P2P Peer Information Integrity via Distributed Ledger Signatures
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Solution Overview
Problem
Peer information in peer-to-peer (P2P) networks lacks tamper resistance and reliability, leading to potential denial of service attacks and network disruptions.
Innovation Solution
A control method is implemented by servers within a P2P management system using a distributed ledger, where transaction data including peer information and signatures is verified and stored, ensuring the integrity and up-to-date management of peer information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If peer information is stored in a centralized server, then ease of operation is improved, but reliability and tamper resistance deteriorate
Solution Approach 1:
The patent divides the centralized peer information storage into a distributed ledger system where multiple nodes maintain copies of the ledger. This segmentation eliminates the single point of failure while maintaining operational simplicity for peers who only need to read and write their own information.
Solution Approach 2:
The patent introduces a distributed ledger as an intermediary between peers and the peer information storage system. This intermediary provides tamper-resistant storage through cryptographic hashing and distributed consensus, while maintaining ease of operation by allowing peers to simply submit transactions without managing complex security infrastructure.
2Device complexity
If peer information is managed without cryptographic signatures, then device complexity is reduced, but tamper resistance deteriorates
Solution Approach 1:
The patent applies preliminary cryptographic signatures to peer information before it is stored in the distributed ledger. Each peer signs their own information with their private key, and the ledger verifies these signatures before accepting transactions. This preliminary action ensures tamper resistance without requiring complex verification mechanisms at the peer level.
Solution Approach 2:
The patent replaces complex manual verification mechanisms with automated cryptographic verification built into the distributed ledger protocol. The ledger automatically verifies signatures and maintains integrity through hash chains, eliminating the need for peers to implement complex security measures while ensuring tamper resistance.
3Ease of operation
If peer information can be freely modified, then ease of operation is improved, but reliability and data integrity deteriorate
Solution Approach 1:
The patent implements feedback mechanisms where the distributed ledger continuously verifies the integrity of stored peer information through cryptographic hashes and signatures. Any attempted modification is immediately detected and rejected by the network, providing real-time feedback that prevents data integrity loss while maintaining ease of operation for legitimate updates.
Solution Approach 2:
The patent applies preliminary anti-action by using cryptographic signatures and hash chains to prevent unauthorized modifications before they can occur. The system is designed to automatically detect and reject any tampering attempts, creating a tamper-resistant environment that preserves data integrity without restricting legitimate peer operations.
Data Source
AI summary
A control method includes: receiving transaction data that includes (i) peer information used for connecting a first peer among peers in a P2P system to another peer among the peers and (ii) a signature added to the peer information by the first peer; verifying the received transaction data using the signature included in the transaction data; and storing the transaction data into the distributed ledger when the verifying is successful.