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Welcome to DISCRYPT, a dynamic research group from Universitat Autònoma de Barcelona dedicated to advancing knowledge in cybersecurity, cryptography, blockchain technologies, and data privacy.

2 July 2026

New LinkedIn profile for CYBERCAT

From DISCRYPT, we are pleased to celebrate the launch of CYBERCAT’s new LinkedIn profile, the R&D&I Network in Cybersecurity of Catalonia. This new space will share activities, projects, and collaboration opportunities while continuing to promote research, innovation, and knowledge transfer in cybersecurity across Catalonia.

17-21 Mar 2026

Discrypt at RECSI 2026

A delegation from DISCRYPT participated in RECSI 2026 in Tenerife, one of Spain’s leading conferences in cryptology and information security. Several DISCRYPT members presented their latest research, covering topics including privacy risks in federated learning, quantum computing and Bitcoin, useful proof-of-work mechanisms, hardware wallet fingerprinting, and modeling the Lightning Network. The conference provided an excellent opportunity to share research, exchange ideas, and strengthen collaborations within the Spanish cryptographic and cybersecurity community.

14 Oct 2025

We attended the 7th International Conference on Blockchain Computing and Applications (BCCA 2025)

Discrypt group members presented their research at the 7th International Conference on Blockchain Computing and Applications (BCCA 2025), held in Dubrovnik, Croatia, from October 14-17, 2025. The presentations focused on enhancing Bitcoin Core performance through machine learning-based UTXO set management and analyzing security risks in Ethereum’s non-custodial staking mechanisms.

14 Oct 2025

BCCA 2025: A Risk Analysis of Non-custodial Staking in Ethereum

We presented our research paper, “A Risk Analysis of Non-custodial Staking in Ethereum” at the 2025 Blockchain and Cryptocurrency Conference (BCCA). The paper examines the security and economic risks faced by Ethereum validators in non-custodial staking settings and quantifies the potential impact of validator key compromises. It also introduces two lightweight Python tools that enable users to generate and validate voluntary exit messages without running a full Ethereum node, improving transparency and safety for everyday stakers.

25 Sep 2025

We organized the 20th International Workshop on Data Privacy Management (DPM)

Our team organized the 20th International Workshop on Data Privacy Management (DPM) in Toulouse, France. The event provided an essential forum for leading experts to exchange ideas and present the latest research and strategies addressing data privacy challenges.

This year’s edition featured an invited keynote by Bart Preneel (held jointly with the CBT workshop), a renowned expert in cryptography and privacy. His talk surveyed the current landscape of privacy technologies, examined the policy debates surrounding their deployment, and explored the potential of blockchain to strengthen privacy-enhancing technologies. He also addressed the persistent tension between privacy protection and governmental demands for exceptional access, drawing on both historical precedents and recent controversies.

25 Sep 2025

We organized the 9th International Workshop on Cryptocurrencies and Blockchain Technology (CBT)

Our team successfully organized the 9th International Workshop on Cryptocurrencies and Blockchain Technology (CBT) in Toulouse, France. The workshop served as a forum for researchers and practitioners to exchange insights on recent advances in blockchain systems and privacy-enhancing technologies.

The event was highly interactive, fostering lively discussions among speakers and participants on a broad range of topics. These included alternative approaches to building privacy-preserving second-layer solutions, cryptographic designs for lotteries and electronic voting, the practical limits of selfish-mining attacks, the state of the art in self-sovereign identity (SSI) wallet deployment, and novel techniques for Ethereum Virtual Machine (EVM) decompilation.

28-29 May 2025

We attended the Cibersec+ workshop in UdL, Lleida

Discrypt group members gave various talks at the Cibersec+ workshop held at the University of Lleida. The topics presented included wallet fingerprinting, Bitcoin auctions, hardware wallet attacks, Lightning Network testbeds, and secure solutions for fair federated learning.

