Data Stream Authentication With Indicated Supplemental Message Checks

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Solution Overview

Problem

Existing data stream authentication methods struggle with complex structures, particularly when intermediate entities modify or combine streams, leading to difficulties in verifying trustworthiness without recalculating digital signatures.

Innovation Solution

Incorporating an indication in the data stream to determine which supplemental information messages are to be considered for verification, allowing flexible trustworthiness checks without recalculating digital signatures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If supplemental information messages are included in the verification process, then the verification level is improved, but the computational effort and signaling overhead increase

Engineering Contradiction:

Improveverification levelVSAvoidcomputational effort

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent introduces a dynamic flag mechanism that allows the verification process to adaptively include or exclude supplemental information messages based on configured parameters. This enables the system to adjust the verification scope dynamically, balancing security requirements with computational resource consumption.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The verification process is segmented into mandatory components (payload packets) and optional components (supplemental information messages). By separating these segments and using a flag to control inclusion, the system can verify critical data without always processing additional optional information, reducing unnecessary computational overhead.

Inventive Principle:

Principle #1Segmentation

2Reliability

If supplemental information messages are included in the verification process, then the verification level is improved, but the bitrate of signaling overhead increases

Engineering Contradiction:

Improveverification levelVSAvoidbitrate of signaling overhead

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

Instead of always including supplemental information messages in the verification process, the patent applies local quality by selectively including only those messages where the flag indicates they are necessary. This localized approach ensures verification completeness where needed while minimizing overhead where supplemental information is not required.

Inventive Principle:

Principle #3Local quality

3Adaptability or versatility

If intermediate entities drop supplemental information messages, then the flexibility for use cases is improved, but the trustworthiness verification becomes compromised

Engineering Contradiction:

Improveflexibility for use casesVSAvoidtrustworthiness verification

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies preliminary action by establishing the verification flag and inclusion criteria before the data stream is processed. This pre-configured framework ensures that any intermediate entity dropping supplemental information messages does so with awareness of the verification requirements, and the receiver can detect such omissions through the flag-checking mechanism.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20260113200A1Authentication of Supplemental Information in Data Streams

Publication Date: 2026.04.23 FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV

AI summary

Apparatuses and methods for checking a data stream on trustworthiness are described. According to an aspect, the data stream comprises an indication which indicates whether one or more supplemental information messages are to be included into a portion of the data stream, which portion is to be used for performing a trustworthiness check of the data stream.