target database at
the CONFIDENTIAL level. The SDR facility is capable of fanning out
changes from a master database to multiple target databases at
different levels. It is also capable of replicating between dissimilar
database targets – either dissimilar data structures or database
engines (Oracle, Sybase, Informix, etc.).
The SDR facility was developed by LUMINTEL for the Office of Naval
Intelligence (ONI). It is coded almost entirely in Java and is
platform and database vendor independent. The SDR facility is
completely rules driven – yielding a secure replication solution that
can be configured for different databases and environments. This
facility is used with multiple databases within ONI to provide
intelligence data to partners and customers at different security
SDR Functional Overview
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