Forked from derekmurawsky/get-sslSigningAlgorithm.ps1
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May 9, 2016 22:44
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Check for certificate signing algorithm from a web server using powershell. Based on the Test-WebServerSSL cmdlet from http://en-us.sysadmins.lv/Lists/Posts/Post.aspx?List=332991f0-bfed-4143-9eea-f521167d287c&ID=60 which is the same as https://pspki.codeplex.com/wikipage?title=Test-WebServerSSL I think. Modified with input from the Philly Powers…
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| function get-SSLSigningAlgorithm { | |
| [CmdletBinding()] | |
| param( | |
| [Parameter(Mandatory = $true, ValueFromPipeline = $true, Position = 0)] | |
| [string]$URL, | |
| [Parameter(Position = 1)] | |
| [ValidateRange(1,65535)] | |
| [int]$Port = 443, | |
| [Parameter(Position = 2)] | |
| [Net.WebProxy]$Proxy, | |
| [Parameter(Position = 3)] | |
| [int]$Timeout = 15000, | |
| [switch]$UseUserContext | |
| ) | |
| $ConnectString = "https://$url`:$port" | |
| $WebRequest = [Net.WebRequest]::Create($ConnectString) | |
| $WebRequest.Proxy = $Proxy | |
| $WebRequest.Credentials = $null | |
| $WebRequest.Timeout = $Timeout | |
| $WebRequest.AllowAutoRedirect = $true | |
| [Net.ServicePointManager]::ServerCertificateValidationCallback = {$true} | |
| try { | |
| $Response = $WebRequest.GetResponse() | |
| } | |
| catch { | |
| Write-Error $_.Exception | |
| continue | |
| } | |
| if ($WebRequest.ServicePoint.Certificate -ne $null) { | |
| $Cert = [Security.Cryptography.X509Certificates.X509Certificate2]$WebRequest.ServicePoint.Certificate.Handle | |
| $properties = @{'SignatureAlgorithm'=$Cert.SignatureAlgorithm.FriendlyName; | |
| 'CertExpiration'=$Cert.NotAfter; | |
| 'FullCert'=$Cert} | |
| $object = New-Object -TypeName PSObject -Prop $properties | |
| Write-Output $object; | |
| } else { | |
| Write-Error $Error[0] | |
| } | |
| } |
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