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Groups > linux.debian.user > #194945

Re: encryption

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On 04/21/18 09:51, Glenn English wrote:
>> That's two recommendations for putting the secret in a separate file;
> 
> Or how about creating that file, copying it to a CD or USB stick,
> hanging it on the wall, clearing out the directory, then mounting it
> when you want to use it.

Moving the encrypted file a removable media reduces the amount of time 
an adversary can potentially access the file.


zerofree can eliminate the leftover bytes of the original plaintext file 
and the original encrypted file:

https://manpages.debian.org/stretch/zerofree/zerofree.8.en.html

https://packages.debian.org/search?keywords=zerofree&searchon=names&suite=all&section=all


encfs does both mounting and encryption.  It is very convenient to use 
with a USB flash drive:

https://manpages.debian.org/stretch/encfs/encfs.1.en.html

https://packages.debian.org/search?suite=all&section=all&arch=any&searchon=names&keywords=encfs


Plus, encfs uses FUSE.  FUSE file systems can only be access by the user 
who mounted them; even root is blocked.  (But, you must consider 
attackers who can log in to your UID and/or install daemons running 
under your UID.)


David

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encryption Brian <ad44@cityscape.co.uk> - 2018-04-20 21:40 +0200
  Re: encryption Greg Wooledge <wooledg@eeg.ccf.org> - 2018-04-20 22:00 +0200
  Re: encryption David Christensen <dpchrist@holgerdanske.com> - 2018-04-21 02:10 +0200
    Re: encryption Brian <ad44@cityscape.co.uk> - 2018-04-21 17:30 +0200
      Re: encryption john doe <johndoe65534@mail.com> - 2018-04-21 17:40 +0200
        Re: encryption David Christensen <dpchrist@holgerdanske.com> - 2018-04-21 22:00 +0200
          Re: encryption john doe <johndoe65534@mail.com> - 2018-04-22 08:30 +0200
            Re: encryption David Christensen <dpchrist@holgerdanske.com> - 2018-04-22 20:30 +0200
      Re: encryption Glenn English <ghe2001@gmail.com> - 2018-04-21 19:00 +0200
        Re: encryption David Christensen <dpchrist@holgerdanske.com> - 2018-04-21 22:30 +0200
      Re: encryption David Christensen <dpchrist@holgerdanske.com> - 2018-04-21 21:50 +0200
        Re: encryption David Wright <deblis@lionunicorn.co.uk> - 2018-04-22 18:20 +0200
          Re: encryption Brian <ad44@cityscape.co.uk> - 2018-04-22 18:50 +0200
            Re: encryption David Wright <deblis@lionunicorn.co.uk> - 2018-04-23 10:50 +0200
              Re: encryption Brian <ad44@cityscape.co.uk> - 2018-04-23 13:20 +0200
                Re: encryption David Wright <deblis@lionunicorn.co.uk> - 2018-04-24 20:50 +0200
  Re: encryption David Wright <deblis@lionunicorn.co.uk> - 2018-04-21 18:40 +0200
    Re: encryption Brian <ad44@cityscape.co.uk> - 2018-04-21 20:20 +0200
      Re: encryption David Wright <deblis@lionunicorn.co.uk> - 2018-04-21 21:00 +0200
        Re: encryption Brian <ad44@cityscape.co.uk> - 2018-04-21 21:20 +0200
          Re: encryption David Christensen <dpchrist@holgerdanske.com> - 2018-04-21 23:30 +0200
          Re: encryption David Wright <deblis@lionunicorn.co.uk> - 2018-04-22 04:30 +0200
            Re: encryption Curt <curty@free.fr> - 2018-04-22 11:20 +0200
              Re: encryption Reco <recoverym4n@gmail.com> - 2018-04-22 11:50 +0200
                Re: encryption Brian <ad44@cityscape.co.uk> - 2018-04-22 19:10 +0200
      Re: encryption David Christensen <dpchrist@holgerdanske.com> - 2018-04-21 22:50 +0200
    Re: encryption David Christensen <dpchrist@holgerdanske.com> - 2018-04-21 22:10 +0200
      Re: encryption David Wright <deblis@lionunicorn.co.uk> - 2018-04-22 04:00 +0200
        Re: encryption Brian <ad44@cityscape.co.uk> - 2018-04-22 17:40 +0200
          Re: encryption Richard Hector <richard@walnut.gen.nz> - 2018-04-23 08:00 +0200
            Re: encryption Andrew McGlashan <andrew.mcglashan@affinityvision.com.au> - 2018-04-23 09:00 +0200
        Re: encryption David Christensen <dpchrist@holgerdanske.com> - 2018-04-22 20:10 +0200

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