Public/Unprotect-Data.ps1
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function Unprotect-Data { [CmdletBinding()] param ( [Parameter(Mandatory = $true, Position = 0, ParameterSetName = "Key" )] [byte[]]$Key, [Parameter(Mandatory = $true, Position = 0, ParameterSetName = "GCM" )] [System.Security.Cryptography.AesGcm]$GCM, [Parameter(Mandatory = $true, Position = 1 )] [byte[]]$Data, [Parameter(Mandatory = $true, Position = 2 )] [byte[]]$Nonce, [Parameter(Mandatory = $true, Position = 3 )] [byte[]]$Tag ) begin { Write-Verbose "Cmdlet Unprotect-Data - Begin" } process { Write-Verbose "Cmdlet Unprotect-Data - Process" $decrypted = [byte[]]::new($Data.Length) if ($PSCmdlet.ParameterSetName -eq 'Key') { $gcm = [System.Security.Cryptography.AesGcm]::new($Key) } $gcm.Decrypt($nonce, $Data, $Tag, $decrypted) $decrypted } end { Write-Verbose "Cmdlet Unprotect-Data - End" } } |