Nautilus: Secure Computer Telephony
- Platform: DOS, Linux, SunOS, Solaris.
Nautilus is software which allows two users to hold a secure conversation with either over ordinary phone lines or over a computer network.
Nautilus uses your computer's audio hardware to digitize and play back
your speech using speech compression algorithms built into the
program. It encrypts the compressed speech using your choice of the
Blowfish, Triple DES, or IDEA block ciphers, and transmits the
encrypted packets over the internet or your modem to another
computer. At the other end, the process is reversed. Nautilus
operates in half duplex mode like a speakerphone -- only one person
can talk at a time. Either user can hit a key to switch between
talking and listening. Audio quality ranges
from fair to very good depending on which of the four speech coders is
selected. The Nautilus WWW page
provides more detailed information.
Nautilus runs on IBM PC-compatible computers
(386DX25 or faster) under MSDOS or Linux as well as audio-capable Sun
workstations running SunOS or Solaris. The MSDOS version of Nautilus
requires a Soundblaster compatible sound card and currently only runs
over ordinary phone lines with a modem.
To use Nautilus over ordinary telephone lines, a modem capable
of connecting at 4800 bps or faster is required.
Nautilus is available in three different formats. As a DOS executable,
it is available as an archive in zip format along with it's associated
documentation. In source format, it is available as either a zip-ed
archive, or a gzip-compressed tar archive.
Nautilus is distributed freely (subject to US export restrictions) with
full source code. This insures that its security can be independently
examined and verified. Follow the instructions in the following
README files to obtain Nautilus.
- More information:
The Nautilus development team includes Bill Dorsey, Paul
Rubin, Andy Fingerhut, Paul Kronenwetter, Bill Soley, and Pat
Mullarky. To contact the developers, send email to
Section 1 of the
comp.speech FAQ Home Page.
Submit Information :
Last Revision: 10:41 07-Aug-1996