Connect to server with ssl

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1

Hi,

I have a custom server (delphi) which uses SSL for client connections.
I have installed the certificate on the client machine. The client application is written in .net. When I try to connect to the server I get this error: “A call to SSPI failed, see inner exception.” and the inner exception is “The message received was unexpected or badly formatted”

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Any idea what the problem may be?

2

In general this means that there is a certificate issue (usually at the server side). Still it would be good to see the exception’s stacktrace (both of them).

Please try these 2 things:

  1. Remove all the certificate loading code, add the code needed to accept all and any certificates sent from the server and try to connect to the server ( https://docs.remotingsdk.com/Clients/Tasks/HandlingSelfSignedCertificates/NET/ ). That is required to check if the server-side certificate is configured properly.

  2. Please try to open your server’s http page in the browser - what will it show there?

3

Thanks for the answer,

We need to validate the certificate sent by the client on the server.

In the browser there is popup with a certificate chooser. After selecting the certificate the page loads normally.

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4

Hello

Oh, right, you use the client certificate authentication. Could you send a mail to support@ ? I’d need to ask you to try a custom-built client to connect to your server.

Once we’ll find a solution to the issue I’ll post it in this thread too for further reference.

Thanks in advance