Trusted Execution Environments (TEEs) have been widely used in many security-critical
applications. The popularity of TEEs derives from its high security and trustworthiness …

After the success of the Bitcoin blockchain, came several cryptocurrencies and blockchain
solutions in the last decade. Nonetheless, Blockchain-based systems still suffer from low …

Blockchain is a technology that has desirable features of decentralization, autonomy,
integrity, immutability, verification, fault-tolerance, anonymity, auditability, and transparency …

Blockchains have the potential to revolutionize markets and services. However, they
currently exhibit high latencies and fail to handle transaction loads comparable to those …

Central banks around the world are exploring and in some cases even piloting Central Bank
Digital Currencies (CBDCs). CBDCs promise to realize a broad range of new capabilities …

Sharding has been considered as a prominent approach to enhance the limited
performance of blockchain. However, most sharding systems leverage a non-cooperative …

As a decentralized distributed ledger, blockchain has developed rapidly since its birth and
has been highly valued by governments, academia, and industry. Start in the financial field …

As a decentralized, public, and digital ledger technology in Peer-to-Peer network,
blockchain has received much attention from various fields, including finance, healthcare …

The existing Bitcoin security research has mainly followed the security models in [22, 35],
which stipulate that an adversary controls some mining power in order to violate the …

Existing oblivious storage systems provide strong security by hiding access patterns, but do
not scale to sustain high throughput as they rely on a central point of coordination. To …