Events

2024-10-28 Distinguished Lecture
Anonymity, Consent, and Other Noble Lies: An Empirical Study of the Data Economy

Invited talk by Joel Reardon (University of Calgary).

2024-11-25 Public Lecture
Krzysztof Pietrzak will give a talk on “Sustainable Blockchains“

Tha talk is a part of the Public Lecture Series ‘Sustainability in Computer Science’ under the auspices of Informatik Austria .

Abstract. The Bitcoin blockchain achieves consensus in an open setting, i.e., where everyone can participate. This was believed to be impossible, the key idea to make this possible was to use computing power rather than some kind of identities for voting through “proofs of work”. Unfortunately, this approach is not sustainable: the Bitcoin blockchain burns roughly as much electricity as a country like Austria. We will outline sustainable alternatives for achieving a Bitcoin-like blockchain, with a focus on using disk space instead of computation and how this is realized in the Chia Network blockchain.

2024-12-16 Research Seminar
End-to-end Verification of Side Channel Properties

2024-12-20 Distinguished Lecture
Towards a Secure and Privacy-Respecting Web

Invited talk by Christoph Kerschbaumer (Mozilla).

2025-01-27 Public Lecture
Georg Fuchsbauer will give a talk on “Space-efficient blockchains“

Tha talk is a part of the Public Lecture Series ‘Sustainability in Computer Science’ under the auspices of Informatik Austria .

Abstract. The move from “proof of work” to “proof of stake” has arguably overcome the problem of energy waste in blockchains. However, for public verifiability, most systems require all transactions to be stored forever, by every full node. In Bitcoin this data now amounts to over 600GB, while in Ethereum it is over 1TB. We will overview two approaches to space-efficient systems. “Mimblewimble” is a protocol where spent transactions can be erased from the blockchain while maintaining verifiability. “Mina” goes further and, using a heavy-weight cryptographic concept called zk-SNARK, reduces its blockchain size to 22kB, which will never grow.

2024-10-23 Outreach to society
Humanistic AI in Vienna. AI and Me: The Citizens’ Perspective

Prof. Laura Kovács is a participant in the panel discussion on the impacts and benefits of AI for citizens at Vienna Digital Days 2024. The discussion will focus on the application perspective, exploring the impacts and potential benefits of AI in citizens’ daily lives. Key areas of focus will include technology assessment and security. The discussion will revolve around three primary topics: the labor market and education, data security, and health, with a particular emphasis on its effects on perception and medicine.

2024-10-21 Public Lecture
Daniel Gruss give a talk on “Sustainable Security.“

The talk is a part of the Public Lecture Series ‘Sustainability in Computer Science’ under the auspices of Informatik Austria . This lecture series, a pioneering initiative in Austria, unites all Austrian CS departments and faculties to emphasize the vital role of sustainability in computer science. It showcases research solutions for real-world challenges and inspires progress towards a sustainable future.

Abstract. Global ICT electricity consumption is already beyond 11 percent of the worldwide electricity production and still increasing. By 2030 it may reach around 25 percent. Previous approaches to improve efficiency and performance have often sacrificed security, leading to disastrous security issues like Meltdown and Spectre. Patching just these two vulnerabilities increases power consumption on affected computers by a seemingly harmless 5 percent. By 2030, this may be more than 1 percent of the global electricity production by just a single out of thousands of patches. This development is not sustainable, and in this talk, we will discuss both the problem and potential revolutionary solutions.

2024-10-18 Networking
Breaking the Web’s Invisible Walls: Studying Emerging Client-Side Vulnerabilities at Scale

Invited talk by Soheil Khodayari (CISPA) and discussion on security of JavaScript-based web applications.

2024-10-16 Distinguished Lecture
Semantic Models for Trustworthy Systems: A Hybrid Intelligence Augmentation Program

Invited talk by Giancarlo Guizzardi (University of Twente).

