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Questions tagged [qsslsocket]

QSslSocket is an SSL-encrypted network socket class, from the Qt library

QSslSocket is a class in the library that provides a Secure Sockets Layer ()-encrypted network . It is part of the QtNetwork module and was introduced in Qt 4.3.

The most common way to use QSslSocket is to construct an object and start a secure connection by calling connectToHostEncrypted(). This method starts an immediate SSL handshake once the connection has been established.

See also

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Server crash when trying to access QSslSocket functions

So I am working on a very basic server/client thing in QTCreator. I am supposed to have the server send the certificate to the client when a client tries to connect. I have the following code in the server: void Dialog::createSocket() { …
DDauS
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Possible reasons for QSSLSocket to stop sending/receiving data

Can anybody give me a possible reason why my QSSLSocket would stop sending and receiving data without firing a stateChanged or disconnected signal. My app starts a thread which connects to Facebooks XMPP server, authenticates and then goes into a…
user1379811
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QSslSocket::startServerEncryption fails with "PEM_READ_BIO_PRIVATEKEY:bad password read"

I've created an SSL server using the sample code from the Qt documentation. I then connect to it using QSslSocket::connectToHostEncrypted. The server fails, however, and this is in QSslSocket::errorString() Cannot provide a certificate with no key,…
sashoalm
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QSslSocket: build vs runtime versions

There is two versions of opelSsl in QT: QSslSocket::sslLibraryVersionString() QSslSocket::sslLibraryBuildVersionString() First one show runtime used library, second show build library version... Ok, but not clearly. So, witch library (built-in or…
chechestor
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Email not sending when using SMTP server on Qt 4

I've been making a desktop app using Qt 4 and C++. This is my code: maiwindow.cpp #include "mainwindow.h" #include "ui_mainwindow.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { …
Chayma
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ERROR: could not establish encrypted connection , QT-SslServer

I start to study this code, but... There are some issues: CLIENT SIDE: ERROR: could not establish encrypted connection (The remote host closed the connection) SERVER SIDE: Now listening on 0.0.0.0:22333 New connection ERROR: could not receive…
Programmer
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QSSLSocket flush crashes

qint64 sent = socket->write (data, size); socket->flush (); This works fine with a QTcpSocket, but eventually crashes within a memcpy inside a QSSLSocket private event (flush). I know I should add more context, but that's a lot. Omitting…
charlie
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When does the platform does not support ssl? (QSslSocket::supportsSsl() returns false)

I am an qt app developer which uses https to connect to rest api. I deploy ssl dll libraries together with application (the same version as the qt was built with) but sometimes on windows it happens, that users report to me that the internet…
Andrej Fogelton
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Qt Linux Mint 19.2 QSslSocket

I developed small Qt App for sending mails over smtp 465 port. It works on my developer linux mint 19.2 machine. When I deploy the app with all the libs to Mint 17.3 machine I get QAbstractSocketError::HostNotFoundError. I am using QSslSocket. If I…
Tom
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Why am I getting runtime errors, with Sockets (TCP/Web) when moved to another thread? Is `QObject::moveToThread()` a synchronous call?

I am moving some sockets from main thread to worker thread and processing readyRead(), close(), write() etc. on the new thread. Rarely I see below dangerous warning: "QSocketNotifier: Socket notifiers cannot be enabled or disabled from another…
iammilind
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What's the difference between using QWebSocket with a URL "wss://..." and QSslSocket in Qt?

New to Qt. I'm having trouble understanding the difference between using QWebSocket with a secure url, "wss://..." and QSslSocket. Which one of these is necessary to establish secure communication with a server in Qt? Or is something different…
Katie Sanderson
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Qt QSslSocket comodo positive ssl

I have a real bought comodo positive ssl certificate installed on apache and checked the correct installation through the site https://www.sslshopper.com/ssl-checker.html in the kit with the certificate is 5…
Jack H
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QSslSocket cannot resolve and Permission Denied error

The error messages are the following: qt.network.ssl: QSslSocket: cannot resolve TLSv1_1_client_method qt.network.ssl: QSslSocket: cannot resolve TLSv1_2_client_method qt.network.ssl: QSslSocket: cannot resolve TLSv1_1_server_method qt.network.ssl:…
user7392005
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QAbstractSocket::UnsupportedSocketOperationError with QSslSocket

QAbstractSocket throws UnsupportedSocketOperationError when connecting to a host over QSslSocket::connectToHostEncrypted(), Environnement: Qt 5.9.3 Ubuntu 16.04 (virtual machine) also Qt 5.9.3 Fedora 26 (native) _socket = new…
tbone
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Compiling openssl with Qt MINGW for Android arm

I'm making an Android application in which I need to use SSL but it is causing problems like cannot call unresolved function EC_get_builtin_curves I searched for a solution to this problem and found out that I need to provide SSL library with the…
Farhan Haider
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