wFabricSecurity uses SHA-256 hashing to detect tampered blockchain worker nodes

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An open-source tool called wFabricSecurity, developed by William Steve Rodríguez Villamizar, verifies the integrity of Python worker files in blockchain environments before any transaction is executed. The library computes SHA-256 cryptographic hashes of critical source files and halts execution immediately if any modification is detected. It addresses security risks such as backdoor injection, silent configuration drift, and unverified smart contract execution across decentralized node fleets. Code hashes are bound to release version numbers to support on-chain auditing in Hyperledger Fabric environments. The tool is compatible with Python 3.10 and above and is available on both GitHub and PyPI.

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