2024-10-15 Lecture
Empowering Innovation: Unlocking the Potential of Privacy-Enhancing Technologies

Lecture by Prof. Dominique Schröder (TUW).

2024-10-07 Outreach to society
Happiness is endless in research

Prof. Laura Kovács shares insights from her diverse academic journey and emphasizes the importance of overcoming challenges for young researchers in her interview with Romanian Nőileg Magazine. She highlights the value of adaptability and openness to opportunities, stressing the significance of curiosity and finding joy in one’s work. Kovács encourages early-career scientists, particularly women, to embrace the challenges of research and pursue their interests with confidence. She also underscores the need for persistence in the competitive field of IT, noting the excitement of creating something new.

2024-09-30 Research Seminar
Anthemius: Efficient & Modular Block Assembly for Concurrent Execution

2024-09-27 Distinguished Lecture
Proofs as Polynomials

Invited talk by Ruzica Piskac (Yale University) on techniques for proving program safety.

2024-09-27 Female Mentoring Session

During an informal talk, Prof. Ruzica Piskac, Professor of Computer Science at Yale University and leader of the Rigorous Software Engineering (ROSE) group, shared her personal journey in computer science, emphasizing the challenges she faced and how she overcame them. The discussion also explored the current state of female representation in formal methods, computer science, and software engineering. Participants asked questions and shared their own experiences. Held in a warm and relaxed atmosphere, the conversation, moderated by Laura Kovacs, provided a wonderful opportunity not only to exchange insights but also to network.

2024-09-23 Summer School

Graz Security Week 2024 will be hosted by the IAIK – the Institute of Applied Information Processing and Communication at Graz University of Technology. The cybersecurity summer school is aimed at graduate students interested in security, privacy, and correctness. The main topics of the school this year include Cryptography & Cryptographic Implementations, Side Channels Privacy, and Safe AI. The program is available and registration is now open . Join us!

2024-08-16 Presentation

Stefan Gast contributed to three papers that will be presented at the 33rd Usenix Security Symposium , which is focused on the latest security and privacy developments in computer systems and networks. In the paper “Divide and Surrender: Exploiting Variable Division Instruction Timing in HQC Key Recovery Attacks” authors R. L. Schröder, S. Gast, and Q. Guo identify a critical side-channel vulnerability in the Hamming QuasiCyclic (HQC) algorithm. This vulnerability stems from the variable execution times of division instructions affected by the modulo operator. The paper introduces a technique called DIV-SMT, designed for processors with Simultaneous Multithreading (SMT), which precisely measures these timing variations to create a highly accurate Plaintext-Checking (PC) oracle. This innovative method enables rapid recovery of HQC secret keys, drastically reducing both the time and number of queries required compared to traditional methods. For successful exploitation, the attacker must be on the same physical core as the victim. The effectiveness of this approach was demonstrated on an AMD Zen2 machine.
The paper “SnailLoad: Exploiting Remote Network Latency Measurements without JavaScript” by the TU Graz research team introduces SnailLoad, a novel side-channel attack leveraging network latency to infer user activities on a computer without the need for direct access to network traffic. Unlike traditional side-channel attacks that typically require the attacker to directly monitor network traffic, such as through a person-in-the-middle (PITM) attack or by being in close proximity to WiFi signals, SnailLoad only necessitates that the victim loads assets from an attacker-controlled server. This method utilizes network latency fluctuations as a side channel to detect activities like video watching or website browsing. “The main threat here is that any TCP server can stealthily obtain latency traces from any clients connecting to it,” explained Stefan Gast to SecurityWeek . The research team has further expanded public understanding of this threat by launching a dedicated website that offers a detailed description and a live demonstration of SnailLoad, providing real-world insights into how the attack functions.
The capability of hackers to spy on individuals through any device connected to the internet has captured considerable media attention. The Independent warns that SnailLoad effectively bypasses conventional security measures such as firewalls and VPNs. “When the victim accesses a website, watches an online video, or speaks to someone via video, the latency of the internet connection fluctuates in a specific pattern that depends on the particular content being used,” Stefan Gast further detailed. Testing showed that the researchers could spy on users watching videos with a 98% success rate, with the method proving particularly effective when the internet connection was slow and the videos were of substantial size.
More media coverage about SnailLoad is available through the following links: DER STANDARD , heise online .
At the symposium, the paper titled “SLUBStick: Arbitrary Memory Writes through Practical Software Cross-Cache Attacks within the Linux Kernel” by L. Maar, S. Gast, M. Unterguggenberger, M. Oberhuber, and S. Mangard will also be presented.

