Present cryptography algorithms are based on mathematical problem such as factoring two large prime numbers and N vs NP problem. But computing power and evolution in mathematics increases day by day so it’s easy to reverse one way function to quickly such as that of factoring large integers. So the solution is to build a cryptosystem which secure our communication even the computing power is to high so we introduce quantum physics in cryptography which lead to evaluation of quantum cryptography. Quantum cryptography one of the emerging topics in field of computer industry. This paper is an attempt to review fundamentals of quantum cryptography and also analyses few application areas of quantum cryptography and it’s limitation.
Present cryptography algorithms are based on mathematical problem such as factoring two large prime numbers and N vs NP problem. But computing power and evolution in mathematics increases day by day so it’s easy to reverse one way function to quickly such as that of factoring large integers. So the solution is to build a cryptosystem which secure our communication even the computing power is to high so we introduce quantum physics in cryptography which lead to evaluation of quantum cryptography. Quantum cryptography one of the emerging topics in field of computer industry. This paper is an attempt to review fundamentals of quantum cryptography and also analyses few application areas of quantum cryptography and it’s limitation.
In today’s world, cryptography techniques are used and implemented on the elementary method of finding the prime factor of large integer, which is said to be “Inevitable to Track”. But living in an era where nothing is impossible to achieve, so cryptographic techniques are exposed to both technologies’ advancement in computational power of machines and advancement in the fields of mathematics to break the notion that factoring of large integers into their prime is impossible. To cope up with the threat that cryptography will face is handled by fusion of physics into cryptography, leading to the evolution of Quantum Cryptography. It is one of the fast-growing fields in computer technology. In this paper, I am going to brief the concepts of Quantum Cryptography and how this technology has led to the development of the strategy of complete secure key distribution. The paper covers the loophole present in the modern cryptography techniques, the fundamental principle of quantum cryptography, its implementation in the real world along with the limitation faced in this field, and the possible future of quantum cryptography.
In the era of information technology the need for secure communication has become increasingly important. Cryptography is a technology for creating the core of information security we use cryptography for making data secure which is the science of information protection from unauthorized interception and tempering. Most modern cryptographic studies design cryptosystems and algorithms using mathematical concepts which are based either on factorization or on discrete logarithm problem. In recent years quantum information research has lead to the discovery of a number of remarkable new paradigms for information processing and communication. These developments include quantum cryptography schemes that offer unconditionally secure information transport guaranteed by quantum-mechanical laws, which provide protection of system security, and optimization of system efficiency and detects intrusion and wiretap. Today quantum cryptography is used in various application for transferring secure data without the fear of keys being compromised. This paper reviews the various areas where quantum cryptography is successfully implemented, its advantages disadvantages & technical issues.
Quantum cryptography is a revolutionary field that applies the principles of quantum mechanics to provide secure communication channels. One of the most popular techniques in quantum cryptography is Quantum Key Distribution, which uses quantum states to deliver secure keys. The main advantage of quantum cryptography is that it offers protection against eavesdropping and tampering, which is not possible with classical encryption methods. This is because copying data in a quantum state is virtually impossible, and any attempt to intercept or manipulate the data will result in its complete alteration. As a result, any third-party interference can be detected quickly. Traditional cryptographic algorithms used in modern cryptography are vulnerable to attacks due to the evolution of quantum computers and mathematical advances in the decomposition of large integers. Therefore, the solution to address this vulnerability is to apply the principles of quantum physics to cryptography. The aim of the paper is to survey the current scientific achievements in the field of quantum cryptography and to present some challenging issues.
In the last few decades, cryptographic algorithms have been based on the fundamental operation of factoring large integers into their primes, which is considered to be “INTRACTABLE,” but contemporary cryptography is vulnerable to both technological advancements in computing power and mathematical advances that enable swift reversal of one-way functions like that of factoring large integers. Therefore, the approach is to include quantum physics into encryption, which results in an assessment of quantum cryptography. One of the newest areas in the realm of computer science is quantum cryptography. By using the principles ofquantum physics, two parties can use this important technology to protect network connections.The principles of quantum mechanics provide a theoretical foundation for highly securecommunication systems. This paper summarizes the current state of quantum cryptography,the implementation of this technology in real-world applications, and finally the direction inwhich the quantum cryptography is headed forward. Quantum cryptography (QC) is basedon two key aspects of quantum mechanics: first one is the Heisenberg Uncertainty Principleand second one is the Principle of Photon Polarization. To provide a unified perspective ofsecure communication technologies, this survey introduces a taxonomy that relates classical,modern, and quantum cryptographic paradigms and classifies major quantum cryptographicprimitives, protocols, and emerging quantum networking technologies.
Modern encryption methods are built upon the fundamentally “uncomfortable” process of computing huge integers to their primes. However, current cryptography is vulnerable to both increases in processing power and the emergence of quickly reversing huge integer factorization in mathematics. Therefore, incorporating quantum physics into encryption is the solution, which leads to an assessment of quantum cryptography. The field of cryptography and security is undergoing significant change as a result of the potential of scalable quantum computing. In this theoretical paper, the authors examine the development of quantum computing. The authors continue by listing the current threats to cryptographic primitives. Readers can deduce knowledge of a variety of topics from this review article, including risks posed by quantum technologies to traditional cryptography, modern cryptography – private key cryptography, post-quantum cryptography, quantum key distribution, and effects on hash functions and post-quantum cryptography.
In this modern era, most cryptographic algorithms work on a basic principle to split integers into their primes. But the problem is that mathematics is also evolving at a very fast pace along with computing power so it is now more vulnerable to decryption, for example, one-way functions can be easily reversed along with factoring big integers. So, to solve this issue Quantum Physics gets involved with cryptography which further led to the concept of Quantum Cryptography. Quantum Cryptography is one of the fastest-growing technology in computer science. So, this paper is more focused on Quantum Cryptography technology and how it can be used to make our modern cryptographic era safeguard from top to bottom procedure related to getting more secure Key-transfer. This paper's scope is to cover all the vulnerabilities of the current cryptosystem, the uses of this technology in the real-world scenario, the limitations when used in real-world situations, and also what will be the future of Quantum Cryptography and the path it should head towards. We have tried to use tools and protocols which is modified to use the quantum key transfer by which the user's using it will not have access to each other's personal information, instead of sharing any private or public key in advance, we transfer an unordered quantum transmission which consists of a very little flash of polarized light.