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The emerging virtual asset service providers (VASP) industry currently faces a number of challenges related to the Travel Rule, notably pertaining to customer personal information, account number and cryptographic key information. VASPs…

Cryptography and Security · Computer Science 2020-06-01 Thomas Hardjono , Alexander Lipton , Alex Pentland

Blockchains is a special type of distributed systems that operates in unsafe networks. In most blockchains, all nodes should reach consensus on all state transitions with Byzantine fault tolerant algorithms, which creates bottlenecks in…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-12-17 Zhijie Ren , Zekeriya Erkin

The recent FATF Recommendations defines virtual assets and virtual assets service providers (VASP), and requires under the Travel Rule that originating VASPs obtain and hold required and accurate originator information and required…

Cryptography and Security · Computer Science 2019-09-19 Thomas Hardjono , Alexander Lipton , Alex Pentland

Virtual asset service providers (VASPs) currently face a number of challenges, both from the technological and the regulatory perspectives. In the context of virtual asset transfers one key issue is the need for VASPs to securely exchange…

Cryptography and Security · Computer Science 2020-09-09 Thomas Hardjono

Mobile service providers (MSPs) are particularly vulnerable to roaming frauds, especially ones that exploit the long delay in the data exchange process of the contemporary roaming management systems, causing multi-billion dollars loss each…

Cryptography and Security · Computer Science 2020-05-12 Cong T. Nguyen , Diep N. Nguyen , Dinh Thai Hoang , Hoang-Anh Pham , Nguyen Huynh Tuong , Yong Xiao , Eryk Dutkiewicz

Blockchain technology, beyond cryptocurrencies, is called to be the new information exchange ecosystem due to its unique properties, such as immutability and transparency. The main objective of this work is to introduce the design of a…

Cryptography and Security · Computer Science 2022-09-29 N García-Moreno , P Caballero-Gil , C Caballero-Gil , J Molina-Gil

The problem of a single point of failure in centralized systems poses a great challenge to the stability of such systems. Meanwhile, the tamperability of data within centralized systems makes users reluctant to trust and use centralized…

Cryptography and Security · Computer Science 2025-04-22 Ka Wai Wu

Blockchain technology has been envisaged to commence an era of decentralised applications and services (DApps) without the need for a trusted intermediary. Such DApps open a marketplace in which services are delivered to end-users by…

Cryptography and Security · Computer Science 2021-01-27 Nguyen Truong , Gyu Myoung Lee , Kai Sun , Florian Guitton , Yike Guo

A blockchain framework is presented for addressing the privacy and security challenges associated with the Big Data in smart mobility. It is composed of individuals, companies, government and universities where all the participants collect,…

Computers and Society · Computer Science 2018-09-18 David Lopez , Bilal Farooq

Blockchains and distributed ledger technology offer promising capabilities for supporting collaborative business processes across organizations. Typically, approaches in this field fall into two categories: either executing the entire…

Software Engineering · Computer Science 2023-12-13 Julius Köpke , Sebastian Trattnig

As a technology foundation of cryptocurrencies, blockchain enables decentralized peer-to-peer trading through consensus mechanisms without the involvement of a third party. Blockchain has been regarded as an auspicious technology for future…

Networking and Internet Architecture · Computer Science 2019-06-18 Ahmed Refaey , Karim Hammad , Sebastian Magierowski , Ekram Hossain

We propose a secure, stateless and composable transaction scheme to establish delivery-versus-payment (DvP) across two (or more) blockchains without relying on time-locks, centralized escrow, or stateful intermediaries. The method minimizes…

Cryptography and Security · Computer Science 2025-11-18 Christian P. Fries , Peter Kohl-Landgraf

This research gives a detailed analysis of the application of blockchain technology to the airline reservation systems in order to bolster trust, transparency, and operational efficiency by overcoming several challenges including customer…

Software Engineering · Computer Science 2024-10-21 Biman Barua , M. Shamim Kaiser

In order for VASPs to fulfill the regulatory requirements from the FATF and the Travel Rule, VASPs need access to truthful information regarding originators, beneficiaries and other VASPs involved in a virtual asset transfer instance.…

Cryptography and Security · Computer Science 2020-03-03 Thomas Hardjono , Alexander Lipton , Alex Pentland

Ride-sharing is a service that enables drivers to share their trips with other riders, contributing to appealing benefits of shared travel costs. However, the majority of existing platforms rely on a central third party, which make them…

Cryptography and Security · Computer Science 2019-11-15 Mohamed Baza , Noureddine Lasla , Mohamed Mahmoud , Gautam Srivastava , Mohamed Abdallah

Blockchain is a popular method to ensure security for trusted systems. The benefits include an auditable method to provide decentralized security without a trusted third party, but the drawback is the large computational resources needed to…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-10-24 Erik Blasch , Ronghua Xu , Yu Chen , Genshe Chen , Dan Shen

A decentralized online petition system enables individuals or groups to create, sign, and share petitions without a central authority. Using blockchain technology, these systems ensure the integrity and transparency of the petition process…

Cryptography and Security · Computer Science 2024-07-02 Jagdeep Kaur , Kevin Antony , Nikhil Pujar , Ankit Jha

One of the biggest challenges associated with connected and autonomous vehicles (CAVs) is to maintain and make use of vehicles health records (VHR). VHR can facilitate different entities to offer various services in a proactive,…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-07-28 Pranav Kumar Singh , Roshan Singh , Sukumar Nandi

Today, several solutions for cross-blockchain asset transfers exist. However, these solutions are either tailored to specific assets or neglect finality guarantees that prevent assets from getting lost in transit. In this paper, we present…

Cryptography and Security · Computer Science 2021-10-12 Marten Sigwart , Philipp Frauenthaler , Christof Spanring , Michael Sober , Stefan Schulte

Blockchain has received a widespread attention because of its decentralized, tamper-proof, and transparent nature. Blockchain works over the principle of distributed, secured, and shared ledger, which is used to record, and track data…

Cryptography and Security · Computer Science 2020-04-21 Muneeb Ul Hassan , Mubashir Husain Rehmani , Jinjun Chen
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