program stopping working without error when creating hash

[PabloKench]

I compiled my botan lib as static and with zlib support for x86, but I'm getting some very strange errors

I suspect it's the lib

First I compiled the lib as follows

python configure.py --cc=msvc --os=windows --cpu=x86 --disable-shared --build-targets=static --without-debug-info --prefix=build\x86 --with-zlib --with-external-includedir=MyPasteZlibInclude --with-external-libdir=MyPastZlibLib

I'm using botan in an x86 dll compiled in release

I wrote the following code:

Botan::secure_vector<uint8_t> GHash(std::vector<uint8_t> input) {
    MessageBoxA(NULL, "Init", "Test", MB_OK);

    std::unique_ptr<Botan::HashFunction> hash_function = Botan::HashFunction::create_or_throw("SHA-256");
    MessageBoxA(NULL, "pos", "Test", MB_OK);

    hash_function->update(input);
    return hash_function->final();
}

void GenerateHashFile(std::vector<uint8_t>& filebytes) {
    MessageBoxA(NULL, "initHash", "test", MB_OK);
    Botan::secure_vector<uint8_t> Hash1 = GHash(filebytes);
    MessageBoxA(NULL, "ok", "test", MB_OK);
    
    Botan::secure_vector<uint8_t> checkBytes = { ... };
	
    ....
	
}

When running my code on x86 release the program stops working on

When you call Botan::HashFunction::create_or_throw the program stops working, this was not supposed to happen, I suspect it is the compiled lib

If I comment Botan::secure_vector<uint8_t> Hash1 = GHash(filebytes);

Botan::secure_vector<uint8_t> checkBytes {} makes my program stop working too

Does anyone have any suspicions as to what it could be?

[reneme]

When you call Botan::HashFunction::create_or_throw the program stops working, this was not supposed to happen, I suspect it is the compiled lib

Almost certainly it is not a bug in the library's implementation itself, as this is code that has been tested and used successfully by many others.

We've seen similar failure modes before. Namely "the application just crashes on the first invocation of the library on Windows". Often this indicates that the user had an issue in their build system. For instance:

• linking a debug version to a release binary,
• using incompatible runtimes (/MD, /MT, ...) when building the library
  (Botan uses /MD by default, but you could try configuring with --msvc-runtime to change that), or
• building with subtly different but incompatible architecture targets

The above points may also apply to the zlib integration, which you don't seem to use (yet). Perhaps try building Botan without zlib and make a small test program that doesn't actually use any zlib functionality to rule out issues there.

Unfortunately, I'm rarely developing on the Windows platform and I can't give much more guidance off the top of my head.

[PabloKench]

I managed to get it to work using --msvc-runtime