Introducing Privacy-Enhancing Technologies to Consortium Blockchains

Blockchain technology has revolutionized the way data is stored, managed, and shared across various industries. Its decentralized nature and immutability make it highly attractive in use cases that require transparency, integrity, and accountability. However, some applications demand confidentiality, necessitating the development of permissioned...

Creating a TPM based smart contract for the Medical Supply Chain in Hyperledger Fabric

Smart contracts play an important role within the blockchain by ensuring that valid transactions are being recorded. However, there are critical concerns regarding the security and privacy of data within these blockchain applications. This research provides information on how the integration of the Trusted Platform Module can achieve more...

Blockchain-based DNS and PKI to solve issues of trust, security and censorship in the context of the IoT

The domain name system (DNS) and public key infrastructure (PKI) provide the core services for the Internet. The use of these systems requires trust in institutions to provide proper services, which they can fail to provide. Centralized management allows these institutions to perform censorship. Additionally, these legacy systems have seen...

Independent verification of validator performance in the XRP ledger

The XRP network (Ripple network) is a global transaction network that settles trans- actions in seconds. It is a technology that provides new opportunities for traditional fi- nancial institutions and startups. In the XRP network, participants depend on each other’s functioning. However, at present Ripple Labs, Inc. is the only actor monitor-...

TrustChain: A Sybil-resistant scalable blockchain

TrustChain is capable of creating trusted transactions among strangers without central control. This enables new areas of blockchain use with a focus on building trust between individuals. Our innovative approach offers scalability, openness and Sybil-resistance while replacing proof-of-work with a mechanism to establish the validity and...

Creating trust through verification of interaction records

Trust on the internet is largely facilitated by reputation systems on centralized online platforms. How- ever reports of data breaches and privacy issues on such platforms are getting more frequent. We argue that only a decentralized trust system can enable a privacy-driven and fair future of the online economy. This requires a scalable system...

Credit Mining: An Incentive and Boosting System in a Peer-to-Peer File-sharing Network

Since the dawn of BitTorrent technology, free-riding has always been a critical<br/>issue restricting the performance and availability of the BitTorrent network. To solve this problem, BitTorrent involves a tit-for-tat mechanism which does not function satisfactorily against free-riding. Private trackers implement credit systems to eliminate...

Laws for Creating Trust in the Blockchain Age

Humanity’s notion of trust is shaped by new platforms operating in the emerging sharing economy, acting as intermediate matchmaker for ride sharing, housing facilities or freelance labour, effectively creating an environment where strangers trust each other. While millions of people worldwide rely on online sharing activities, such services are...

Blockchain in government: Benefits and implications of distributed ledger technology for information sharing

Blockchain refers to a range of general purpose technologies to exchange information and transact digital assets in distributed networks. The core question addressed in this paper is whether blockchain technology will lead to innovation and transformation of governmental processes. To address this question we present a critical assessment of...