This is Debian/GNU Linux's prepackaged version of SSH (Secure Shell). This package was built by Philip Hands , who took it over from Jan Camenisch who originally Debianized it, from the ssh sources obtained from: ftp://ftp.cs.hut.fi/pub/ssh ----------------------------------------------------------------------- Copyright: SSH (Secure Shell) NON-COMMERCIAL LICENSE (Version 1, May 27th, 1996) Copyright (C) 1995, 1996 SSH Communications Security Ltd., Finland . All rights reserved. For commercial licensing please contact Data Fellows, Ltd. Data Fellows has exclusive licensing rights for the technology for commercial purposes. Data Fellows offers commercial versions of SSH with maintenance agreements in addition to various licensing options for the technology itself. You can contact Data Fellows at , http://www.datafellows.com/, tel Int.+358-0-478 444 or fax Int.+358-0-4784 4599. This License applies to the computer program(s) known as "SSH (Secure Shell)." The "Program", below, refers to such program, and a "work based on the Program" means either the Program or any derivative work of the Program, such as a translation or a modification. The Program is a copyrighted work whose copyright is held by SSH Communications Security (the "Licensor"). BY USING, MODIFYING AND/OR DISTRIBUTING THE PROGRAM (OR ANY WORK BASED ON THE PROGRAM), YOU INDICATE YOUR ACCEPTANCE OF THIS LICENSE, AND ALL ITS TERMS AND CONDITIONS FOR COPYING, DISTRIBUTING OR MODIFYING THE PROGRAM OR WORKS BASED ON IT. NOTHING OTHER THAN THIS LICENSE GRANTS YOU PERMISSION TO USE, MODIFY AND/OR DISTRIBUTE THE PROGRAM OR ITS DERIVATIVE WORKS. THESE ACTIONS ARE PROHIBITED BY LAW. IF YOU DO NOT ACCEPT THESE TERMS AND CONDITIONS, DO NOT USE, MODIFY AND/OR DISTRIBUTE THE PROGRAM. 1. Licenses. Licensor hereby grants you the following rights, provided that you comply with all of the restrictions set forth in this License and provided, further, that you distribute an unmodified copy of this License with the Program: (a) You may copy and distribute literal (i.e., verbatim) copies of the Program's source code as you receive it throughout the world, in any medium. Local regulations may exist which limit your rights to distribute or use cryptographic software. The Licensor is not responsible for unauthorized distribution or use of the Program in such territories. (b) You may use the program for non-commercial purposes only, meaning that the program must not be sold commercially as a separate product, as part of a bigger product or project, or otherwise used for financial gain without a separate license. Please see Section 2, Restrictions, for more details. Use by individuals and non-profit organizations is always allowed. Companies are permitted to use this program as long as it is not used for revenue-generating purposes. For example, an Internet service provider is allowed to install this program on their systems and permit clients to use SSH to connect; however, actively distributing SSH to clients for the purpose of providing added value requires separate licensing. Similarly, a consultant may freely install this software on a client's machine for his own use, but if he/she sells the client a system that uses SSH as a component, a separate license is required. If a company includes this program or a derivative work thereof, as part of its product, commercial licensing is required. (c) You may build derived versions of this software under the restrictions stated in Section 2, Restrictions, of this license. The derived versions must be clearly marked as such and must be called by a name other than SSH or F-Secure SSH. SSH and F-Secure SSH are trademarks of SSH Communications Security and Data Fellows. All derived versions of the Program must be made freely available under the terms of this license. SSH Communications Security and Data Fellows must be given the right to use the modified source code in their products without any compensation and without being required to separately name the parties whose modifications are being used. 2. Restrictions. (a) Distribution of the Program or any work based on the Program by a commercial organization to any third party is prohibited if any payment is made in connection with such distribution, whether directly (as in payment for a copy of the Program) or indirectly (as in payment for some service related to the Program, or payment for some product or service that includes a copy of the Program "without charge", or payment for some product or service the delivery of which requires for the recipient to retrieve/download or otherwise obtain a copy of the Program; these are only examples, and not an exhaustive enumeration of prohibited activities). As an exception to the above rule, putting this program on CD-ROMs containing other free software is explicitly permitted even when a modest distribution fee is charged for the CD, as long as this software is not a primary selling argument for the CD. (b) Activities other than copying, distribution and modification of the Program are not subject to this License and they are outside its scope. Functional use (running) of the Program is not restricted. (c) You must meet all of the following conditions with respect to the distribution of any work based on the Program: (i) All modified versions of the Program, must carry prominent notice stating that the Program has been modified. The notice must indicate who made the modifications and