Tag Archives: Sven Laur

Cybersecurity related bachelor’s and master’s theses in University of Tartu 2022 (June)

The defences are taking place on the first and second week of June.

May 31 (online):

Time: 09:15
Student: Xuejun Wu (Computer Science MSc)
Title: Security in Remote Update of Medical Devices
Supervisor: Tuomas Aura, Arnis Paršovs
Reviewer: Denizalp Kapisiz

May 31 (online):

Time: 13:00
Student: Kert Tali (Computer Science BSc)
Title: Parallel and Cloud-Native Secure MultiParty Computation
Supervisor: Riivo Talviste, Pelle Jakovits
Reviewer: Eero Vainikko

Time: 13:45
Student: Karl Hannes Veskus (Computer Science MSc)
Title: Privacy-preserving data synthesis using trusted execution environments
Supervisor: Liina Kamm, Sven Laur
Reviewer: Arnis Parsovs

June 3 (online):

Time: 11:45
Student: Geitrud Pank (Computer Science BSc)
Title: Lab Package: Mobile application security testing
Supervisor: Dietmar Pfahl, Hina Anwar
Reviewer: Alejandra Duque-Torres

June 3 (online):

Time: 10:30
Student: Olivier Levasseur (Cyber Security MSc)
Title: Model-Driven Engineering of Blockchain Oracles
Supervisor: Mubashar Iqbal, Raimundas Matulevičius
Reviewer: Vimal Kumar Dwivedi

Time: 11:15
Student: Ekaterina Zhuchko (Cyber Security MSc)
Title: Formal Analysis of Non-Malleability for Commitment Schemes in EasyCrypt
Supervisor: Denis Firsov, Sven Laur
Reviewer: Peeter Laud

Time: 12:00
Student: Sanam Nisar (Cyber Security MSc)
Title: Defining Blockchain-Based Techniques for Privacy Conflict-Resolution in CrossOrganizational Processes for E-Health Systems
Supervisor: Aleksandr Kormiltsyn, Alex Norta, Vimal Dwivedi
Reviewer:

Time: 12:45
Student: Anel Abylkassymova (Cyber Security MSc)
Title: Machine Learning Method For Detecting Botnet Attacks Originated From The Iot Networks
Supervisor: Hayretdin Bahsi, Sven Nõmm, Raimundas Matulevicius
Reviewer: Risto Vaarandi

Time: 13:30
Student: Gediminas Milašius (Cyber Security MSc)
Title: Integration Analysis of Various eID Authentication Solutions Used in the Private Sector of Estonia
Supervisor: Arnis Paršovs
Reviewer: Kristjan Krips

Time: 14:15
Student: Elizabete Liene Šterna (Cyber Security MSc)
Title: Security Architecture of the Latvian eParaksts mobile
Supervisor: Arnis Paršovs
Reviewer: Inguss Treiguts

June 7:

Time: 12:15
Student: Anna Shamritskaya (Innovation and Technology Management MSc)
Title: Information security assessment in a startup
Supervisor: Mari Seeba, Raimundas Matulevičius
Reviewer: Juliia Trabskaja

Time: 9:15
Student: Anita Sarv (Computer Science BSc)
Title: Implementation of multifactor authentication in Bank of Estonia
Supervisor: Toomas Krips
Reviewer: Jürmo Mehine

Time: 10:45
Student: Mark Robin Kalder (Computer Science BSc)
Title: Bug bounty programs and ethical hacking
Supervisor: Alo Peets, Margus Niitsoo
Reviewer: Anne Villems

Time: 12:00
Student: Allan Alikas (Computer Science BSc)
Title: Privacy preserving anonymization software
Supervisor: Sulev Reisberg
Reviewer: Liina Kamm

June 8:

Time: 10:00
Student: Semjon Kravtšenko (Computer Science BSc)
Title: The Estonian Mobile-ID implementation on the SIM card
Supervisor: Arnis Paršovs
Reviewer: Jürgen Niinre

June 9:

Time: 13:00
Student: Kristjan Pühvel (Computer Science BSc)
Title: Password cracking and hashing functions on the example of UT accounts
Supervisor: Alo Peets
Reviewer: Kristjan Krips

June 10:

Time: 14:30
Student: Kalmer Keerup (Computer Science BSc)
Title: Implementation of an user access control respecting file server
Supervisor: Tarmo Oja, Heili Orav
Reviewer: Mart Oruaas

