util/README at master · opentelecoms-org/util · GitHub

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Overview
--------

This is a collection of classes that have been found to be useful
in unified communications / VoIP projects

Some of the classes are a fresh implementation from OpenTelecoms.org,
and others have been obtained from other open source projects and
possibly adapted in some way.

This code is used to support a range of projects:

  https://lumicall.org             Lumicall SIP dialer for Android

  https://opentelecoms.org/zrtp    OpenTelecoms.org ZRTP stack for Java

Please see the OpenTelecoms.org web site for more details about
secure Federated VoIP (including SIP and Jabber/XMPP):

  https://opentelecoms.org/

Building
--------

This project uses the Maven build system.

To build the library without Javadoc and install it to the local Maven
repository:

$ mvn install -Dmaven.javadoc.skip=true

Crypto classes
--------------

Export notice: no actual cryptographic code is included, so export
restrictions do not apply.

These are helper classes for Java cryptography applications.  See
comments in the classes for details.

Copyright (C) 2012 Daniel Pocock <daniel@pocock.pro>
                   https://danielpocock.com

Licensed under GPL v3

CSV classes
-----------

These are helper classes for comma-separated-values (CSV) files.
See comments in the classes for details.

Copyright (C) 2012 Daniel Pocock <daniel@pocock.pro>
                   https://danielpocock.com

Licensed under GPL v3

DNS classes
-----------

These are helper classes for DNS (particularly SRV records).  See
comments in the classes for details

The classes depend on org.xbill.DNS (DNS Java) which is BSD licensed:
https://www.dnsjava.org/

Copyright (C) 2012 Daniel Pocock <daniel@pocock.pro>
                   https://danielpocock.com

Base64
------

http://iharder.sourceforge.net/current/java/base64/

License info from the author's web site:
"A Note About Public Domain:
I have released this software into the Public Domain. That means you can do whatever you want with it. Really. You don't have to match it up with any other open source license &em; just use it. You can rename the files, move the Java packages, whatever you want. If your lawyers say you have to have a license, contact me, and I'll make a special release to you under whatever reasonable license you desire: MIT, BSD, GPL, whatever."

Copyright 2012 Robert Harder https://sourceforge.net/users/rharder

CRC-32C
-------

Adapted from the CRC-32C implementation in the Apache Hadoop project.

Copyright (C) 2012 Daniel Pocock <daniel@pocock.pro>
                   https://danielpocock.com

Distributed under the terms of the GPL v3 license.

Based on work from the Apache Software Foundation, distributed under
the Apache license v2.0 http://www.apache.org/licenses/LICENSE-2.0

With contributions from:
Copyright (c) 2004-2006 Intel Corportation (BSD license)

IPAddressUtil
-------------

Copyright (c) 2004, 2005, Oracle and/or its affiliates (GPL 2 license)