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https://github.com/apache/incubator-tuweni

Apache Tuweni is a set of libraries and other tools to aid development of blockchain and other decentralized software in Java and other JVM languages. It includes a low-level bytes library, serialization and deserialization codecs (e.g. RLP), various cryptography functions and primatives, and lots of other helpful utilities.
https://github.com/apache/incubator-tuweni

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Apache Tuweni is a set of libraries and other tools to aid development of blockchain and other decentralized software in Java and other JVM languages. It includes a low-level bytes library, serialization and deserialization codecs (e.g. RLP), various cryptography functions and primatives, and lots of other helpful utilities.

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README 

        
# Tuweni: Apache Core Libraries for Java (& Kotlin)



[![Slack](https://img.shields.io/badge/slack-%23tuweni-72eff8?logo=slack)](https://s.apache.org/slack-invite)

[![Github build](https://github.com/apache/incubator-tuweni/workflows/assemble/badge.svg)](https://github.com/apache/incubator-tuweni/actions)

[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://github.com/incubator-tuweni/blob/main/LICENSE)

[![Maven Central](https://maven-badges.herokuapp.com/maven-central/org.apache.tuweni/tuweni-tuweni/badge.svg?style=plastic)](https://maven-badges.herokuapp.com/maven-central/org.apache.tuweni/tuweni-tuweni)



![logo](tuweni.png)



See our [website](https://tuweni.apache.org) for details on the project.



Tuweni is a set of libraries and other tools to aid development of blockchain and other decentralized software in Java and other JVM languages.



It includes a low-level bytes library, serialization and deserialization codecs (e.g. [RLP](https://github.com/ethereum/wiki/wiki/RLP)), various cryptography functions and primatives, and lots of other helpful utilities.



Tuweni is developed for JDK 11 or higher.



## Clone along with submodules ##

    git clone https://github.com/apache/incubator-tuweni.git tuweni

    cd tuweni

    git submodule update --init --recursive



### Build the project ###

#### With Gradle and Java ####

Install JDK 11.



Run:



`$>./gradlew build`



After a successful build, libraries will be available in `build/libs`.



## Contributing



Your contributions are very welcome! Here are a few links to help you:



- [Issue tracker: Report a defect or feature request](https://issues.apache.org/jira/projects/TUWENI/issues)

- [StackOverflow: Ask "how-to" and "why-didn't-it-work" questions](https://stackoverflow.com/questions/ask?tags=tuweni)



## Mailing lists



- [[email protected]]([email protected]) is for usage questions, help, and announcements. [subscribe]([email protected]?subject=send%20this%20email%20to%20subscribe), [unsubscribe]([email protected]?subject=send%20this%20email%20to%20unsubscribe), [archives](https://www.mail-archive.com/[email protected]/)

- [[email protected]]([email protected]) is for people who want to contribute code to Tuweni. [subscribe]([email protected]?subject=send%20this%20email%20to%20subscribe), [unsubscribe]([email protected]?subject=send%20this%20email%20to%20unsubscribe), [archives](https://www.mail-archive.com/[email protected]/)

- [[email protected]]([email protected]) is for commit messages and patches to Tuweni. [subscribe]([email protected]?subject=send%20this%20email%20to%20subscribe), [unsubscribe]([email protected]?subject=send%20this%20email%20to%20unsubscribe), [archives](https://www.mail-archive.com/[email protected]/)



## More information



- [Official website](https://tuweni.apache.org)

- [GitHub project](https://github.com/apache/incubator-tuweni)



# License



Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE

file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file

to You under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0



Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on

an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the

specific language governing permissions and limitations under the License.



# Crypto Notice



This distribution includes cryptographic software. The country in which you

currently reside may have restrictions on the import, possession, use, and/or

re-export to another country, of encryption software. BEFORE using any

encryption software, please check your country's laws, regulations and

policies concerning the import, possession, or use, and re-export of encryption

software, to see if this is permitted. See [http://www.wassenaar.org] for

more information.



The Apache Software Foundation has classified this software as Export Commodity

Control Number (ECCN) 5D002, which includes information security software using

or performing cryptographic functions with asymmetric algorithms. The form and

manner of this Apache Software Foundation distribution makes it eligible for

export under the "publicly available" Section 742.15(b) exemption (see the BIS

Export Administration Regulations, Section 742.15(b)) for both object code and

source code.

The following provides more details on the included cryptographic software:

* [Bouncy Castle](http://bouncycastle.org/)

* [Apache Tuweni crypto](./crypto)