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Test SSL Protocols
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<# | |
.DESCRIPTION | |
Outputs the SSL protocols that the client is able to successfully use to connect to a server. | |
.PARAMETER ComputerName | |
The name of the remote computer to connect to. | |
.PARAMETER Port | |
The remote port to connect to. The default is 443. | |
.EXAMPLE | |
Test-SslProtocol -ComputerName "www.google.com" | |
ComputerName : www.google.com | |
Port : 443 | |
KeyLength : 2048 | |
SignatureAlgorithm : rsa-sha1 | |
Ssl2 : False | |
Ssl3 : True | |
Tls : True | |
Tls11 : True | |
Tls12 : True | |
.NOTES | |
Copyright 2014 Chris Duck | |
http://blog.whatsupduck.net | |
Licensed under the Apache License, Version 2.0 (the "License"); | |
you may not use this file except in compliance with the License. | |
You may obtain a copy of the License at | |
http://www.apache.org/licenses/LICENSE-2.0 | |
Unless required by applicable law or agreed to in writing, software | |
distributed under the License is distributed on an "AS IS" BASIS, | |
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
See the License for the specific language governing permissions and | |
limitations under the License. | |
#> | |
function Test-SslProtocol { | |
param( | |
[Parameter(Mandatory=$true,ValueFromPipelineByPropertyName=$true,ValueFromPipeline=$true)] | |
$ComputerName, | |
[Parameter(ValueFromPipelineByPropertyName=$true)] | |
[int]$Port = 443 | |
) | |
begin { | |
$ProtocolNames = [System.Security.Authentication.SslProtocols] | | |
Get-Member -Static -MemberType Property | | |
Where-Object -Filter { $_.Name -notin @("Default","None") } | | |
Foreach-Object { $_.Name } | |
} | |
process { | |
$ProtocolStatus = [Ordered]@{} | |
$ProtocolStatus.Add("ComputerName", $ComputerName) | |
$ProtocolStatus.Add("Port", $Port) | |
$ProtocolStatus.Add("KeyLength", $null) | |
$ProtocolStatus.Add("SignatureAlgorithm", $null) | |
$ProtocolNames | %{ | |
$ProtocolName = $_ | |
$Socket = New-Object System.Net.Sockets.Socket( ` | |
[System.Net.Sockets.SocketType]::Stream, | |
[System.Net.Sockets.ProtocolType]::Tcp) | |
$Socket.Connect($ComputerName, $Port) | |
try { | |
$NetStream = New-Object System.Net.Sockets.NetworkStream($Socket, $true) | |
$SslStream = New-Object System.Net.Security.SslStream($NetStream, $true) | |
$SslStream.AuthenticateAsClient($ComputerName, $null, $ProtocolName, $false ) | |
$RemoteCertificate = [System.Security.Cryptography.X509Certificates.X509Certificate2]$SslStream.RemoteCertificate | |
$ProtocolStatus["KeyLength"] = $RemoteCertificate.PublicKey.Key.KeySize | |
$ProtocolStatus["SignatureAlgorithm"] = $RemoteCertificate.SignatureAlgorithm.FriendlyName | |
$ProtocolStatus["Certificate"] = $RemoteCertificate | |
$ProtocolStatus.Add($ProtocolName, $true) | |
} catch { | |
$ProtocolStatus.Add($ProtocolName, $false) | |
} finally { | |
$SslStream.Close() | |
} | |
} | |
[PSCustomObject]$ProtocolStatus | |
} | |
} # function Test-SslProtocol |
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