Abstract DeFi, or Decentralized Finance, is based on a distributed ledger called blockchain
technology. Using blockchain, DeFi may customize the execution of predetermined …

Recently, the spotlight has been cast on smart healthcare by many researchers to provide
better facilities to patients. Improved services, such as reducing health hazards, monitoring …

Decentralized finance (DeFi) in Ethereum is a financial ecosystem built on the blockchain
that has locked over 200 billion USD until April 2022. All transaction information is …

The proliferation of consumer IoT products in our daily lives has raised the need for secure
device authentication and access control. Unfortunately, these resource-constrained devices …

Key management is an integral part of using distributed ledger technology (DLT). Previous
work has primarily focused on key management for single-user scenarios on Bitcoin. Over …

Self-sovereign identity (SSI) is a digital identity management model managed in a
decentralized manner. It allows identity owners to manage and store their digital identities in …

The broad topic of this thesis is the design and analysis of Bitcoin custody systems. Both the
technology and threat landscape are evolving constantly. Therefore, custody systems …

Cryptocurrency is defined as a decentralized digital peer-to-peer currency and is based on
blockchain technology, a type of electronic ledger that records transactions quickly, securely …

Abstract Central Bank Digital Currencies (CBDCs) have emerged as a pivotal innovation in
the financial landscape. However, a fundamental challenge arises when considering the …

The financial sector has suffered a groundbreaking transformation with the advent of
cryptocurrencies, shifting from centralised to decentralised schemes. Hardware wallets play …