Secure Transaction Unit Token Reference Register
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Solution Overview
Problem
Existing electronic payment transaction systems face challenges in ensuring the security and anonymity of token transactions, particularly in resolving errors and recovering malfunctioned transaction units without compromising anonymity, while preventing fraud and double-spending of tokens.
Innovation Solution
A secure transaction unit that manages token exchanges by using token references, which include a transaction unit group identifier, allowing for anonymous registration and error resolution, and a token reference register that stores these references to verify transactions and detect fraud, without requiring online access or revealing token ownership.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tokens are stored in a centralized blockchain/distributed ledger, then transaction verification and fraud detection are improved, but online access is required and anonymity is reduced
Solution Approach 1:
The patent introduces token references as an intermediary mechanism that enables verification without direct blockchain access. Instead of requiring participants to query the blockchain for every transaction, the system uses token references that can be verified offline or with minimal online access, acting as a mediator between the blockchain ledger and transaction participants
Solution Approach 2:
The patent segments the verification process into two parts: token issuance/registration on the blockchain and token transaction verification using references. This segmentation allows the heavy verification burden to be on the issuance phase, while subsequent transactions can be verified more efficiently using the segmented reference system
2Ease of repair
If token references include transaction unit identifiers for error resolution, then error recovery is improved, but anonymity is compromised
Solution Approach 1:
The patent applies local quality by differentiating between public and private identifiers. Token references contain public transaction unit group identifiers that enable error recovery, while private transaction unit identifiers remain hidden to preserve anonymity. This local differentiation allows the system to provide error recovery functionality in specific contexts without compromising overall anonymity
3Reliability
If cryptographic security is used for token protection, then security is improved, but transaction complexity increases
Solution Approach 1:
The patent uses cryptographic hashing to create simplified representations (copies) of complex token data. Instead of transmitting and verifying full cryptographic signatures and key pairs for every transaction, the system uses hash-based token references that maintain security while reducing transaction complexity and data transmission requirements
Data Source
AI summary
A secure transaction unit for managing payment transactions in an electronic payment transaction system, includes: means for receiving and transmitting one or more tokens to one or more other secure transaction unit in the electronic payment transaction system to cause an exchange of the one or more tokens between secure transaction units in the electronic transaction system; and means for transmitting one or more registration requests to a token reference register of the electronic transaction system. The disclosure also relates to a token reference register, an electronic transaction system, and a method for registering tokens in a token reference register.