Difference between revisions of "GSOC2018 Projects"

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* C, C++
* C, C++
* Cryptography
* Cryptography
* JavaScript, if interested to work on the front-end components
Knowledge of Rust is a plus (Weld is implemented in Rust).
Also possibly interested in Go, Rust.
'''Mentors:''' [https://github.com/louridas Panos Louridas],[https://github.com/ergonomicon Georgios Tsoukalas]
'''Mentors:''' [https://github.com/louridas Panos Louridas],[https://github.com/ergonomicon Georgios Tsoukalas]

Revision as of 11:02, 23 January 2018

GFOSS project proposals for GSOC 2018. Students interested to participate should check which of the following projects fits their interests and skills. Practical information for students

Proposed Projects for GSOC 2018

LTSP- Epoptes[edit | edit source]

Brief Explanation:[edit | edit source]

The Linux Terminal Server Project adds thin client support to Linux servers. LTSP is a flexible, cost effective solution that is empowering schools, businesses, and organizations all over the world to easily install and deploy thin clients.                                                  

Epoptes (Επόπτης  - a Greek word for overseer) is an open source computer lab management and monitoring tool. It allows for screen broadcasting and monitoring, remote command execution, message sending, imposing restrictions like screen locking or sound muting the clients and much more! 

Related GitHub repositories:[edit | edit source]



Example Improvements:[edit | edit source]

Add support for Systemd

Add support for XWayland

Knowledge Prerequisites:[edit | edit source]

Mentors: Fotis Tsiamis[edit | edit source]

Using Weld for Cryptography in the Zeus e-voting application (https://zeus.grnet.gr).[edit | edit source]

Brief Explanation:[edit | edit source]

Zeus is an e-voting application, in use by thousands of people. It ensures anonymity and verifiability of the entire voting process by using strong cryptographic primitives. In particular, encrypted voter ballots are shuffled and anonymised in a verifiable way before decryption. This is computationally costly, so the Zeus team is constantly looking for ways to improve performance.

Example Improvements:[edit | edit source]

Cryptographic operations are very costly and efficient implementations are essential for real-world production use. For example, when using Python, the underlying cryptography is typically implemented in C/C++, with suitable bindings in Python, so that the actual computations happen at a much greater speed than that afforded by the Python interpreter. In this context, in last year’s GSoC we implemented a Zero-Knowledge Shuffle mechanism in C/C+ and then made it available in Python through Cython. Now we want to try a new optimisation, offered by the use of the Weld framework (http://weld.stanford.edu/). Weld offers speed improvements by minimising the number of calls, and thus memory copy costs, between languages, in our case, between Python and C. In this GSoC project we want to implement our shuffle operations using Weld, measure the performance benefits, and offer it as a possible optimisation in Zeus.

Related GitHub repositories:[edit | edit source]


Knowledge Prerequisites[edit | edit source]

  • Python
  • C, C++
  • Cryptography

Knowledge of Rust is a plus (Weld is implemented in Rust).

Mentors: Panos Louridas,Georgios Tsoukalas

Addition of Greek glyphs in Open Source Fonts[edit | edit source]

Brief Explanation[edit | edit source]

Many of the Open Source fonts (e.g., available at https://fonts.google.com), do not include glyphs for Greek letters and are therefore useless for using in a Greek environment.

The aim of this project is to imporve this situation and add the missing glyphs in the correct Unicode codepoints. The exact set of fonts to be completed will be determined in discussions between the student and the mentor(s).

This is not a typical programming project. If you have never designed fonts before, it is probably not for you.

Expected Results[edit | edit source]

Full support for Greek text in a number of Open Source fonts.

Knowledge Prerequisites[επεξεργασία | επεξεργασία κώδικα][edit | edit source]

Type design, font technologies. Please note that this is a special project, where coding, in the traditional sense, will not be enough.

Mentors:  Alexios ZavrasIrene Vlachou

The Transparency Program initiative - Diavgeia Redefined[edit | edit source]

Brief Explanation:[edit | edit source]

Diavgeia is a PHP application with a Mysql backend that is used in order to upload documents to an online public repository. This project participated in GSOC2017 as Diavgeia Redefined and was implemented a RDF Schema, which covers almost every possible decision type and the Notation3 (N3) syntax was adopted.

Related GitHub repositories:[edit | edit source]


Expected Results:[edit | edit source]

  1. Bitcoin-Website Validator: Create a tool which ensures that all proof of burn blockchain transactions of Diavgeia are consistent with the merkle trees uploaded on Diavgeia's website.
  2. Bitcoin-SPARQL Validator: Find an efficient way to prove that all decisions that have been commited to blockchain are also available from the SPARQL endpoint.
  3. Improve Visualizer: Visualizer does not visualize rdf properties for each different decision type.
  4. Study scalability of SPARQL endpoint: As it was stated, Diavgeia hosts millions of decisions. A benchmark of the scalability of the Apache Jena and Fuseki is crucial.

Knowledge Prerequisites:[edit | edit source]


· Mysql

Mentors: Alexios Zavras,Panagiotis Kranidiotis,

Scriptum[edit | edit source]

Brief Explanation:[edit | edit source]

SCRIPTUM is a Web based Open-Source application that will be used in order to eliminate bureaucracy and document loss, providing the Administration Office of the Greek Republic Vice President an extensible and integrated environment for document publishing, categorization and administration. The overall project involves two basic sub projects:

  1. e-Protocol: for handling incoming/outgoing mail messages and their attachments. Using this system, the e-Protocol users can benefit from the advanced OpenKm properties in order to manipulate the messages. This subsystem provides an easy way to complete forms relevant to the incoming/outgoing mail, form letters from templates and maintains a document repository equipped with document based security.
  2. Case Management: this sub system provides a well established work flow for treating documentation relevant to specific organization 's operations. Assignment Operations provides a standard way for managing and directing specific actions to be taken from the employees Administration Office of the Greek Republic Vice President of in order to complete organization 's operations.

