Blockchain Peer Partitioning via Cryptographic Sortition
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Solution Overview
Problem
Centralized databases face issues such as single points of failure, dependency on network connectivity, limited access, and inefficiencies in peer selection for endorsement policies in blockchain-based systems, leading to slow transaction speeds and security concerns.
Innovation Solution
Implementing a peer partitioning system using cryptographic sortition parameters to determine a set of endorser nodes that qualify an endorsement policy, thereby improving the efficiency and security of transaction proposals in blockchain networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a centralized database is used, then data management and control are simplified, but the system has a single point of failure and limited access capability
Solution Approach 1:
The patent divides the centralized database into multiple peer nodes distributed across the network. Each peer maintains a copy of the blockchain ledger, transforming the single-point architecture into a multi-point redundant system. This segmentation eliminates the single point of failure while maintaining data consistency through cryptographic hashing and consensus mechanisms.
2Reliability
If all endorser peers are contacted for transaction proposals, then endorsement policy qualification is ensured, but network traffic and processing time increase
Solution Approach 1:
The patent pre-calculates and stores the minimum set of endorser peers required to satisfy each endorsement policy before transaction submission. When a transaction proposal is submitted, the system retrieves this pre-determined subset rather than contacting all endorser peers, significantly reducing network traffic and processing time while ensuring policy compliance.
Solution Approach 2:
Instead of contacting all endorser peers in the network, the system contacts only the partial subset necessary to satisfy the endorsement policy. This partial action approach maintains reliability by ensuring sufficient endorsement coverage while reducing the excessive action of contacting every possible endorser peer.
3Ease of operation
If static endorser peer information is maintained by client applications, then peer selection can be performed, but the client application becomes heavy and requires frequent updates
Solution Approach 1:
The patent extracts the endorser peer information management functionality from the client application and relocates it to the blockchain network infrastructure. A dedicated service or smart contract maintains the current endorser peer sets and provides this information on-demand to clients, eliminating the need for clients to maintain heavy static information while preserving peer selection capabilities.
Data Source
AI summary
An example operation may include one or more of connecting, by a service discovery node, to a blockchain configured to store workloads and stakes of a plurality of endorser nodes, receiving, by the service discovery node, a discovery query that contains an endorsement policy from a user node, generating, by the service discovery node, cryptographic sortition parameters based on the endorsement policy, sending, by the service discovery node, the cryptographic sortition parameters to the plurality of the endorser nodes, collecting, by the service discovery node, sortition labels from the plurality of the endorser nodes, the sortition labels generated based on the sortition parameters, determining, based on the sortition labels, a set of the endorser nodes from the plurality of the endorser nodes that qualify the endorsement policy, and providing, by the service discovery node, identifiers of the set of the endorser nodes to the user node for an endorsement of a user transaction proposal.