Certificate/New-CSCertificate.ps1
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function New-CSCertificate { <# .SYNOPSIS Creates a new PFX certificate for the CredentialStore encryption. .DESCRIPTION Use this function to create a custom self signed certificate used by the PSCredentialStore module. .PARAMETER CRTAttribute Provide certificate related attributes provided by function New-CRTAttribute. .PARAMETER KeyName Provide a custom full path and name for the private key. The file extension has to be `*.key`. .PARAMETER CertName Provide a custom full path and name for the PFX certificate file. The file extension has to be `*.pfx` .INPUTS [PSCredentialStore.Certificate.Attribute] .OUTPUTS [None] .EXAMPLE New-CSCertificate -CRTAttribute $CRTAttribute -KeyName './myprivate.key' -CertName './mycert.pfx' .NOTES - File Name : New-CSCertificate.ps1 - Author : Marco Blessing - marco.blessing@googlemail.com - Requires : .LINK https://github.com/OCram85/PSCredentialStore #> [CmdletBinding(SupportsShouldProcess = $true)] [OutputType()] param( [Parameter(Mandatory = $true, ValueFromPipeline = $true)] [ValidateNotNullOrEmpty()] [PSTypeName('PSCredentialStore.Certificate.Attribute')]$CRTAttribute, [Parameter(Mandatory = $false)] [ValidateNotNullOrEmpty()] [string]$KeyName = './private.key', [Parameter(Mandatory = $false)] [ValidateNotNullOrEmpty()] [string]$CertName = './certificate.pfx' ) begin { $ModuleBase = Get-ModuleBase if ($isLinux -or $isMacOS) { try { $openssl = Get-Command -Name 'openssl' -ErrorAction Stop } catch { $_.Exception.Message | Write-Error $ErrorParams = @{ Message = 'Can not find the openssl binary!' ErrorAction = 'Stop' Exception = [System.IO.FileNotFoundException]::new() } Write-Error @ErrorParams } } elseif (($PSVersionTable.PSEdition -eq 'Desktop' -and $PSVersionTable.PSVersion.Major -lt 6) -or ($IsWindows -eq $true)) { $openssl = Join-Path -Path $ModuleBase -ChildPath '/Vendor/libressl255/openssl.exe' } $Env:OPENSSL_CONF = Join-Path $ModuleBase -ChildPath '/openssl.conf' } process { $SubjPattern = "/C={0}/ST={1}/L={2}/O={3}/OU={4}/CN={5}" $SubjValues = @( $CRTAttribute.Subject.Country, $CRTAttribute.Subject.State, $CRTAttribute.Subject.City, $CRTAttribute.Subject.Organization, $CRTAttribute.Subject.OrganizationalUnitName, $CRTAttribute.Subject.CommonName ) $Subj = $SubjPattern -f $SubjValues $PEMCertName = $CertName -replace '.pfx', '.crt' $ExpPattern = '& ''{0}'' req -x509 -sha256 -nodes -days {1} -newkey rsa:2048 -keyout {2} -out {3} -subj "{4}" *>$null' $ExpValues = @( $openssl, $CRTAttribute.Days $KeyName, $PEMCertName, $Subj ) $PEMExp = $ExpPattern -f $ExpValues Write-Verbose -Message ( 'Expr string is: {0}' -f $PEMExp) # Edit the Error action for the openSLL command to make the redirect *>$null work. # There is always a stderr and stdout stream! $EAP = $ErrorActionPreference $ErrorActionPreference = 'Continue' Invoke-Expression -Command $PEMExp $ErrorActionPreference = $EAP # manually testing the openssl command results if (! (Test-Path -Path $KeyName)) { $ErrorParams = @{ Message = 'Could not create the private key ${0}' -f $KeyName ErrorAction = 'Stop' Exception = [System.UnauthorizedAccessException]::new() } Write-Error @ErrorParams } if (! (Test-Path -Path $PEMCertName)) { $ErrorParams = @{ Message = 'Could not create the PEM certificate ${0}' -f $PEMCertName ErrorAction = 'Stop' Exception = [System.Exception]::new() } Write-Error @ErrorParams } $PfxPattern = '& ''{0}'' pkcs12 -export -out {1} -inkey {2} -in {3} -passout pass:' $PfxValues = @( $openssl, $CertName, $KeyName, ($CertName -replace '.pfx', '.crt') ) $PfxExp = $PfxPattern -f $PfxValues Write-Verbose -Message ( 'PfxExp string is: {0}' -f $PfxExp) Invoke-Expression -Command $PfxExp # Remove private key and crt file. Always ask user Remove-Item -Path $KeyName Remove-Item -Path ($CertName -replace '.pfx', '.crt') } end { Remove-Item Env:\OPENSSL_CONF -Confirm:$False -Force -ErrorAction SilentlyContinue } } |