Links:
https://cs.ut.ee/sites/default/files/2022-06/Defence7.6.22.pdf
https://cs.ut.ee/sites/default/files/2022-06/Kaitsmine%2008.06.2022_0.pdf
https://cs.ut.ee/sites/default/files/2022-06/Kaitsmine%2010.06.2022_0.pdf

Cybersecurity related bachelor’s and master’s theses in University of Tartu 2020 (June)

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Cybersecurity related bachelor’s and master’s theses in University of Tartu 2020 (June)

The defences are taking place on the first and second week of June.

Student: Eric Cornelissen (Computer Science MSc)
Title: Cryptographic Analysis of the Message Layer Security Protocol in the Static Corruption Model
Supervisor: Chris Brzuska, Dominique Unruh
Reviewer: Behzad Abdolmaleki

Student: Risto Pärnapuu (Computer Science MSc)
Title: Verifiable Photo Snapshots
Supervisor: Sven Laur, Ahto Truu
Reviewer: Arnis Paršovs

Student: Anita Onyinye Nwaokolo (Cyber Security MSc)
Title: A Comparison of Privacy Enhancing Technologies in Internet of Vehicle Systems
Supervisor: Raimundas Matulevicius, Abasi-amefon Obot Affia
Reviewer: Pille Pullonen

Student: Rando Tõnisson (Software Engineering MSc)
Title: Security Risk Management in Autonomous Driving Vehicles: Architecture Perspective
Supervisor: Raimundas Matulevičius, Abasi-Amefon O. Affia
Reviewer: Danielle Morgan

Student: Silver Maala (Computer Science BSc)
Title: A Proof of Concept Malware for Interacting with the Smart-ID Android Application
Supervisor: Arnis Paršovs
Reviewer: Mart Oruaas

Student: Kärt Ilja (Computer Science BSc)
Title: Intercepting Network Traffic of the Smart-ID Android Application
Supervisor: Arnis Paršovs
Reviewer: Mart Oruaas

Student: Siim-Alexander Kütt (Computer Science BSc)
Title: Security Analysis of Tartu Smart Bike Share Android Application
Supervisor: Arnis Paršovs
Reviewer: Kristjan Krips

Student: Gregor Eesmaa (Computer Science BSc)
Title: Authorization of Web Requests Based on Merkle Trees
Supervisor: Kristjan Krips
Reviewer: Arnis Paršovs

Student: Hendrik Eerikson (Computer Science BSc)
Title: Privacy Preserving Fingerprint Idenfication
Supervisor: Riivo Talviste, Kristjan Krips
Reviewer: Jan Villemson

Student: Sergei Kuštšenko (Computer Science BSc)
Title: Implementation of election bulletin board using HyperLedger Fabric
Supervisor: Ivo Kubjas
Reviewer: Jan Villemson

Student: Markus Punnar (Computer Science BSc)
Title: Cryptosystem for Post-Quantum Age Based on Moderate-Density Parity Check (MDPC) Codes
Supervisor: Vitaly Skachek, Irina Bocharova
Reviewer: Raul Martin Rebane

Links:
https://www.cs.ut.ee/sites/default/files/cs/kaitsmised_-_defences_ver04-06-20.pdf
https://comserv.cs.ut.ee/ati_thesis/index.php?year=2020

Cybersecurity related bachelor’s and master’s theses in University of Tartu 2018/2019 (June)

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The defences are taking place on the first and second week of June.

Student: Ivo Pure (Cyber Security MSc)
Title: An Automated Methodology for Validating Web Related Cyber Threat Intelligence by Implementing a Honeyclient
Supervisor: Risto Vaarandi, Raimundas Matulevicius
Reviewer: Alejandro Manzanares

Student: Bruno Didier Produit (Cyber Security MSc)
Title: Optimization of the ROCA (CVE-2017-15361) Attack
Supervisor: Arnis Paršovs
Reviewer: Jan Villemson

Student: Kärt Padur (Cyber Security MSc)
Title: Information Security Risk Assessment in the Context of Outsourcing in a Financial Institution
Supervisor: Raimundas Matulevičius, Liis Rebane, Toomas Vaks
Reviewer: Andro Kull

