An alternative is to use Paperkey [1], which creates a text based encoding of your private key that can be scanned in and OCR'd. I believe there is also some redunceny similar to using a QR code. This method is designed for long term storage.<p>[1]: <a href="https://www.jabberwocky.com/software/paperkey/" rel="nofollow">https://www.jabberwocky.com/software/paperkey/</a>