Quantum Information Encryption Using Parity-Phase Operations
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Solution Overview
Problem
Existing cryptography and computer security methods are vulnerable to man-in-the-middle attacks, particularly in quantum computing environments, where an attacker can intercept and alter quantum information without being detected.
Innovation Solution
A quantum encryption method involving parity and phase operations on qubits, combined with a secret sequence of quantum logic gates, ensures the confidentiality and integrity of quantum information by making it undetectable to eavesdroppers, even in the presence of man-in-the-middle attacks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If quantum information is transmitted without encryption, then transmission speed and simplicity are improved, but security and reliability deteriorate due to vulnerability to man-in-the-middle attacks
Solution Approach 1:
The quantum information transmission system is segmented into distinct functional components: encryption module that applies parity and phase operations, transmission module that sends qubits through quantum channels, and decryption module that reverses the operations. This segmentation allows each component to be optimized independently while maintaining overall security without excessive complexity
Solution Approach 2:
Parity qubits and phase qubits serve as intermediary elements that mediate between the original quantum information and the encryption key. These intermediary qubits enable the encryption and decryption process without requiring direct access to the secret key during transmission, thus enhancing security while managing complexity through structured interaction
2Reliability
If quantum encryption operations are applied to protect quantum information, then security and integrity are improved, but computational cost increases
Solution Approach 1:
The encryption method changes the state parameters of qubits through controlled parity and phase operations rather than applying complex unitary transformations. By manipulating discrete parameters (parity bits and phase values) rather than continuous quantum states, the computational cost is reduced while maintaining integrity protection
Solution Approach 2:
The parity qubits and phase qubits function as disposable intermediary elements that are prepared, used for encryption, and then discarded or measured. This approach replaces the need for expensive, long-lived quantum memory and complex quantum gate sequences with simpler, transient quantum states that achieve the same protective function at lower computational cost
3Reliability
If complex quantum logic gate sequences are used for encryption, then security against eavesdropping is improved, but ease of operation deteriorates
Solution Approach 1:
The encryption process employs periodic application of parity operations followed by phase operations in a fixed sequence. This periodic structure creates a regular, predictable pattern of operations that is easy to implement and verify, while the specific parameters (parity values and phase shifts) remain secret, maintaining confidentiality without requiring complex ad-hoc operations
Solution Approach 2:
The decryption process is designed as the exact inverse of the encryption process: phase operations are reversed first, then parity operations are reversed. This inversion principle ensures that the same structured sequence used for encryption can be easily inverted for decryption, maintaining ease of operation while preserving confidentiality through the secrecy of the operational parameters
4Ease of operation
If quantum information is left in original state for direct transmission, then ease of operation is improved, but vulnerability to interception increases
Solution Approach 1:
Parity operations and phase operations are applied preliminarily to the quantum information before transmission occurs. This preliminary encryption modifies the quantum state in advance, so that even if interception occurs during transmission, the intercepted information remains encrypted and useless to the eavesdropper, thus maintaining transmission simplicity while reducing vulnerability
Data Source
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AI summary
Methods, systems, and apparatus for transmitting qubits encoding quantum information with reduced risk of interception from an eavesdropper. In one aspect, a method includes encoding quantum information into an information qubit; encrypting the information qubit, comprising performing i) a parity operation on the information qubit and a parity control qubit and ii) a phase operation on the information qubit and a phase control qubit; performing, by a sender party, a sequence of one or more quantum logic gates on the phase control qubit; sending the information qubit, parity control qubit, and phase control qubit to a recipient party; and sending data identifying the sequence of one or more quantum logic gates to the recipient party, wherein the recipient party obtains the quantum information encoded into the information qubit using the information qubit, parity control qubit, phase control qubit, and data identifying the sequence of one or more quantum logic gates.