FIELD: physics.
SUBSTANCE: system comprises indicators determining whether a data unit is encrypted or decrypted. The system includes a security log necessary for storing encrypted data units. Conversion means are used to store data units in the security log, store a mask of an encrypted region from random access memory onto a disk and change the encryption indicator in the mask of the encrypted region for each stored encrypted data unit. The system includes mask changing means designed to read from the disk the stored mask of the encrypted region into random access memory, determine data units for which the encryption indicator indicates that the data units are encrypted, and the mask changing means is also designed to change the value of the encryption indicator to an opposite value.
EFFECT: protecting the mask of the encrypted region during breakdown in the system during full-disk encryption by recovering the mask of the encrypted region using the security log.
10 cl, 7 dwg
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