Secure Token Transaction Unit for Restricted Offline Token Flow
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Solution Overview
Problem
Conventional electronic token transaction systems restrict offline transactions for users without an ID, excluding merchants and leading to token limits that cause transactions to be blocked, hindering the flow of monetary value within the system.
Innovation Solution
A secure token transaction unit with an offline token receiving and storage unit that allows for restricted spendability of offline tokens, enabling both users and merchants to conduct offline transactions without blocking, and includes modes for switching between online and offline token handling based on system availability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If offline token limits are imposed for risk management, then security is improved, but transaction flow is blocked
Solution Approach 1:
The patent segments the token transaction system into two distinct modes: collector mode for accumulating tokens offline without spendability restrictions, and normal mode for standard token spending operations. This segmentation allows the system to handle different transaction scenarios with appropriate security measures, preventing blocking while maintaining risk management.
Solution Approach 2:
The system dynamically switches between collector mode and normal mode based on transaction requirements and risk assessment. In collector mode, tokens are accumulated with restricted spendability; when ready for spending, the system transitions to normal mode. This dynamic adaptation resolves the contradiction by adjusting security measures according to the operational context rather than imposing static limits.
2Reliability
If offline transactions are restricted to users with ID only, then security is improved, but system versatility is reduced
Solution Approach 1:
The patent implements a universal offline transaction mechanism that works for all participants (users, merchants, companies) regardless of ID status. The collector mode provides a standardized approach for accumulating offline tokens that can be used by any entity in the system, making the offline transaction capability universal and accessible to all participant types.
Solution Approach 2:
The system introduces an intermediary mechanism where tokens are first accumulated in collector mode with restricted spendability, then later redeemed or spent through proper verification channels. This intermediary step allows unverified entities (like merchants without ID) to participate in offline transactions while maintaining security through the controlled redemption process.
3Reliability
If incoming offline transactions exceeding token limit are blocked, then risk management is improved, but monetary value flow is hindered
Solution Approach 1:
The system performs preliminary accumulation of offline tokens in collector mode without immediate spending restrictions. Tokens are gathered in advance with restricted spendability flags, allowing the system to prepare for future spending operations. This preliminary action prevents blocking by separating the accumulation phase from the spending verification phase.
Solution Approach 2:
The collector mode acts as a cushioning mechanism that absorbs incoming offline transactions without immediate risk assessment blocking. By allowing tokens to be accumulated with restricted spendability first, the system creates a buffer that prevents transaction blocking while maintaining risk management through controlled redemption processes later.
Data Source
AI summary
A secure token transaction unit includes: an offline token receiving unit configured for receiving at least one offline token of an electronic token transaction system from at least one other secure token transaction unit of the electronic token transaction system; an offline token storage unit configured for storing the received at least one offline token of the electronic token transaction system; wherein in a collector mode of the secure token transaction unit, the received offline token is stored such that its spendability is restricted.