2024-08-14 Distinguished Lecture
Security in a World of Software Supply-Chain Vulnerabilities

Invited talk by Nikos Vasilakis (Brown University) and discussion on solutions to secure software ecosystems against attacks that exploit third-party components.

2024-07-06 Workshop
Asynchronous Hyperproperties: from Theory to Practice

Hyperproperties are a general framework to reason about properties requiring comparing multiple system executions, like security properties or robustness requirements. In this workshop, we want to bring together practitioners from different backgrounds with theoreticians developing frameworks for specifying hyperproperties.
The workshop format will focus on discussions and promoting the interchange of ideas between different communities. Find more information at the Workshop site , CySec News .

2024-07-05 Distinguished Lecture
Access Control in Mobile Software Stacks: Can we do fundamentally better?

Invited talk by Sven Bugiel (CISPA Helmholtz Center for Information Security) and discussion on fundamental improvements can be made at the system design level to enhance the security of mobile operating systems.

2024-06-24 Distinguished Lecture
On Challenges in Defending Against Code Stylometry

Invited talk by Konrad Rieck (TU Berlin, Guest Professor at TU Wien) and discussion on сhallenges in defending against code stylometry.
Location: TU Wien, FAV Hörsaal 1 Helmut Veith (1040 Vienna, Favoritenstr. 9-11, Erdgeschoß, Room HEEG02)
Time: 16:00 – 17:00

2024-06-19 Outreach to society
Chat control is a security risk for all of Europe

Matteo Maffei (TU Wien), Daniel Gruss (TU Graz), Krzysztof Pietrzak (ISTA), and René Mayrhofer (Johannes Kepler University Linz), in a dialogue with DER STANDARD, have expressed significant concerns about the proposed client-side scanning measures in the EU.

As the European Parliament reviews the child sexual abuse (CSA) prevention and combat regulation, which advocates for the preemptive scanning of messages in platforms like WhatsApp, a broad spectrum of stakeholders, including researchers, data protection organizations, and child protection centers, have raised alarm. Critics argue that this method risks compromising secure communication, exposing citizens to extensive surveillance, and potentially allowing misuse by state actors or criminals. Additionally, there is apprehension about the arbitrary classification of content as illegal, which may encroach upon freedoms such as political speech. If enforced, this policy could fundamentally alter the operation of messaging services across Europe. Encrypted services like Signal might exit the European market, while others, such as WhatsApp and Threema, could be compelled to lower their encryption standards to align with new EU regulations.

Daniel Gruss pointed out the inherent security weaknesses in client-side scanning software, noting that such systems, once deployed, are bound to harbor exploitable flaws due to their complexity. Matteo Maffei emphasized the profound impact on fundamental rights, likening the scanning process to an invasive system where every letter is read, verified, and resealed before delivery. He argued that using client-side scanning to break encryption carries huge risks that could threaten the security of all citizens.

Highlighting the importance of maintaining robust communication security, the experts advocate for more research into bolstering system security rather than diminishing it, underscoring that secure communication is a critical and well-understood pillar of IT security that must be preserved.
Find the full text of the article in German on DER STANDARD .

2024-06-11 Networking
Automatic On-Device Mitigation for Crypto API Misuse

Invited talk by Florian Draschbacher (TU Graz) and discussion on automatic on-device mitigation for crypto API misuse in Android applications.

