The government communications security community needs a fast KUTA-class encryption device which will operate at bit rates up to at least 20 MBPS and will be fully qualified to function in an airborne environment. Existing KUTA-class equipment is not specified to operate at bit rates above 10 MBPS (nominal). Other cryptographic equipment may operate at higher bit rates (up to 50 MBPS), but they do not have the KUTA attributes and are too large to implement into an airborne (missile) platform. KUTA-class encryptors cannot function as stand alone encryptors unless they are interfaced with the proper peripheral voltages and signals which are made available from an Encryption Support Package. The technical objective of this effort will be to develop a small, standardized encryption package with an internally embedded COMSEC device which is qualified to operate in an airborne environment and will provide the user with data encryption input and output functions at rates of up to 20 MBPS. This package will provide all of the necessary isolated electrical voltages and signals to support not only the internal encryptor chip but to also support necessary external peripheral equipment such as encoders and transmitters with their respective filtered power.