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 …

This paper proposes spongent–a family of lightweight hash functions with hash sizes of 88
(for preimage resistance only), 128, 160, 224, and 256 bits based on a sponge construction …

This paper proposes novel robust and low-overhead physical unclonable function (PUF)
authentication and key exchange protocols that are resilient against reverse-engineering …

Virtualization has become a standard part of many computer systems. A key part of
virtualization is the all-powerful hypervisor which manages the physical platform and can …

The design of secure yet efficiently implementable cryptographic algorithms is a
fundamental problem of cryptography. Lately, lightweight cryptography--optimizing the …

Bitcoin is a “crypto currency”, a decentralized electronic payment scheme based on
cryptography. It implements a particular type of peer-to-peer payment system. Bitcoin …

The development of a low-cost high-performance secure hash algorithm (SHA)-256
accelerator has recently received extensive interest because SHA-256 is important in …

Abstract Internet-of-Things (IoT) applications often require constrained devices to be
deployed in the field for several years, even decades. Protection of these tiny motes is …

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 …

High-throughput and area-efficient designs of hash functions and corresponding
mechanisms for Message Authentication Codes (MACs) are in high demand due to new …