Compressed Multi-Ciphertext Encryption for Quantum-Resistant Transmission

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Solution Overview

Problem

Current encryption methods are not resilient to quantum computer-based attacks and lack maturity, leading to inefficiencies in data transmission and organizational hierarchies, especially when sending encrypted messages to multiple recipients.

Innovation Solution

Reusing common system parameters for encryption processes, combining with sanitizable or redactable signature schemes, and employing ciphertext compression techniques to reduce data transmission by sharing one copy of parameters among multiple recipients.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional encryption methods are used for quantum resistance, then security against quantum attacks is improved, but data transmission size and communication requirements increase

Engineering Contradiction:
Improvequantum attack resistanceVSAvoiddata transmission size
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The patent combines pre-quantum and post-quantum encryption schemes into a hybrid encryption system. This merging allows the system to leverage the efficiency of traditional encryption while incorporating quantum-resistant algorithms, thereby achieving quantum attack resistance without proportionally increasing data transmission size.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The encryption system is designed to perform multiple functions simultaneously: it provides both classical security and quantum resistance, and can operate in different modes (hybrid or pure post-quantum). This multi-functionality allows flexible adaptation to different security requirements while optimizing transmission efficiency.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If new post-quantum encryption schemes are adopted, then quantum security is improved, but maturity and depth of study are reduced

Engineering Contradiction:
Improvequantum securityVSAvoidscheme maturity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent segments the encryption system into distinct components: a well-established pre-quantum encryption part and a newer post-quantum encryption part. This segmentation allows each component to be independently analyzed, tested, and optimized, leveraging the maturity of traditional schemes while incorporating emerging quantum-resistant technologies.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system performs preliminary analysis and validation of post-quantum schemes by combining them with mature pre-quantum methods first. This preliminary action allows researchers and practitioners to study and refine the newer schemes in a controlled hybrid environment before full deployment, accelerating their maturation process.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If encryption parameters are not reused across multiple recipients, then security is maintained, but communication efficiency and organizational performance decrease

Engineering Contradiction:
ImprovesecurityVSAvoidcommunication efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent merges the common parameters that can be safely reused with the recipient-specific parameters that must remain unique. By combining these in a structured hybrid encryption format, the system achieves both efficiency gains from parameter reuse and security guarantees from recipient-specific elements.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system applies different quality requirements to different parts of the encryption structure: common parameters use simpler, more efficient representations that can be reused, while recipient-specific parameters maintain higher security requirements. This local differentiation optimizes overall communication efficiency without compromising security.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP4133682B1Methods and systems for compressed encryption
Publication Date: 2026.02.11 PQSHIELD LTD
  • EP4133682B1 patent drawingFigure 1
  • EP4133682B1 patent drawingFigure 2
  • EP4133682B1 patent drawingFigure 3

AI summary

Disclosed herein are method and systems for transmitting a plurality of ciphertexts to a plurality of users. The systems and methods described herein provide for performing an encryption update comprising a plurality of encryption keys and a multi-ciphertext to a plurality of recipient nodes. Methods and systems for organizing a database are also disclosed herein.