Quantum Computing And Security Of Information Systems
Free (open access)
A. A. Berezin
Quantum computing (QC) is a fundamentally new interdisciplinary idea at the interface of physics, mathematics and informatics. Today QC is still in its initial stages in terms of its practical implementation due to difficulties related with maintaining a high level of quantum coherency at the macroscopic level. However, theoretical principles of QC are presently well understood and there is a significant on-going progress towards actual prototypes of functioning QC. Present protocols of secure electronic communication can be easily cracked by QC. Thus, the advent of QC can make almost all existing systems of confidential communications utterly unreliable. The present paper gives a non-specialist overview of the principles of QC and discusses some of its possible applications, and also addresses the above challenges concerning the reliability and security of information and communication systems. Keywords: quantum computing, quantum communication systems, secure electronic communications, information generation systems, prime numbers, quantum nonlocality. 1 Introduction Security and confidentiality issues related to the generation, storage and transmission of information were invariably important in the course of history in many different ways. Before the advent of modern electronic information and communication systems, information security largely consisted in physical protection of paper-bound documents and communication channels. The science and practical tools of cryptology – methods of coding and decoding of information – constituted a significant facet of the security activity. All existing methods of cryptology, some of which go back to ancient times, rely on the fact
quantum computing, quantum communication systems, secure electronic communications, information generation systems, prime numbers, quantum nonlocality.