#SIGNAL APP ANDROID SOFTWARE#
I’m interested in the process of software engineering and the proper software engineering techniques.
Martijn van den Hoek After finishing my Bachelor of Computer Science in Delft, I continued with the master in the same discipline. In the following paragraphs, the members of the team will give a short introduction of themselves. We have made this blog as part of the CS4315 Software Architecture course, which we have followed as part of our master of Computer Science program. We are a team of four students of the Delft University of Technology in the Netherlands. It will furthermore be investigated how these objectives are realized through both the software architecture and development process. The goal of this journey is to uncover the objectives for the Signal application. The fourth essay is a deeper analysis of the protocols that enable Signal’s unique features and of how they are reflected in the architecture.
#SIGNAL APP ANDROID CODE#
The third essay takes a deeper dive into the code that composes Signal. The second essay describes how this vision resonates with the architecture of the app. The first essay details the vision underlying Signal, placing it into the context of its users and analyzing its stakeholders. The four essays that compose this blog will highlight different aspects of Signal’s architecture. This blog will take you on a journey under the hood of Signal, through the eyes of a software architect.
#SIGNAL APP ANDROID ANDROID#
This blog will focus exclusively on Signal’s Android implementation. Signal can be used on three different platforms: Android, iPhone, and Desktop. This ensures a higher degree of privacy for the end user. Most of these apps encrypt the message content, but Signal additionally encrypts the metadata: Who sent the message at what time. This goes a step beyond the end-to-end encryption used by many other popular messaging apps. Striving to be a secure privacy-central alternative to existing messaging apps, Signal encrypts all messages that its users send and receive through the app. In contrast to its competitors, Signal has its source code available to the public, making it easier to verify what it is doing. Signal is a secure privacy-central alternative to existing messaging apps. However, most of the popular messaging apps are closed source, meaning that an outside observer can not easily see what the application is doing on the background. We now live in an era where more and more of this communication takes place over the internet through messaging apps. With regulators doing their best to protect general privacy in terms of the information that organizations store about their clients, we should not forget the means through which we express our deepest desires and greatest wishes: interpersonal communication. The interest in those topics is not limited to the technological communities, as more and more legislators are introducing laws and regulations to protect the privacy and security of their citizens, such as the European General Data Protection Regulation (GDPR) and California Consumer Privacy Act (CCPA). In recent years, privacy and security have become topics of focus within the software engineering community as well as in the global discourse on technology.
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