feat: Add SHA-256 validation for Win11 media artifacts - #1950
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This commit implements `Assert-Win11LabMediaArtifactSha256` in `Win11LabMediaContract.ps1` to compute and verify the SHA-256 hash of downloaded media artifacts against expected manifest checksums. It includes corresponding tests for valid matches, mismatches, missing files, and empty files. Rollback Trigger: If hash validations fail due to unexpected artifact modifications or if file hashing causes performance regressions.
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Closed in favor of PR #2085 consolidation. |
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Summary
This PR implements
Assert-Win11LabMediaArtifactSha256inWin11LabMediaContract.ps1to compute and verify the SHA-256 hash of downloaded media artifacts against expected manifest checksums, fulfilling the requirement for Operational Infrastructure script hardening.Commits
Details
scripts/windows/Win11LabMediaContract.ps1,scripts/windows/Test-Win11LabMediaContractStatic.ps1Issue
OpsInfra100/2026-09-06/ps1-windows/011
Owner
jules
Labels
type:feature, area:infrastructure
Validation
Unit tests passing successfully via
pwsh scripts/windows/Test-Win11LabMediaContractStatic.ps1checking valid file matching, mismatch throws, missing file throws, and empty file throws.Rollback trigger
Triggered if valid downloaded ISOs hash mismatched due to line-ending conversions or performance degradations due to hashing large 4GiB+ VHDs.
PR created automatically by Jules for task 4315492295834312224 started by @emersonbusson