-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 05/09/09 18:24, Harry Rickards wrote: > On 05/09/09 18:05, Harry Rickards wrote: >> On 05/09/09 17:42, Dave Patterson wrote: >>> * Harry Rickards <[email protected]> [2009-05-09 11:14:14 +0100]: >>>> -----BEGIN PGP SIGNED MESSAGE----- >>>> Hash: SHA1 >>>> >>>> I was wondering if anyone knew of a way, perhaps using /etc/aliases, so >>>> that all incoming mail addressed to my username (hrickards) is encrypted >>>> with *my* public key, so that when I read it only I can read it using >>>> *my* private key. If the mail was signed or encrypted beforehand, it >>>> could then be decrypted with my private key as usual. >>>> >>> Hmm. So, we're looking at encrypting mails as they come in, prior to >>> disk write, in a format that you, and only you, can later decrypt them, >>> preferably using gpg. I don't care why, it's an intereUting problem. >>> Local storage remains secure. At least that's what I think is the >>> intention. >>> Outside of using some disk encryption system like this: >>> <http://www.debianhelp.org/node/15244> >>> I'd try to pipe the mail fetchmail, procmail (pipe to >>> encryptionscrypt,write-encrypted-email-to-disk) >>> Remembering procmail only functions as a gate, and does not write the >>> mail to disk until told to, and neither does fetchmail >>> (or getmail or retchmail). >>> script should be very simple: >>> gpg -e -r yourusergpgidhere themessage >>> Build from that command. >>> Trick is to not write to disk prior to encryption. >> Uh, huh. Thanks for the tips, I'll try to come up with something from that. > > > So far I've added the gpmail alias in /etc/aliases as a test using the > following line: > > gpmail:|/usr/bin/gpmail > > I then created the /usr/bin/gpmail script, and ran newaliases. In > /usr/bin/gpmail I've got: > > gpg --encrypt --sign --armor -r [email protected]|mail -s Test > [email protected] > > When piping stuff to it from the command line it works fine, but when > sending a test email to [email protected] I get a blank email in > response. I think this is because /usr/bin/gpmail is being executed as > the 'nobody' user (I setup a whoami script), and I've setup the GPG keys > for the 'mail' user. nobody can't use GPG, as it doesn't have a home > directory, so is there a way to change the user that Postfix pipes > things to with (to mail or any other user with a home directory)? Thanks > for all the help. > I've given nobody a home directory to nobody using usermod, and running /usr/bin/gpmail from the command line logged in as nobody works fine, but I still receive blank emails when sending mail to [email protected]. I suppose it could be that I'm sending it to the address it's meant to forward it to, could someone send an email to [email protected] for me? Thanks. - -- Many thanks Harry Rickards (a.k.a l33tmyst)
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