SPXP Test Profile Generator

This tool generates random SPXP profiles for different versions of the SPXP protocol. It takes statistical properties of existing social networks into account to generate a realistic representation of real profiles.
This tool is intended to generate a test set of profiles which can be used as testbed for the development of SPXP client and server implementations.
During the specification of new protocol versions, it is also used to test the effect of specific protocol choices and the feasibility of design decisions.

Preparation

This tool uses random person data generated by randomuser.me, random images from unsplash for posts, random quotes from quotesondesign.com and random tweets from the Cheng-Caverlee-Lee September 2009 - January 2010 Twitter Scrape dataset used in the paper "You Are Where You Tweet: A Content-Based Approach to Geo-locating Twitter Users in CIKM 2010".
The original datasets used to generate the official testbed profiles on spxp.org is available in ./dataset.
Profile images are not part of this dataset and must be downloaded with the tool DownloadProfileImages separately.
Other tools to scrape Photo URLs from unsplash and quotes are also located in the package org.spxp.tools.testbedgen.prepare.

Generating profiles of SPXP version 0.1

To generate the original testbed that can be found on http://testbed.spxp.org/0.1/, perform these steps:

1. Run the tool org.spxp.tools.testbedgen.prepare.DownloadProfileImages. It will download a set of sample profile images and store them in the local folder ./profile_images
2. Run the tool org.spxp.tools.testbedgen.v01.GeneratorV01. It will create the files in the local folder ./v0.1.
3. Copy or move the images from ./profile_images to ./v0.1/images
4. Copy the pre-created city profiles from ./dataset/places-v01 to ./v0.1

The behavior as well as the base URL can be adopted by changing some constants at the top of this file.

Generating profiles of SPXP version 0.2

To generate the original testbed that can be found on http://testbed.spxp.org/0.2/, perform these steps:

1. Run the tool org.spxp.tools.testbedgen.prepare.DownloadProfileImages. It will download a set of sample profile images and store them in the local folder ./profile_images
2. Run the tool org.spxp.tools.testbedgen.v02.GeneratorV02. It will create the files in the local folder ./v0.2.
3. Copy or move the images from ./profile_images to ./v0.2/images
4. Copy the pre-created city profiles from ./dataset/places-v02 to ./v0.2

The behavior as well as the base URL can be adopted by changing some constants at the top of this file.
Generating EC keys for the curve P-256 and calculating the ECDH shared secret between two such keys is quite computational heavy. The generator tool writes generated keys and computed shared secrets to files in ./cache/V0.2 and tries to reuse such material from there on the next run. This improves speed and guarantees reproducible profile keys.
The symmetric round keys however are NOT cached. After re-creating profiles with this tool, clients still need to drop and re-read all group key material. Connections between profiles however remain.

Generating profiles of SPXP version 0.3

To generate the original testbed that can be found on http://testbed.spxp.org/0.3/, perform these steps:

1. Run the tool org.spxp.tools.testbedgen.prepare.DownloadProfileImages. It will download a set of sample profile images and store them in the local folder ./profile_images
2. Run the tool org.spxp.tools.testbedgen.v03.GeneratorV03. It will create the files in the local folder ./v0.3.
3. Copy or move the images from ./profile_images to ./v0.3/images
4. Copy the pre-created city profiles from ./dataset/places-v03 to ./v0.3

The behavior as well as the base URL can be adopted by changing some constants at the top of this file.
This tool will generate new cryptographically secure keys on each run. After re-creating profiles with this tool, clients need to drop and re-read all profiles since their profile keys and connection keys won't match.