Cryptocurrencies have emerged as important financial software systems. They rely on a
secure distributed ledger data structure; mining is an integral part of such systems. Mining …

While SHA-2 is a ubiquitous cryptographic hashing primitive, its role in emerging application
domains, eg blockchains or trusted IoT components, has made the acceleration of SHA-2 …

Designers of RFID security protocols can choose between a wide variety of cryptographic
algorithms. However, when implementing these algorithms on RFID tags fierce constraints …

Bitcoin network functions on cryptographic technology and thrives on mining, an incentivized
technique to generate new bitcoins. In this paper, we describe the Bitcoin system's …

Hash functions play an important role in modern cryptography. This paper investigates
optimisation techniques that have recently been proposed in the literature. A new VLSI …

The secure hash algorithm 2 (SHA-2) family, including the SHA-224/256/384/512 hash
functions, is widely adopted in many modern domains, ranging from Internet of Things …

This paper proposes a set of new techniques to improve the implementation of the SHA-2
hashing algorithm. These techniques consist mostly in operation rescheduling and …

This article investigates how choosing a different hash function might affect the overall
performance of a blockchain. We focus on the selection of hash function for Ethereum and …

This paper presents a new set of techniques for hardware implementations of secure hash
algorithm (SHA) hash functions. These techniques consist mostly in operation rescheduling …

This work reports an efficient and compact FPGA processor for the SHA-256 algorithm. The
novel processor architecture is based on a custom datapath that exploits the reusing of …