LICENSE

Qabel Public License Version 0.1 (QaPL v0.1) (c) Qabel GmbH, Hannover

You may copy and distribute verbatim copies of this license agreement. You may
also use content from it for your own license agreement. Unless not expressly
stated, you may not use the name Qabel Public License ("QaPL") in connection
with any license agreement that is not a verbatim copy of This License.

PREAMBLE Today Software is the undisputed centerpiece of the information
society and access to software and information society services became a public
commodity. Yet traditional software is made available in object code only,
where the software user is not entitled to study or even modify the source
code. We believe that this is a salient shortcoming in particular when it comes
to software which is designed to help the user protect his privacy in a virtual
world. A proprietary software developer who refuses to unveil the source code
of its security software, requires users to place a great deal of faith into
the computer program and its ability to protect personal data. Not only because
trust in conventional software security was all too often disappointed, we have
decided to replace "trust" with "transparency" and everybody is welcome to
study, modify and improve the source code of this software. Furthermore, and
although we believe in the idea of free software, we have decided to make two
important exceptions, to wit, QaPL-licensed software should neither be used
commercially without our consent, nor for military, intelligence or related
purposes. By that we hope to make it a powerful, self sustaining and constantly
evolving tool that helps to reinforce data security and the protection of
personal data. However, it shall be up to the user to decide whether he finds
this software fit for the purpose. 

[0] Definitions 
[a] "Application" means any software that may be, directly or indirectly,
linked to the Library by using its interface.  
[b] "Commercial use" means utilizing the Library or other software licensed
under the QaPL or parts thereof to, directly or indirectly, establish a source
of income, including but not limited to, embedding the Library or other
software licensed under the QaPL or parts thereof into Proprietary Software,
executable software, or consulting services utilizing the Library or other
software licensed under the QaPL or parts thereof. It is not considered
Commercial Use if the Licensee, including a commercial enterprise, uses the
Library or other software licensed under the QaPL or parts thereof for internal
or for academic and/or study purposes, or if the project is solely based on
donations.  
[c] "Original Copyright Holder" means Qabel GmbH.  
[d] "Contributor" means any person or entity that creates or contributes to the
creation of modifications to the Library or other software licensed under the
QaPL.  
[e] "Library" means a collection of software functions, subroutines and/or data
prepared so as to be conveniently linked with Applications (which use some of
those functions and data) to form executables including associated
documentation.  
[f] "Licensee" means any individual or legal entity exercising rights under the
QaPL.  
[g] "Make Publicly Available" refers to the public distribution of the Library
or other software licensed under the QaPL in an immaterial form, including but
not limited to, making it available for download in data networks and Software
as a Service (SaaS).  
[h] "Modification" means any change to the Library or other software licensed
under the QaPL in a way that would, under the applicable law, require the
copyright holder's permission, including but not limited to the extension,
deletion, alteration, translation into other programming languages or
combination with other software.  
[i] "Modification of the Library" means the Library or its derivatives
containing the Library as a whole or in parts and Applications or any other
software that are linked to the Library.  
[j] "Object Code" means any machine-readable form of the Library or other
software licensed under the QaPL, excluding the Source Code.  
[k] "Proprietary Software" means software that is not licensed under an open
source license as defined by the open source definition (Version 1.9).  
[l] "Source Code" means the preferred form of the Library or other software
licensed under the QaPL for making Modifications to it.
[m] "This License" means the Qabel Public License regardless of its version.
 
[1] Scope of Application The QaPL applies to any software library or other
software that contains a notice placed by the copyright holder or another
authorised party stating that the Library or other software is governed by the
terms of the QaPL. This license shall also apply to remote network interaction. 

[2] License Grant and Conditions
[a] As far as This License is not restricted according to sec. [3], Licensee
may free of charge and in any medium modify, reproduce, distribute, and Make
Publicly Available the Library or other software licensed under the QaPL.
[b] Licensee may distribute, and Make Publicly Available unmodified versions,
of the Library or other software licensed under the QaPL provided that the
following condition is met: A conspicuous reference to the text of This License
that allows any recipient to easily access the text of This License must be
provided.
[c] Licensee may distribute, and Make Publicly Available modified versions, of
the Library or other software licensed under the QaPL provided that, in
addition to the conditions stated in sec. [2][b], the following conditions are
met: The files modified must bear notices which state that the files were
changed, the date of change and the author of the Modification.  The Library or
other software licensed under the QaPL must in its entirety be licensed free of
charge to all third parties under the terms of This License.
[d] If you wish to distribute or Make the Library or other software licensed
under the QaPL, modified or unmodified, Publicly Available in Object Code form
only, you must in addition to the forgoing make the complete Source Code
publicly available or ensure that the Original Copyright Holder does so and
make a conspicuous reference to the internet address from which the Source Code
may be downloaded.

