As an innovated and revolutionized technology, blockchain has been applied in many fields,
such as cryptocurrency, food traceability, identity management, or even market prediction …

Covert communication enables covert information transmission in an undetectable way to
prevent the exposure of communication behaviors. Blockchain-based covert communication …

Blockchains primarily enable credible accounting of digital events, eg, money transfers in
cryptocurrencies. However, beyond this original purpose, blockchains also irrevocably …

Bitcoin is an immutable permissionless blockchain system that has been extensively used
as a public bulletin board by many different applications that heavily relies on its …

Policy-based chameleon hash is a useful primitive for blockchain rewriting. It allows a party
to create a transaction associated with an access policy, while another party who possesses …

The immutability of blockchains is critical for cryptocurrencies, but an imperative need arises
for the redaction of on-chain data due to privacy-protecting laws like GPDR. Recently …

Since the introduction of Bitcoin in 2008, blockchain systems have seen an enormous
increase in adoption. By providing a persistent, distributed, and append-only ledger …

Policy-based chameleon hash (PCH) is a cryptographic building block which finds
increasing practical applications. Given a message and an access policy, for any chameleon …

It is feasible to deploy Docker containers in IoT (Internet of Things) devices because their
runtime overhead is almost zero. Default Docker installation does not verify an image …

Popular cryptocurrencies continue to face serious scalability issues due to their ever-
growing blockchains. Thus, modern blockchain designs began to prune old blocks and rely …