Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. General and Desktop
  4. openSSL in QT
Forum Updated to NodeBB v4.3 + New Features

openSSL in QT

Scheduled Pinned Locked Moved Unsolved General and Desktop
22 Posts 4 Posters 6.6k Views 2 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • SGaistS Offline
    SGaistS Offline
    SGaist
    Lifetime Qt Champion
    wrote on last edited by
    #2

    Hi,

    The usual first step is to install OpenSSL.

    Interested in AI ? www.idiap.ch
    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

    1 Reply Last reply
    1
    • S Offline
      S Offline
      saeid0034
      wrote on last edited by
      #3

      i want to use it on QNetworkReques and it everytime give me this error
      i build openssl by myself and add lib to my project but nothing changed
      i try to use precompiled openssl too but i still get same error

      1 Reply Last reply
      0
      • SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by
        #4

        Which OS ?
        Which version of Qt ?
        Which version of OpenSSL ?
        How did you install Qt ?

        Interested in AI ? www.idiap.ch
        Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

        S 1 Reply Last reply
        1
        • SGaistS SGaist

          Which OS ?
          Which version of Qt ?
          Which version of OpenSSL ?
          How did you install Qt ?

          S Offline
          S Offline
          saeid0034
          wrote on last edited by
          #5

          @SGaist
          window
          QT 5.15.0
          i test multi version like 1.1.1g, openssl-1.0.2a, and also precompiled openssl-1.1.1g-win64-mingw
          i have two version of Qt
          one i install normally from site (via installer)
          and Qt static

          1 Reply Last reply
          0
          • SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #6

            So I guess you are also using the MinGW build of Qt ?

            Interested in AI ? www.idiap.ch
            Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

            S 1 Reply Last reply
            1
            • SGaistS SGaist

              So I guess you are also using the MinGW build of Qt ?

              S Offline
              S Offline
              saeid0034
              wrote on last edited by
              #7

              @SGaist yes
              i have mingw version
              i also try openssl from this site

              1 Reply Last reply
              0
              • SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #8

                Did you check that you have everything from the right architecture ?

                Interested in AI ? www.idiap.ch
                Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                S 1 Reply Last reply
                1
                • SGaistS SGaist

                  Did you check that you have everything from the right architecture ?

                  S Offline
                  S Offline
                  saeid0034
                  wrote on last edited by
                  #9

                  @SGaist yes, i build openssl by qt mingw

                  1 Reply Last reply
                  0
                  • S Offline
                    S Offline
                    saeid0034
                    wrote on last edited by
                    #10

                    when i check ssl version of qt with QSslSocket::sslLibraryBuildVersionString() it say "OpenSSL 1.1.1d 10 Sep 2019"
                    its mean i need to build version 1.1.1d?

                    1 Reply Last reply
                    0
                    • S Offline
                      S Offline
                      saeid0034
                      wrote on last edited by saeid0034
                      #11

                      i build openssl version 1.1.1d too
                      and add lib to my project
                      but still no luck
                      here my code and error
                      2ac46222-1eee-42a2-a011-3421031a792c-image.png

                      and also openssl part in pro file

                      win32: LIBS += -LD:/build/ver-1d-openssl/lib/ -lcrypto
                      win32: LIBS += -LD:/build/ver-1d-openssl/lib/ -lssl
                      
                      INCLUDEPATH += D:/build/ver-1d-openssl/include
                      DEPENDPATH += D:/build/ver-1d-openssl/include
                      

                      edit: when i add openssl dll in debug folder of my project its work just fine
                      but i need static

                      1 Reply Last reply
                      0
                      • SGaistS Offline
                        SGaistS Offline
                        SGaist
                        Lifetime Qt Champion
                        wrote on last edited by
                        #12

                        Your application does not link to OpenSSL nor does Qt by default.

                        As for when running your application, the dlls must be findable. The usual way is to copy the files in the same folder as your application or modify the PATH environment variable in the Run part of the Project panel.

