Hi Mohammed,
a few options for you (in order from most to least work intense):
* "Don't care". The static library is 37MB, but for your actual end
result the linker should only pick the parts it actually needs which
should cut the size naturally and on your development machine, it
shouldn't really matter how big the files are.
* Enable Whole Program Optimization. Essentially this tells the
optimizer that it may look beyond function or file boundaries which
should enable it to possibly apply some better optimizations.
* Iteratively remove files from the project until it stops working.
While Crypto++ has quite a bit of support code, eg for secure memory
management, you can probably safely remove source files belonging to
eg Skein or SHA3.
I hope this will solve your issues.
BR
JPM
Am 06.11.2018 um 02:51 schrieb Mohamed Sherief:
> Hi Crypto++ Users,
>
> I obtained the latest release of Crypto++ 7.0 from
> https://www.cryptopp.com/#lists.
>
> I was able to compile it using Visual Studio 2017, and generate
> cryptlib.lib for static linking, and it works properly. The release
> version size is 36,805 KB with the following optimization options:
>
> * No Whole Program Optimization.
> * Favor Size /O1
> * Savor small code /Os
> * Complete command options: "/Yu"pch.h" /GS /W4 /wd"4231" /wd"4251"
> /wd"4275" /wd"4355" /wd"4505" /Gy /Zc:wchar_t /Zi /Gm- /O1 /Ob2
> /Fd"x64\cryptlib\Release\cryptlib.pdb" /Zc:inline /fp:precise /D
> "NDEBUG" /D "USE_PRECOMPILED_HEADERS" /errorReport:none /GF /WX-
> /Zc:forScope /Gd /Oy /Oi /MT /FC /Fa"x64\cryptlib\Release\" /EHsc
> /nologo /Fo"x64\cryptlib\Release\" /Os
> /Fp"x64\cryptlib\Release\cryptlib.pch" /diagnostics:classic"
>
>
> I am interested in AES encryption/decryption only, and the size +36 MB
> is very big relative to the limited functionality that I am interested
> in. My questions are:
>
> * Do you suggest any changes to my build command for smaller size?
> * Is it possible to exclude the functionalities that I am not
> interested in, and keep AES only for having a smaller size?
>
>
> Thanks,
> Mohamed.
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