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Blockchain consensus, rooted in the principle ``don't trust, verify'', limits access to real-world data, which may be ambiguous or inaccessible to some participants. Oracles address this limitation by supplying data to blockchains, but…

Trust Management (TM) systems for authentication are vital to the security of online interactions, which are ubiquitous in our everyday lives. Various systems, like the Web PKI (X.509) and PGP's Web of Trust are used to manage trust in this…

Cryptography and Security · Computer Science 2017-11-15 Nikolaos Alexopoulos , Jörg Daubert , Max Mühlhäuser , Sheikh Mahbub Habib

Academic publications of latest research results are crucial to advance the development of all disciplines. However, there are several severe disadvantages in current academic publication systems. The first is the misconduct during the…

Cryptography and Security · Computer Science 2021-02-18 Yan Zhou , Zhiguo Wan , Zhangshuang Guan

We present TOPO (Time-Ordered Provable Outputs), a tool designed to enhance reproducibility and data integrity in astrophysical research, providing a trustless alternative to data analysis blinding. Astrophysical research frequently…

Instrumentation and Methods for Astrophysics · Physics 2024-11-25 Santiago Casas , Christian Fidler

Software services play a crucial role in daily life, with automated actions determining access to resources and information. Trusting service providers to perform these actions fairly and accurately is essential, yet challenging for users…

Software Engineering · Computer Science 2025-02-17 Eduardo Brito , Fernando Castillo , Pille Pullonen-Raudvere , Sebastian Werner

According to experts, one third of all IT vulnerabilities today are due to inadequate software verification. Internal program processes are not sufficiently secured against manipulation by attackers, especially if access has been gained.…

Cryptography and Security · Computer Science 2022-11-22 Erik Heiland , Peter Hillmann

Many types of formal verification establish properties about abstract high-level program representations, leaving a large gap to programs at runtime. Although gaps can sometimes be narrowed by techniques such as refinement, a verified…

Logic in Computer Science · Computer Science 2025-03-19 Karl Palmskog , Andreas Lindner , Scott Constable , Roberto Guanciale , Hamed Nemati

The performance figures of modern drift-adaptive malware classifiers appear promising, but does this translate to genuine operational reliability? The standard evaluation paradigm primarily focuses on baseline performance metrics,…

Cryptography and Security · Computer Science 2026-01-22 Alexander Herzog , Aliai Eusebi , Lorenzo Cavallaro

Truxen is a Trusted Computing enhanced blockchain that uses Proof of Integrity protocol as the consensus. Proof of Integrity protocol is derived from Trusted Computing and associated Remote Attestations, that can be used to vouch a node's…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-04-18 Chao Zhang

When deploying mission-critical systems in the cloud, where deviations may have severe consequences, the assurance of critical decisions becomes essential. Typical cloud systems are operated by third parties and are built on complex…

Software Engineering · Computer Science 2023-12-20 Lev Sorokin , Ulrich Schoepp

Verification is the process of checking whether a product has been implemented according to its prescribed specifications. We study the case of a designer (the developer) that needs to verify its design by a third party (the verifier), by…

Cryptography and Security · Computer Science 2016-05-13 Yixian Cai , George Karakostas , Alan Wassyng

Obelia improves upon structured DAG-based consensus protocols used in proof-of-stake systems, allowing them to effectively scale to accommodate hundreds of validators. Obelia implements a two-tier validator system. A core group of…

Cryptography and Security · Computer Science 2024-11-07 George Danezis , Lefteris Kokoris-Kogias , Alberto Sonnino , Mingwei Tian

We present a passport-level trust token for Europe. In an era of escalating cyber threats fueled by global competition in economic, military, and technological domains, traditional security models are proving inadequate. The rise of…

Cryptography and Security · Computer Science 2025-02-21 Adrian-Tudor Dumitrescu , Johan Pouwelse

Deliberative democratic theory suggests that civic competence: the capacity to navigate disagreement, weigh competing values, and arrive at collective decisions is not innate but developed through practice. Yet opportunities to cultivate…

Human-Computer Interaction · Computer Science 2026-04-08 Prerna Ravi , Om Gokhale , Suyash Fulay , Eugene Yi , Deb Roy , Michiel Bakker

In this paper we address the issue of identity and access control within shared permissioned blockchains. We propose the ChainAchor system that provides anonymous but verifiable identities for entities on the blockchain. ChainAchor also…

Cryptography and Security · Computer Science 2019-03-13 Thomas Hardjono , Alex Pentland

In Ethereum, the practice of verifying the validity of the passed addresses is a common practice, which is a crucial step to ensure the secure execution of smart contracts. Vulnerabilities in the process of address verification can lead to…

Cryptography and Security · Computer Science 2024-06-03 Tianle Sun , Ningyu He , Jiang Xiao , Yinliang Yue , Xiapu Luo , Haoyu Wang

Oracle networks feeding off-chain information to a blockchain are required to solve a distributed agreement problem since these networks receive information from multiple sources and at different times. We make a key observation that in…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-05-15 Prasanth Chakka , Saurabh Joshi , Aniket Kate , Joshua Tobkin , David Yang

Cryptographic verification is essential for establishing trust in quantum-computing-as-a-service. However, a fundamental gap exists in the current verification landscape: existing efficient protocols are largely restricted to decision…

Quantum Physics · Physics 2026-01-23 Bo Yang , Elham Kashefi , Harold Ollivier

Business transactions by public firms are required to be reported, verified, and audited periodically, which is traditionally a labor-intensive and time-consuming process. To streamline this procedure, we design FutureAB (Future Auditing…

Cryptography and Security · Computer Science 2020-05-18 Sean Cao , Lin William Cong , Meng Han , Qixuan Hou , Baozhong Yang

Verifying computational processes in decentralized networks poses a fundamental challenge, particularly for Graphics Processing Unit (GPU) computations. Our investigation reveals significant limitations in existing approaches: exact…

Emerging Technologies · Computer Science 2025-01-10 Eric Boniardi , Stanley Bishop , Alison Haire