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(PowerShell) Socket Convert Existing TCP Connection to SSL/TLSDemonstrates the Chilkat Socket ConvertToSsl method.
Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll" # This example requires the Chilkat API to have been previously unlocked. # See Global Unlock Sample for sample code. $sock = New-Object Chilkat.Socket # -------------------------------------------------------------------- # This example uses the public TCP/TLS echo service at https://tcpbin.com/ # -------------------------------------------------------------------- # The echo server at tcpbin.com expects to receive TCP connections on port 4242, and TLS connections on port 4243. # We could simply connect to port 4243 using TLS like this. # However, further below, this example shows how to initially make a TCP connection, and then convert the connection to TLS. $useTls = $true $port = 4243 $maxWaitMs = 5000 $success = $sock.Connect("tcpbin.com",$port,$useTls,$maxWaitMs) if ($success -eq $false) { $($sock.LastErrorText) exit } # OK, we have a TLS connection. # Note: The server chooses the TLS protocol version. # We can see the version of the TLS connection that was established: $("TLS version: " + $sock.TlsVersion) $sock.Close($maxWaitMs) # --------------------------------------------------------------------- # Now we'll do the same, except first we connect to port 4243 using TCP, # and then convert the connection to TLS. # # This may seem pointless, and it is for the case w/ this server. However, there could be situations # where you're interacting with a server of some kind where there is a need to convert to/from TLS. # (This is common internal to many protocols, such as SMTP, IMAP, FTP, etc., and it is often called "explicit" SSL/TLS) # Connect again, except this time useTls is $false, so we only have a simple TCP connection after this call. $useTls = $false $success = $sock.Connect("tcpbin.com",$port,$useTls,$maxWaitMs) if ($success -eq $false) { $($sock.LastErrorText) exit } # Convert the existing TCP connection to TLS. # (The method name uses "SSL" because long ago, at the time of initial development, TLS 1.0 did not yet exist.) $success = $sock.ConvertToSsl() if ($success -eq $false) { $($sock.LastErrorText) exit } # OK, we now have a TLS connection. # Again, we can see the TLS version: $("TLS version: " + $sock.TlsVersion) $sock.Close($maxWaitMs) |
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