Distributed Ledger Trading System for Secure Digital Content Exchange
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In digital content transactions, there is a risk of improper sales due to time lags between content delivery and payment, leading to issues like sellers not providing content or buyers not paying, especially in crowdsourcing scenarios where content creators and clients may face difficulties in exchanging created data for value.
Innovation Solution
A trading system utilizing a distributed ledger, where crypto assets are used for payment, and secret information is encrypted, ensuring that content can only be accessed after payment confirmation through a decentralized and secure process, preventing abscondence by both buyers and sellers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If digital contents data is encrypted and permission is required for utilization, then the risk of abscondence with digital contents data is reduced, but improper trades still occur due to failure to provide usage permission or decryption key after payment
Solution Approach 1:
The patent introduces a distributed ledger as an intermediary that automatically mediates the exchange between payment and decryption key provision. The smart contract on the distributed ledger acts as an automated intermediary that holds the decryption key and releases it only when payment is confirmed, eliminating the need for manual intervention and reducing the complexity of trust management between parties.
Solution Approach 2:
The patent implements preliminary action by pre-configuring the smart contract with the decryption key and payment conditions before the actual transaction occurs. The distributed ledger is prepared in advance with the necessary cryptographic parameters and automated enforcement mechanisms, so that when the transaction executes, the exchange happens automatically without requiring additional complex coordination.
2Adaptability or versatility
If there is a time lag between provision of digital contents data and payment of value, then flexibility in transaction timing is provided, but risk of improper sales transactions increases
Solution Approach 1:
The patent implements a feedback mechanism through the smart contract that continuously monitors the transaction state. When payment is detected on the distributed ledger, the smart contract automatically feedbacks by releasing the decryption key. This automated feedback loop maintains reliability during the time lag by ensuring that the decryption key is released exactly when payment is confirmed, without requiring manual intervention.
Solution Approach 2:
The system enables self-service by allowing the smart contract to automatically manage the entire exchange process without human intervention. The distributed ledger and smart contract autonomously handle the time-lagged transaction by automatically detecting payment, verifying conditions, and releasing the decryption key, thereby maintaining reliability while providing transaction flexibility.
3Reliability
If usage permission is granted only after payment, then abscondence with digital contents data is prevented, but sellers may still fail to provide usage permission despite receiving payment
Solution Approach 1:
The patent applies self-service by enabling the smart contract to automatically execute the permission granting process. When payment is detected on the distributed ledger, the smart contract autonomously releases the decryption key without requiring the seller to manually intervene. This automated self-service mechanism ensures that payment security is maintained while eliminating the operational complexity of manual permission management.
Solution Approach 2:
The smart contract acts as an automated intermediary that stands between the payment and the decryption key release. It automatically verifies the payment condition and mediates the release of the decryption key, ensuring that sellers cannot fail to provide permission while maintaining simple operation through automation rather than manual processes.
4Reliability
If decryption key is provided after payment, then proper exchange is ensured, but complexity of key management and distribution increases
Solution Approach 1:
The patent uses the smart contract as an automated intermediary that manages decryption key distribution. The smart contract securely holds the decryption key and automatically releases it when payment conditions are met, as recorded on the distributed ledger. This intermediary approach ensures reliable exchange while reducing key management complexity by automating the distribution process and eliminating manual key handover procedures.
Solution Approach 2:
The system implements preliminary action by pre-configuring the smart contract with the decryption key and payment verification logic before transactions occur. The distributed ledger is prepared in advance with the necessary cryptographic parameters, so that when transactions execute, key management and distribution happen automatically without requiring complex ongoing manual management.
Data Source
AI summary
A trading system includes a first trading apparatus including a first processor, and a second trading apparatus including a second processor. The first processor encrypts data using secret information. The first processor publishes second trading information on a distributed ledger when first trading information enabling reception of crypto assets on a condition of publication of argument information that enables derivation of the secret information is published on a distributed ledger. The second trading information is information for receiving the crypto assets and includes the argument information. The second processor publishes the first trading information on a distributed ledger. The second processor acquires the argument information when the second trading information is published on a distributed ledger. The second processor decrypts encrypted data using the argument information.