Mirror/paper-secret
1
0
Fork 0
mirror of https://codeberg.org/privacy1st/paper-secret synced 2024-12-22 23:56:05 +01:00
Code Issues Packages Projects Releases Wiki Activity
Shamir Secret Sharing on paper using gfshare.
2 Commits 1 Branch 0 Tags 34 KiB
Python 100%
d2dae5faa0
Go to file
Daniel Langbein d2dae5faa0 add PyPi link
2022-09-02 12:30:46 +02:00
.run init 2022-09-02 11:27:50 +02:00
src/paper_secret init 2022-09-02 11:27:50 +02:00
.gitignore init 2022-09-02 11:27:50 +02:00
create_script.py add PyPi link 2022-09-02 12:30:46 +02:00
LICENSE init 2022-09-02 11:27:50 +02:00
pyproject.toml init 2022-09-02 11:27:50 +02:00
README.md add PyPi link 2022-09-02 12:30:46 +02:00
requirements.txt init 2022-09-02 11:27:50 +02:00
setup.cfg init 2022-09-02 11:27:50 +02:00

README.md

Paper-Secret

Shamir Secret Sharing on paper using gfshare.

Installation

PyPi

Dependencies

gfshare is required to split and merge the secret. See man gfshare for an explanation of Shamir Secret Sharing in gf(2**8).

sudo pacman -S --needed libgfshare

qrencode and imagemagick (convert) are required to create and merge QR-codes during the split process. One can set the according parameters of split_encode to False to skip this step.

sudo pacman -S --needed qrencode imagemagick

enscript is required to create a PDF containing the split secret in text form. One can set the according parameters of split_encode to False to skip this step.

sudo pacman -S --needed enscript

Usage

Create a secret:

cat > secret.txt

Split the secret into 5 lines:

./enpaper.py secret.txt

Manually delete up to 2 of the 5 lines in secret.txt_txt.txt.

Then recreate the secret:

./depaper.py secret.txt.split-text.txt

Print the secret:

cat secret.txt.split-text.txt.merged.txt

Notes