From: J. Michael Diehl <mdiehl@triton.unm.edu>
Date: Wed, 7 Apr 93 14:32:22 PDT
To: cypherpunks@toad.com
Subject: Re: Real-time BBS Encryption??
Message-ID: <9304072132.AA14268@triton.unm.edu>
MIME-Version: 1.0
Content-Type: text/plain


> Re: encrypting modem links
> >I'm wondering if there is a way to do this with PCs?  
> Yes, with difficulty, and not transparently.
> 
> >Is there a way to encrypt a remote users entire connection with
> >the BBS, so that they would have to have a special term program to access
> >the system?  
> 
> For PC's, replacing the terminal software is really the best way.
> There is no effective abstraction of serial port hardware in the PC
> world.  The int 0x14 driver in the BIOS was rampantly defective, and
> MSDOS does not provide a standard interface.

Or, we could impliment an "external protocal" like zmodem.  This would simply
take keystrokes, buffer them, then encrypt/decrypt them.

Make the source portable, and obtainable.