14 May 2025

Post-Quantum cryptography talk at BBO Meetup

Jordi Herrera gave a talk (catalan) in the BBO Meetup about the possible impact of a Cryptographically Relevant Quantum Computer (CRQC) on the Bitcoin system. He identified which parts of the system could be affected and outlined the path, through post-quantum cryptographic algorithms, that could be taken to mitigate potential damage.

6-7 May 2025

We gave two pitch talks at SMI2G

Discrypt group members went to Paris at SMI2G brokerage event to present their proposals looking for collaboration in international funded EU projects.

29 Apr 2025

We participated in the X Jornada Itscool

Jordi Herrera gave an outreach talk (catalan) during the X Jornada Itscool discussing the challenges of cybersecurity training. He highlighted the growing demand for skilled professionals in the field, as well as the need for broader education aimed at non-specialized users.

24 Apr 2025

Industry day by DANGER project, within the MEMEnginy

The Industry Day for the DANGER project, held within MEMEnginy on April 24, 2025 at the UAB School of Engineering, will bring together students and industry partners to showcase the project’s goals, methodologies and real-world applications in a hands-on, collaborative setting.

24 Apr 2025

Divulgation Day in DANGER project: Dices, Entropy and Bitcoin

Learn how to generate fully secure cryptocurrency wallet keys using nothing more than dice—even if they’re biased—in this hands-on workshop, “Dice, Entropy & Bitcoin: Cryptography with Imperfect Dice.” You’ll discover simple yet rigorous methods to ensure maximum entropy and learn how to derive BIP32‐compatible keys used by Bitcoin and other wallets. Join us on April 24, 2025, from 4:30 PM to 6:00 PM in Room Q1/1003 at the UAB School of Engineering for the MEMEnginy event.

28 Mar 2025

How is the refund transaction in Asymmetric Revocable Commitments constructed?

Our detailed explanation on constructing refund transactions in Asymmetric Revocable Commitments was featured in this week’s Bitcoin Optech Newsletter, based on an answer provided on Bitcoin StackExchange. This highlights our expertise and contributions to understanding complex Bitcoin protocols.

24 Mar 2025

A PR from polespinasa is merged into Bitcoin Core!

A significant contribution by polespinasa was successfully merged into Bitcoin Core, marking an important step towards improving Bitcoin’s robustness and functionality. This merge highlights our active engagement with the open-source Bitcoin community.

4 Feb 2025

We attended the DANGER project workshop in URV, Tarragona

We attended the DANGER project workshop hosted by Universitat Rovira i Virgili (URV) in Tarragona, focusing on advanced security mechanisms in blockchain technologies. Discussions emphasized addressing emerging threats in distributed ledger systems.

23 Oct 2024

We attended the XVIII Reunión Española de Criptología y Seguridad de la Información (RECSI)

We participated in the XVIII Reunión Española de Criptología y Seguridad de la Información (RECSI), held in León. The conference offered valuable insights into the latest trends and research within the cryptography and cybersecurity communities.

19 Sep 2024

We organized the 18th International Workshop on Data Privacy Management

Our team organized the 18th International Workshop on Data Privacy Management (DPM) in Bydgoszcz, Poland. The event provided an essential forum for leading experts to exchange ideas and present the latest research and strategies addressing data privacy challenges.

19 Sep 2024

We organized the 8th International Workshop on Cryptocurrencies and Blockchain Technology

Our team successfully organized the 8th International Workshop on Cryptocurrencies and Blockchain Technology (CBT) in Bydgoszcz, Poland. This workshop provided a collaborative platform for experts to discuss advancements in blockchain and privacy management.

27 Aug 2024

MDAI 2024: Decision Tree Based Inference of Lightning Network Client Implementations

We presented our research paper, “Decision Tree Based Inference of Lightning Network Client Implementations,” at the prestigious Modeling Decisions for Artificial Intelligence (MDAI) conference in Tokyo. The paper introduces a novel approach to identifying Lightning Network client implementations through decision tree analysis.

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