Satellite cryptographic protocol for secure aerospace communication using blockchain

ChangeBridge: Patent Apps - Networking (H04L)

Published April 2nd, 2026

Detected April 3rd, 2026

Summary

USPTO published patent application US20260095320A1 for a cryptographic protocol enabling secure aerospace communication between satellites and ground stations using blockchain-based access control and conflict-free replicated datasets. The application was filed September 20, 2024 under Application No. 18891818. The invention relates to reordering out-of-order satellite commands using causal trees and verifying access authority through blockchain blocks.

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What changed

This patent application discloses a cryptographic security protocol for aerospace communication involving satellites, ground stations, blockchain, and conflict-free replicated datasets (CRDTs). The system allows ground stations to send commands to satellites for replicating dataset state, with command ordering determined by a causal tree. Access authority to the conflict-free replicated dataset is retrieved from a blockchain block before executing operations.

This document is a patent filing with no immediate compliance implications. Aerospace manufacturers, satellite operators, and technology companies developing satellite communication systems may wish to review the claims for potential licensing considerations or to assess proximity to their own patent portfolios. No regulatory deadlines or reporting requirements are imposed.

Source document (simplified)

← USPTO Patent Applications

A CRYPTOGRAPHIC FLOW-BASED SECURITY PROTOCOL FOR AEROSPACE COMMUNICATION

Application US20260095320A1 Kind: A1 Apr 02, 2026

Inventors

Jonathan Andrew Crockett Moore

Abstract

A satellite receives, from a ground station, multiple first commands out-or-order for replicating a conflict-free replicated dataset at the satellite. An authority to access the conflict-free replicated dataset is retrievable from a block of a blockchain. The multiple first commands are reordered based on an ordering specified by a causal tree received from the ground station. A global state of the conflict-free replicated dataset is replicated locally at the satellite based on the multiple first commands reordered in accordance with the causal tree. From the ground station, multiple second commands are received for performing operations on the conflict-free replicated dataset. The operations are performed on the conflict-free replicated dataset, using the multiple second commands, based on the authority retrieved from the blockchain.