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The Problem: PowerShell’s Hashing Illusion
- PowerShell lacks a reliable way to hash complex objects deterministically, causing issues in data comparison and integrity verification.
- Existing object hashing techniques in PowerShell often lead to false positives and false negatives.
- The search for a solid object hashing function in PowerShell yielded no satisfactory results, with most solutions focusing on file hashing.
- Common issues with object hashing in PowerShell include non-deterministic serialization, lack of standard approach, and performance inefficiencies.
- PowerShell's JSON-based hashing is flawed for complex objects due to issues with object structure preservation and type coercion.
- The importance of a reliable object hashing function in PowerShell is emphasized to avoid potential data discrepancies and errors.
- The DataHash class is introduced as a solution for structured and deterministic object hashing in PowerShell, addressing key limitations.
- Key features of the DataHash class include order-preserving serialization, support for complex data structures, and configurable hashing algorithms.
- The planned roadmap includes a v1.0 release of the DataHash class with enhanced capabilities and a future C# rewrite for v2.0 with parallelization.
- The v2.0 implementation aims for branch-slicing parallelization to improve hashing performance while maintaining determinism.
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