Created
February 14, 2014 23:18
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Small script to convert a GPG secret key to a data matrix pdf
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| # Generates key-aa, key-ab, ... | |
| gpg --export-secret-key $1 | paperkey --output-type raw | split -b 1500 - key- | |
| # Convert each of them to a PNG image | |
| for K in key-*; do | |
| dmtxwrite -e 8 $K > $K.png | |
| done | |
| montage key-*.png -page A4 -tile 2x -geometry +5+5 master-secret-key.pdf |
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