compiling and adding openssl for QT android apk

[AMOL]

Hey QTmasters anyone can help me with QT android openssl issue?

ISSUE:
QSslSocket::supportsSsl() return me false while running on android but on windows it is working fine

I tried to use prebuilt openssl but still it is not working

also I tried to build openssl for QT android form this link
https://www.tal.org/tutorials/openssl_qt_android

still issue has not resolved

CAn you help me with this?
Thanks in advance:)

[sierdzio]

Is SSL linked and deployed? Do you get any warnings? Which Android version you test this on?

[AMOL]

@sierdzio ssl link means add extra libraries in build android apk right?

I get this error:
library "/system/lib/libcrypto.so" ("/system/lib/libcrypto.so") needed or dlopened by "/data/app/org.qtproject.example.Airtls-aXxH4nLGzc1Ll3UqvzQlWg==/lib/arm/libQt5Core.so" is not accessible for the namespace: [name="classloader-namespace", ld_library_paths="", default_library_paths="/data/app/org.qtproject.example.Airtls-aXxH4nLGzc1Ll3UqvzQlWg==/lib/arm:/data/app/org.qtproject.example.Airtls-aXxH4nLGzc1Ll3UqvzQlWg==/base.apk!/lib/armeabi-v7a", permitted_paths="/data:/mnt/expand:/data/data

I am using Android version 10

[sierdzio]

Yes, SSL libraries have to be bundled together with your APK (also, remember about exports restrictions).

You have this done if you followed the second link you have shared:

contains(ANDROID_TARGET_ARCH,armeabi-v7a) {
    ANDROID_EXTRA_LIBS = \
        $$PWD/3rdparty/openssl-armv7/libcrypto.so \
        $$PWD/3rdparty/openssl-armv7/libssl.so
}

But it looks like Android is trying to load a different implementation from /system. Perhaps Google changed something again in Android 10 :( Or the paths are wrong and APK does not really contain these .so files.

[AMOL]

when I tried to check suport for openssl QT android
using
qDebug() << "sslsslssl==="<<QSslSocket::supportsSsl() << QSslSocket::sslLibraryBuildVersionString();

It gives me
sslsslssl=== false "OpenSSL 1.1.1b 26 Feb 2019"

[sierdzio]

Huh, that's bizarre. Looks like it does see the SSL libs but cannot use them? Weird. Sorry, I don't think I know how to solve it. The only thing that comes to my mind is that perhaps you are using old Qt which expects OpenSSL 1.0 instead of 1.1.

[AMOL]

@sierdzio Ohhh

I am using
QT creator 4.9.1
Qt based on QT 5.13.0

android NDK version 20.0.5594570
android sdk version 26.1.1

[sierdzio]

Qt 5.13 is recent enough, I think, but you can check with 5.14.1 just to be sure.

[AMOL]

@sierdzio I cheked that too but same issue

[ekkescorner]

@AMOL have you tried libs from https://github.com/KDAB/android_openssl

[AMOL]

@ekkescorner yes I have tried this also

[AMOL]

Good news!!! I am able to resolve issue, Reason is I have to use QT 5.13.1 instead of 5.13.0.
Thank you all for helping me out and suggesting different solution.
Good day and Happy coding!!! :) :) :)