Student: Marek Matsalu (Cyber Security MSc)
Title: The Development of Digital Forensics Workforce Competency on the Example of Estonian Defence League
Supervisor: Raimundas Matulevičius, Hillar Põldmaa
Reviewer: Hayretdin Bahsi

Student: Pubudini Gayanjalie Dissanayake (Cyber Security MSc)
Title: A Comparison of Security Risk Analysis in the In-house IT Infrastructure and Cloud Infrastructure for the Payment Gateway System
Supervisor: Hayretdin Bahsi, Raimundas Matulevičius
Reviewer: Alexander Horst Norta

Student: Lukáš Bortník (Cyber Security MSc)
Title: Mobile Phone Digital Evidence Providers to Investigate Driver’s Distraction
Supervisor: Pavel Laptev, Satish Narayana Srirama
Reviewer: Matthew Sorell

Student: Mari Seeba (Conversion Master in IT)
Title: A Specification of Layer-Based Information Security Management System for the Issue Tracking System
Supervisor: Raimundas Matulevičius, Ahto Buldas
Reviewer: Meelis Roos

Student: Doris Sarapuu (Conversion Master in IT)
Title: Penetration Testing of Glia’s Web Application
Supervisor: Kristjan Krips, Carlos Paniagua
Reviewer: Riivo Talviste

Student: Kaspar Kala (Conversion Master in IT)
Title: Refinement of the General Data Protection Regulation (GDPR) Model: Administrative Fines Perspective
Supervisor: Raimundas Matulevičius, Jake Tom
Reviewer: Eneken Tikk

Student: Maksym Yerokhin (Software Engineering MSc)
Title: Multi-level Policy-aware Privacy Analysis
Supervisor: Pille Pullonen, Luciano García-Bañuelos
Reviewer: Sara Belluccini

Student: Reelika Tõnisson (Computer Science MSc)
Title: Tighter Post-quantum Secure Encryption Schemes Using Semi-classical Oracles
Supervisor: Dominique Peer Ghislain Unruh
Reviewer: Sven Laur

Student: Helen Tera (Computer Science BSc)
Title: Introduction to Post-Quantum Cryptography in Scope of NIST’s Post-Quantum Competition
Supervisor: Dominique Unruh
Reviewer: Raul-Martin Rebane

Student: Omar Purik (Computer Science BSc)
Title: Creation of Practical Assignments on Information Security for High School Students
Supervisor: Kristjan Krips, Tauno Palts
Reviewer:

Links:
https://comserv.cs.ut.ee/ati_thesis/index.php?year=2019
https://www.cs.ut.ee/sites/default/files/www_ut/kaitsmised_v_30-05.pdf

Cybersecurity related bachelor’s and master’s theses in University of Tartu 2015/2016

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Defense committee: Dominique Unruh (chairman), Siim Karus, Vitaly Skachek, Dirk Oliver Theis, Raimundas Matulevicius.

A Cost-Effective Approach to Key Management in Online Voting Scenarios
Abstract: Since smart cards both offer reasonable prices and expose an API for development, this document evaluates different approaches to implement threshold encryption over smart cards to support an electoral process.
Student: Sergio Andrés Figueroa Santos
Curriculum: NordSecMob (MSc)
Supervisor: Sven Heiberg, Helger Lipmaa, Tuomas Aura
Reviewer: Ivo Kubjas
Defense: 02.06.2016, 09:00, Liivi 2-405

Revision of Security Risk-oriented Patterns for Distributed Systems
Abstract: In this thesis, we target the secure system development problem by suggesting application of security risk-oriented patterns. The applicability of these security risk-oriented patterns is validated on business processes from aviation turnaround system.
Student: Silver Samarütel
Curriculum: Software Engineering (MSc)
Supervisor: Raimundas Matulevicius
Reviewer: Alexander Horst Norta
Defense: 02.06.2016, 09:00, Liivi 2-405

Role Based Access Control as SecureUML Model in Web Applications Development with Spring Security
Abstract: In order to support and simplify the model-driven approach for a web application development with Spring platform, realization of a concept plugin for Eclipse IDE is proposed. This plugin supports the recognition of Spring Security notations with capability to visualize the RBAC model on top of them.
Student: Andrey Sergeev
Curriculum: Cyber Security (MSc)
Supervisor: Raimundas Matulevicius
Reviewer: Henri Lakk
Defense: 02.06.2016, 09:00, Liivi 2-405

