08-03-2017 дата публикации
Номер: KR1020170025501A
Автор:
LEE, SANG JIN,
KIM, DO HYUN,
JEONG, DOO WON,
LEE, YUN HO,
NOH, WOO SEON,
JANG, JEE WON
Принадлежит:
The present invention relates to a method for completely deleting and verifying an unused area of a storage medium. The method includes the steps of transmitting, by a device including a storage medium, a complete deletion starting flag and a first unique identifier for the storage medium to an authentication server, and acquiring information on an unused area of the storage medium and block unit information, covering, by the device, the unused area by generating a temporary file by a minimum block unit, and recording a number of the block and a success/failure log for the complete deletion; identifying, by the device, whether the size of the block is the same as the size of the unused area, and transmitting a second unique identifier for the storage medium and a complete deletion completion flag to the authentication server; and transmitting the log record to the authentication server based on whether the first unique identifier and the second unique identifier received from the authentication ...
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