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US 9,754,129 B2Granted
Data securing device, recording medium, and data securing method
AssigneeFujitsu Limited
InventorYuji Yamaoka
Life of this patent
Estimating the term…
Abstract
A data securing device according to an embodiment includes a processor that executes a process including: receiving individual data and a parameter for anonymization, using the parameter to suppress data that does not satisfy k-anonymity among data that is included in various attributes of records in the individual data, and suppressing data that is extracted from the data at random; and outputting individual data in which data is suppressed at the receiving.
Claims6
A data securing device comprising a processor that executes a process comprising:
- receiving individual data including records, a k parameter of k-anonymity and a suppression parameter that is a number of records on which data is to be suppressed;
- suppressing, according to the k parameter, data of a first attribute of a record, the data not satisfying k-anonymity with regard to the first attribute, suppressing data of the first attribute of a record that is selected at random from records that satisfy the k-anonymity with regard to the first attribute, recursively suppressing data of a second attribute of a record among the records that satisfy the k-anonymity with regard to the first attribute, the data not satisfying the k-anonymity with regard to the second attribute, and suppressing data of the second attribute of a record that is selected at random from records that satisfy the k-anonymity with regard to the second attribute;
- selecting records at random from the individual data, a number of the selected records equaling the received suppression parameter, and suppressing data on the selected records;
- and
- outputting individual data that includes the suppressed data.
2 more elements
A non-transitory computer-readable recording medium having stored therein an information processing program that causes a computer to execute a process comprising:
- receiving individual data including records, a k parameter of k-anonymity and a suppression parameter that is a number of records on which data is to be suppressed;
- suppressing, according to the k parameter, data of a first attribute of a record, the data not satisfying k-anonymity with regard to the first attribute, suppressing data of the first attribute of a record that is selected at random from records that satisfy the k-anonymity with regard to the first attribute, recursively suppressing data of a second attribute of a record among the records that satisfy the k-anonymity with regard to the first attribute, the data not satisfying the k-anonymity with regard to the second attribute, and suppressing data of the second attribute of a record that is selected at random from records that satisfy the k-anonymity with regard to the second attribute;
- selecting records at random from the individual data, a number of the selected records equaling the received suppression parameter, and suppressing data on the selected records;
- and
- outputting individual data that includes the suppressed data.
2 more elements
A data securing method comprising:
- receiving individual data including records, a k parameter of k-anonymity and a suppression parameter that is a number of records on which data is to be suppressed;
- suppressing, according to the k parameter, data of a first attribute of a record, the data not satisfying k-anonymity with regard to the first attribute, suppressing data of the first attribute of a record that is selected at random from records that satisfy the k-anonymity with regard to the first attribute, recursively suppressing data of a second attribute of a record among the records that satisfy the k-anonymity with regard to the first attribute, the data not satisfying the k-anonymity with regard to the second attribute, and suppressing data of the second attribute of a record that is selected at random from records that satisfy the k-anonymity with regard to the second attribute, using a processor;
- selecting records at random from the individual data, a number of the selected records equaling the received suppression parameter, and suppressing data on the selected records, using the processor;
- and
- outputting individual data that includes the suppressed data, using the processor.
2 more elements
Dependencies are inferred from the claim text.