[42447] in Cypherpunks
Re: New release of CFS Unix encrypting file system available
daemon@ATHENA.MIT.EDU (Matt Blaze)
Fri Oct 27 16:53:51 1995
To: Scott Brickner <sjb@universe.digex.net>
Cc: cypherpunks@toad.com
In-Reply-To: Your message of "Fri, 27 Oct 1995 14:54:03 CDT."
<199510271954.PAA20647@universe.digex.net>
Date: Fri, 27 Oct 1995 16:36:36 -0400
From: Matt Blaze <mab@crypto.com>
> What happens to hard links?
>
> mkdir foo bar
> CFS_set_directory_key -directory ./foo -key foo-key
> CFS_set_directory_key -directory ./bar -key bar-key
This isn't how it works. You "attach" an encrypted directory to a
virtual namespace into which you write (and read) the cleartext. It's
similar to mounting a file system.
> cp /etc/passwd ./foo/test1
> ln ./foo/footest ./bar/bartest
> cmp ./foo/footest ./bar/bartest
Hard links don't work across different "attached" directories (just as
they don't work across different file systems).
-matt
