We construct a pairing based simulation-extractable SNARK (SE-SNARK) that consists of
only 3 group elements and has highly efficient verification. By formally linking SE-SNARKs to …

Data is becoming an indispensable production factor for the modern economy, matching or
exceeding in importance traditional factors such as land, infrastructure, labor and capital. As …

We construct an efficient dynamic group signature (or more generally an accountable ring
signature) from isogeny and lattice assumptions. Our group signature is based on a simple …

As we move into a new decade, the global world of Intelligent Infrastructure (II) services
integrated into the Internet of Things (IoT) are at the forefront of technological advancements …

Group signatures are a central cryptographic primitive that has received a considerable
amount of attention from the cryptographic community. They allow members of a group to …

Abstract Structure-preserving signatures (SPS) are a powerful building block for
cryptographic protocols. We introduce SPS on equivalence classes (SPS-EQ), which allow …

Anonymous attribute-based credentials (ABCs) are a powerful tool allowing users to
authenticate while maintaining privacy. When instantiated from structure-preserving …

Existing threshold signature schemes come in two flavors:(i) fully private, where the
signature reveals nothing about the set of signers that generated the signature, and (ii) …

Industrial Internet of Things (IIoT) is revolutionizing plenty of industrial applications by
utilizing large-scale smart devices in manufacturing and industrial processes. However, IIoT …

Traditional group signatures feature a single issuer who can add users to the group of
signers and a single opening authority who can reveal the identity of the group member who …