Brainpool4OpenSSH Files

OpenSSH Brainpool patch:
------------------------

This patch is for OpenSSH 6.6-p1 and OpenSSL 1.0.2-beta1 or newer.

Please note that OpenSSL 1.0.2-beta1 suffers from heartbleed, so please use the next (not yet available)
version for production environments (although TLS functionality is obviously not used by OpenSSH).

Installation instructions:
--------------------------

1.) Get OpenSSL 1.0.2-beta1 or newer (only this version includes Brainpool EC).
2.) Build and install it.
3.) Get OpenSSH 6.6-p1.
4.) Patch the source using the patch file, e.g.
    cd openssh-6.6p1
	patch -p1 < <patch file>
5.) Execute "autoreconf".
6.) Configure OpenSSH, e.g.:
    ./configure --prefix=<install dir> --with-ssl-dir=<ssl install dir from 2.)> 
	--with-cppflags="-I<ssl install dir from 2.)>/include" 
	--with-ldflags="-L<ssl install dir from 2.)>/lib"	
7.) Build and install it.	

Usage instructions:
-------------------

Just execute ssh-keygen to get an online help. This "-b" (bits) switch was extended to support not
only bit lengths but also 'friendly curve names'. The Brainpool curves can be selected via:

brainpoolP256r1
brainpoolP256t1
brainpoolP384r1
brainpoolP384t1
brainpoolP512r1
brainpoolP512t1

You can also use these 'nick names' for NIST curves:

nistp256
nistp384
nistp521