Vashek Matyas

2024

2023

2022

  • Assessing Real-World Applicability of Redesigned Developer Documentation for Certificate Validation Errors
    Martin Ukrop, Michaela Balážová, Pavol Žáčik, Eric Vincent Valčík and Vashek Matyas,
    Proceedings of the 2022 European Symposium on Usable Security, ACM, 2022, 131-144.
    Keywords: usablesec, red-hat, pre-print PDF, DOI website, BibTeX
  • DiSSECT: Distinguisher of Standard and Simulated Elliptic Curves via Traits
    Vladimir Sedlacek, Vojtech Suchanek, Antonin Dufka, Marek Sys and Vashek Matyas,
    Progress in Cryptology - AFRICACRYPT 2022, Springer Nature Switzerland, 2022, 493-517.
    pre-print PDF, DOI website, BibTeX
  • Even if users do not read security directives, their behavior is not so catastrophic
    Vashek Matyas, Kamil Malinka, Lydia Kraus, Lenka Knapova and Agata Kruzikova,
    Communications of the ACM, ACM, 2022, 37–40.
    Keywords: usablesec, directive, DOI website, BibTeX
  • Usability Insights from Establishing TLS Connections
    Lydia Kraus, Matej Grabovsky, Martin Ukrop, Katarina Galanska and Vashek Matyas,
    ICT Systems Security and Privacy Protection, Springer International Publishing, 2022.
    Keywords: usablesec, pre-print PDF, DOI website, BibTeX

2020

  • Biased RSA private keys: Origin attribution of GCD-factorable keys
    Adam Janovsky, Matus Nemec, Petr Svenda, Peter Sekan and Vashek Matyas,
    25th European Symposium on Research in Computer Security (ESORICS) 2020, Springer, 2020.
    Keywords: rsa, bias, classification, smartcard, cryptoimplementations, BibTeX
  • Evolution of SSL/TLS Indicators and Warnings in Web Browsers
    Lydia Kraus, Martin Ukrop, Vashek Matyas and Tobias Fiebig,
    27th International Workshop on Security Protocols (SPW 2019), Springer International Publishing, 2020, 267–280.
    Keywords: usablesec, pre-print PDF, DOI website, BibTeX
  • Privacy-Friendly Monero Transaction Signing on a Hardware Wallet
    Dusan Klinec and Vashek Matyas,
    ICT Systems Security and Privacy Protection - 35th IFIP TC 11 International Conference, SEC 2020, Maribor, Slovenia, September 21-23, 2020, Proceedings, Springer, 2020, volume 580 of {IFIP} Advances in Information and Communication Technology, 338–351.
    Keywords: monero, bulletproofs, hardware wallets, cryptocurrency, cryptoimplementations, smpc, pre-print PDF, DOI website, BibTeX
  • User Testing of Mobile Banking Authentication Methods: UX Testing, User Interviews and Quantitative Survey
    Agata Kruzikova, Lenka Knapova, Ondrej Gabrhelik, David Smahel, Lenka Dedkova, Vashek Matyas, Petr Dolezal and Martina Smahelova,
    Technical report, Masaryk University, 2020.
    pre-print PDF, BibTeX
  • Will You Trust This TLS Certificate? Perceptions of People Working in IT (Extended Version)
    Martin Ukrop, Lydia Kraus and Vashek Matyas,
    Digital Threats: Research and Practice, Association for Computing Machinery, 2020.
    Keywords: usablesec, red-hat, pre-print PDF, DOI website, BibTeX

2019

  • I Want to Break Square-free: The 4p−1 Factorization Method and Its RSA Backdoor Viability
    Vladimir Sedlacek, Dusan Klinec, Marek Sys, Petr Svenda and Vashek Matyas,
    Proceedings of the 16th International Joint Conference on e-Business and Telecommunications (ICETE 2019) - Volume 2: SECRYPT, SciTePress, 2019, 25-36.
    Keywords: ecc, factorization, smartcards, cryptoimplementations, pre-print PDF, DOI website, BibTeX
  • Will You Trust This TLS Certificate? Perceptions of People Working in IT
    Martin Ukrop, Lydia Kraus, Vashek Matyas and Heider Ahmad Mutleq Wahsheh,
    Proceedings of the 35rd Annual Computer Security Applications Conference (ACSAC'2019), ACM, 2019.
    Keywords: usablesec, red-hat, pre-print PDF, DOI website, BibTeX

2018

  • A Large-scale Comparative Study of Beta Testers and Regular Users
    Vlasta Stavova, Lenka Dedkova, Martin Ukrop and Vashek Matyas,
    Communications of the ACM, ACM, 2018, 64–71.
    Keywords: usablesec, eset, pre-print PDF, DOI website, BibTeX
  • Why Johnny the Developer Can't Work with Public Key Certificates: An Experimental Study of OpenSSL Usability
    Martin Ukrop and Vashek Matyas,
    Topics in Cryptology – CT-RSA 2018: The Cryptographers' Track at the RSA Conference 2018, Springer International Publishing, 2018, 45–64.
    Keywords: usablesec, red-hat, pre-print PDF, DOI website, BibTeX

2017

  • Measuring Popularity of Cryptographic Libraries in Internet-Wide Scans
    Matus Nemec, Dusan Klinec, Petr Svenda, Peter Sekan and Vashek Matyas,
    Proceedings of the 33rd Annual Computer Security Applications Conference (ACSAC 2017), ACM, 2017.
    Keywords: cryptolibs, rsa, fingerprinting, smartcard, cryptoimplementations, DOI website, BibTeX
  • The Return of Coppersmith’s Attack: Practical Factorization of Widely Used RSA Moduli
    Matus Nemec, Marek Sys, Petr Svenda, Dusan Klinec and Vashek Matyas,
    24th ACM Conference on Computer and Communications Security (CCS'2017), ACM, 2017, 1631–1648.
    Keywords: rsa, cryptoimplementations, BibTeX

2016

  • Reconsidering Attacker Models in Ad-hoc Networks
    Radim Ostadal, Petr Svenda and Vashek Matyas,
    24th International Workshop on Security Protocols (SPW 2016), Springer, 2016.
    Keywords: wsn, BibTeX
  • The Million-Key Question – Investigating the Origins of RSA Public Keys
    Petr Svenda, Matus Nemec, Peter Sekan, Rudolf Kvasnovsky, David Formanek, David Komarek and Vashek Matyas,
    FI MU Report Series, FIMU-RS-2016-03, Masaryk University, 2016, 1–83.
    Keywords: rsa, BibTeX
  • The Million-Key Question – Investigating the Origins of RSA Public Keys
    Petr Svenda, Matus Nemec, Peter Sekan, Rudolf Kvasnovsky, David Formanek, David Komarek and Vashek Matyas,
    The 25th USENIX Security Symposium (UsenixSec'2016), USENIX, 2016, 893–910.
    Keywords: rsa, cryptoimplementations, pre-print PDF, BibTeX

2015

  • On Secrecy Amplification Protocols
    Radim Ostadal, Petr Svenda and Vashek Matyas,
    The 9th WISTP International Conference on Information Security Theory and Practice (WISTP–2015), LNCS 9311, Springer, 2015, 3–19.
    Keywords: wsn, DOI website, BibTeX

2014

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2012

2011

2009