balos1/easy-gpg-to-paper

easy-gpg-to-paper aims to make exporting your secret gpg key to paper, and then restoring from paper, an easy and painless process.

I am a computational scientist and research software engineer in the Center for Applied Scientific Computing (CASC) at Lawrence Livermore National Laboratory. My work focuses on the research and development of scalable numerical algorithms and software for high-performance scientific computing. I am a core developer of the SUNDIALS project. I have experience working with a wide variety of scientific applications including ones from combustion, nuclear physics and fusion energy science.

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easy-gpg-to-paper's Issues

non-zero exit status 4

I'm getting a non-zero exit status 4 error.

Probably due to my incompetence.
I'm trying to import 2 png's that I just made with the export tool.

gpg2paper.py import --pubkey mykey.asc --png --in tryout1.png tryout2.png

after which I get:

`scanned 0 barcode symbols from 1 images in 1 seconds

WARNING: barcode data was not detected in some image(s)
things to check:
- is the barcode type supported? currently supported symbologies are:
EAN/UPC (EAN-13, EAN-8, UPC-A, UPC-E, ISBN-10, ISBN-13),
Code 128, Code 39 and Interleaved 2 of 5
- is the barcode large enough in the image?
- is the barcode mostly in focus?
- is there sufficient contrast/illumination?

Traceback (most recent call last):
File "/usr/local/bin/gpg2paper.py", line 274, in
sys.exit(main())
File "/usr/local/bin/gpg2paper.py", line 109, in main
do_import(args)
File "/usr/local/bin/gpg2paper.py", line 122, in do_import
base64str = read_chunks_png(args.in_filenames)
File "/usr/local/bin/gpg2paper.py", line 151, in read_chunks_png
chunk = subprocess.check_output(['zbarimg', '--raw', in_filename])
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 573, in check_output
raise CalledProcessError(retcode, cmd, output=output)
`

Any ideas about what I'm doing wrong?
And thanks for making this tool!

CRC of secret does not match

Steps to reproduce:

1. Create an export of a key

./gpg2paper/gpg2paper.py export --keyid 0EEA0F23C0051DFFE1AD5CF408DDAA857B879A26 --png --out 0EEA0F23C0051DFFE1AD5CF408DDAA857B879A26

2. Investigate created barcode files

$ ls -la *.png
-rw-rw-rw- 1 gun gun 3396 Jan  4 16:50 0EEA0F23C0051DFFE1AD5CF408DDAA857B879A261.png
-rw-rw-rw- 1 gun gun 3419 Jan  4 16:50 0EEA0F23C0051DFFE1AD5CF408DDAA857B879A262.png
-rw-rw-rw- 1 gun gun 3472 Jan  4 16:50 0EEA0F23C0051DFFE1AD5CF408DDAA857B879A263.png
-rw-rw-rw- 1 gun gun 3293 Jan  4 16:50 0EEA0F23C0051DFFE1AD5CF408DDAA857B879A264.png

3. Delete key from local keyring for testing the import

gpg --delete-secret-and-public-keys 0EEA0F23C0051DFFE1AD5CF408DDAA857B879A26

4. Try to import from qrcode files

./gpg2paper/gpg2paper.py import --pubkey /mnt/c/users/gun/gpg_key.pub --png --in *.png
scanned 1 barcode symbols from 1 images in 0.28 seconds

scanned 1 barcode symbols from 1 images in 0.24 seconds

scanned 2 barcode symbols from 1 images in 0.24 seconds

scanned 1 barcode symbols from 1 images in 0.2 seconds

CRC of secret does not match (5CBB88!=5A5099)
Unable to read secrets file

Support import of multiple barcodes in single png

Steps to prepare:

1. Export the key to png

./gpg2paper.py export --keyid 123213232 --png --out ~/.gnupg/123213232.png

2. Place the created barcodes into a single paper (using imagemagick)

montage -mode concatenate -tile 2x ~/.gnupg/123213232.png* ~/.gnupg/123213232-full.png

3. Import the created image

./gpg2paper.py import --png --pubkey ~/.gnupg/123213232.pub --in ~/.gnupg/123213232-full.png

Current behavior

/gpg2paper.py import --png --pubkey ~/.gnupg/123213232.pub --in ~/.gnupg/123213232-full.png 
scanned 4 barcode symbols from 1 images in 0.56 seconds

Traceback (most recent call last):
  File "./gpg2paper.py", line 274, in <module>
    sys.exit(main())
  File "./gpg2paper.py", line 109, in main
    do_import(args)
  File "./gpg2paper.py", line 125, in do_import
    return import_from_b64(args.pubkey, base64.b64decode(base64str))
  File "/home/gt01/.virtualenvs/gpg/lib64/python3.7/base64.py", line 87, in b64decode
    return binascii.a2b_base64(s)
binascii.Error: Incorrect padding

Desired behavior

Key should be imported successfully.

Complete README.md

From a fresh install of Ubuntu 16.10 Yakety Yak, I stumbled upon multiple missing dependencies and problems. I've tried to keep track of every lack in a document. Maybe you should take a look to complete your README.md 😉

Switch to setuptools

Switch from distutils to setuptools to support pip uninstall and make use of requirements.

How to support >4000 bytes key

Hi,

Debian need to create key > 4000 that does not fit on a single qrcode.

How can you handle that ?

gpg vs gpg2 differences can cause issue in some specific cases

There are systems that currently have two GnuPG versions at the same time, with binaries named gpg and gpg2. In some specific cases, like using x25519 keys, the script fails because of this.

Create a pdf of a4 page with number of QR codes on each page.

What is the minimum size of QR code produced? Can two QR codes sit next to each other across short lenght of a4 page and be distinguished?

The basic idea to put all QR codes into a single pdf and that pdf can be piped into lp print.

python3-qr code available under debian

Hi,

Python3 qr code is avalible for debian non need to install pip

easy-gpg does not work with python3 and virtualenvs

Steps to reproduce

1. Clone Repo

2. Install python3 packages for zbar, qrcode and pillow.

3. Run Script

./gpg2paper.py 

Current behavior

Traceback (most recent call last):
  File "./gpg2paper.py", line 37, in <module>
    import qrcode

Wanted behavior

./gpg2paper.py 
usage: gpg2paper.py {import,export} ...

import/export gpg key from/to qrcode(s) or base64 string(s)

Submit PR to Arachnid/pyqrencode

One of the project dependencies is your fork. We should try to simplify this with a one-liner installation (e.g. apt-get install libqrencode3 zbar-tools && pip install pyqrencode)

To avoid needing git clone https://github.com/cojomojo/pyqrencode.git, you should submit a PR to Arachnid/pyqrencode from your fork.