The KG-84A and KG-84C are encryption devices developed by the U.S. National Security Agency (NSA) to ensure secure transmission of digital data. The KG-84C is a Dedicated Loop Encryption Device (DLED), and both devices are General-Purpose …

KG-84 is a dedicated loop encryption device for digital data, developed in the early 1980s by the US National Security Agency (NSA), for use by the American Department of Defense (DoD) and by NATO.

It used electronic shift registers instead of rotors and became very popular (for a COMSEC device of its era), with over 14,000 units produced. It was replaced in the 1980s by the more compact KG-84, which in turn was superseded by the KG-84-interoperable KIV-7.

KG-84 provided significant improvements in reliability, key variable distribution, and security over existing equipment. The incorporation of large-scale integration (LSI) technology allowed the KG-84 to realize a substantial reduction in size, weight, and power consumption requirements.

Military digital line encryptor The KG-84 is an electronic encryption device developed by the National S. curity Agency (NSA) in the USA. It was used for ensuring secure transmission of digital data over a variety of networks, such as landlines, satellites, . icrowave links and Telex lines. The KG-84 was built by Pul.

The KG-84A and KG-84C are encryption devices developed by the U.S. National Security Agency (NSA) to ensure secure transmission of digital data. The KG-84C is a Dedicated Loop Encryption Device (DLED), and both devices are General-Purpose …

The KG-84 is an electronic encryption device developed by the National Security Agency (NSA) in the USA. It was used for ensuring secure transmission of digital data over a variety of networks, such as landlines, satellites, microwave links and Telex lines.

The KG-84 (A/C) is a Controlled Cryptographic Item (CCI) and is unclassified when unkeyed. Keyed KG-84 equipment assumes the classification level equal to that of the keying material used.

This view shows the KG-84C battery compartment. (Photo courtesy of APlus Surplus)

Nov 13, 2001 · APPENDIX A KIV-7 EMBEDDABLE KG-84 COMSEC MODULE 1. General. The KIV-7 is a compact COMSEC device designed to protect digital data communications links at rates up to 512 kbps. It is compatible with the KG-84 family of encryption devices in the secure data and OTAR modes.