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Date:      Sat, 14 Aug 1999 13:56:23 -0700
From:      Nick Sayer <nsayer@quack.kfu.com>
To:        Kris Kennaway <kris@hub.freebsd.org>
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: Whither makefiles for src/crypto/telnet/* ?
Message-ID:  <37B5D7F7.B5465780@quack.kfu.com>
References:  <Pine.BSF.4.10.9908141115190.78768-100000@hub.freebsd.org>

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Kris Kennaway wrote:
> 
> On Sat, 14 Aug 1999, Sheldon Hearn wrote:
> 
> > On Fri, 13 Aug 1999 23:42:48 MST, "Dave Walton" wrote:
> >
> > > If you really want to work on an encrypted telnet, check out The
> > > Stanford SRP Authentication Project (http://srp.stanford.edu/srp/).
> > > I'd love to see SRP integrated into the FreeBSD telnet/telnetd.
> >
> > Cool, another non-exportable system available to US users only. :-)
> 
> Not true: SRP used for authentication only does exponentiation and modulo
> operation on large integers..no cryptographic primitives, so it's freely
> exportable. The SRP distribution does also contain code which encrypts the
> data stream after authentication, which is restricted from export, but on
> the other hand it's also not hard to put back.

SRA is not in the same boat there. It uses Diffie-Hellmen to obtain a
shared
secret and then passes the authentication information from client to
server with DES.
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