Invention Grant
- Patent Title: Preventing statistical inference attacks on data that is shared among multiple stakeholders with disjoint access privileges
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Application No.: US15703331Application Date: 2017-09-13
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Publication No.: US11240243B2Publication Date: 2022-02-01
- Inventor: Nathalie Baracaldo Angel , Robert Engel , Heiko H. Ludwig
- Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Applicant Address: US NY Armonk
- Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee Address: US NY Armonk
- Agent Anthony Curro
- Main IPC: H04L29/06
- IPC: H04L29/06 ; G06F21/62 ; H04L9/32 ; G06F21/64 ; H04L9/08

Abstract:
According to one embodiment, a method, computer system, and computer program product for preventing statistical inference attacks is provided. The present invention may include splitting records into items, and classifying these items into shared items and private items; grouping the private items according to privacy and confidentiality requirements; restricting access of the private items to stakeholders based on the confidentiality requirements using cryptographic keys; generating and encrypting one or more placeholders for both existent and non-existent stakeholders; storing private items in private storage as indicated by links; creating shared records comprising links, placeholders, and shared items; adding integrity signatures to the shared records; and publishing the shared records to a shared medium.
Public/Granted literature
Information query