[3] Restrictions
[a] No license is granted by the Original Copyright Holder for the Commercial
Use of the Library or other software licensed under the QaPL. In particular, no
license is granted for linking Applications to the Library which shall be used
commercially. If you would like to use the Library or other software licensed
under the QaPL for commercial purposes or link to an Application that shall be
used commercially, including selling an Application that shall be linked to the
Library or other software licensed under the QaPL, please inquire with the
Original Copyright Holder.
[b] No license is granted by the Original Copyright Holder for military,
intelligence or related purposes, including but not limited to intelligence and
military research.

[4] Contributor's License Grant 
[a] A Contributor, who distributes or makes publicly available a Modification,
hereby grants the Original Copyright Holder a perpetual, irrevocable,
worldwide, free of charge, royalty-free, non-exclusive, unrestricted license
that may be subject to third party property claims, to use, reproduce, modify,
display, perform, sublicense, distribute, Make Publicly Available, commercially
exploit and exercise all ownership rights in the Contributors contribution.
Contributor hereby agrees that he will not assert any moral rights in his
contribution against the Original Copyright Holder. 
[b] A contributor, who distributes or makes publicly available a Modification,
hereby grants to the Original Copyright Holder a perpetual, worldwide,
non-exclusive, free-of-charge, royalty-free patent license to make, have made,
use, offer to sell, sell, import, and otherwise transfer the Library or other
software licensed under the QaPL. Where such license applies it shall only
apply to those patent claims licensable by the Contributor that are necessarily
infringed by their contributions alone or by combination of their contributions
with the Library or other software licensed under the QaPL with which such
contribution was combined.
[c] Contributor represents and warrants that his contribution is his own
original creation and to the best of his knowledge he can legally grant the
rights in his contribution set out in This License and, where applicable, is
authorised by his employer and that the Original Copyright Holder exercising
the rights granted under this license does, to the best of the Contributors
knowledge, not infringe any third party rights. Contributor further represents
that he is not aware of any claims, suits or court actions in relation to his
contribution. Contributor agrees that he will immediately notify the Original
Copyright Holder if he becomes aware of any third party claims and, if the
Contributor after having submitted or otherwise distributed his contribution,
becomes aware of a third party claim in relation to his contribution, shall
promptly take all reasonable measures to mitigate damages resulting from the
infringement of third party claims, including but not limited to informing
those who may have received software containing the contribution. 

[5] Conclusion of Contract 
[a] This License constitutes the offer to conclude a contract to use the
Library or other software licensed under the QaPL in compliance with the
conditions of This License. Acceptance may be declared by exercising the right
granted under sec. [2] of This License. 
[b] All Licensees obtain the rights granted by This License directly from the
Original Copyright Holder. Without having to accept This License the Library or
other software may still be used in accordance with the applicable statutory
provisions.

[6] Termination The rights granted under This License will terminate
automatically if the Licensee fails to comply with its terms. 

[7] Warranty and Liability 
[a] The copyright holders are not liable for contradictory third-party rights,
unless they were aware of such rights without informing the Licensee.
[b] Liability for damages arising out of the use or inability to use the
Library or other software licensed under the QaPL, including but not limited to
software failure, data loss, data being rendered inaccurate, a failure of the
software to operate with any other program and any other defects in the Library
or other software licensed under the QaPL, shall be governed by separate
agreements, or, if no such agreement exists, by the applicable statutory
provisions. 

[8] License Updates Qabel GmbH or its legal successors may, from
time to time, revise and update the QaPL in order to address new developments
and concerns. These revisions and updates will reflect the spirit of the
current license version and will not impose on any Licensee or copyright holder
additional obligations. QaPL license updates shall replace all older license
versions in existing agreements. This does not apply to original copyright
holders other than Qabel GmbH, who have chosen to submit their program to the
QaPL, unless they have designated their program as licensed under "QaPL 0.1
or any later version".

[9] Miscellaneous 
[a] This License shall be governed by German Law. The
application of the UN Convention on the International Sale of Goods (CISG) and
the principles of conflict of laws shall be excluded.
[b] If you wish to incorporate parts of the Library or other software licensed
under the QaPL into other software whose license terms contradict with the
provisions of this license, you may inquire with either the Original Copyright
Holder or the copyright holder of the other software on possible exceptions. 
[c] If, under the applicable law, any provision of This License is or becomes
invalid or unenforceable, it shall not affect the validity or enforceability of
the remainder of the terms of This License, and without further action by the
parties to This License, such provision shall be reformed to the minimum extent
necessary to make such provision valid and enforceable.

+++++++++++++++++ 
Appendix:
Feel free to use the QaPL for your own software
project. In that case you may replace Qabel GmbH as the Original Copyright
Holder as stated in Sec. [0][c] with your own name or entity. It is recommended
to affix the following copyright notice to your software

"Copyright (C) 20[yy] [Name of the original copyright holder]

This Program may be used by anyone in accordance with the terms and conditions
of the Qabel Public License (QaPL)."

The full license text may be accessed under <http://www.qabel.de>