Quantum Distributed Ledger Consensus Against Quantum Attacks
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Solution Overview
Problem
Current distributed ledgers are vulnerable to quantum computers due to their reliance on 'proof-of-work' consensus protocols that can be exponentially solved by quantum computers, compromising security and immutability.
Innovation Solution
Implement a quantum-based distributed ledger system using an 'N'-qubit processor to solve algorithmic problems that standard processors cannot solve within a predetermined time, incorporating quantum-resistant encryption and adjusting problem difficulty dynamically to maintain security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If proof-of-work consensus protocols are used in distributed ledgers, then security and immutability are maintained, but the system becomes vulnerable to quantum computers that can exponentially solve the algorithms
Solution Approach 1:
The patent changes the computational parameter from classical algorithms to quantum algorithms. Specifically, it uses quantum-resistant hash functions and quantum cryptographic primitives that are designed to be secure against quantum computers. The system transitions from using classical proof-of-work algorithms to quantum-based consensus mechanisms that leverage quantum computational properties while maintaining security.
Solution Approach 2:
The patent replaces the classical computational mechanism with a quantum mechanical mechanism. Instead of using standard cryptographic algorithms that can be broken by quantum computers, the system employs quantum cryptographic protocols and quantum-resistant algorithms that are fundamentally different in their computational basis, using quantum properties like superposition and entanglement to achieve security.
2Speed
If quantum computers are used to solve algorithmic problems, then computational speed and capability are enhanced, but the ability to maintain ledger security is compromised
Solution Approach 1:
The patent converts the threat of quantum computers into a benefit by using quantum algorithms for consensus. Instead of resisting quantum computing with classical algorithms, the system embraces quantum computation by using quantum-resistant cryptographic protocols and quantum-based proof-of-work that are specifically designed to be secure against quantum attacks while leveraging quantum computational capabilities.
Solution Approach 2:
The patent changes the computational paradigm from classical to quantum. It uses quantum hash functions, quantum cryptographic signatures, and quantum-based consensus algorithms that operate on quantum states. This parameter change ensures that the computational speed advantage of quantum computers is harnessed for legitimate consensus operations while maintaining security through quantum-resistant cryptographic design.
3Reliability
If algorithmic problems are made more difficult to solve, then quantum computer vulnerability is reduced, but the time required to solve problems increases
Solution Approach 1:
The patent changes the complexity parameter by using quantum algorithms that have different computational complexity characteristics. Quantum algorithms can solve certain problems exponentially faster than classical algorithms, but the patent uses quantum-resistant cryptographic primitives that maintain appropriate difficulty levels. The system adjusts the computational difficulty parameter to ensure quantum security while maintaining acceptable transaction times through optimized quantum algorithm selection.
Solution Approach 2:
The patent introduces dynamic adjustment of algorithmic difficulty parameters. The system can adaptively select and adjust the complexity of quantum consensus algorithms based on network conditions, hardware capabilities, and security requirements. This dynamic parameter adjustment allows the system to maintain quantum resistance while optimizing for transaction speed and time efficiency.
Data Source
AI summary
Apparatus and methods for quantum-computing based distributed ledgers are provided. A distributed ledger program on a computer system with a standard processor and an “N”-qubit processor may receive a request to add data to the distributed ledger from a user. The computer system may then solve one or more algorithmic problems on the “N”-qubit processor. The solution may be received and determined to be correct. When the solution is correct, one or more fungible tokens may be transmitted to the user. When the solution is correct and compensation received from the user, the data may be added to the distributed ledger, and the ledger may be updated across all systems running the ledger.