2024-06-11 Achievement
Best Paper Award at HOST 2024

The paper titled “Security Aspects of Masking on FPGAs,” authored by Barbara Gigerl, Kevin Pretterhofer, and Stefan Mangard, was honored with the Best Paper Award at the IEEE International Symposium on Hardware Oriented Security and Trust (HOST) 2024.

2024-06-03 Networking
Formal Verification of Probe Isolating Non-Interference in Secure Circuits

TUW hosted an enriching full-day session led by SPyCoDe PIs, Laura Kovács and Roderick Bloem, focusing on the advanced topic of formal verification of probe isolating non-interference (PINI) in secure circuits. The meeting featured distinguished expert Dr. Nikolaj Bjorner from Microsoft Research, renowned for his work with the advanced SMT (Satisfiability Modulo Theories) constraint solver Z3, who contributed unique insights and expertise. Other participants included Clemens Eisenhofer and Robin Coutelier. Throughout the day, the group explored how SMT reasoning could be expanded to enhance the security features of electronic circuits, effectively increasing their resistance to various forms of interference and tampering, both with and without the use of probabilities. This event not only showcased the latest advancements in secure circuit design but also promoted collaboration among some of the brightest minds in the field. It was a day filled with stimulating exchanges, thought-provoking ideas, and meaningful knowledge sharing, setting the stage for further research.'

2024-05-13 Research Seminar
Trapdoor Memory-Hard Functions

2024-04-29 Research Seminar
VIRAS: A Conflict-Driven Descision Procedure for mixed Integer-Real Arithmetic

2024-04-17 Distinguished Lecture

Invited talk by Byron Cook (UCL, TU Darmstadt, Amazon) and discussion on automated reasoning and internal proof projects of Amazon. Location: TU Wien, Campus Freihaus, Informatikhörsaal (1040 Vienna, Treitlstraße 3)
Time: 11:15 – 13:00

2024-04-15 Research Seminar
Efficient and Secure Compression Functions for Arithmetization-Oriented Hashing

2024-04-02 Retreat
Retreat at the Institute of Science and Technology Austria

2024-04-01 Outreach to society
Why We Will Never Get Rid of Side Channels

In the April episode of the “What That Means” InTechnology Podcast, Daniel Gruss discusses with hosts Camille Morhardt and Anders Fogh (Intel) the balance between side channels and resource sharing, common challenges and how to manage them, the impact of AI on side channels, and securing critical infrastructure stored in space. Find more on YouTube .”

2024-03-26 Distinguished Lecture

Invited talk by Reiner Hähnle (TU Darmstadt) and discussion on a program logic of context-aware trace contracts.

2024-03-18 Research Seminar
Rational protocol design

2024-03-04 Research Seminar
Comparing Apples to Androids: Discovery, Retrieval, and Matching of iOS and Android Apps for Cross-Platform Analyses

2024-02-26 Research Seminar
Secure Blockchains in Network Transition Periods

2024-02-19 Research Seminar
Secure and Verifiable Implementations of off-chains Protocols

2024-01-29 Research Seminar
Cryptanalysis Using Constraint Programming

2024-01-22 Research Seminar
Software Fault Attacks and Energy Efficiency

2024-01-15 Research Seminar
Secure implementation of the masking countermeasure on different platforms

2023-12-13 Distinguished Lecture

Invited talk by Frank Leymann (Universität Stuttgart) and discussion on Post-Quantum Security.

2023-12-04 Research Seminar
Efficient Multi-tuple Leakage Detection Testing in Side-channel

2023-12-01 Networking

Invited talk by Michele Orrù (Sorbonne Université) and discussion on elastic SNARKs.

2023-11-28 Presentation
SPyCoDe researchers participate in ACM CCS 2023.

