From: anon-remailer@utopia.hacktic.nl (Anonymous)
Date: Mon, 18 Mar 1996 18:47:53 +0800
To: cypherpunks@toad.com
Subject: Re: Backup of Encrypted Partition
In-Reply-To: <199603172221.OAA14725@squirrel.com>
Message-ID: <199603180230.DAA14930@utopia.hacktic.nl>
MIME-Version: 1.0
Content-Type: text/plain


Mark C. Henderson (mch@squirrel.com) wrote:
: On Mar 17, 18:38, Sanwar Ali wrote:
: } Subject: Backup of Encrypted Partition
: } Hi
: } 
: } Apologies if this is too much of a beginner's Q.
: } 
: } Does anyone know how to backup a "SecureDrive" partition onto tape 
: } quickly and easily.
: } 
: } HPACK is really slow.
: } 
: } PKZIP and then PGP is slow.
: } 
: } RAWDISK, seems to be quite complex (perhaps I am just stupid!), and I 
: } am terrified of making some sort of terrible mistake.
: } 
: } I have about 100MB in the partition.  I have a pretty out of date 
: } computer which is a 386 33MHz running Windows.
: 
: 
: Ease of backup is one of the strengths of CFS which is a cryptographic
: filesystem for various flavours of UNIX and Linux.


If you have Linux installed, you can backup your dos securedrive partition
by doing

cat /dev/hda2 >/dev/ftape
         ^^^^
         (or whatever your securedrive partition is)


No decrypting necessary.  If the partition is only 100MB then it ought to 
fit on a standard qic-80 tape.