The Secure Spread Non-Commercial License

SECURE SPREAD is a software package that is intended to provide secure group communications and reliable multicast services across local and wide area networks such as the Internet. SECURE SPREAD includes computer software and may include associated media, printed materials, and ``online'' or electronic documentation. By installing, copying or otherwise using SECURE SPREAD, you agree to be bound by the terms of this License. Read its terms very carefully. If you do not agree to these terms, do not install or use SECURE SPREAD.

This License is granted by the copyright owners of SECURE SPREAD: The Johns Hopkins University.

SECURE SPREAD is protected by the copyright laws of the United States of America and international copyright treaties.

This software uses a Blowfish implementation that is derived from Blowfish code written by Bruce Schneider (http://www.counterpane.com/blowfish.html).

Terms

(a) You are granted a perpetual, royalty-free, non-exclusive license, subject to the claims of any third parties, to use SECURE SPREAD Version 1.0 or lower for non-commercial, education, or research purposes only.

(b) Any use or distribution you make of SECURE SPREAD is subject to this License.

(c) Any software or system which uses SECURE SPREAD must display a statement with the following information: SECURE SPREAD is copyrighted by the above owners, the official SECURE SPREAD website is http://www.cnds.jhu.edu/research/group/secure_spread, SECURE SPREAD is provided subject to this License and that SECURE SPREAD is provided AS IS, with NO WARRANTY. This statement must be displayed in the documentation, in any material which describes the rights of the recipient, in any screen describing credits if the software has a user-visible interface, and on any web page describing credits.

(d) You are free to publish (in print or electronic form) your work involving SECURE SPREAD, including performance benchmarks, provided you credit SECURE SPREAD's copyright owners, and provide a copy of what you publish to Yair Amir at yairamir@cs.jhu.edu.

(e) TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, SECURE SPREAD IS PROVIDED UNDER THIS LICENSE ON AN AS IS BASIS, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES THAT SECURE SPREAD IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR NON-INFRINGING. ALL WARRANTIES ARE DISCLAIMED AND THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER.

(f) TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR BE LIABLE FOR ANY SPECIAL, INCIDENTAL, INDIRECT, OR CONSEQUENTIAL DAMAGES FOR LOSS OF PROFITS, REVENUE, OR FOR LOSS OF INFORMATION OR ANY OTHER LOSS.

(g) You expressly agree to forever indemnify, defend and hold harmles the initial developers and contributors of SECURE SPREAD against all claims, demands, suits or other actions arising directly or indirectly from your acceptance and use of SECURE SPREAD.

(h) This license shall be goverened by the laws of the State of Maryland and the United States of America.

(i) Each contributor hereby grants to the copyright owners and you the same rights to their modifications that you are granted in the above sections. Each contributor also grants to the copyright owners a world-wide, royalty-free, perpetual, non-exclusive license, subject to third party intellectual property claims: to use, reproduce, modify, display, perform, sub-license, sell, and distribute the contributor's modifications in future versions of SECURE SPREAD, or other software developed by the copyright owners, even if such software is released under a different license.

Exhibit A.

``The contents of this file are subject to the Secure Spread Non-Commercial License, Version 1.0 (the ``License''); you may not use this file except in compliance with the License. You may obtain a copy of the License at:

http://www.cnds.jhu.edu/research/group/secure_spread/license/

Software distributed under the License is distributed on an AS IS basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the specific language governing rights and limitations under the License.

The Original Code is: The SECURE SPREAD Library.

The Initial Developers of the Original Code are: Yair Amir, Cristina Nita-Rotaru, John Schultz and Jonathan Stanton.

All Rights Reserved.''