In the healthcare cyber, the transmission of information between the head office and each sub-branch has always been a very important process. However, with the continuous development of network technology in recent years, its security has also been subjected to greater and greater tests. Based on quantum image expansion technology and Grover search algorithm, this paper proposes a more secure and large-capacity secure information transmission protocol for healthcare cyber. The new protocol embeds the secret information through three layers and encrypts it at the same time. Finally, the secret information is transmitted through quantum channel in the form of quantum state, which has very high security. At the same time, the new protocol is essentially a novel quantum image steganography protocol. The imperceptibility of the steganography protocol is essentially a higher level of security, which can effectively avoid various attacks and further guarantee the security of the information transmission process.
In the healthcare cyber, the transmission of information between the head office and each sub-branch has always been a very important process. However, with the continuous development of network technology in recent years, its security has also been subjected to greater and greater tests. Based on quantum image expansion technology and Grover search algorithm, this paper proposes a more secure and large-capacity secure information transmission protocol for healthcare cyber. The new protocol embeds the secret information through three layers and encrypts it at the same time. Finally, the secret information is transmitted through quantum channel in the form of quantum state, which has very high security. At the same time, the new protocol is essentially a novel quantum image steganography protocol. The imperceptibility of the steganography protocol is essentially a higher level of security, which can effectively avoid various attacks and further guarantee the security of the information transmission process.
Quantum image steganography is one of the important research branches of quantum secure communications. In this paper, a large payload quantum image steganography protocol based on quantum image expansion and the Grover search algorithm is proposed. The new algorithm adopts quantum log-polar image (QUALPI) representation to prepare the quantum image before introducing a quantum expansion technique to form the superposition of multiple image copies with the same size angle difference as the carrier. Then, it embeds a secret message into one quantum image copy with a specific rotation angle encoded. In order to accurately extract the secret message embedded, the Grover search algorithm is used to locate the correct quantum image copy. Based on the quantum uncertainty and quantum non-cloning theorems, the new algorithm can not only achieve good imperceptibility and security but also large payload due to the algorithm's good coding scalability. The experimental results by performing MATLAB simulation prove the conclusions.
Abstract Quantum steganography is an advanced method of hiding information within quantum systems, leveraging the unique properties of quantum mechanics-such as superposition, entanglement, and the no-cloning theorem-to achieve unbreakable secrecy. Quantum steganography provides perfect secrecy against both classical and quantum hacking, making it a cutting-edge technology in cybersecurity. This paper introduces a quantum steganography technique that builds on the advantages of of Novel Enhanced Quantum Representation (NEQR) of digital imaging and integrates quantum-resistant solutions for secure (biometric) transmission, anti-spoofing, and privacy-preserving authentication. Our analysis and experiments have shown that our approach is robust against several types of attacks, and offers protection against both current and future threats while maintaining the steganographic property of imperceptibility and capacity, making it one of the best options for secret information transmission.
Using quantum cryptography can significantly support cybersecurity in healthcare, paving the way for safer digital environments. As the sector evolves, ongoing research and innovation in quantum technologies will be essential for ensuring the confidentiality and integrity of patient information, ultimately enhancing the quality of care delivered in an increasingly interconnected world. The chapter explores the evolution of quantum cryptography to strengthen cybersecurity in the healthcare sector. As reliance on digital technology increases, protecting sensitive patient information becomes more important. Quantum cryptography offers a new way to create secure communication using the principles of quantum mechanics. These briefs highlight the critical need for security measures that can prevent devastating cyber threats. The second section describes the role of quantum algorithms, particularly quantum key distribution (QKD) and quantum-resistant algorithms. QKD allows encryption keys to be exchanged securely, ensuring that any eavesdropping attempts are detected, thus preserving the integrity of communications. Quantum-resistant algorithms have also been designed to prevent quantum computer attacks that could compromise cryptographic systems. By integrating these technologies, healthcare organizations can reduce the negative impacts associated with traditional processes and protect patient information from unauthorized access to interventions and research reports. As these technologies continue to mature, their integration with healthcare systems provides an opportunity to build trust and cost-effectiveness in these digital health solutions. This integration not only increases data security but also supports the development of AI applications that can analyze large amounts of medical data. The digital environment is more secure. As the industry evolves, continued research and innovation in quantum technology will be necessary to ensure the confidentiality and integrity of patient data and ultimately improve the quality of care in an ever-changing world.
