Quantum Qubit State Readout for Non-Clonable Cryptographic Codes
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Solution Overview
Problem
The emergence of quantum computers threatens the security of current cryptographic methods, such as RSA cryptosystems, as they can potentially break these systems by exploiting quantum mechanical phenomena, leading to a loss of security advantage when quantum mechanical principles are replicated or simulated.
Innovation Solution
A quantum computer system is used to generate cryptographic applications based on quantum mechanical phenomena like superposition and entanglement, ensuring security by leveraging its unique physical properties to create non-clonable codes and keys, which are characteristic of individual systems, making replication or simulation difficult.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If quantum computers are used to break cryptographic systems, then computational speed is improved, but security is worsened
Solution Approach 1:
The patent converts the harmful effect of quantum computers breaking traditional cryptography into a benefit by using quantum mechanical phenomena (superposition and entanglement) to create fundamentally secure cryptographic systems. The same quantum properties that threaten classical cryptography become the foundation for quantum-resistant security through state preparation and measurement protocols.
Solution Approach 2:
The patent changes the fundamental parameters of cryptographic security by transitioning from classical computational hardness assumptions to quantum mechanical state properties. Instead of relying on mathematical problem difficulty, the system uses quantum state preparation parameters and measurement outcomes to generate cryptographic keys and codes that are secure against quantum attacks.
2Productivity
If quantum mechanical phenomena are replicated or simulated, then computational capability is improved, but the security advantage is lost
Solution Approach 1:
The patent applies local quality by using individual qubit state preparations with specific local properties (superposition states and entangled states) that cannot be replicated by classical systems. Each qubit's quantum state represents a unique local property that contributes to the overall cryptographic security, making the system resistant to simulation attacks.
3Ease of operation
If classical cryptographic methods are used, then ease of operation is maintained, but security against quantum attacks deteriorates
Solution Approach 1:
The patent uses quantum state copying and measurement to generate cryptographic codes. The quantum states are prepared in specific superposition and entangled states, measured to produce classical codes, and the process is repeated to generate multiple cryptographic keys and codes, maintaining ease of operation through automated quantum processes.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach provides cryptographic methods that maintain security even in the presence of quantum computers, utilizing quantum supremacy to generate unique and non-clonable random numbers and keys, enhancing security through the inherent uniqueness of quantum mechanical systems.
Implementation Method 1
Quantum computers utilize quantum mechanical principles. The quantum mechanical phenomena employed include, for example, superposition (the overlapping of qubit states) and/or quantum entanglement of qubits.
Implementation Method 2
The quantum mechanical phenomena employed include, for example, superposition (the overlapping of qubit states) and/or quantum entanglement of qubits.
Data Source
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AI summary
The invention relates to a method for using a quantum computer system (100) for a cryptographic application. A plurality of qubits (102) are prepared in respective individual intermediate states. In order to prepare the qubits (102), a preparation device (104) of the quantum computer system (100) is used, which is controlled using a set of one or more control parameters. The prepared qubits are read out and the read-out result of the prepared qubits (102) is used as a code for the cryptographic application.