In recent years, crypto-currencies (a form of decentralised digital currencies) have been
quite popular as an alternative form of payments. They are underpinned by a breakthrough …

In recent years, blockchain technology has received unparalleled attention from academia,
industry, and governments all around the world. It is considered a technological …

The underlying fundaments of blockchain are cryptography and cryptographic concepts that
provide reliable and secure decentralized solutions. Although many recent papers study the …

This paper proposes a novel construction, called duplex, closely related to the sponge
construction, that accepts message blocks to be hashed and–at no extra cost–provides …

We study software performance of authenticated-encryption modes CCM, GCM, and OCB.
Across a variety of platforms, we find OCB to be substantially faster than either alternative …

Blockchain technology rapidly gained popularity based on its open and decentralized
operation. Consensus protocol is the core mechanism of a blockchain network that securely …

Performance in hardware has been demonstrated to be an important factor in the evaluation
of candidates for cryptographic standards. Up to now, no consensus exists on how such an …

This paper proposes a new lightweight 256-bit hash function Lesamnta-LW with claimed
security levels of at least 2 120 with respect to collision, preimage, and second preimage …

An increasing number of cryptographic primitives use operations such as addition modulo 2
n, multiplication by a constant and bitwise Boolean functions as a source of non-linearity. In …

One of the most basic properties expected from block ciphers and hash functions is passing
statistical randomness testing, as they are supposed to behave like random mappings …