HIGH TECH IN EARTH SPACE RESEARCH

Unauthorized information recovery channel model

Sinyuk A.D., Ostroumov O.A.

Large amounts of information are stored in hard disk drives. In modern information systems. Deleting files using the operating system or reformatting the magnetic drive does not delete the data. There is an opportunity to recover the data by the violator in the conditions of moving the drive from the controlled premises for disposal, sending for repair, theft, replacement, substitution, donation, etc.

The known information destruction methods are not always economical and do not fully meet the reliability requirement.

The modern methods selection of information recovery is carried out. During the implementation of software methods for destroying information, the overwriting of the masking sequence above deleted information is carried out. This does not guarantee its destruction, because the motion path of the hard disk recording head does not exactly coincide with the magnetic track, and residual magnetization regions carrying information about previous records are formed at the edges.

It is assumed that the intruder owns one of the most advanced high-resolution information recovery technologies for studying the areas of residual magnetization. The technology of magnetic scanning microscopy is proposed, which is closely associated with an increase in the recording density of information on storage devices. The carried out operating principles analysis of modern magnetic scanning microscopes made it possible to create conditions for the model  development of an unauthorized information recovery channel that includes an information  source representing the drive surface and the intruder’s equipment for access to residual information. A source with an intruder connects an information transmission channel, which is proposed to be described by a model of a binary symmetric channel without memory. The erroneous recovery probability estimates of deleted information block and the errors average number in an information block are given.

The results can be recommended to specialists in the field of building subsystems to protect information from unauthorized access to information systems for the synthesis of an adequate model of the intruder, development and selection, as well as assessing the developed methods reliability for the confidential information destruction.

The subject of published articles on the nomenclature of specialties

2.2.15 Systems, networks and telecommunications (technical sciences)

2.3.1 System analysis, management and processing of information (technical sciences)

2.3.5 Mathematical and software of computing systems, complexes and computer networks (technical sciences)

2.3.6 Methods and information protection systems, information security (technical sciences)

2.5.13 Design, design and production of aircraft (technical sciences)

2.5.16 Dynamics, ballistics, the movement of aircraft (technical sciences)

Editorial board

Bobrowsky V.I.
(Ph.D., Associate Professor, Head of Department of "INTELTEH")

Borisov V.V.
(Ph.D., Professor, Actual Member of the Academy of Military Sciences, Professor, Department of Computer Science of MPEI)

Budko P.A.
(Ph.D., Professor, Department of Technical communication and automation in S.M. Budjonny Military Academy of the Signal Corps)

Budnikov S.A.
(Ph.D., associate professor, Actual Member of the Academy of Education Informatization, Head of the automated control systems Department in Russian Air Force Military Educational and Scientific Center “Air Force Academy named after Professor N.E. Zhukovsky and Y.A. Gagarin”)

Verhova G.V.
(Ph.D., Professor, Head of Department of Automation communication companies In the Bonch-Bruevich Saint Petersburg State University of Telecommunications)

Goncharevsky V.S.
(Ph.D., Professor, Honored Worker of Science and Technology of the Russian Federation, Professor of technologies and technical support and maintenance of the automated control systems in Military Space Academy of A.F. Mozhaysky)

Komashinskiy V.I.
(Ph.D., Professor, professor of processing and transmission discrete messages in the Bonch-Bruevich Saint Petersburg State University of Telecommunications)

Kirpanev A.V.
(Ph.D., Associate Professor, Head of JSC "Scientific Production Enterprise "Radar MMS")

Kurnosov V.I.
(Ph.D., Professor, Academician of Academy of Sciences of the Arctic, Academician of the International Academy of Informatization, International Academy of defense, security, law and order, corresponding member of the Academy of Natural Sciences, Senior Researcher" Open Joint Stock Company "Scientific Research Institute "Rubin")

Manuilov Y.S.
(Ph.D., Professor, Department of automated control systems space complexes in Military Space Academy of A.F. Mozhaysky)

Morozov A.V.
(Ph.D., Professor, Actual Member of the Academy of Military Sciences, Head of the Department of automated command and control systems in Military Аcademy of troops of antiaircraft defense)

Moshak N.N.
(Ph.D., Associate Professor, head of the department of "INTELTEH")

Prorok V.Y.
(Ph.D., Professor, professor of automatic control systems in Military Space Academy of A.F. Mozhaysky)

Semenov S.S.
(Ph.D., associate professor, professor of technical communication and automation in S.M. Budjonny Military Academy of the Signal Corps)

Sinicyn E.A.
(Ph.D., Professor, Head of the Research Department of JSC "The All-Russian research institute of radio equipment")

Shatrakov Y.G.
(Ph.D., Professor, Honored Worker of Science, Scientific Secretary of JSC "The All-Russian research institute of radio equipment")