Five representatives from SpyCoDe actively contributed to the ACM Conference on Computer and Communications Security (CCS) held in Copenhagen, Denmark, from November 26 to 30, 2023. This conference serves as the annual flagship event of the Special Interest Group on Security, Audit, and Control (SIGSAC) within the Association for Computing Machinery (ACM), attracting information security researchers, practitioners, developers, and users worldwide to explore cutting-edge ideas and results.

During November 27-29, the conference featured the presentation of the following research contributions:

• CheckMate: Automated Game-Theoretic Security Reasoning by Lea Salome Brugger, Laura Kovács, Anja Petković Komel, Sophie Rain, and Michael Rawson, all from TUW, in the track “Formal Methods and Programming Languages”,

• Let’s Go Eevee! A Friendly and Suitable Family of AEAD Modes for IoT-to-Cloud Secure Computation by Amit Singh Bhati (KU Leuven, Belgium), Erik Pohle (KU Leuven, Belgium), Aysajan Abidin (KU Leuven, Belgium, Elena Andreeva (TUW), Bart Preneel (KU Leuven, Belgium) in the track: “Applied Cryptography”,

• Cryptographically Enforced Memory Safety by Martin Unterguggenberger, David Schrammel, Lukas Lamster, Pascal Nasahl and Stefan Mangard, all from Graz University of Technology, in the track “Software Security”,

• IoTFlow: Inferring IoT Device Behavior at Scale through Static Mobile Companion App Analysis by David Schmidt (TUW), Carlotta Tagliaro (TUW), Kevin Borgolte (Ruhr University Bochum, Germany) and Martina Lindorfer (TUW) in the track “Network Security”.

These insightful presentations showcase SpyCoDe’s commitment to advancing knowledge and innovation in the realm of computer and communications security.

2023-11-26 Public Lecture
Martina Lindorfer joined as a speaker for the iMentor Workshop.

Individualized Cybersecurity Research Mentoring (iMentor ) Workshop co-located with the ACM Conference on Computer and Communications Security (ACM CCS) virtually. It is dedicated to attracting, mentoring, and providing career guidance to early-stage graduate students from underrepresented communities who aspire to pursue a career in computer security.

Martina gave a talk titled “IoTFlow the Making-Of: Inferring IoT Device Behavior at Scale through Static Mobile Companion App Analysis.” Using the preparation of her article presented at ACM CCS 2023 as an example, she shared with the iMentor cohort the behind-the-scenes journey of the IoTFlow paper — from its initial conception to the different iterations and revisions it underwent.

Abstract. The number of “smart” devices, that is, devices making up the Internet of Things (IoT), is steadily growing. They suffer from vulnerabilities just as other software and hardware. Automated analysis techniques can detect and address weaknesses before attackers can misuse them. Applying existing techniques or developing new approaches that are sufficiently general is challenging though. Contrary to other platforms, the IoT ecosystem features various software and hardware architectures. We introduce IoTFlow, a new static analysis approach for IoT devices that leverages their mobile companion apps to address the diversity and scalability challenges. IoTFlow combines Value Set Analysis (VSA) with more general data-flow analysis to automatically reconstruct and derive how companion apps communicate with IoT devices and remote cloud-based backends, what data they receive or send, and with whom they share it. We analyzed 9,889 manually verified companion apps with IoT-Flow to understand and characterize the current state of security and privacy in the IoT ecosystem. We discovered various IoT security and privacy issues, such as abandoned domains, hard-coded credentials, expired certificates, and sensitive personal information being shared.

2023-11-24 Achievement
Maria Eichlseder received the Hedy Lamarr Prize from the City of Vienna.

Prof. Eichlseder was honored for her contributions to the development of new methods for cryptanalysis. She is one of the designers who developed the Ascon algorithm, which earlier this year was selected by the US National Institute of Standards and Technology (NIST) as the standard for lightweight cryptography. It also won the 2019 CAESAR competition for authenticated encryption in the lightweight applications category.

