This chapter focuses on the security and reliability of quantum key exchange algorithms with secure encoding. Various DNA encoding schemes have been discussed in combination with Super-increasing Knapsack codes and Fermat codes. Amalgamating more than one coding techniques increases the diffusion and confusion of the underlying communication channel, thereby adding to the overall system robustness. The impact of possible well-known attacks on the system has been critically analyzed. The results show that the proposed methodology works well with respect to the vulnerabilities under observation.
This chapter focuses on the security and reliability of quantum key exchange algorithms with secure encoding. Various DNA encoding schemes have been discussed in combination with Super-increasing Knapsack codes and Fermat codes. Amalgamating more than one coding techniques increases the diffusion and confusion of the underlying communication channel, thereby adding to the overall system robustness. The impact of possible well-known attacks on the system has been critically analyzed. The results show that the proposed methodology works well with respect to the vulnerabilities under observation.
To address the concerns posed by certain security attacks on communication protocol, this paper proposes a Quantum Key Exchange algorithm coupled with an encoding scheme based on Fermat Numbers and DNA sequences. The concept of Watson-Crick’s transformation of DNA sequences and random property of the Fermat Numbers is applied for protection of the communication system by means of dual encryption. The key generation procedure is governed by a quantum bit rotation mechanism. The total process is illustrated with an example. Also, security analysis of the encryption and decryption process is also discussed.
This paper presents the design of a communication protocol leveraging quantum error-correcting codes to enhance the reliability of quantum communication. The core idea revolves around encoding quantum information using a specific quantum error-correcting code and subsequently transmitting this encoded information. During transmission, the protocol employs error detection and correction techniques based on the chosen code to mitigate the detrimental effects of noise and decoherence, which are inherent challenges in quantum communication. The proposed protocol aims to significantly improve the robustness of quantum communication channels, a critical step towards realizing practical quantum networks and secure quantum key distribution. The theoretical framework and mathematical formulation of the protocol are presented, detailing the encoding process, error detection, and correction mechanisms. This work contributes to the growing field of quantum communication by providing a concrete design methodology for building more reliable quantum communication systems.
This paper investigates the application of quantum-inspired cryptographic protocols within the context of noisy communication channels. Traditional cryptographic methods often struggle against sophisticated attacks and are susceptible to degradation due to channel impairments. This research explores the utilization of principles derived from quantum mechanics, specifically superposition and uncertainty, to construct more resilient cryptographic schemes. The core idea is to mimic the inherent randomness and probabilistic nature of quantum systems to create protocols that are less vulnerable to conventional attacks and better equipped to handle the effects of noise. We present a framework for designing such protocols, focusing on key exchange and message encryption techniques. The proposed approach doesn't rely on actual quantum hardware but leverages mathematical models and algorithms inspired by quantum phenomena to achieve enhanced security. This work contributes to the growing field of post-quantum cryptography and offers a novel perspective on securing communication in environments where classical cryptographic assumptions may no longer hold. Specifically, we introduce a protocol based on the principle of superposition, where a key is represented as a probabilistic combination of multiple values, and a message is encoded as a superposition of possible states. The protocol incorporates a measurement process that leverages the inherent uncertainty of quantum mechanics to introduce randomness and thwart eavesdropping attempts. The proposed scheme is analyzed for its security properties, demonstrating its resilience against various attacks, including chosen-ciphertext attacks and differential cryptanalysis. The performance of the protocol is evaluated in terms of key generation time, encryption/decryption speed, and key size. The results demonstrate that the quantum-inspired protocol can achieve comparable security levels to traditional cryptographic schemes while offering improved robustness against channel noise.
Cryptography is a method of secure communication between two or more parties. The crucial step is exchanging a key in a secure manner. There are, however, two problems with conventional cryptography. First the sender and the receiver should exchange the key through highly reliable and secure channels. The second problem is that a clever eavesdropper can, by a careful analysis of the sent information, reconstruct the key. In this chapter, schemes to overcome these problems are presented. First a scheme for exchanging a key over public channels, the so-called RSA algorithm, is discussed. Then the protocols for the quantum key distribution (QKD), the Bennett–Brassard-84 (BB-84) and Bennett-92(B-92) protocols, are then presented. The QKD protocols are exclusively derived using Bohr’s principle of complementarity. An application of these ideas to the design of secure quantum money is discussed.
With the rise and development of quantum computing, there is a high scope in the development of encryption methods increasing the security and integrity of data manyfolds. To safeguard user's data, quantum safe cryptography needs to be implemented in the different aspects of transmission of data. This study takes different algorithms into account that are being used for quantum safe encryption and discusses how they can be implemented in the current industries and systems. This chapter examines quantum safe cryptography algorithms—lattice-based, hash-based, and code-based—assessing their pros and cons against quantum threats. It explores the impact on finance, healthcare, and government, and discusses implementation challenges such as performance and compatibility. The need for global standardization and collaboration for widespread adoption is also explored.
Quantum Key Distribution (QKD) systems using quantum mechanical ideas offer a secure approach for the cryptographic key exchange. In contrast, rational implementations of QKD are prone to critical defects compromising their security in practical applications in the industry. Still, some main challenges remain: the public channel exposure for the ciphertext transmission, the insecure key transfer to communication terminals, and the exposure of keys in the Quantum Distribution Channel (QCh). Side-channel exploits, intercept-resend attacks, and photon number splitting (PNS), all of which reduce the general security and efficiency of key exchange, are vulnerabilities of current symmetric QKD systems. To achieve real-time threat detection, this work presents an enhanced QKD protocol using a non-symmetric quantum channel in combination with superdense coding and a cascade splitting neural network. The non-symmetric quantum channel minimizes the sensitivity of symmetric key attacks using controlled asymmetry in the main distribution mechanism. Entanglement lets super dense coding encode two bits of information for every qubit, so increasing transmission efficiency. The research follows the quantum channel and communication terminals using a cascade splitting neural network. This system is meant to find abnormalities and probably listen in on attempts. The neural network is constructed by several layers of cascading neurons, which enables real-time risk detection and flexible response to security breaches. Numerical results obtained from simulated quantum communication networks show that the proposed protocol achieves a 27% increase in key-generating rate and a 35% decrease in transmission error rate when compared to conventional symmetric QKD protocols. Moreover, the enhanced protocol ensures a safe and consistent key exchange when quantum communication is applied by raising the 31% accuracy of eavesdropping detection. QKD has improved in terms of both security and economy by using a non-symmetric quantum channel, super dense coding, and intelligent threat detection.