Secure and Efficient Mix-Nets
Abstract: This thesis studies a zero-knowledge shuffle argument proposed by J. Furukawa in 2005. Firstly, we provide a more detailed and easily readable description of the shuffle and shuffle-decryption zero-knowledge protocols than in the original paper. Secondly, we provide two new characterizations of a permutation matrix and two simple modifications of the shuffle protocol that reduce the computational complexity.
Student: Janno Siim
Curriculum: Computer Science (MSc)
Supervisor: Helger Lipmaa
Reviewer: Sven Laur
Defense: 02.06.2016, 09:00, Liivi 2-405

A Comprehensive Protocol Suite for Secure Two-Party Computation
Abstract: In some scenarios, a two-party model is a better fit when no natural third party is involved in the application. In this work, we design and implement a full protocol suite for two-party computations on Sharemind, providing an alternative and viable solution in such cases.
Student: Sander Siim
Curriculum: Computer Science (MSc)
Supervisor: Dan Bogdanov, Pille Pullonen
Reviewer: Dominique Unruh
Defense: 06.06.2016, 09:00, Liivi 2-405

An improved type system for a privacy-aware programming language and its practical applications
Abstract: he goal of this thesis is to make it easier to add protection domain kinds to the SecreC language by allowing the programmer to define the protection domain kind data types, arithmetic operations and type conversions in the SecreC language without changing the compiler.
Student: Ville Sokk
Curriculum: Computer Science (MSc)
Supervisor: Dan Bogdanov, Jaak Randmets
Reviewer: Vesal Vojdani
Defense: 06.06.2016, 09:00, Liivi 2-405

Energy Harvesting in Cooperative Communications
Abstract: Energy harvesting (EH) is a crucial technology for a variety of wireless systems that have limited access to a reliable electricity supply or recharging sources. In this thesis, the design of a multiple access relay system (MARS) using EH is considered.
Student: Akashkumar Rajaram
Curriculum: Cyber Security (MSc)
Supervisor: Nalin Jayakody, Vitaly Skachek
Reviewer: Bin Chen
Defense: 06.06.2016, 09:00, Liivi 2-405

Security of Eduroam Passwords
Abstract: The University of Tartu has decided that the university’s eduroam accounts will share the same user credentials as the rest of the university’s services. This could potentially be abused by exploiting weaknesses in wireless security in order to gain access to a user’s university account. The aim of this research was to uncover any such weaknesses.
Student: Raul-Martin Rebane
Curriculum: Computer Science (BSc)
Supervisor: Dominique Unruh
Reviewer: Meelis Roos
Defense: 06.06.2016, 09:00, Liivi 2-405

Applying a Security Testing Methodology: a Case Study
Abstract: This thesis aims to describe and apply a process necessary to verify the security of a web application. A checklist of security requirements was gathered combining OWASP ASVS web application security standard and OWASP Top Ten project.
Student: Karin Klooster
Curriculum: Computer Science (BSc)
Supervisor: Meelis Roos, Margus Freudenthal
Reviewer: Kritjan Krips
Defense: 08.06.2016

Word frequency based log analysis
Abstract: The purpose of this bachelor thesis is to explore if you can use word frequency based analysis for log files and find interesting events without knowing the log structure.
Student: Karl Lääts
Curriculum: Computer Science (BSc)
Supervisor: Meelis Roos
Reviewer: Artjom Lind
Defense: 08.06.2016

Randomly Distributed PIN Code Input Layout
Abstract: This thesis examines the possibility of reducing the visual security breach of PIN code input by randomising the input field.
Student: Rain Tõugjas
Curriculum: Computer Science (BSc)
Supervisor: Tauno Palts, Kristjan Krips
Reviewer:
Defense: 08.2016

Smart Home Hacking
Abstract: This work investigates the security and privacy issues found at an emerging smart home technology such as the CoSSMic platform.
Student: Suela Kodra
Curriculum: NordSecMob (MSc)
Supervisor: Danilo Gligoroski, Marie Moe, Dominique Unruh
Reviewer: Raimundas Matulevičius
Defense: 18.08.2016, 09:30, Liivi 2-403