Lightweight cryptography deals with cryptographic methods that are particularly suitable for use in resource-constrained environments, such as RFID tags or sensors, due to their low resource requirements. This applies in particular to the Internet of Things with its numerous small sensors and actuators, as only little energy and power are available here. Ascon is also suitable for miniature technologies such as medical implants or keyless car openers.

Hedy Lamarr Prize recognizes female researchers in Austria for their outstanding achievements in the field of information technology. The prize is named after the Vienna-born Hollywood actress and scientist Hedy Lamarr. The award winners serve as role models for the next generation and motivate young women to pursue a career in the IT industry.

2023-11-24 Networking

Invited talk by Christof Ferreira Torres (ETH Zurich) and discussion on the privacy aspects of Web3 wallets

2023-11-15 Achievement
Maria Eichlseder has been awarded a prize for excellence in teaching

Maria Eichlseder, an assistant professor at IAIK, was one of the four recipients honored with a prize for excellence in teaching 2022/23 at Graz University of Technology. She received the accolade for her outstanding lecture in Cryptography.

2023-11-13 Public Lecture
Krzysztof Pietrzak gave a talk on “Sustainable Blockchains“

Tha talk is a part of the Public Lecture Series ‘Sustainability in Computer Science’ under the auspices of Informatik Austria .

Abstract. The Bitcoin blockchain achieves consensus in an open setting, i.e., where everyone can participate. This was believed to be impossible, the key idea to make this possible was to use computing power rather than some kind of identities for voting through “proofs of work”. Unfortunately, this approach is not sustainable: the Bitcoin blockchain burns roughly as much electricity as a country like Austria. We will outline sustainable alternatives for achieving a Bitcoin-like blockchain, with a focus on using disk-space instead of computation and how this is realized in the Chia Network blockchain."

2023-11-06 Research Seminar
Software-based Microarchitectural CPU Attacks

2023-11-02 Presentation
Jonas Juffinger presented “CSI:Rowhammer“ at the Hardwear.io Security Trainings and Conference 2023 .

The research addresses Rowhammer, a severe security problem in DRAM that allows an unprivileged adversary to gain kernel privileges by inducing electrical disturbance errors. CSI:Rowhammer is a hardware-software co-designed Rowhammer mitigation with principled cryptographic security and integrity guarantees, intentionally avoiding a focus on specific Rowhammer properties. Due to its generic design, the system provides protection against all Rowhammer attacks.

The presentation delved into the comprehensive details of designing a system like CSI:Rowhammer, covering aspects such as implementing low-latency hardware correction, maximizing software correction potential, securing correction routines in software against bit flips, managing possible race conditions, ensuring compatibility with virtual machines, evaluating the entire system, and more.

Slides Video

2023-10-25 Outreach to society
Engaging school children and young people in STEM activities.

In two articles featured in the release of doIT 2/2023 in “Der Standard,” SpyCoDe members explore the significance of involving children in STEM activities and investigate the opportunities available in IT for the younger generation.

Sophie Rain introduces the “Abenteuer Informatik für Volksschule” initiative, where elementary school children visit the university to playfully delve into the world of algorithms. While programming education is now accessible to 8-year-old children, adapting content and delivery methods to align with their developmental needs and capabilities is essential. The TU Wien team is dedicated to creating an educational playground for primary and secondary school classes, fostering their interest in STEM. Sophie underscores the initiative’s crucial role in empowering girls to overcome stereotypes suggesting that technology is not for them.

Professor Maria Eichlseder shares her journey in establishing a successful career in IT. A small holiday project involving an encryption algorithm revealed to her the truly exciting nature of cryptography. Despite having limited prior knowledge in informatics from school, her fascination with cryptoanalysis led her to co-author Ascon, an authenticated encryption and hashing algorithm that has become an international standard. Today, Maria characterizes IT as an inspiring environment where individuals can initiate diverse projects, collaborate in dynamic teams, and contribute to their unique interests. The job landscape is expansive, featuring numerous companies and startups in Austria with promising earning potential. Addressing young people, she encourages them by stating, “Getting involved is fun and helps you develop personally!”

