dvjcodec / crc-manipulator

Change CRC checksums of your files.

CRC-manipulator

A tool that lets you reverse and freely change CRC checksums through smart file patching.

How it works

It appends a few bytes at the end of the file so that the file checksum computes to given hexadecimal hash.

Features

• Patching and calculating CRC checksums for:
  • CRC32
  • CRC32POSIX (cksum from GNU coreutils)
  • CRC16CCITT
  • CRC16IBM
• Available for GNU/Linux and Windows.
• Minimal GUI (supports CRC32 only; for more advanced options, use CLI version).

Seeing it in action

GUI version:

CLI version:

Binaries for Windows

To download precompiled binaries for Windows, head over to releases.

Compiling

1. Make sure you have g++ and if you wish to compile GUI frontend - qt4.

2. Run following:

    ./bootstrap
    ./waf configure
    ./waf build
   

Cross compiling for Windows

1. Make sure you have mingw-w64 and if you with to compile GUI frontend - qt4 (compiled with MinGW-w64).

   • Arch Linux: to get these, you can install mingw-w64-gcc from main repositories and mingw-w64-qt4 + dependencies from AUR.
   • mxe: unfortunately, I had no luck with linking to mxe's qt version.

2. Run following:

    ./bootstrap
   
    export CROSS_COMPILE=i686-w64-mingw32-
    export CC=${CROSS_COMPILE}gcc
    export CXX=${CROSS_COMPILE}g++
    export AR=${CROSS_COMPILE}ar
    export PKGCONFIG=${CROSS_COMPILE}pkg-config
   
    ./waf configure
    ./waf build