how the Program's files were modified and the date of any change; (ii) You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part thereof, to be licensed as a whole and at no charge to all third parties under the terms of this License; (iii) You must cause the Program, at each time it commences operation, to print or display an announcement including an appropriate copyright notice and a notice that there is no warranty (or else, saying that you provide a warranty). The notice must also tell the user how to view the copy of the License included with the Program, and state that users may redistribute the Program only under the terms of this License; (iv) You must accompany any such work based on the Program with the complete corresponding machine-readable source code, delivered on a medium customarily used for software interchange. The source code for a work means the preferred form of the work for making modifications to it; (v) If you distribute any written or printed material at all with the Program or any work based on the Program, such material must include either a written copy of this License, or a prominent written indication that the Program or the work based on the Program is covered by this License and written instructions for printing and/or displaying the copy of the License on the distribution medium; (vi) You may not change the terms in this License or impose any further restrictions on the recipient's exercise of the rights granted herein. 3. Reservation of Rights. No rights are granted to the Program except as expressly set forth herein. You may not copy, modify, sublicense, or distribute the Program except as expressly provided under this License. Any attempt otherwise to copy, modify, sublicense or distribute the Program is void, and will automatically terminate your rights under this License. However, parties who have received copies, or rights, from you under this License will not have their licenses terminated so long as such parties remain in full compliance. 4. Limitations. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY USE, MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 5. General. Some of the source code aggregated with this distribution is licensed by third parties under different terms, so the restrictions above may not apply to such components. We do not imply to give any licenses to any patents or copyrights held by third parties. As far as we know, all included source code is used in accordance with the relevant license agreements and can be used and distributed freely for any purpose (the GNU license being the most restrictive); see below for details. The RSA algorithm and even the concept of public key encryption are claimed to be patented in the United States. These patents may interfere with your right to use this software. It is possible to compile the software using the RSAREF2 library by giving --with-rsaref on the configure command line. This may or may not make it legal to use this software for non-commercial purposes in the United States (we have sent a query about this to RSADSI (on July 10, 1995), but have not received a final answer yet). The RSAREF2 distribution is not included in this distribution, but can be obtained from almost any ftp site world-wide containing cryptographic materials. Using RSAREF is not recommended outside the United States. See "http://www.cs.hut.fi/crypto/" if you have trouble finding the RSAREF library. The IDEA algorithm is claimed to be patented in the United States and several other countries. We have been told by Ascom-Tech (the patent holder) that IDEA can be used freely for non-commercial use. A copy of their letter is at the end. The software can be compiled without IDEA by specifying the --without-idea option on the configure command line. The DES implementation in this distribution is derived from the libdes library by Eric Young . It can be used under the Gnu General Public License (libdes-COPYING) or the Artistic License (libdes-ARTISTIC), at your option. See libdes-README for more information. Eric Young has kindly given permission to distribute the derived version under these terms. The file crypt.c is fcrypt.c from SSLeay-0.4.3a by Eric Young; he permits free use. The GNU Multiple Precision Library, included in this release and linked into the executable, is distributed under the GNU Library Public License. A copy can be found in gmp-2.0/COPYING.LIB. The zlib compression library is copyright Jean-loup Gailly and Mark Adler. Anyone is permitted to use the library for any purpose. A copy of the license conditions can be found in zlib-1.0.3/README. The make-ssh-known-hosts script was contributed by Tero Kivinen and is distributed under the GNU General Public License. A copy can be found in gnu-COPYING-GPL. Some files, such as memmove.c and random.c, are owned by the Regents of the University of California, and can be freely used and distributed. License terms are included in the affected files. The file scp.c is derived from code owned by the Regents of the University of California, and can be used freely. The TSS encryption algorithm implementation in tss.c is copyright Timo Rinne and Cirion Oy. It is used with permission, and permission has been given for anyone to use it for any purpose as part of SSH. The MD5 implementation in md5.c was taken from PGP and is due to Colin Plumb. Comments in the file indicate that it is in the public domain. The 32-bit CRC