How secure is quantum cryptography

Anindita Banerjee

Sandeepak Bhandari

Security is the first priority in today digital world for secure communication between sender and receiver.Various Cryptography techniques are developed time to time for secure communication.Quantum Cryptography is one of the latest and advanced cryptography technique, it is different from all other cryptography technique and more secure.It based on the Quantum of physics since its name which make it more secure from all other cryptography and UN breakable.In this paper about quantum cryptography i.e working, limitation and advantages discussed.

Anonymous

Shalini Subramani, M. Selvi, A. Kannan +1 more

Classical cryptography is the process of hiding information and it manages the secret knowledge by encrypting the plain text message through the translation of it to an unintelligible message. Quantum cryptography is also hiding the plain text through encryption and it works based on the law of quantum physics for providing absolute security of data communication. It uses the idea of quantum mechanics to gadget a cryptographic system and the key problems are solved by intrusion detection including the Eavesdropping detection using quantum expertise. On the contrary, principles of secured communication protocol systems are demonstrated with classical quantum cryptography where the keys are distributed securely and are applied in quantum key distribution as well. In this paper, we provide a survey of works on classical cryptography and quantum cryptography and compare them with respect to time, security level and the classification of the data. Moreover, we perform a concise analysis of perspective classical cryptography and the conception of Quantum cryptography with various protocols and highlight the benefits of classical cryptography and Quantum cryptography in different applications. Finally, we provide a set of recommendations for selecting the suitable encryption model for securing the communication.

Gilles Brassard A, Norbert Lütkenhaus, Tal Mor +1 more

Anand Sharma, Vibha Ojha, Saroj Kumar Lenka

As the quantum cryptography is the ultimate solution for information security. Quantum cryptography describes the ultimate way for key distribution. Unlike many of the classical cryptosystems in use today, whose security often draws on unproven assumptions about the computational complexity of mathematical problems, the security of quantum cryptography is based on the laws of physics. The Quantum Key Distribution follows some protocols for key distribution. In this paper we describe the BB84 protocol which is used in Quantum Cryptography and the security aspect of entanglement based version of BB84.