Transparency Systems, such as Certificate Transparency or Key Transparency, are designed to provide accountability and verifiability of data. However, they […]
Category: IT Security
Security Analysis of Native Cryptography in Android Apps
Although Android apps are primarily developed in Java and compatible languages for portability reasons, there is the possibility of implementing […]
Authenticity & Verifiability in Federated Learning: Overview & Methods
With the help of machine learning (ML) – or often referred to as AI – and a large amount of […]
Federated Credential Management (FedCM API)
Browsers are introducing measures to improve user privacy. For example,in the future, users will be prevented from being tracked via […]
Design Considerations of Ex-post TETs for Credential Transparency
Ex-post Transparency-Enhancing-Technologies aim to help data subjects exercise their right to transparency by providing them with visibility on the sensitive […]
Analysis of Fingerprinting Libraries on Android
In order to recognise a user across different applications, a fingerprint of the used device can be created. Specialised software […]
MPC-based Secure Aggregation in Federated Learning: Overview, Protocols, & Google’s Gboard
As digitalization progresses, it is becoming increasingly attractive to learn from as much data as possible in order to, e.g., […]
Privacy-preserving Identifiers
In federated authentication protocols (e.g., OpenID Connect), users are often assigned unique identifiers to be identified by service providers (SPs). […]
Analysis of the Permission System of Android
The Android permissions system is a key security feature that is used to control the access of applications to certain […]
Security Analysis of new Sideloading Possibilities on iOS 17.4 / iPadOS 18
The Digital Markets Act (DMA) of the European Union forced Apple to relax its position as the gatekeeper of the […]