Cache-Timing Techniques: Exploiting the DSA Algorithm
Abstract: This work explains some of the cache-timing techniques commonly used to exploit vulnerable software. Using a particular combination of techniques and exploiting a vulnerability found in the implementation of the DSA signature scheme in the OpenSSL shared library, a cache-timing attack is performed against the DSA’s sliding window exponentiation algorithm.
Student: Cesar Pereida Garcia
Curriculum: NordSecMob (MSc)
Supervisor: Billy Bob Brumley, Dominique Unruh, N. Asokan
Reviewer: Arnis Paršovs
Defense: 26.08.2016, 11:00, Liivi 2-403

Links:
https://comserv.cs.ut.ee/ati_thesis/index.php?year=2016
http://www.cs.ut.ee/sites/default/files/2016/loput88d/Kaitsmiste%20ajakava.pdf

PhD thesis: “Applying Secure Multi-party Computation in Practice”

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Riivo Talviste PhD thesis: “Applying Secure Multi-party Computation in Practice”
Defense date: 14.03.2016 – 16:15 (J. Liivi 2-405, Tartu, Estonia)

Thesis supervisor: Senior Research Fellow Sven Laur, Project manager Dan Bogdanov

Opponents:
Professor Stefan Katzenbeisser, Technische Universität Darmstadt (Germany)
Associate Professor Kurt Rohloff, New Jersey Institute of Technology (Newark, USA)

Summary:
In this work, we present solutions for technical difficulties in deploying secure multi-party computation in real-world applications. We will first give a brief overview of the current state of the art, bring out several shortcomings and address them.
The main contribution of this work is an end-to-end process description of deploying secure multi-party computation for the first large-scale registry-based statistical study on linked databases. Involving large stakeholders like government institutions introduces also some non-technical requirements like signing contracts and negotiating with the Data Protection Agency.

Links:
http://www.ut.ee/en/events/riivo-talviste-applying-secure-multi-party-computation-practice

Evaluation of Research in ICT in Estonia 2009–2014: Evaluation Report 5/2015

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Tallinn University of Technology:

4.4.15. Research Group: Faculty of Information Technology: Cyber Security
The group is led by Prof. Olaf Maennel. It is a very young and active group, started around 2013. The main interests of the group are in intrusion detection, testing security policies, and security simulation exercises. They have gained a European FP7 project on E-Crime. The group is still establishing itself in research and its activities are promising. The number and quality of publications is still limited and should be increased. This can be done since the leader of the group is well cited. Assessment: The panel judges the research to be of high international level. The overall evaluation of the group is good.

University of Tartu:

4.6.10. Research Group: Institute of Computer Science: Cryptography and Theoretical Computer Science
This group represents a number of subunits, with 6 topics led by 5 lead PIs (Sven Laur, Helger Lipmaa, Vitaly Skachek, Dirk Oliver Theis, Dominique Unruh). The group was restructured in 2011 with the recruitment of Unruh and Lipmaa. The group addresses six key research topics, namely classical cryptography, quantum cryptography, coding theory, combinatorics and algorithms, security, and verification of cryptography. All topics are related to computer security.
The research highlights include quantum proofs of knowledge, privacy-preserving data-mining, efficient non-interactive zero-knowledge proofs, communication complexity and the rank of matrices, and permutation codes. The group claims 8 level 1.1 publications, which seems a bit low. However, it is also a bit misleading since their list of 30 best papers includes 11 articles in top or at least internationally well recognized journals (J Cryptology, European J Combinatorics, IEEE Tr Information Theory, IEEE J selected areas in communication, Theoretical Computer Science, Journal of Computer Security, Bioinformatics, European J. Operations Research), besides 7 papers in the very best conferences (FOCS, Crypto, Eurocrypt, ICALP). Remaining top 30 items are papers in more specialized cryptography and security venues like ACM CCS, PKC, SCN, CSF, Eurocomb. Publication rate of top level papers has increased significantly over the evaluation period.
Many of the students (10+) are working in related industrial SMEs such as Cybernetica. They are contributing to several practical applications such as e-voting. The group is recommended to keep its current high quality and volume of output, and to develop some additional internationally financed projects. Based on the evidence, panel judges the research to be of high international level. Because of the strong upward trend the overall evaluation of the group is excellent.

Links:
http://www.etag.ee/wp-content/uploads/2012/05/Evaluation_raport2015veeb.pdf