Blockchain Transaction Identity Authentication and Digital Signature

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Solution Overview

Problem

Current online transaction services face safety hazards due to potential biases in intermediary behavior, false identities, high technical costs, high bit error rates, and slow transmission speeds during digital signature processes for electronic contracts.

Innovation Solution

A transaction data processing method that includes identity authentication of participants using blockchain technology, adding authentication results to transaction documents, and generating documents with digital signatures from private keys, ensuring secure and verified transactions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional digital signature methods are used for electronic contracts, then transaction processing can be completed, but security hazards arise due to potential biases in intermediary behavior and false identities

Engineering Contradiction:

Improvetransaction securityVSAvoidfalse identity and intermediary bias

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a blockchain-based intermediary mechanism that acts as a decentralized mediator between transaction parties. Instead of relying on traditional centralized intermediaries that may exhibit biased behavior, the system uses blockchain's distributed consensus mechanism to verify identities and authenticate transactions, eliminating intermediary bias while enhancing security

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent implements identity verification by creating and storing authentic identity copies on the blockchain. Rather than directly verifying physical identities, the system creates digital identity representations (identity labels) that are recorded and verified on the blockchain, preventing false identity usage while maintaining transaction efficiency

Inventive Principle:

Principle #26Copying

2Reliability

If strict identity verification is performed on transaction participants, then security is improved, but transaction processing time increases

Engineering Contradiction:

Improveidentity verification accuracyVSAvoidtransaction processing time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent performs identity verification in advance by assigning identity labels to participants before transactions occur. These pre-verified identity labels are stored on the blockchain, allowing subsequent transactions to use these pre-established credentials for rapid verification, thus maintaining security while reducing processing time

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent replaces traditional mechanical identity verification processes (manual checks, physical document verification) with cryptographic-based digital verification. Identity labels containing verification results are cryptographically signed and stored on blockchain, enabling automated verification that is both secure and time-efficient

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If blockchain technology is implemented for identity authentication, then transaction security and data integrity are enhanced, but device complexity increases

Engineering Contradiction:

Improvedata integrityVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent designs the blockchain system to serve multiple functions simultaneously: it acts as an identity verification platform, a transaction recording system, and a data integrity guarantee mechanism. By making the blockchain infrastructure multi-functional, the patent reduces the need for separate systems, thereby managing complexity while providing comprehensive security and integrity solutions

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS11570006B2Transaction data processing method, computing device, and storage medium

Publication Date: 2023.01.31 TENCENT TECHNOLOGY (SHENZHEN) CO LTD

AI summary

A transaction data processing method includes: receiving a first transaction document from a device of a transaction initiator, the first transaction document being associated with identity labels of a plurality of transaction participants; separately performing identity authentication on the plurality of transaction participants according to the identity labels of the plurality of transaction participants, to obtain an identity authentication result. The method also includes adding the identity authentication result into the first transaction document when the identity authentication results indicates identity authentication of each of the plurality of transaction participants is successful, to generate a second transaction document carrying the identity authentication result; separately transmitting a signature request for the second transaction document to devices of the plurality of transaction participants; and generating a third transaction document according to responses returned by the devices of the plurality of transaction participants in response to the signature request.