QUANTUM CRYPTOGRAPHY: PRINCIPLES, PROBLEMS, AND PROSPECTS
Journal Title: Інформаційні системи, механіка та керування - Year 2015, Vol 0, Issue 13
Abstract
Quantum cryptography is a relatively new but promising method for secure data transmission. Today it is believed that it can ensure the absolute secrecy of data, resulting from the principles of quantum physics, on which it is based, namely the uncertainty principle of quantum Heisenberg. According to this principle cannot measure any aspect of photons without distorting thus irrevocably different option. That is the recipient of a message knows when attempting invasion in this necessarily knows. To create a quantum communication channel often use fiber optic lines or open space in which carriers serve single photons or pairs of entangled photons are often used. Three tasks facing cryptography are: 1. Ensuring the confidentiality of messages sent via open communication channels. 2. Authentication messages that confirm the validity of the information received and sent. 3. Installing intrusion in fact, if it took place. Given the importance of information security, quantum cryptography technology will soon be available not only banks or large corporations but also individuals. Leading IT companies are in search of optimum circuit solutions that would produce industrial equipment for the transmission of confidential information available for mass use. The main obstacles for implementation of quantum cryptography methods are short distances, which can transmit information with modern facilities, high cost and cumbersome equipment. To solve these problems prompted the idea of creating a hybrid air-fiber system using satellite communications is proposed. The use of artificial satellites for the transmission of photons through the air opens the possibility of secret key clients in any part of the Earth and even beyond. It is also appropriate to review the possibility of using existing telecommunication and electrical networks for the transmission of quantum keys. The ideas p presented in the paper, open new space for scientific experiments.
Authors and Affiliations
Ілля Геннадійович Калюжний
Keywords
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