Secure remote sharing of medical images is essential for advancing telemedicine, accurate diagnostics, and collaborative healthcare delivery. The traditional cryptography techniques are fast turning to be susceptible to quantum computing risks and generally are less efficient in high throughput medical settings. To counter such a shortcoming, we present an innovative quantum-oriented solution that utilizes optimized methods of secure and real-time medical image transmission over a long-distance network. In this method, Quantum Key Distribution (BB84 protocol), hybrid cryptography, quantum informed optimization, and quantum steganography are used to provide efficient high-fidelity and low latency transmission of images. The QKD is used to securely create symmetric keys that are to be used in the AES 256 encryption of the image and Elliptic Curve Cryptography is applied so that the metadata can be kept confidential. Immutable and transparent access logs are kept by using the blockchain technology. In order to even improve the performance, a dynamically tuning encryption parameters using a Quantum Genetic Algorithm can be applied to eliminate the computing overhead. Experimental testing with NIH Chest X-ray dataset shows an average encryption and decryption speed of 38.1 milliseconds, with a success rate of more than 25% relative to the conventional post-quantum cryptographic system. The results of a secure transmission show a decrease in latency of 12.5% over the TLS-enhanced QKD. The system keeps the Quantum Bit Error Rate at less than 5% under realistic noise levels and retains more than 75% of the key material obtained. In quantum steganography, the level of accuracy to detect tampering is 98.6%, hence data integrity. The solution has shown the capability to integrate quantum-level security, computing performance, and regulatory durability to become a trusted and long-term process of safe sharing of medical images in modern healthcare systems.
In this paper, a quantum steganography protocol based on Brown entangled states is proposed. The new protocol adopts the CNOT operation to achieve the transmission of secret information by the best use of the characteristics of entangled states. Comparing with the previous quantum steganography algorithms, the new protocol focuses on its anti-noise capability for phase-flip noises, which proved its good security resisting on quantum noise. Furthermore, the covert communication of secret information in the quantum secure direct communication channel would not affect the normal information transmission process due to the new protocol's good imperceptibility. If the number of Brown states transmitted in cover protocol is many enough, the imperceptibility of the secret channel can be further enhanced. In aspect of capacity, the new protocol can further expand its capacity by combining with other quantum steganography protocols. Because the proposed protocol does not require the participation of the classic channel when it implements the transmission of secret information, it does not cause any additional information leakage and has good security. The detailed theoretical analysis shows the conclusions that the new protocol has good performance on imperceptibility, capacity and security.
Traditionally, tamper-proof steganography involves using efficient protocols to encrypt the stego cover image and/or hidden message prior to embedding it into the carrier object. However, as the inevitable transition to the quantum computing paradigm beckons, its immense computing power will be exploited to violate even the best non-quantum, i.e., classical, stego protocol. On its part, quantum walks can be tailored to utilise their astounding 'quantumness' to propagate nonlinear chaotic behaviours as well as its sufficient sensitivity to alterations in primary key parameters both important properties for efficient information security. Our study explores using a classical (i.e., quantum-inspired) rendition of the controlled alternate quantum walks (i.e., CAQWs) model to fabricate a robust image steganography protocol for cloud-based E-healthcare platforms by locating content that overlays the secret (or hidden) bits. The design employed in our technique precludes the need for pre and/or post encryption of the carrier and secret images. Furthermore, our design simplifies the process to extract the confidential (hidden) information since only the stego image and primary states to run the CAQWs are required. We validate our proposed protocol on a dataset of medical images, which exhibited remarkable outcomes in terms of their security, good visual quality, high resistance to data loss attacks, high embedding capacity, etc., making the proposed scheme a veritable strategy for efficient medical image steganography.