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[NMLUG] Encrypting backups (RQ24-1)
* Sarang <_sarang_@sarangworld.com> [Jun 28, 2004 at 07:40:41PM MDT]:
> I want to encrypt my backups (using GPG), but don't want to run into the
> silly situation where my hard drive crashes and I lose the secret key to
> decrypt my backups of the hard drive!
...
> Of course, I realize I'll need my passphrase as well, but I plan to
> store that in /dev/sarang/brain (low-memory, high-seek-time device I
> had installed some time ago).
Sarang,
Why do you need public key crypto for a backup that I'll presume only
you will access? Public key crypto is for encrypting and then
decrypting bits in a transaction between different parties that don't
have a secure channel for a shared key. This doesn't sound like what
you want. Instead, I guess you really only need "conventional
cryptography". With conventional crypto, you can always recover your
data with single pass phrase (secret key), which you've already committed
to storing in /dev/sarang/brain.
The first hit on google for encrypting a file with PGP:
http://www.google.com/search?hl=en&ie=UTF-8&q=encrypting+a+file+with+PGP&btnG=Google+Search
yields just what I assume you're looking for:
https://engineering.purdue.edu/ECN/Resources/KnowledgeBase/Docs/20020202101955
In summary:
You can still use GPG for conventional crypto, just give it a "-c".
-Matt
--
Matt Bohnsack <bohnsack@bohnsack.com>
http://bohnsack.com/
Albuquerque New Mexico, - USA
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