Remote Attestation Evidence Anonymization for Privacy Protection

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing remote attestation systems risk leaking personal information during the collection of evidence data for forensic analysis, as raw data may contain user-specific information.

Innovation Solution

An anonymization processing device is integrated into a remote attestation system, comprising a personal information detection unit, anonymization processing unit, and evidence data transmission unit to identify and anonymize personal information before transmitting evidence data to the verifier device.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If evidence data is transmitted from prover device to verifier device for forensic analysis, then verification accuracy is improved, but personal information leakage risk increases

Engineering Contradiction:

Improveverification accuracyVSAvoidpersonal information leakage risk

Core Design Contradiction:

Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The patent performs anonymization processing on evidence data before transmission to the verifier device. The personal information detection unit identifies PII in advance, and the anonymization processing unit removes or masks this information before the data leaves the prover device, preventing leakage risk while maintaining verification capability

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The anonymization processing device acts as an intermediary between the prover device and verifier device. It receives evidence data from the prover, processes it to remove personal information, and then transmits the anonymized data to the verifier, mediating the information flow to protect privacy while enabling verification

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If anonymization processing is performed on evidence data, then personal information protection is improved, but processing complexity increases

Engineering Contradiction:

Improvepersonal information leakage riskVSAvoidprocessing complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The anonymization processing device is divided into distinct functional modules: a personal information detection unit that identifies PII, and an anonymization processing unit that removes or masks the identified information. This segmentation allows each module to perform its specific function independently, making the overall processing more manageable and maintainable despite the added complexity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The personal information detection unit automatically identifies personal information in the evidence data without requiring manual intervention. The system self-services by detecting and processing PII autonomously, reducing the operational complexity that would arise from manual anonymization processes

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS20260057107A1Anonymization processing device and remote attestation system

Publication Date: 2026.02.26 DENSO CORP

AI summary

An anonymization processing device used in a remote attestation system including a prover device and a verifier device is provided. The anonymization processing device includes: a personal information detection unit configured to detect whether evidence data output from the prover device contains personal information; an anonymization processing unit configured to perform anonymization processing on the personal information when the personal information is included in the evidence data; and an evidence data transmission unit configured to transmit the anonymized evidence data to the verifier device.