5 papers
Cryptanalysis of a PIR Scheme based on Linear Codes over Rings
Luana Kurmann, Svenja Lage, Violetta Weger
In this paper we present an attack on a recently proposed code-based Private Information Retrieval (PIR) scheme. Indeed, the server can retrieve the index of the desired file with…
On the Security of a Code-Based PIR Scheme
Svenja Lage, Hannes Bartz
Private Information Retrieval (PIR) schemes allow clients to retrieve files from a database without disclosing the requested file's identity to the server. In the pursuit of post-q…
Source Anonymity for Private Random Walk Decentralized Learning
Maximilian Egger, Svenja Lage, Rawad Bitar +1
This paper considers random walk-based decentralized learning, where at each iteration of the learning process, one user updates the model and sends it to a randomly chosen neighbo…
Cryptanalysis of a Lattice-Based PIR Scheme for Arbitrary Database Sizes
Svenja Lage
Private Information Retrieval (PIR) schemes enable users to securely retrieve files from a server without disclosing the content of their queries, thereby preserving their privacy.…
Collision Risk Analysis for LEO Satellites with Confidential Orbital Data
Svenja Lage, Felicitas Hörmann, Felix Hanke +1
The growing number of satellites in low Earth orbit (LEO) has increased concerns about the risk of satellite collisions, which can ultimately result in the irretrievable loss of sa…