18558240. PRIVACY PROTECTION DATA ASSOCIATION SYSTEM simplified abstract (NTT DOCOMO, INC.)
Contents
PRIVACY PROTECTION DATA ASSOCIATION SYSTEM
Organization Name
Inventor(s)
Kazuma Nozawa of Chiyoda-ku (JP)
Tomohiro Nakagawa of Chiyoda-ku (JP)
Kazuya Sasaki of Chiyoda-ku (JP)
Masayuki Terada of Chiyoda-ku (JP)
PRIVACY PROTECTION DATA ASSOCIATION SYSTEM - A simplified explanation of the abstract
This abstract first appeared for US patent application 18558240 titled 'PRIVACY PROTECTION DATA ASSOCIATION SYSTEM
The patent application describes a privacy protection data association system involving devices that store user data, including user IDs and personal information. Each device has several components:
- De-identification processing unit: Performs irreversible conversion on the user ID and privacy protection process on personal information to generate de-identified data.
- Encryption unit: Generates double-encrypted de-identified data using self-encryption and partner encryption keys without disclosing them.
- Aggregation processing unit: Compares data from two devices, aggregates the number of matching user IDs, and identifies target users.
- Disclosure limitation processing unit: Generates disclosure-limited statistical information by limiting the disclosure of aggregating results.
Potential Applications: - Data privacy protection in various industries such as healthcare, finance, and marketing. - Secure data sharing between devices without compromising sensitive information.
Problems Solved: - Ensures privacy protection while sharing data between devices. - Prevents unauthorized access to personal information.
Benefits: - Enhanced data security and privacy. - Facilitates secure data sharing and collaboration. - Compliance with data protection regulations.
Commercial Applications: Title: Secure Data Sharing System for Enhanced Privacy Protection Description: This technology can be applied in industries where data sharing is essential but privacy protection is critical, such as healthcare, finance, and marketing. It offers a secure solution for sharing sensitive information between devices while maintaining data privacy and security.
Questions about the technology: 1. How does the encryption unit ensure secure data sharing between devices? 2. What are the key advantages of using de-identification processing in the privacy protection system?
Original Abstract Submitted
In a privacy protection data association system including devices (A, B) which maintain user data including a user ID and personal information, each device includes: a de-identification processing unit () which performs an irreversible conversion process on the user ID and a privacy protection process on the personal information and generates de-identified data corresponding to the user data satisfying target user conditions; an encryption unit () which generates double-encrypted de-identified data using a self-encryption key and a partner encryption key in cooperation between its own device and a partner device without disclosing the keys; an aggregation processing unit () which compares data generated by the two devices and aggregates the number of data whose user ID parts match each other, as the number of target users; and a disclosure limitation processing unit () which generates disclosure limited statistical information by performing a disclosure limitation process for an aggregating result.
