This paper provides either security proofs or attacks for a large number of identity-based
identification and signature schemes defined either explicitly or implicitly in existing …

In an attribute-based signature (ABS), users sign messages with any predicate of their
attributes issued from an attribute authority. Under this notion, a signature attests not to the …

Unlike wired networks, vehicular ad hoc networks (VANETs) are subject to a broader range
of attacks due to its wireless broadcast nature. One of the potential cryptographic solutions to …

We construct new multiparty signature schemes that allow multiple signers to sequentially
produce a compact, fixed-length signature simultaneously attesting to the message (s) they …

We propose a new notion called hidden attribute-based signature, which is inspired by the
recent developments in attribute-based cryptosystem. With this technique, users are able to …

The conditional privacy-preserving authentication (CPPA) protocol has applications in the
construction of secure Internet of Vehicles (IoV) due to its capability to achieve both privacy …

Multi-signatures allow multiple signers to jointly authenticate a message using a single
compact signature. Many applications however require the public keys of the signers to be …

Motivated by the recent advances on internet of things (IoT) and the importance that location
information has on many application scenarios, this article offers references to theoretical …

We propose a variant of the “bonsai tree” signature scheme, a lattice-based existentially
unforgeable signature scheme in the standard model. Our construction offers the same …

As a recently proposed public key primitive, attribute-based encryption (ABE)(including
Ciphertext-policy ABE (CP-ABE) and Key-policy ABE (KP-ABE)) is a highly promising tool for …