QRfile - Any file to QR

Bash script that can convert any file to splitted QR codes and vice versa

How it works

Encode:
1. Converts file to ascii85 or base64 text file
2. Splits text file to many files with the maximum size of QR code (2953 bytes)
3. Creates QR code from each file
4. Creates QR code with info about file
Decode
1. Converts QR to splitted text files
2. Connects files into one
3. Decodes file using ascii85 or base64

Requirement

bash
ascii85 (optional)
GNU Coreutils
GNU Sed
qrencode (for encode QR)
zbar (also know as zbar-tools) (for decode QR)
sha512sum and/or sha256sum for checking hash sum (optional)

How to use

Script always have two required parametrs

create [options] [file] it will create QR codes into qr_[filename] add

Options:
- -a, --ascii or --ascii85 before file to use ascii85 (default)
- -b, --base or --base64 before file to use base64
- -256, --sha256 before file to attach sha256 sum to QR
- -512, --sha512 before file to attach sha512 sum to QR
- -t, --test before file to test dir after creating QR codes
convert [qr codes dir] it will convert file from QR codes in the given dir to [file]_converted

Warning! Script will try to convert all .png files from that dir so make sure it only has appropriate files

Example of usage: bash qrfile create file.zip, bash qrfile create -b -512 file.zip,bash qrfile convert file.zip_qr

Warning! script creates info QR png with required info (such as name, cipher and hash) and it need to have name*info.png to property decode QR files and check hash sum

Instalation

QRfile is bash script so you can just download it and run but I have created makefile so you can easily install and uninstall it and run in every path

git clone https://github.com/BxOxSxS/QRfile
cd QRfile
sudo make install

To uninstall:

sudo make uninstall

But Why?

I really don't know. The process takes an unprofitable amount of memory and time: 1 Mib encode to 3,6Mib (base64: 3.8) in 450 (480) png files in about 5 seconds and decodes in about 1 minute but I have done it. You can now convert your favorite song into QR codes and hang it on the wall

BxOxSxS / QRfile