Quantum Streaming via Encrypted Shards and Secure Cloud Channels

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current cryptographic systems are vulnerable to attacks from quantum computers, and existing quantum key distribution techniques are costly and time-consuming to implement at scale, necessitating a robust and cost-effective solution for secure data transmission.

Innovation Solution

A quantum-safe quantum streaming method that splits data into encrypted shards, transmitted over multiple secure channels using quantum-safe keys, with a quantum cloud platform acting as an intermediary for secure storage and retrieval.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If quantum key distribution (QKD) is used for secure data transmission, then security against quantum attacks is improved, but cost and implementation time increase significantly

Engineering Contradiction:
ImprovesecurityVSAvoidimplementation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the data transmission process into multiple independent secure channels, each encrypted with separate quantum-safe keys. This allows the system to achieve quantum security without requiring a single complex QKD infrastructure, instead distributing security across multiple simpler channels that can be implemented independently

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a quantum cloud platform as an intermediary service that provides quantum-safe encryption and key management capabilities. This mediator handles the complex quantum cryptographic operations in the cloud, allowing endpoint devices to access secure transmission without implementing complex QKD systems locally

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If data is split into encrypted shards and transmitted over multiple channels, then security and reliability are improved, but transmission time and complexity increase

Engineering Contradiction:
Improvedata transmission securityVSAvoidtransmission time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent divides data into encrypted shards that can be transmitted simultaneously over multiple secure channels. This segmentation enables parallel transmission, improving throughput while maintaining security through independent encryption of each shard

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent performs data splitting and encryption of individual shards as preliminary actions before transmission. By preparing encrypted shards in advance and transmitting them simultaneously over multiple channels, the system reduces overall transmission time while maintaining security

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4183099B1Quantum streaming
Publication Date: 2025.07.09 ARQIT LTD
  • EP4183099B1 patent drawingFigure 1a
  • EP4183099B1 patent drawingFigure 1b
  • EP4183099B1 patent drawingFigure 1c

AI summary

Method(s), system(s), apparatus are provided for quantum safe quantum streaming between a first endpoint device and second endpoint device via a server of a quantum cloud platform. Splitting, at the first endpoint device, a data item into a plurality of data shards that allow reconstruction of the data item. Encrypting, at the first endpoint device, each of the data shards separately using a first cryptographic key shared between the first endpoint device and the second endpoint device. Establishing, between the first endpoint device and the server, a first plurality of secure channels with the server of the quantum cloud platform using a second cryptographic key, the second cryptographic key shared between the endpoint and the server. Transmitting, from the first endpoint device to the server, the plurality of encrypted shards towards the second endpoint device via the server over the plurality of secure channels. Receiving, at the server, the plurality of encrypted data shards of the data item transmitted from the first endpoint device over the first plurality of secure channels, each data shard encrypted using the first cryptographic key known only to the first endpoint device and the second endpoint device. Securely storing, by the server, the encrypted data shards of the data item in a secure storage of the quantum cloud platform. In response to the second endpoint logging onto the quantum cloud platform, establishing a second plurality of secure channels with the second endpoint using a third cryptographic key, the third cryptographic key shared between the second endpoint device and the server. Retrieving the encrypted data shards of the data item from secure storage. Transmitting the encrypted data shards over the second plurality of secure channels to the second endpoint device. Receiving, at the second endpoint, a plurality of encrypted data shards of the encrypted data item from the server over the second plurality. Decrypting the encrypted data shards using the first cryptographic key to reconstruct the data item transferred from the first endpoint device to the second endpoint device.