                        Interested in AI ? www.idiap.ch
                        Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                        S 1 Reply Last reply
                        3
                        • SGaistS SGaist

                          Your application does not link to OpenSSL nor does Qt by default.

                          As for when running your application, the dlls must be findable. The usual way is to copy the files in the same folder as your application or modify the PATH environment variable in the Run part of the Project panel.

                          S Offline
                          S Offline
                          saeid0034
                          wrote on last edited by
                          #13

                          @SGaist yes by adding dll in exe folder im able to post data
                          but there is anyway to include openssl static?

                          jsulmJ 1 Reply Last reply
                          0
                          • S saeid0034

                            @SGaist yes by adding dll in exe folder im able to post data
                            but there is anyway to include openssl static?

                            jsulmJ Offline
                            jsulmJ Offline
                            jsulm
                            Lifetime Qt Champion
                            wrote on last edited by
                            #14

                            @saeid0034 said in openSSL in QT:

                            but there is anyway to include openssl static?

                            Not without building Qt by yourself as normal Qt builds load OpenSSL libs at runtime.

                            https://forum.qt.io/topic/113070/qt-code-of-conduct

                            S 1 Reply Last reply
                            4
                            • jsulmJ jsulm

                              @saeid0034 said in openSSL in QT:

                              but there is anyway to include openssl static?

                              Not without building Qt by yourself as normal Qt builds load OpenSSL libs at runtime.

                              S Offline
                              S Offline
                              saeid0034
                              wrote on last edited by saeid0034
                              #15

                              @jsulm can anyone tell me i need to pass what in ./configure to build qt with openssl statically
                              i use this for build qt static for now

                              configure -opensource -confirm-license -static -platform win32-g++ -optimize-size -opengl desktop -prefix "C:\Qt\static" -skip webengine -nomake tests -nomake examples -qt-zlib -qt-libjpeg -qt-libpng -qt-freetype -qt-pcre -qt-harfbuzz -qt-tiff

                              i need to add what to build qt static + openssl?

                              edit: i see this page in wiki
                              based of this page i need to build qt like this

                              OPENSSL_LIBS='-L/d/build/ssl/lib -lssl -lcrypto' && configure -opensource -confirm-license -static -platform win32-g++ -openssl-linked -optimize-size -opengl desktop -prefix "C:\Qt\static" -skip webengine -nomake tests -nomake examples -qt-zlib -qt-libjpeg -qt-libpng -qt-freetype -qt-pcre -qt-harfbuzz -qt-tiff

                              in this configure OPENSSL_LIBS is Location of openssl-1.1.1g i compiled before (with mingw)

                              its all ok?

                              jsulmJ 1 Reply Last reply
                              0
                              • S saeid0034

                                @jsulm can anyone tell me i need to pass what in ./configure to build qt with openssl statically
                                i use this for build qt static for now

                                configure -opensource -confirm-license -static -platform win32-g++ -optimize-size -opengl desktop -prefix "C:\Qt\static" -skip webengine -nomake tests -nomake examples -qt-zlib -qt-libjpeg -qt-libpng -qt-freetype -qt-pcre -qt-harfbuzz -qt-tiff

                                i need to add what to build qt static + openssl?

                                edit: i see this page in wiki
                                based of this page i need to build qt like this

                                OPENSSL_LIBS='-L/d/build/ssl/lib -lssl -lcrypto' && configure -opensource -confirm-license -static -platform win32-g++ -openssl-linked -optimize-size -opengl desktop -prefix "C:\Qt\static" -skip webengine -nomake tests -nomake examples -qt-zlib -qt-libjpeg -qt-libpng -qt-freetype -qt-pcre -qt-harfbuzz -qt-tiff

                                in this configure OPENSSL_LIBS is Location of openssl-1.1.1g i compiled before (with mingw)

                                its all ok?

