Dual-Use Monetary Token Structure for Offline Authentication

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Solution Overview

Problem

Existing digital money systems lack security and flexibility, particularly in offline transactions, as they typically separate and manage monetary value tokens and transaction authentication tokens independently, lacking a unified data structure for both.

Innovation Solution

A dual-use token data structure that integrates both monetary value and transaction authentication tokens, allowing them to be used interchangeably in both systems, with offline transactions supported by terminals that select the appropriate token for acceptance, and includes features like access indicators and access limitators to enhance security and flexibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If monetary value tokens and transaction authentication tokens are managed separately in different systems, then each system can be optimized independently, but security and flexibility are reduced particularly in offline transactions

Engineering Contradiction:

ImprovesecurityVSAvoidseparate management structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines monetary value tokens and transaction authentication tokens into a unified token data structure that can be used across both monetary value token transaction systems and authentication token transaction systems. This merging allows a single device to function in multiple transaction types without requiring separate management infrastructures, thereby improving security through unified control while reducing the complexity of maintaining separate systems.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The token data structure is designed to be universal, enabling the same token to be used in both monetary value token transactions and authentication token transactions. This multi-functionality allows the device to operate in offline scenarios with enhanced flexibility, as the unified structure can adapt to different transaction requirements without needing separate token management for each system.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If tokens of different types are stored and managed separately, then system security is maintained through isolation, but offline transaction flexibility and performance are reduced

Engineering Contradiction:

Improveoffline transaction capabilityVSAvoidseparate token units

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges monetary value tokens and authentication tokens into a single token data structure within one device, eliminating the need for separate token units. This unified structure enables the device to perform both monetary value token transactions and authentication token transactions offline, significantly improving adaptability and versatility while reducing the complexity of managing multiple separate token storage and management systems.

Inventive Principle:

Principle #5Merging (Combining)

3Ease of operation

If a unified token data structure is used for both token types, then security and flexibility in offline transactions are improved, but the complexity of the data structure increases

Engineering Contradiction:

Improveunified managementVSAvoidcommon data structure

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent creates a universal token data structure that can represent both monetary value tokens and authentication tokens through a common format. This unified structure simplifies device operation by allowing single-token management for both transaction types, improving ease of operation. The data structure uses standardized fields and formats that can accommodate different token types without requiring complex separate management procedures, thereby reducing operational complexity despite the unified nature.

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Reliability

If separate token management is used, then transaction value integrity is easier to maintain, but offline transaction security is compromised

Engineering Contradiction:

Improvetransaction value integrityVSAvoidindependent management systems

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines monetary value token and authentication token management into a unified token data structure with centralized control mechanisms. This merging maintains transaction value integrity through consistent validation rules and state management across both token types, while simultaneously improving offline transaction security by eliminating the vulnerabilities associated with separate management systems. The unified structure ensures that token operations are atomically processed, preventing value integrity issues while enhancing security.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP4629152A1Monetary value token device

Publication Date: 2025.10.08 GIESECKEDEVRIENT ADVANCE52 GMBH

Figure 1~3

AI summary

The present invention is related to a monetary value token device including a token data structure, a provisioning method for such a device and a system including the monetary value token device. The monetary token device (10), comprises: a token data structure (14) including a monetary value token (11) of a monetary value token transaction system (6). The token data structure (14) further includes a transaction authentication token (12) of a separate authentication token transaction system (7). The token data structure (14) enables the monetary value token device (10) to be alternatively used in a transaction (101) of the monetary value token transaction system (6) or in a transaction (201) of the separate authentication token transaction system (7)