2023-10-12 Networking

Invited talk by Chrysoula Stathakopoulou (Chainlink Labs) and discussion on BBCA

2023-10-12 Achievement
Giulia Scaffino listed amongst Top 30 @ TU Wien Under 30.

In 2023, Giulia Scaffino (27) is listed amongst the “TUW Under 30”, a list of selected TU Wien students and employees. Similar to the” Forbes Under 30”, this list features young and extraordinary researchers and entrepreneurs from the TUW, being able to present exceptional achievements in their area of research. Giulia graduated in nuclear physics and is doing her PhD at the Security& Privacy Research Group of Matteo Maffei. She specializes on Blockchain-protocols and is currently working on a blockchain bridge called “Glimpse”, enabling cross-currency transaction between Krypto-currencies. Giulia presented her results at the renowned IT conference USENIX Security Symposium. For more details see the article featured in the current print issue of the TUW Magazine #02-2023 “Schwerpunkt: Under 30” (pages 26-28) and also her bio online .

2023-10-12 Achievement
Sophie Rain listed amongst Top 30 @ TU Wien Under 30.

Sophie Rain (28) is amongst the “TUW Under 30” in 2023, a list of selected TU Wien students and employees. Similar to the “Forbes Under 30”, this list features young and extraordinary researchers and entrepreneurs from the TUW, being able to present exceptional achievements in their area of research. Sophie is a PhD student in Laura Kovacs’ Research Unit of Formal Methods in Systems Engineering. Her work focuses on the security verification of Blockchain applications by applying mathematical concepts such as game theory, logic and most importantly automated reasoning. Her work was presented at major security conferences such as CAV 2021 and CSF 2023. Furthermore, she is leading the TU Wien initiative “Abenteuer Informatik für Volksschule”, organizing workshops for pupils. For more details see the article featured in the current print issue of the TUW Magazine #02-2023 “Schwerpunkt: Under 30” and also her bio online .

2023-10-09 Research Seminar
Information-Flow Interfaces

2023-10-09 Public Lecture
Daniel Gruss gave a talk on “Sustainable Security.“

The talk is a part of the Public Lecture Series ‘Sustainability in Computer Science’ under the auspices of Informatik Austria . This lecture series, a pioneering initiative in Austria, unites all Austrian CS departments and faculties to emphasize the vital role of sustainability in computer science. It showcases research solutions for real-world challenges and inspires progress towards a sustainable future.

Abstract. Global ICT electricity consumption is already beyond 11 percent of the worldwide electricity production and still increasing. By 2030 it may reach around 25 percent. Previous approaches to improve efficiency and performance have often sacrificed security, leading to disastrous security issues like Meltdown and Spectre. Patching just these two vulnerabilities increases power consumption on affected computers by a seemingly harmless 5 percent. By 2030, this may be more than 1 percent of the global electricity production by just a single out of thousands of patches. This development is not sustainable, and in this talk, we will discuss both the problem and potential revolutionary solutions."

Slides

2023-09-25 Research Seminar
Computationally Sound Cryptographic Protocol Automated Verification

2023-09-14 Outreach to society

The TU Wien cryptography expert Prof. Elena Andreeva was featured in the Puls4 documentary Angriff aus dem Internet (Attack from the Internet).

Prof. Andreeva opens the doors to her research space and group at TU Wien, explaining the role of cryptography in today’s digital world. She also discusses how everyday devices like mobile phones can be vulnerable to cyber attacks.

The documentary sheds light on the importance of preventing cyber attacks, given their ubiquitous growth worldwide, and more specifically, in Austria. As the attackers range from criminals to state-run organizations, the targets vary from public administration and states to critical infrastructure and, not least, private individuals. The documentary presents several cyber attacks and discusses directions for prevention.

The interview with Elena Andreeva is available for reading in TU Wien Informatics News.

