Encrypted Identifier Sharing Through Privacy-Preserving Data Clean Rooms

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Solution Overview

Problem

Current digital advertising systems face challenges in securely and efficiently sharing data between different entities due to privacy concerns, making it difficult to perform data analysis such as overlap analysis without exposing sensitive customer information.

Innovation Solution

An encryption-based data clean room approach is implemented, allowing direct matching of user IDs across different data sets using shared functions and encrypted data objects, where each entity's data remains encrypted and inaccessible to others, with decryption keys held privately by the requester.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If companies share customer data directly to perform overlap analysis, then data analysis capability is improved, but data security and privacy protection deteriorate

Engineering Contradiction:
Improvedata analysis capabilityVSAvoiddata security
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent introduces a data clean room as an intermediary environment that enables overlap analysis between companies without direct data sharing. The clean room acts as a mediator where data from different companies is processed together under controlled conditions, allowing analytical capabilities while preventing direct exposure of sensitive customer information between organizations

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent creates encrypted copies of customer data that can be shared and analyzed without exposing the original sensitive information. These encrypted representations allow overlap analysis to be performed on copied data while the original data remains protected, enabling productivity improvement without compromising security

Inventive Principle:
Principle #26Copying

2Adaptability or versatility

If companies use third-party cookies to track customers, then advertising targeting capability is improved, but privacy protection deteriorates

Engineering Contradiction:
Improveadvertising targeting capabilityVSAvoidprivacy concerns
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The data clean room serves as an intermediary that enables advertising targeting through overlap analysis without requiring third-party cookies. By providing a secure environment where companies can analyze customer overlaps directly, the system eliminates the need for invasive tracking mechanisms while maintaining targeting capabilities

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the mechanical system of third-party cookie tracking with an encrypted data matching system. Instead of using cookies to monitor and track customers across websites, the system uses secure encryption and clean room technology to perform overlap analysis, substituting an invasive tracking mechanism with a privacy-preserving alternative

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS12353586B2Secure encrypted identifier data sharing
Publication Date: 2025.07.08 SNOWFLAKE INC
  • US12353586B2 patent drawing
  • US12353586B2 patent drawing
  • US12353586B2 patent drawing

AI summary

Embodiments of the present disclosure may provide a data clean room allowing encryption based data analysis across multiple accounts, including different provider database user accounts that provide user data and a network service and a requesting user that generates one or more clean room requests. The data clean room may also restrict which data may be used in the analysis and may restrict the output.