zxing ----- ZXing ("zebra crossing") is an open-source, multi-format 1D/2D barcode image processing library implemented in Java, with ports to other languages. https://github.com/zxing/zxing Building zxing from scratch is a massive pain, so we use the official jar. The main source repo is SVN, so we couldn't do a git submodule anyway. The releases should be signed by this key: Sean Owen (ZXing) CE32 85F3 2068 5193 D11F EA01 F6CE 9695 C931 8406 http://central.maven.org/maven2/com/google/zxing/core/3.0.1/core-3.0.1.jar http://central.maven.org/maven2/com/google/zxing/core/3.0.1/core-3.0.1.jar.asc