2023-09-11 Research Seminar
A Forkcipher-based Pseudo-Random Number Generator

2023-09-04 Summer School

Graz Security Week 2023 , organized by the Institute of Applied Information Processing and Communication (IAIK) at Graz University of Technology, is set to take place. This event is specifically tailored for graduate students who are enthusiastic about delving into the intricacies of security and correctness in computing devices. The school will cover a diverse range of topics, including Runtime Security, Side-Channels, Privacy, Secure Cryptographic Implementations, and Security Verification. It offers a unique opportunity for participants to deepen their knowledge and engage in discussions surrounding these critical aspects of computer security.

2023-06-26 Presentation
Giulia Scaffino presented “Glimpse“ at the the prestigious “USENIX Security Symposium“

Glimpse stands out as an innovative protocol, facilitating secure cross-chain token transfers in a fully decentralized manner, eliminating the need for large commercial crypto-depots. This accomplishment is the result of collaborative efforts by Giulia Scaffino, Lukas Aumayr, Zeta Avarikioti, and Matteo Maffei.

Notably, the Glimpse protocol is compatible with blockchains that have limited scripting languages. The authors provide a specific implementation of Glimpse for the Liquid Network, a Bitcoin pegged sidechain. The protocol’s security is proven within the Universal Composability (UC) framework, instilling a high level of confidence in its security guarantees. The researchers conducted an economic analysis of the Glimpse protocol, revealing that verifying a simple transaction on Bitcoin-like chains using Glimpse incurs a maximum of 700 bytes of on-chain overhead, resulting in a one-time fee of $3. This fee is only twice as much as a standard Bitcoin transaction, highlighting the cost efficiency of Glimpse. Overall, the presented advancements unlock exciting possibilities for the world of cryptocurrencies.

Slides Video

2023-06-19 Research Seminar
Verification of Game-Theoretic Security Properties for Blockchain Protocols

2023-06-05 Research Seminar
SMT or a Shelter for Theory and Logics

2023-05-22 Research Seminar
PYTHIA: Supercharging Parallel Smart Contract Execution with the help of Optimistic Predictions

2023-04-18 Kick-off event

On April 18, the Technical University of Vienna (TUW) hosted the highly anticipated kick-off event of SPyCoDe, a groundbreaking research program focused on the Semantic and Cryptographic Foundations of Security and Privacy through Composite Design. Generously funded by the Austrian Science Fund (FWF), this initiative aims to delve into the complexities of security and privacy in the digital landscape. The event successfully brought together a diverse group of project participants, fostering an atmosphere of collaboration and innovation.

The presentation of the SPyCoDe program covered its purpose, methodology, research plans, 14 projects, and expected results. It captivated not only the students but also garnered approval from esteemed members of the Advisory Board, including Prof. Véronique Cortier (French National Scientific Research Center (CNRS)), Prof. Bart Preneel (Research group COSIC, KU Leuven), and Prof. Christoph Paar (Ruhr-Universität Bochum). The ensuing discussion proved fruitful, providing invaluable insights and advice crucial to the program’s success in achieving its goals.

Throughout the day, participants seized the opportunity to connect with one another, engaging in informal conversations, knowledge exchange, and thought-provoking discussions. These interactions delved into the complex topics underlying the research activities of the program. A series of cross-cutting sessions facilitated collaborative efforts between the PIs and students, fostering interdisciplinary cooperation and kick-starting joint research. These sessions focused on studying various aspects of security analysis, compositionality, reasoning, and other pertinent subjects, fostering intensive and illuminating dialogue.

The Kickoff event marked a promising beginning for the SPyCoDe research program, which aims to shed light on the intricate world of security and privacy in the digital realm. With a diverse array of projects and a dedicated team of researchers, the program is poised to make significant strides in advancing our understanding and addressing the challenges of this ever-evolving field.

2022-09-06 Start of the 1st Call for 14 PhD positions