SSH host key fingerprint does not match pattern C# WinSCP
<p>I am trying to connect to an FTPS server using C# via WinSCP and I am getting this error:</p>

<blockquote>
  <p>SSH host key fingerprint ... does not match pattern ...</p>
</blockquote>

<p>After tons of research, I believe is has something to do with the length of the key. The key I got from WinSCP when connected using its interface under "Server and protocol information" is
<code>xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx</code>  but the ones I saw in the example is shorter like this <code>xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx</code></p>

<p>Can someone please help and offer me any pointer to resolve this would be greatly appreciated.</p>

<p>Here is my code</p>

<pre><code>string winscpPath = "C:\\Program Files (x86)\\WinSCP\\WinSCP.exe";
string username = "User123";
string password = "abc1234";
string ftpSite = "192.168.5.110";
string localPath = "C:\\Users\\ttom\\Documents";
string remoteFTPDirectory = "/Usr/thisfolder";
string sshKey = "1b:68:10:80:77:c6:65:91:51:31:5t:65:1c:g6:13:20:39:g8:d8:6d";
Boolean winSCPLog = true;
string winSCPLogPath = "C:\\Users\\ttom\\Documents\\Visual Studio 2015\\Projects\\WebApplication1\\WebApplication1";

SessionOptions sessionOptions = new SessionOptions
{
    Protocol = Protocol.Sftp,
    HostName = ftpSite,
    UserName = username,
    Password = password,
    SshHostKeyFingerprint = sshKey
};

using (Session session = new Session())
{
    // WinSCP .NET assembly must be in GAC to be used with SSIS,
    // set path to WinSCP.exe explicitly, if using non-default path.
    session.ExecutablePath = winscpPath;
    session.DisableVersionCheck = true;

    if (winSCPLog)
    {
        session.SessionLogPath = @winSCPLogPath + @"ftplog.txt";
        session.DebugLogPath = @winSCPLogPath + @"debuglog.txt";
    }

    // Connect
    session.Timeout = new TimeSpan(0, 2, 0); // two minutes
    session.Open(sessionOptions);

    TransferOptions transferOptions = new TransferOptions();
    transferOptions.TransferMode = TransferMode.Binary;

    session.GetFiles(remoteFTPDirectory + "/" +
        "test.txt", localPath, false, transferOptions);
}
</code></pre>

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