wFabricSecurity enforces ECDSA P-256 signatures for non-repudiation in distributed ledgers

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Developer William Steve Rodríguez Villamizar has released wFabricSecurity, an open-source Python library designed to eliminate shared-secret anti-patterns in distributed ledger systems. The library enforces public-key cryptography using ECDSA P-256, the NIST secp256r1 curve fully compatible with Hyperledger Fabric certificate authorities. It addresses key vulnerabilities including unsigned JSON payloads susceptible to man-in-the-middle attacks and the inability to trace malicious ledger mutations back to specific off-chain workers. The tool provides mathematically verifiable non-repudiation, high-speed ECDSA operations via native C bindings, and cross-language signature compatibility between Python microservices and Fabric peers written in Go or Java. Compatible with Python 3.10 and above, the library is available on both GitHub and PyPI.

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