Hi!
I remember a zip program wich can create a zip file with the same CRC/size no matter where you using that tool, actually i tried to compress a buch of files with 7zip 16.04 (64 bits) and zip 3.00 in Linux and in Windows but the final files don't have the same size, even i tried to stored the files but i get different results
Example:
wine zip.exe -rq -D -X -0 -A testwindows.zip *.txt
zip -rq -D -X -0 -A testlinux.zip *.txt
md5sum *.zip
725d46abb1b87e574a439db15b1ba506 testlinux.zip
70df8fe8d0371bf26a263593351dd112 testwindows.zip
As i said i remember a zip program (i don't know the name) who the author said that the result was always the same regardless of the platform (win, linux...)