NFT-Based Cross-Chain Access Granting System
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Solution Overview
Problem
The complexity of managing multiple blockchain wallet addresses across different blockchains creates a difficult user experience for decentralized applications (dApps) due to varying login processes and incompatible cryptographic software, and centralized password managers are insufficient for validating ownership across blockchains.
Innovation Solution
A system that uses a non-fungible token (NFT) as a login credential to verify user ownership across different blockchains, allowing for standardized login processes by retrieving and verifying blockchain addresses associated with the NFT, thereby enabling decentralized access to applications regardless of the underlying blockchain technology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple blockchain wallet addresses are used as login credentials across different blockchains, then user ownership verification is achieved, but device complexity and ease of operation deteriorate due to varying login processes and incompatible cryptographic software
Solution Approach 1:
The patent introduces an intermediary system that mediates between the user's blockchain wallet and the dApp. This intermediary handles the cryptographic verification process by receiving the blockchain address, verifying it against the NFT ownership, and returning a standardized authentication result. This eliminates the need for the dApp to directly implement complex blockchain-specific cryptographic verification for each blockchain type.
Solution Approach 2:
The authentication system is segmented into distinct modular components: (1) NFT ownership verification module that checks blockchain address ownership, (2) metadata retrieval module that fetches associated blockchain information, and (3) authentication module that grants access. This segmentation allows each component to handle specific tasks independently, reducing overall system complexity.
2Reliability
If blockchain-specific cryptographic software is used for each blockchain, then accurate ownership verification is achieved, but ease of operation and adaptability worsen due to incompatibility across devices and blockchains
Solution Approach 1:
The system implements a universal authentication interface that works across all blockchain types and devices. The intermediary system provides multi-functional capabilities by supporting verification for multiple blockchain networks (Ethereum, Binance Smart Chain, Polygon, etc.) through a single standardized endpoint. This allows the same authentication flow to work on desktop computers, tablets, and mobile phones regardless of the underlying blockchain.
Solution Approach 2:
The patent uses NFT metadata as a portable copy of blockchain address associations. Instead of requiring direct connection to each blockchain's cryptographic system, the metadata stored in the NFT serves as a verifiable copy that contains the necessary information to prove ownership across different blockchains. This metadata can be retrieved and verified without requiring the original blockchain environment.
3Ease of operation
If standardized login process is implemented across different blockchains, then ease of operation improves, but reliability worsens due to difficulty in verifying ownership across incompatible cryptographic systems
Solution Approach 1:
The system performs preliminary verification by checking NFT ownership before attempting cross-chain authentication. The intermediary first verifies that the user owns the NFT containing the metadata, then uses this pre-verified ownership to trust the associated blockchain addresses. This preliminary action establishes a foundation of reliability that enables subsequent simplified authentication flows.
Solution Approach 2:
The authentication system implements feedback mechanisms where the intermediary returns detailed verification results to both the user and the dApp. This feedback includes confirmation of NFT ownership, associated blockchain addresses, and authentication status. The dApp can use this feedback to make informed decisions about access granting, ensuring reliability while maintaining a simple user-facing interface.
Data Source
AI summary
According to a present invention embodiment, a system for granting access to applications associated with different blockchains comprises one or more memories and at least one processor coupled to the one or more memories. The system verifies a non-fungible token of a first blockchain is owned by a user. The non-fungible token is indicated by the user for access to an application associated with a second blockchain. Information for the second blockchain is retrieved from information for different blockchains associated with the non-fungible token. A blockchain address of the second blockchain is verified as being associated with the user based on the information for the second blockchain to grant access to the application. Embodiments of the present invention further include a method and computer program product for granting access to applications associated with different blockchains in substantially the same manner described above.