FIELD: information security.
SUBSTANCE: group of inventions relates to protection of data recorded in storage with long-term memory, and can be used for protection of availability and security of data. Method of protecting availability and security of stored data for each information unit of plurality of reversible random conversions is selected randomly or pseudo-randomly number r one encoding rule, which is then used to code unit; received code word is broken into t parts, each of which is filled by part secret obtained on number of r using suitable separation circuit secretion, then produced parts are combined.
EFFECT: high data security.
9 cl, 20 dwg
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