Patent ID: 11914738
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 5:
6. A data provider device for providing data for categorizing a sensitive data field in a dataset, the dataset comprising one or more records, each record of the dataset comprising a value of the sensitive data field, the data provider device comprising:
a communication interface configured for digital communication with a client device and a categorization device;
a memory configured to store the dataset;
a processor configured to:
obtain categorization data from the client device, the categorization data comprising a homomorphic encryption of a possible value of the sensitive data field and data encoding a category of the possible value;
determine, for a record of the dataset, a homomorphic encryption indicative of a difference between said possible value and a value of the sensitive data field for the record based on the homomorphic encryption of the possible value;
provide, to the categorization device, data encoding the category of the possible value and the homomorphic encryption indicative of the difference.