1610, 2025

DeepSec 2025 Talk: Fake News, Fake Pics: Securing Image Provenance in a Post-Quantum World – Maksim Iavich

Sanna/ October 16, 2025/ Conference/ 0 comments

With quantum computers on the horizon, today’s cryptographic defenses are running out of time. Fake news, deepfakes, and manipulated media already threaten digital trust, and quantum attacks will soon break the few remaining verification systems. Post-Quantum VerITAS is designed to secure digital content in both classical and post-quantum worlds, ensuring that image provenance remains verifiable even against adversaries with quantum capabilities. Our system combines lattice-based hash functions, post-quantum zk-SNARKs, and quantum-resistant digital signatures such as CRYSTALS-Dilithium. Unlike C2PA, which fails when images are modified or quantum attacks render its cryptography obsolete, Post-Quantum VerITAS provides a trustless, scalable, and quantum-secure solution. It enables real-time verification of images even after edits like cropping, resizing, or blurring, without requiring reliance on centralized authorities. In this talk, we will break down the cryptographic foundations of Post-Quantum VerITAS, demonstrate

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1809, 2023

DeepSec 2023 Talk: Skynet wants your Passwords! The Role of AI in Automating Social Engineering – Alexander Hurbean & Wolfgang Ettlinger

Sanna/ September 18, 2023/ Conference

We techies love solving problems with cool technology, to where we attempt to implement the economy in code. Although important in general, we know that, for example, blockchain, cryptography, and Secure Software Development Life Cycle (SSDLC) are irrelevant when the user enters their credentials on a phishing site. From an attacker’s point of view, though, we see that modern technologies such as artificial intelligence are immensely beneficial to attack one of the weakest links in security – humans. We will explore how modern technologies, for instance DeepFakes, Deep Neural Networks (DNNs), and Transformers, can be misused by bad actors. We will explore some interesting ideas for attacks, discuss their practical feasibility and show implementations of some of these attacks. We will also look at approaches to detect and defend against AI-powered attacks. We asked

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0606, 2023

DeepSec 2023 Talk: Deepfake vs AI: How To Detect Deepfakes With Artificial Intelligence – Dr. Nicolas Müller

Sanna/ June 6, 2023/ Conference

Artificial intelligence is developing at a breathtaking pace, already surpassing humans in some areas. But with opportunity comes potential for abuse: generative models are getting better at creating deceptively real deepfakes – audio or video recordings of people that are not real, but entirely digitally created. While the technology can be used legitimately for film and television, it has great potential for abuse. This lecture illustrates this problem using audio deepfakes, i.e. fake voice recordings. The technical background of synthesis will be highlighted, and current research on countermeasures will be presented: Can we use AI to expose deepfakes? Can we learn to recognise deepfakes, and if so, how? We asked Dr. Nicolas Müller a few questions about his talk. Please tell us the top 5 facts about your talk. We will listen to Angela

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