These systems use as a document repository the document management platform OpenKM.

Related GitHub repositories:[edit | edit source]


Expected Results:[edit | edit source]

Knowledge Prerequisites:[edit | edit source]

· Java

- Maven

- JPA 2.1

- ZK 8.x

- Spring 4.x

Expected Results:[edit | edit source]

Mentors: Alexios Zavras,Panagiotis Kranidiotis

Netdata[edit | edit source]

Brief Explanation:[edit | edit source]

netdata is a system for distributed real-time performance and health monitoring. It provides unparalleled insights, in real-time, of everything happening on the system it runs (including applications such as web and database servers), using modern interactive web dashboards. netdata is ideal for monitoring physical servers, VMs, VPS, containers, IoT.

netdata is highly active project, with hundreds of new users joining and hundreds of new installations completed, every day. netdata is also featured as one of the top github projects for 2016 (https://octoverse.github.com/).

Key components of netdata:

1. netdata daemon, its core, written in C, an asynchronous I/O, time-series database and web server, optimized for performance.

2. web dashboards, written in Javascript, HTML, CSS

3. external plugins, written in python, node.js, bash, C

netdata is the definition of full-stack development. It includes low-level C programming following embedded development principles, web-apps development for visualizing performance metrics, devops and sysadmin automation tasks for configuring health monitoring (alarms), statistical analysis of metrics, high level development for data collection from databases and third party apps, etc.

Related GitHub repositories:[edit | edit source]


Expected Results[edit | edit source]

These are the main development directions

1. add more data collection plugins in any computer language, for monitoring the performance of popular third party applications.

2. add more data visualizations and dashboards.

3. add more health monitoring alarms, for monitoring popular applications and operating systems.

4. port netdata to more operating systems.

5. improve the distribution of netdata by setting up and maintaining binary packages for popular distributions.

6. improve the technical documentation of netdata (setup guides, how-tos for monitoring applications or functions, etc).

7. help spreading netdata, by improving the community and social media reach of netdata.

More ideas can be found at the netdata github repo

Knowledge Prerequisites:[edit | edit source]

Depending on the task in hand, different skills are required.

For example:

1. low level C programming (POSIX compliant, including pthreads)

2. python programming

3. node.js programming

4. web-app development (javascript, html, css)

5. bash scripting

6. linux system administration

Mentors: Costa Tsaousis, Diomidis Spinellis

Software components and IP management[edit | edit source]

More details in the separate page Clio.

Brief Explanation[edit | edit source]

A web-based system to manage data on software components and their relations.

Nowadays every piece of software is including and using many other software components, each one coming with their own license.

The goal of this project is to build a simple web system to be able to (manually) input and maintain this information!

This is a brand-new project; some analysis has been done but no code is available yet.

Expected Results[edit | edit source]

A complete web-based system to manage the above-mentioned data.

Knowledge Prerequisites[edit | edit source]

Web (any technology welcome)

Mentors: Alexios Zavras

Files DB[edit | edit source]

More details in the separate page FilesDB.

Brief Explanation[edit | edit source]

A system to keep meta-data for a large number of files.

The files that are to be processed can be on the filesystem, in archives, or parts of a (git) repository. The metadata are mainly information about the contents (size, type, hashes, ...), so that afterwards a number of questions can be asked about the actual files: how many files, how many files larger than X, how similar are two archives/repositories, when was a file introduced in a repository, etc.

This is a brand-new project; some analysis has been done but no code is available yet.

Expected Results[edit | edit source]

A software to collect the data from the input files and a collection of commands to query the data. These can all be command-line utilities; it would be worthwhile to also provide a Web interface, although it is not necessary.

Knowledge Prerequisites[edit | edit source]

C and/or Python; SQL; Git (and other systems); web

Mentors: Alexios Zavras

CScout AJAX-based Interface[edit | edit source]

Brief Explanation[edit | edit source]

CScout is a source code analyzer and refactoring browser for collections of C programs. It can process workspaces of multiple projects (a project is defined as a collection of C source files that are linked together) mapping the complexity introduced by the C preprocessor back into the original C source code files. CScout takes advantage of modern hardware (fast processors and large memory capacities) to analyze C source code beyond the level of detail and accuracy provided by current compilers and linkers. The analysis CScout performs takes into account the identifier scopes introduced by the C preprocessor and the C language proper scopes and namespaces. CScout has already been applied on projects of tens of thousands of lines to millions of lines, like the Linux, OpenSolaris, and FreeBSD kernels, and the Apache web server.

The aim of this project is to redesign the current web interface, which is based on HTML forms generated by C++ code, into a responsive AJAX-based one. Under this scheme the C++ code will provide JSON data through a RESTful interface, which the JavaScript front-end will use.

Expected Results[edit | edit source]

A modern responsive web interface offering the current capabilities of CScout. Ideally this would include in-line editing of identifiers.

Related GitHub repository:[edit | edit source]


Knowledge Prerequisites[edit | edit source]

  • C++
  • JavaScript
  • A modern development framework for interactive web content

Mentor: Diomidis Spinellis