The ISC license for bind is:

------
# Copyright (c) 1993-1999 by Internet Software Consortium.
##
## Permission to use, copy, modify, and distribute this software for any
## purpose with or without fee is hereby granted, provided that the
above
## copyright notice and this permission notice appear in all copies.
##
## THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
DISCLAIMS
## ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
WARRANTIES
## OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
## CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
CONSEQUENTIAL
## DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
## PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
TORTIOUS
## ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
OF THIS
## SOFTWARE.

   Internet Software Consortium
   950 Charter Street
   Redwood City, CA 94063
   Tel: 1-888-868-1001
   Fax: 1-650-779-7055
   Email: licensing@isc.org
------

The RSA license is:

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                        DNSSAFE LICENSE TERMS

This BIND software includes the DNSsafe software from RSA Data
Security, Inc., which is copyrighted software that can only be
distributed under the terms of this license agreement.

The DNSsafe software cannot be used or distributed separately from the
BIND software.  You only have the right to use it or distribute it as
a bundled, integrated product.

The DNSsafe software can ONLY be used to provide authentication for
resource records in the Domain Name System, as specified in RFC 2065
and successors.  You cannot modify the BIND software to use the
DNSsafe software for other purposes, or to make its cryptographic
functions available to end-users for other uses.

If you modify the DNSsafe software itself, you cannot modify its
documented API, and you must grant RSA Data Security the right to use,
modify, and distribute your modifications, including the right to use
any patents or other intellectual property that your modifications
depend upon.

You must not remove, alter, or destroy any of RSA's copyright notices
or license information.  When distributing the software to the Federal
Government, it must be licensed to them as "commercial computer
software" protected under 48 CFR 12.212 of the FAR, or 48 CFR
227.7202.1 of the DFARS.

You must not violate United States export control laws by distributing
the DNSsafe software or information about it, when such distribution
is prohibited by law.

THE DNSSAFE SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY
WHATSOEVER.  RSA HAS NO OBLIGATION TO SUPPORT, CORRECT, UPDATE OR
MAINTAIN THE RSA SOFTWARE.  RSA DISCLAIMS ALL WARRANTIES, EXPRESS,
IMPLIED OR STATUTORY, AS TO ANY MATTER WHATSOEVER, INCLUDING ALL
IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY RIGHTS.

If you desire to use DNSsafe in ways that these terms do not permit,
please contact RSA Data Security, Inc., 100 Marine Parkway, Redwood
City, California 94065, USA, to discuss alternate licensing
arrangements.
------

FYI: the use of RSA-based public key cryptography is the recommended
authentication algorithm for DNSSEC.  Until the RSA patent expires, the
only way we can distribute BIND with RSA in the US is with DNSsafe.

Regards,
-drc