azureVpnP2SSelfSignedCertificate.psm1
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function New-AzureVPNRootCertificate { <# .Synopsis Generates a root cert for use with an Azure point-to-site VPN. .EXAMPLE New-AzureVPNRootCert -subject 'supportAccess.remote' .NOTES Written by Ben Taylor Version 1.0, 01.04.2017 Requires Windows 10. #> [CmdletBinding(SupportsShouldProcess=$true)] [OutputType()] Param( [Parameter(Mandatory=$true)] [ValidateNotNullOrEmpty()] [String] $subject ) Write-Verbose "Creating root certificate - $subject" $rootCert = @{ Type = 'Custom' KeySpec = 'Signature' Subject = $subject KeyExportPolicy = 'Exportable' HashAlgorithm = 'sha256' KeyLength = '2048' CertStoreLocation = 'Cert:\CurrentUser\My' KeyUsageProperty = 'Sign' KeyUsage = 'CertSign' ErrorAction = 'Stop' } try { If ($Pscmdlet.ShouldProcess($subject, 'New-AzureVPNRootCertificate')) { New-SelfSignedCertificate @rootCert } } catch { Write-Error $_ } } function New-AzureVPNClientCertificate { <# .Synopsis Creates a client cert from the root cert in a local Cert Store to be used with an Azure point-to-site VPN. .EXAMPLE New-AzureVPNClientCert -subject 'supportAccess.remote' -path 'c:\export\' .NOTES Written by Ben Taylor Version 1.0, 01.04.2017 Requires Windows 10. #> [CmdletBinding(DefaultParameterSetName='certificatethumbPrint', SupportsShouldProcess=$true)] [OutputType()] Param( [Parameter(Mandatory=$true)] [ValidateNotNullOrEmpty()] [String] $subject, [Parameter(Mandatory=$true, ParameterSetName='certificateSubject')] [ValidateNotNullOrEmpty()] [String] $rootSubject, [Parameter(Mandatory=$true, ParameterSetName='certificatethumbPrint', ValueFromPipeline=$true, ValueFromPipelineByPropertyName=$true)] [ValidateNotNullOrEmpty()] [String] $thumbPrint ) try { if($psBoundParameters['rootSubject']) { $thumbPrint = (Get-ChildItem cert:\currentuser\my\ | Where-Object { $_.Subject -eq $subject }).Thumbprint } if(Test-Path cert:\currentuser\my\$thumbPrint) { $rootCertificate = Get-ChildItem -Path "Cert:\CurrentUser\My\$thumbPrint" Write-Verbose "Creating client certificate - $subject" $clientCert = @{ Type = 'Custom' KeySpec = 'Signature' Subject = $subject KeyExportPolicy = 'Exportable' HashAlgorithm = 'sha256' KeyLength = '2048' CertStoreLocation = 'Cert:\CurrentUser\My' Signer = $rootCertificate TextExtension = @("2.5.29.37={text}1.3.6.1.5.5.7.3.2") ErrorAction = 'Stop' } If ($Pscmdlet.ShouldProcess($subject, 'New-AzureVPNClientCertificate')) { New-SelfSignedCertificate @clientcert } } else { Write-Error 'No root certificate found. Please check the subject or the thumbprint' } } catch { Write-Error $_ } } function Export-AzureVPNCertificate { <# .Synopsis Allow you to export the required certs for an Azure point-to-site VPN. Filename of certificate is always the Thumb Print .EXAMPLE Export-AzureVPNCertificate -subject 'supportAccess.remote' .NOTES Written by Ben Taylor Version 1.0, 01.04.2017 #> [CmdletBinding(DefaultParameterSetName='certificatethumbPrintPfx', SupportsShouldProcess=$true)] [OutputType()] Param( [Parameter(Mandatory=$true, ParameterSetName='certificatethumbPrintPfx', ValueFromPipeline=$true, ValueFromPipelineByPropertyName=$true)] [Parameter(Mandatory=$true, ParameterSetName='certificatethumbPrintCer', ValueFromPipeline=$true, ValueFromPipelineByPropertyName=$true)] [ValidateNotNullOrEmpty()] [String] $thumbPrint, [Parameter(Mandatory=$true, ParameterSetName='certificateSubjectPfx')] [Parameter(Mandatory=$true, ParameterSetName='certificateSubjectCer')] [ValidateNotNullOrEmpty()] [String] $subject, [Parameter(Mandatory=$false, ParameterSetName='certificateSubjectPfx')] [Parameter(Mandatory=$false, ParameterSetName='certificateSubjectCer')] [Parameter(Mandatory=$false, ParameterSetName='certificatethumbPrintPfx')] [Parameter(Mandatory=$false, ParameterSetName='certificatethumbPrintCer')] [ValidateScript({ Test-Path $_ })] [String] $path = $env:TMP, [Parameter(Mandatory=$true, ParameterSetName='certificateSubjectPfx')] [Parameter(Mandatory=$true, ParameterSetName='certificatethumbPrintPfx')] [ValidateNotNullOrEmpty()] [securestring] $password, [Parameter(Mandatory=$false, ParameterSetName='certificateSubjectPfx')] [Parameter(Mandatory=$false, ParameterSetName='certificateSubjectCer')] [Parameter(Mandatory=$false, ParameterSetName='certificatethumbPrintPfx')] [Parameter(Mandatory=$false, ParameterSetName='certificatethumbPrintCer')] [switch] $removeAfterExport, [Parameter(Mandatory=$true, ParameterSetName='certificatethumbPrintPfx')] [Parameter(Mandatory=$true, ParameterSetName='certificateSubjectPfx')] [switch] $pfx, [Parameter(Mandatory=$true, ParameterSetName='certificatethumbPrintCer')] [Parameter(Mandatory=$true, ParameterSetName='certificateSubjectCer')] [switch] $cer ) try { if($psBoundParameters['subject']) { $thumbPrint = (Get-ChildItem cert:\currentuser\my\ | Where-Object { $_.Subject -eq $subject }).Thumbprint } if(Test-Path cert:\currentuser\my\$thumbPrint) { Write-Verbose 'Exporting certificate' $clientCert = Get-Item cert:\currentuser\my\$thumbPrint if($pfx) { $fileType = 'pfx' } else { $fileType = 'cer' } $fullPath = Join-Path $path ($thumbPrint + '.' + $fileType) if(-not (Test-Path $fullPath)) { if($psBoundParameters['pfx']) { $clientCert | Export-PfxCertificate -FilePath $fullPath -Password $password | Out-Null } elseif($psBoundParameters['cer']) { Set-Content -Path $fullPath -Value ([convert]::tobase64string((Get-Item cert:\currentuser\my\$thumbPrint).RawData)) -Encoding Ascii | Out-Null } [pscustomobject]@{ ThumbPrint = $thumbPrint Path = $fullPath Subject = $clientCert.subject } if($psBoundParameters['removeAfterExport'] -eq $true) { Write-Verbose 'Removing Client Certificate after export' $clientCert | Remove-Item } } else { Write-Error 'There is a cert with that name in the current path.' } } else { Write-Error 'Could not find cert in store.' } } catch { Write-Error $_ } } |