An extension of QTcpServer to support ssl. The counterpart to QSslSocket

version 1.0.0

To install:

❯ qpm install de.skycoder42.qsslserver


An extension of QTcpServer to support ssl. The counterpart to QSslSocket.

It works exactly like the TCP server. The only difference: you need to set a certificate before connecting:

auto server = new QSslServer(this);

//emits newConnection just like the tcp variant
connect(server, &QSslServer::newConnection, this, [this](){
	while(server->hasPendingConnections()) {
		auto socket = server->nextPendingConnection();

		//work with the new socket

//load a certificate and private key, then start listening
	qCritical() << "Failed to import certificates";
	server->listen(QHostAddress::Any, 4711);


  • Works like a normal QTcpServer, but with QSslSocket instead of QTcpSocket
  • Adds a variety of useful method to setup the server. Mainly loading certificates and keys.
  • You can configure the server as deeply as you want by directly using QSslConfiguration


The package is providet as qpm package, de.skycoder42.qsslserver. You can install it either via qpmx (preferred) or directly via qpm.

Via qpmx

qpmx is a frontend for qpm (and other tools) with additional features, and is the preferred way to install packages. To use it:

  1. Install qpmx (See GitHub - Installation)
  2. Install qpm (See GitHub - Installing, for windows see below)
  3. In your projects root directory, run qpmx install de.skycoder42.qsslserver

Via qpm

  1. Install qpm (See GitHub - Installing, for windows see below)
  2. In your projects root directory, run qpm install de.skycoder42.qsslserver
  3. Include qpm to your project by adding include(vendor/vendor.pri) to your .pro file

Check their GitHub - Usage for App Developers to learn more about qpm.

Important for Windows users: QPM Version 0.10.0 (the one you can download on the website) is currently broken on windows! It's already fixed in master, but not released yet. Until a newer versions gets released, you can download the latest dev build from here:


The code sample at the beginning of the page is basically it. For a more advanced example, check the project in the Sample subfolder. It's a widgets application with an SSL based echo server. Certificates are included to emulate a real life situation:

  • Sample/certs/root.crt is a PEM encoded CA certificate that is added as CA cert to the client
  • Sample/certs/server.p12 is a PKCS#12 container with the root CA certificate, the server certificate (signed by the CA cert) and the servers private key. It is loaded by the server.

(Note: For this example the p12 file is unencrypted. Typically a password should be used to protect it)



View on Github

License: BSD_3_CLAUSE

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