On Wed, May 24, 2000 at 10:45:14PM +1000, Angus Lees wrote:
> On Wed, May 24, 2000 at 08:24:53PM +1000, [EMAIL PROTECTED] wrote:
> > I can't recall if there is a pgpdisk (pgpmount?) for Linux.
>
> i hope it doesn't use standard pgp algorithms (public key) for
> encrypting the disk..
pgp/gpg (and ssh for that matter) use a hybrid algorithm: both a
fast stream cipher and public key encryption are used. The actual
data is encrypted with the stream cipher (eg. idea) and the
cipher key (which is randomly generated each session) is encrypted
using the public key algorithm (eg. rsa).
Thus the encrypt/decrypt speed approaches that of the stream cipher,
but you still get the advantages of a public key system. eg. for a
filesystem, someone else can create a file[system] which only you
can access.
Conrad.
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