commit 61dec59f3e22027b389e2bef197c87a4a4ab8b68
Author: Sebastian Hugentobler <sebastian@vanwa.ch>
Date:   Thu Jul 19 12:30:54 2018 +0200

    Initial commit

diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..d1f040a
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,12 @@
+root = true
+
+[*]
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+indent_style = space
+indent_size = 4
+
+[*.md]
+trim_trailing_whitespace = false
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..f0eba74
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+*~
+.DS_Store
+*.swp
+target
diff --git a/README b/README
new file mode 100644
index 0000000..65d9249
--- /dev/null
+++ b/README
@@ -0,0 +1,10 @@
+Two scripts to create qr codes from a private key and to restore them.
+
+Use "create_codes" to create a pdf "qr.private.pdf" with arranged qrcodes (it
+takes the key id as an input).
+
+When restoring, scan the qr codes in the order of their numbers, put the parts
+into numbered txt files and run the "restore_key" script with the first arg being
+the path to the public key and the second one the path to the directory with the
+txt files.
+
diff --git a/bin/create_codes b/bin/create_codes
new file mode 100755
index 0000000..79aad5d
--- /dev/null
+++ b/bin/create_codes
@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+set -e
+
+KEY=$1
+OUTPUT=${2:-qr.private.pdf}
+SINGLE_SIZE=${3:-1024}
+
+gpg2 --export-secret-key "$KEY" | paperkey --output-type raw | base64 | split -b "$SINGLE_SIZE"
+
+index=1
+for i in x*; do
+    qrencode --8bit --level=M -o "qr.$index.png" < "$i"
+    let index=index+1
+done
+
+montage -title "private key for $KEY" -label "%t" -mode concatenate $(find . -name  "qr.*.png" | sort -V) "$OUTPUT"
+
+function finish {
+    rm -f x*
+    rm -f qr.*.png
+}
+
+trap finish EXIT
diff --git a/bin/restore_key b/bin/restore_key
new file mode 100755
index 0000000..544d98c
--- /dev/null
+++ b/bin/restore_key
@@ -0,0 +1,7 @@
+#!/usr/bin/env sh
+set -e
+
+PUB_KEY=$1
+INPUT_DIR=${2:-.}
+
+cat "$INPUT_DIR"/*.txt | base64 -D | paperkey --pubring "$PUB_KEY" --input-type raw --output private.key