Skip to main content

AES/GCM Encryption Unit (AGU)

The AGU is built on L3Harris’ decades of heritage in spacecraft communications and encryption products. 

Our products have decades of cumulative on-orbit performance beyond mission life and have never caused a mission failure. To date, more than 100 AGU units have been delivered or are currently under contract to be delivered.

The encrypt and decrypt interfaces are separate, and packets can be simultaneously passed to the AGU for encryption and decryption. This AGU is fully compatible with the Common Communications for Visiting Vehicles protocol used on the International Space Station, as well as other AES-GCM links. A pair of AGUs can be used to secure a channel.

The AGU is a NIST 140-2 validated encryption unit using an Advanced Encryption Standard (AES) block cipher operating in Galois Counter Mode (GCM). This stand-alone unit localizes all security requirements for level 2 into one box.

Resources

  • AES/GCM Encryption Unit (AGU) Spec Sheet

    AES/GCM Encryption Unit (AGU) Spec Sheet

Related News

Rendering of NTS-3 Navigational Satellite over North America

Editorial | 08. 07. 2025

Innovative NTS-3 Navigation Satellite Readies for Launch

The NTS-3 Navigation Satellite will help chart the course for the future of global positioning, navigation and timing capabilities to address 21st century threats.

Rendering of NTS-3 Navigational Satellite over North America

Editorial | 08. 07. 2025

Innovative NTS-3 Navigation Satellite Readies for Launch

Managing the Mission: Teaching Technique to C3ISR Operators

Editorial | 05. 07. 2025

Managing the Mission: Teaching Technique to C3ISR Operators

Sky Warden at sunset

Editorial | 05. 06. 2025

Built for Tomorrow’s Fight: The Aircraft Redefining Agility, Precision and Power

Autonomous Swarms

Editorial | 11. 20. 2024

L3Harris Selected to Develop Autonomous Swarms Prototype

The Future of Tracking and Defeating Drones

Editorial | 10. 11. 2024

The Future of Tracking and Defeating Drones

Related Domains & Industries

Solutions that solve our customers' toughest challenges.
view all capabilities

Contact the AGU Team

L3Harris Space Solutions