Helpers/HashHelper.ps1
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#Hash functions will be used for hashing results of report #Based on SHA-256 and SHA-512 function Get-SHA256Hash { Param ( [Parameter(Mandatory=$true)] [string] $ClearString ) $hasher = [System.Security.Cryptography.HashAlgorithm]::Create('sha256') $hash = $hasher.ComputeHash([System.Text.Encoding]::UTF8.GetBytes($ClearString)) $hashString = [System.BitConverter]::ToString($hash) $hashString.Replace('-', '') } function GenerateHashTable{ Param ( [Parameter(Mandatory=$true)] [Report] $report ) #hashes for each recommendation $hashtable_sha256 = @{} foreach($recommendation in $report.Sections){ $hash_sha256 = "" foreach($section in $recommendation.SubSections){ foreach($test in $section.AuditInfos){ #hash each test status $statusHash_sha256 = (Get-SHA256Hash $test.Status) $hash_sha256 += $statusHash_sha256 #hash combination of tests $hash_sha256 = (Get-SHA256Hash $hash_sha256) } } #add final hash to hashlist $hashtable_sha256.add($recommendation.Title, $hash_sha256) } #checksum hash for overal check $overallHash_sha256 = "" foreach($hash in $hashtable_sha256.values){ #add recommendation hash to overall hash $overallHash_sha256 += $hash #hash this value again try{ $overallHash_sha256 = Get-SHA256Hash $overallHash_sha256 -ErrorAction Stop } catch{ Write-Warning "Hash code for report section couldn't be created." } } $hashtable_sha256.add($report.Title, $overallHash_sha256) return $hashtable_sha256 } |