implementation in crc32.c is due to Gary S. Brown. Comments in the file indicate it may be used for any purpose without restrictions. In some countries, particularly France, Russia, Iraq, and Pakistan, it may be illegal to use any encryption at all without a special permit, and the rumor is that you cannot get a permit for any strong encryption. If you are in the United States, you should be aware that while this software was written outside the United States using information publicly available everywhere, the United States Government may consider it a criminal offence to export this software from the United States once it has been imported. The rumor is that "the federal mandatory sentencing guidelines for this offence are 41 to 51 months in federal prison". The rumor says that the US government considers putting the software available on an ftp site the same as exporting it. Contact the Office of Defence Trade Controls if you need more information. Also, please write to your congress and senate representatives to get these silly and unconstitutional restrictions dropped. Note that any information and cryptographic algorithms used in this software are publicly available on the Internet and at any major bookstore, scientific library, and patent office world-wide. More information can be found e.g. at "http://www.cs.hut.fi/crypto/". The legal status of this program is some combination of all these permissions and restrictions. Use only at your own responsibility. You will be responsible for any legal consequences yourself; we are not making any claims whether possessing or using this is legal or not in your country, and we are not taking any responsibility on your behalf. Below is a copy of a message that we received from Ascom, the holder of the IDEA patent. Date: Tue, 15 Aug 95 09:09:59 CET From: IDEA@ascom.ch (Licensing Systec) Encoding: 3001 Text To: ylo@cs.hut.fi Subject: Phone Call 15.8.95 Dear Mr. Ylonen Thank you for your inquiry about the IDEA encryption algorithm. Please excuse the delay in answering your fax sent 26.6.95. Here is the information you requested : Non commercial use of IDEA is free. The following examples (regarding PGP) should clarify what we mean by commercial and non-commercial use Here are some examples of commercial use of PGP: 1. When PGP is used for signing and/or encrypting e-mail messages exchanged between two corporations. 2. When a consultant uses PGP for his communications with his client corporations. 3. When a bank makes PGP available to its clients for telebanking and charges them money for it (directly or indirectly). 4. When you use the software you receive from a company for commercial purposes (telebanking included). Some examples of non commercial use: 1. When an individual uses PGP for his private communications. 2. When an individual obtains PGP on the Internet and uses it for telebanking (assuming this is approved by the bank). 3. When you use the software you receive from a company for private purposes (telebanking excluded). You may use IDEA freely within your software for non commercial use. If you include IDEA in your software, it must include the following copy right statement : 1. Copyright and Licensing Statement IDEA(tm) is a trademark of Ascom Systec AG. There is no license fee required for non-commercial use. Commercial users of IDEA may obtain licensing information from Ascom Systec AG. e-mail: IDEA@ascom.ch fax: ++41 64 56 59 54 For selling the software commercially a product license is required: The PRODUCT LICENSE gives a software developer the right to implement IDEA in a software product and to sell this product worldwide. With the PRODUCT LICENSE we supply a source listing in C and a software manual. We charge an initial fee per company and a percentage of sales of the software product or products (typically between .5 and 4 per cent of the sales price, depending on the price and the importance of IDEA for the product). For further information please do not hesitate to contact us. Best regards, Roland Weinhart Ascom Systec Ltd IDEA Licensing @@@@@ @@@@@ @@@@@ @@@@@ @@@@@@@ Gewerbepark @ @ @ @ @ @ @ @ CH-5506 Maegenwil @@@@@ @@@@@ @ @ @ @ @ @ Switzerland @ @ @ @ @ @ @ @ @ Phone ++41 64 56 59 54 @@@@@ @@@@@ @@@@@ @@@@@ @ @ @ Fax ++41 64 56 59 98 --------------- There was a query about the modifications that Debian makes and the above copyright's requirement that the name be changed if the code was. Here is a portion of an e-mail that Tatu Ylonen send me that clarifies the point: ---- The main intention of the license is to avoid proliferation of slightly different competing versions. I don't see a problem with fixing bugs, especially if they are contained in the detached patch file. Please sent any bug fixes to ssh-bugs@cs.hut.fi so that they can be integrated into the distribution. Anyway, to clarify, you are hereby permitted to distribute the freeware version of SSH as a package for Debian Linux, linked against the shared gmp and possibly containing small bug fixes as you described. You are allowed to call the package "ssh" as long as there are no substantial changes to the protocol or the functionality. This of course does not imply any warranties, patent licenses, etc., and the distribution should contain the normal copyright notices etc. Best regards, Tatu Ylonen -- F-Secure Internet Security Solutions http://www.datafellows.com/f-secure Free Unix SSH http://www.cs.hut.fi/ssh ---- Cheers, Phil.