Interledger Approaches

Siris, Vasilios A.; Nikander, Pekka; Voulgaris, Spyros; Fotiou, Nikos; Lagutin, Dmitrij; Polyzos, George C.

doi:10.1109/access.2019.2926880

Cited by 75 publications

(33 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, ensuring the interoperability among such deployments is crucial to ensure large-scale blockchain scenarios. For that purpose, the use of interledger approaches [251] could help to mitigate potential interoperability concerns through a common platform, in which different blockchains could maintain their privacy preferences. In this direction, the use of interledger techniques (e.g., sidechains [252]) needs to be analyzed in the coming years as a tool to increase interoperability, as well as to reduce performance issues.…”

Section: Future Research Directionsmentioning

confidence: 99%

Privacy-Preserving Solutions for Blockchain: Review and Challenges

et al. 2019

View full text Add to dashboard Cite

Blockchains offer a decentralized, immutable and verifiable ledger that can record transactions of digital assets, provoking a radical change in several innovative scenarios, such as smart cities, eHealth or eGovernment. However, blockchains are subject to different scalability, security and potential privacy issues, such as transaction linkability, crypto-keys management (e.g. recovery), on-chain data privacy, or compliance with privacy regulations (e.g. GDPR). To deal with these challenges, novel privacy-preserving solutions for blockchain based on crypto-privacy techniques are emerging to empower users with mechanisms to become anonymous and take control of their personal data during their digital transactions of any kind in the ledger, following a Self-Sovereign Identity (SSI) model. In this sense, this paper performs a systematic review of the current state of the art on privacy-preserving research solutions and mechanisms in blockchain, as well as the main associated privacy challenges in this promising and disrupting technology. The survey covers privacy techniques in public and permissionless blockchains, e.g. Bitcoin and Ethereum, as well as privacy-preserving research proposals and solutions in permissioned and private blockchains. Diverse blockchain scenarios are analyzed, encompassing, eGovernment, eHealth, cryptocurrencies, Smart cities, and Cooperative ITS.

show abstract

Section: Future Research Directionsmentioning

confidence: 99%

Privacy-Preserving Solutions for Blockchain: Review and Challenges

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Blum and Bocek have proposed a blockchain specifically designed for light clients [31]. If public blockchain interaction is required, another approach is to use multiple blockchains, and segregate constrained devices into the more IoT-friendly blockchain, straddling the two blockchains using interledger techniques [32].…”

Section: Related Workmentioning

confidence: 99%

Security Properties of Light Clients on the Ethereum Blockchain

Paavolainen

Carr

2020

IEEE Access

View full text Add to dashboard Cite

Ethereum is a decentralized blockchain, known as being the second most popular public blockchain after Bitcoin. Since Ethereum is decentralised the canonical state is determined by the Ethereum network participants via a consensus mechanism without a centralized coordinator. The network participants are required to evaluate every transaction starting from the genesis block, which requires a large amount of network, computing, and storage resources. This is impractical for many devices with either limited computing resources or intermittent network connectivity. To overcome this drawback Ethereum defines a light client protocol where the light client fetches the blockchain state from a node operating as a light protocol server. Light clients are unable to maintain blockchain state internally, and as a consequence can only perform partial validation on blocks. Thus they rely on the light server for full block validation and to provide the updated blockchain state. Light clients connect to multiple light servers to mitigate the risk of relying on a single potentially dishonest server. Ethereum light clients are known to suffer from a probabilistic security model, but they are widely assumed to be secure under normal operating conditions. In fact, the implicit security assumptions of light clients have not been formally characterised in the literature. We present and analyse the probabilistic security guarantees under three different adversarial scenarios. The results show that for any adversary that is able to manipulate the network, the security assurances provided by the light protocol are severely impacted, and in some cases entirely lost. These results clearly demonstrate that the assumption of normal operating conditions is insufficient to justify the security assumptions of light clients. Our work also provides insight to the security of light clients under different security parameters, allowing light client implementers to more accurately understand the potential security trade-offs.

show abstract

“…From a more technological standpoint, new networks are aimed to enable interoperability (see the different approaches adopted, presented in Siris et al 26 ) and increase network speed. However, the essential features of blockchain networks should be observed since Blockchain 3.0 incorporates features like immutability and transparency and no need for intermediaries, obtained by the blockchain trustless decentralization to other systems, which are built on top of blockchain technology 25 .…”

Section: Blockchain Generationsmentioning

confidence: 99%

A critical review on blockchain assessment initiatives: A technology evolution viewpoint

Colomo‐Palacios

Sánchez‐Gordón

Aranda

2020

J Software Evolu Process

View full text Add to dashboard Cite

Blockchain is considered as a major emerging technology that is having an ever‐increasing spread both in industrial and academic contexts. As the usage of blockchain keeps increasing, a fourth generation of blockchain platforms is being proposed. Thus, applications of blockchain have evolved towards wider scopes than cryptocurrency and asset management. In this context, it is important for practitioners to have deep understanding of various blockchain assessment initiatives. Therefore, this work discusses blockchain assessment initiatives from a technology evolution viewpoint. Furthermore, a mapping was conducted to identify factors that impact blockchain initiatives, synthesize available evidence, and identify gaps between relevant approaches available in the literature. As a result, nine selected works were analyzed based on applicability, research approach, assessment process, blockchain adoption process, and blockchain waves. The findings can help practitioners to understand the main assessment factors that undermine blockchain implementations.

show abstract

Interledger Approaches

Cited by 75 publications

References 26 publications

Privacy-Preserving Solutions for Blockchain: Review and Challenges

Privacy-Preserving Solutions for Blockchain: Review and Challenges

Security Properties of Light Clients on the Ethereum Blockchain

A critical review on blockchain assessment initiatives: A technology evolution viewpoint

Contact Info

Product

Resources

About