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Thread: Crypto++ on Android: library linkage issue

  1. #1
    Join Date
    Apr 2012
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    Qt products
    Qt4
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    MacOS X Unix/X11 Windows

    Question Crypto++ on Android: library linkage issue

    Hi,

    I'm trying to build a Qt application for Android that makes use of Crypto++.
    Following the instructions written here I managed to get a libcryptopp.a and a libcryptopp.so. I've used mingw32-make on Windows 10 to build.
    I've added the library in the .pro file like

    Qt Code:
    1. contains(ANDROID_TARGET_ARCH,armeabi-v7a) {
    2. ANDROID_EXTRA_LIBS = \
    3. $$PWD/../../../../cryptopp565/libcryptopp.so
    4. }
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    ...but I get a lot of errors like

    error: undefined reference to 'CryptoPP::RandomNumberGenerator::GenerateBlock(un signed char*, unsigned int)'

    I'm assuming that's because the library is not properly linked. Any idea how to make it work?

    Thanks!

  2. #2
    Join Date
    Apr 2012
    Posts
    4
    Qt products
    Qt4
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    MacOS X Unix/X11 Windows

    Default Re: Crypto++ on Android: library linkage issue

    I ended up using libsodium. It was easier to make it work and also it's a more high-level crypto library, so even better.

  3. #3
    Join Date
    Dec 2017
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    Qt products
    PyQt3 PyQt4
    Platforms
    Windows Android

    Default Re: Crypto++ on Android: library linkage issue

    Making an online library about crypto on android is making it way easy to stay in touch with so often renewing cryptomarket. But still, there no such thing as enough information, especially when it comes to make money with it. You could take a look at ICOs with Ethereum-based tokens to get to know some fresh projects.

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