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[Init-Script]Partitionsverschlüsselung LUKS&verschl.Keyfile
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manuels
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Joined: 22 Nov 2003
Posts: 2146
Location: Europe

PostPosted: Wed Aug 30, 2006 12:38 pm    Post subject: [Init-Script]Partitionsverschlüsselung LUKS&verschl.Key Reply with quote

Hi,

ich habe meine Home-Partition verschlüsselt. Hierzu habe ich einen 256-Bit Keyfile mit GPG verschlüsselt und auf einen Dongle gepackt.
(Hab mir das ganze nach den Anleitungen partition verschlüsseln mit dmcrypt und DM-Crypt zusammengebastelt.)

Dazu habe ich dann ein Init-Script geschrieben. Mit RC_PARALLEL_STARTUP="no" in der /etc/conf.d/rc läuft es sehr gut.
Verbesserungsvorschläge willkommen.

File: /etc/init.d/cryptoluks
Code:
#!/sbin/runscript

# Vars
mapdevice=decrypt-home;
lvmdevice=/dev/vg/crypto-home;
mountpath=/home

keyfile=/mnt/usb/home-key.gpg
keymount=/mnt/usb

depend() {
        need checkroot
        need modules
        use lvm
        before localmount
        before xdm
        before *
}


start() {
        ebegin "Mounting LUKS loopback device ...";

        einfo "Please insert key file medium and stand by while trying to mount...";
        false;
        while test $? -ne 0; do
          mount $keymount > /dev/null 2>&1
        done

        false;
        while test $? -ne 0; do
          gpg --quiet -d $keyfile | cryptsetup -y luksOpen $lvmdevice $mapdevice;
        done

        umount -l $keymount > /dev/null 2>&1;

        mount $mountpath;

        eend $?;
}
stop() {
        ebegin "Unmounting LUKS loopback device...";

        umount $mountpath;
        /bin/cryptsetup luksClose $mapdevice;

        eend $?;
}

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Moorenkopf
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Joined: 18 Apr 2004
Posts: 189
Location: NRW

PostPosted: Wed Aug 30, 2006 6:55 pm    Post subject: Reply with quote

Ich hab' da einen Querverweis anzubieten: http://forums.gentoo.org/viewtopic-t-450094-highlight-.html
</my 2 cents>;)
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manuels
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Joined: 22 Nov 2003
Posts: 2146
Location: Europe

PostPosted: Thu Aug 31, 2006 11:19 am    Post subject: Reply with quote

jo, aber das ist eben ohne verschlüsseltem Keyfile.
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