[Novalug] how to lock a file with a key

[Greg Faust]

I'm not an expert, but 3 options I can think of are gnupg (you would need
your keys to unscramble the file) or a password protected zip, or use
TrueCrypt and create a file based encrypted virtual drive, then copy
whatever you want to the drive, unmount the drive, email it to yourself and
use truecrype on the other end to mount the drive and get your stuff...
might want to zip the virtual drive but encrypted stuff tends to compress
poorly.

On Wed, Feb 20, 2008 at 7:03 PM, Nino Pereira <pereira at speakeasy.net> wrote:

> A simple question for security experts:
>
> I'd like to scramble a file, send it by email,
> and then unscamble it at the other end. I'd like
> it to be scrambled with a key, which only I know,
> so that I can unscramble it at the other end with
> this same key.
>
> Any earlier discussion about hashes and md5 and such
> mostly went by me because I didn't expect to ever want to do
> this, but now that I do I can't remember what to google for.
>
> Any suggestions?
>
> Thank you,
>
> Nino
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