Hash Performance Optimization with ParallelHash for Hyperledger Fabric Acceleration

• João Pedro Correa Crozariolo UTFPR
• Alexandre Augusto Giron UTFPR

DOI: https://doi.org/10.5753/sbseg_estendido.2025.11816

Abstract

Hyperledger Fabric’s integrity relies on hash functions, but sequential standards like SHA-2 create bottlenecks in large-data operations like ledger snapshot verification. This work investigates replacing SHA-2 with the ParallelHash family by implementing and benchmarking ParallelHash128/256 in Go, demonstrating significant throughput gains. The practical integration challenges are also analyzed, identifying hardcoded limitations in Fabric’s source code that hinder crypto agility. The findings offer a roadmap for enhancing Fabric’s performance using modern cryptographic primitives.

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