[Solved] Program with QCA library crashing on other computers

macav

just one more thing, when I run qcatool2.exe, it says "Cannot load library qca-ossl2.dll: The specified procedure could not be found."

lgeyer

Are you sure that you aren't mixing different library versions?

macav

Okay, I made it work :) Previously, I used binaries downloaded from qca site, now I tried to compile latest 2.0.3 version, then qca-ossl plugin and it's working.
thanks

chinnisasi

Hi,
i followed all the steps given in the below link
http://www.essentialunix.org/index.php?option=com_content&view=article&id=48:qcatutorial&catid=34:qttutorials&Itemid=53.

firstly, I am able to compile latest qca 2.0.3 and able to call library functions in Qca.
Second, I am able to compile and make qca-ossl2.dll..but i am unable to load the this dll.( that y i m not able to call aes, rsa, and other block cipher algos)

this the error i m getting when i using the qcatool2.exe
qca-ossl2.dll: failed to load: The plugin 'C:/QtSDK/Desktop/Qt/4.7.4/mingw/plugins/crypto/qca-ossl2.dll' uses incompatible Qt library. Expected build key "Windows mingw release full-config", got "Windows mingw debug full-config".

if possible please explain installation procedure how u compiled qca-ossl dll

OS:
windows : version 7
QT version: 4.7.4
Qt creator: 2.3.1

macav

well, according to the error, I guess you're combining release and debug builds. I Built QCA and qca-ossl2 as both debug and release. I used "GNU Make":http://www.gnu.org/software/make/ but i think that's irrelevant .. procedure is in README/INSTALL files.. i did something like this:
QCA:
configure --debug-and-release
make
installwin

qca-ossl2:
configwin rd
qmake
make
copy lib*.dll qtdir\plugins\crypto

chinnisasi

hi,
I followed all the steps mentioned in the above post. but still i m unable to load qca-ossl plugin. when i m using QCA::supportedFeatures().. this is the following response (sha1", "key"random", "md5", "storelist")

macav

do you have dlls from openssl in the folder where exe file is? i'm not sure, but i think the necessary are ssleay32.dll and libeay32.dll

chinnisasi

still not able to load the plugin

macav

I ran out of ideas, check one more time that you have all necessary files in the folder with exe, and qca-ossl2.dll in subfolder "crypto" ..
if you're still not able to load the plguin, you can try openssl library directly, without qca

zhangjunhua

i also followed all the steps given in the below link
http://www.essentialunix.org/index.php?option=com_content&view=article&id=48:qcatutorial&catid=34:qttutorials&Itemid=53.

i can using the QCA's funtion,when i deploy the nessary dlls and exe to other computers.
there is a error with QCA.
I have checked it.the QCA can not loaded ,so i call the QCA's funtion and get a panic.

so i need help ,every one ,thanks