Pashkevitch, V.2014-11-102014-11-102006Pashkevitch V. General organization of information technology of defence of polygraphy documents with certain size of risk of their use / V. Pashkevitch // Computer science and information technologies: proceedings of the international conference (September 28th-30th, Lviv, Ukraine) / Lviv Polytechnic National University, Institute of Computer Science and Information Technologies. – Lviv, 2006. – P. 173–177.– Bibliography: 8 titles.UDC 621.396.7.https://ena.lpnu.ua/handle/ntb/25054Functional unit scheme of technology functioning of document’s authentication is developed and represented the mathematical way of calculation the risk of usage the protected documents and methods of management by the risk.enthe risk of usage of protected documentsstatistical riskstructural riskmeasure of saturationmeasure of divisibilitylocal densitymeasure of counts similarityArticle