Announcing to backup keys as QR codes on paper

antony at antony at
Wed Feb 22 20:51:22 CET 2017

On February 21, 2017 9:34:17 AM EST, "Gerd v. Egidy" <gerd.von.egidy at> wrote:
>I'd like to announce a program I wrote to backup GnuPG and SSH keys as 
>qrcodes on paper:

Just wanted to say thanks for sharing your work. As for paperkey, I have an RSA 4096 bit key. Without paperkey, the output for my key was around 23-24 pages. With paperkey (using base64 output), the output was around 19 pages, so the benefit was minimal. Also, the first time I tried, the decode process kept failing on one barcode from the output pdf, but I re-encoded it and tried again and the decode process verified correctly. The ability of zbar to process the images directly from the pdf was impressive IMO.
Sent from my Android device with K-9 Mail. Please excuse my brevity.
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