                                jsulmJ Offline
                                jsulmJ Offline
                                jsulm
                                Lifetime Qt Champion
                                wrote on last edited by
                                #16

                                @saeid0034 said in openSSL in QT:

                                OPENSSL_LIBS='-L/d/build/ssl/lib -lssl -lcrypto

                                This looks like linking against shared OpenSSL libs.

                                https://forum.qt.io/topic/113070/qt-code-of-conduct

                                S 1 Reply Last reply
                                1
                                • jsulmJ jsulm

                                  @saeid0034 said in openSSL in QT:

                                  OPENSSL_LIBS='-L/d/build/ssl/lib -lssl -lcrypto

                                  This looks like linking against shared OpenSSL libs.

                                  S Offline
                                  S Offline
                                  saeid0034
                                  wrote on last edited by saeid0034
                                  #17

                                  @jsulm you say i do not need to set OPENSSL_LIBS?
                                  and by the way i think this 2 lib use for shared version libssl.dll.a & libcrypto.dll.a

                                  and also i use mingw to build openssl and Qt

                                  1 Reply Last reply
                                  0
                                  • M Offline
                                    M Offline
                                    Markus43
                                    wrote on last edited by
                                    #18

                                    You don't need to rebuild Qt. Just select OpenSSL in the installer, and do what is suggested here:

                                    https://stackoverflow.com/questions/59507538/install-openssl-for-msvc2017-on-64-bit-windows-10

                                    S 1 Reply Last reply
                                    1
                                    • M Markus43

                                      You don't need to rebuild Qt. Just select OpenSSL in the installer, and do what is suggested here:

                                      https://stackoverflow.com/questions/59507538/install-openssl-for-msvc2017-on-64-bit-windows-10

                                      S Offline
                                      S Offline
                                      saeid0034
                                      wrote on last edited by
                                      #19

                                      @Markus43 thanks for reply, but i need openssl for static build

                                      1 Reply Last reply
                                      0
                                      • M Offline
                                        M Offline
                                        Markus43
                                        wrote on last edited by
                                        #20

                                        Then the question is: Does OpenSSL need to be static, too?

                                        If you can live with using OpenSSL dlls while using static Qt, you can just add the following to your configure line (also with OpenSSL from the installer) and you're done.
                                        e.g. for x86 builds:

                                        -openssl -I C:\Qt\Tools\OpenSSL\Win_x86\include -L C:\Qt\Tools\OpenSSL\Win_x86\lib
                                        
                                        S 1 Reply Last reply
                                        1
                                        • M Markus43

                                          Then the question is: Does OpenSSL need to be static, too?

                                          If you can live with using OpenSSL dlls while using static Qt, you can just add the following to your configure line (also with OpenSSL from the installer) and you're done.
                                          e.g. for x86 builds:

                                          -openssl -I C:\Qt\Tools\OpenSSL\Win_x86\include -L C:\Qt\Tools\OpenSSL\Win_x86\lib
                                          
                                          S Offline
                                          S Offline
                                          saeid0034
                                          wrote on last edited by
                                          #21

                                          @Markus43 said in openSSL in QT:

                                          Then the question is: Does OpenSSL need to be static, too?

                                          If you can live with using OpenSSL dlls while using static Qt, you can just add the following to your configure line (also with OpenSSL from the installer) and you're done.
                                          e.g. for x86 builds:

                                          -openssl -I C:\Qt\Tools\OpenSSL\Win_x86\include -L C:\Qt\Tools\OpenSSL\Win_x86\lib
                                          

                                          for using openssl static too i need to build Qt static with openssl again?

                                          M 1 Reply Last reply
                                          0

                                          • Login

                                          • Login or register to search.
                                          • First post
                                            Last post
                                          0
                                          • Categories
                                          • Recent
                                          • Tags
                                          • Popular
                                          • Users
                                          • Groups
                                          • Search
                                          • Get Qt Extensions
                                          • Unsolved