freebsd-nq/crypto
Nick Sayer 0f8c8396c5 Add SRA authentication to src/crypto/telnet.
SRA does a Diffie-Hellmen exchange and then DES-encrypts the
authentication data. If the authentication is successful, it also
sets up a session key for DES encryption.

SRA was originally developed at Texas A&M University.

This code is probably export restricted (despite the fact that I
originally found it at a University in Germany).

SRA is not perfect. It is vulnerable to monkey-in-the-middle attacks
and does not use tremendously large DH constants (and thus an individual
exchange probably could be factored in a few days on modern CPU
horsepower). It does not, however, require any changes in user or
administrative behavior and foils session hijacking and sniffing.
The goal of this commit is that telnet and telnetd end up in the DES
distribution and that therefore an encrypted session telnet becomes
standard issue for FreeBSD.
1999-08-16 11:24:29 +00:00
..
kerberosIV
telnet Add SRA authentication to src/crypto/telnet. 1999-08-16 11:24:29 +00:00
README

This directory is for the EXACT same use as src/contrib, execpt it
holds crypto sources. As a consequence of USA law, this makes it export
controlled, so it has to be kept separate.

Please do not export the contents of this direcory and its
subdirectories from the USA without the necessary permits.

Mark Murray
3 May, 1997