1995-07-31 - Re: ssh protocol

Header Data

From: ghio@cmu.edu (Matthew Ghio)
To: cypherpunks@toad.com
Message Hash: e0438d859d2dce8b33ea332a17e012deaa266c00f3393541d16f8a1112a79770
Message ID: <9507312036.AA08394@toad.com>
Reply To: <199507310737.JAA06792@cnam.fr>
UTC Datetime: 1995-07-31 20:36:58 UTC
Raw Date: Mon, 31 Jul 95 13:36:58 PDT

Raw message

From: ghio@cmu.edu (Matthew Ghio)
Date: Mon, 31 Jul 95 13:36:58 PDT
To: cypherpunks@toad.com
Subject: Re: ssh protocol
In-Reply-To: <199507310737.JAA06792@cnam.fr>
Message-ID: <9507312036.AA08394@toad.com>
MIME-Version: 1.0
Content-Type: text/plain


Tatu Ylonen <ylo@cs.hut.fi> wrote:
> The basic idea behind the protocol goes roughly like this:
>   1. Exchange session keys using Diffie-Hellman
>   2. Each side sends a signature of the Diffie-Hellman exchange (the
>      signature can be with any of a number of algorithms; RSA and
>      Elliptic Curve systems have been defined).

I've been playing with the cryptotcp program available from utopia..  It
has some bugs but works pretty well, if you don't mind waiting 20-30
seconds at the beginning.  It does a Diffie-Hellman exchange and 3DES over
telnet.  How hard would it be to add some sort of authentication to this
program?






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