We propose a secure multiparty signing protocol for the BBS+ signature scheme; in other
words, an anonymous credential scheme with threshold issuance. We prove that due to the …

Self-sovereign identity is a digital identity paradigm that allows users and organizations to
manage digital identity in a decentralized fashion without any central authority controlling …

Attribute-based encryption (ABE) is a generalization of public-key encryption that enables
fine-grained access control to encrypted data. In (ciphertext-policy) ABE, a central trusted …

Wireless broadcast transmission enables Inter-vehicle or Vehicle-to-Vehicle (V2V)
communication among nearby vehicles. This communication supports latency-critical …

Equivalence class signatures (EQS; Asiacrypt'14), sign vectors of elements from a bilinear
group. Anyone can transform a signature on a vector to a signature on any multiple of that …

Attribute-based encryption (ABE) enables fine-grained access control on encrypted data and
has a large number of practical applications. This paper presents FABEO: faster pairing …

There have been notable improvements in discrete logarithm computations in finite fields
since 2015 and the introduction of the Tower Number Field Sieve algorithm (TNFS) for …

Measuring efficiency is difficult. In the last decades, several works have contributed in the
quest to successfully determine and compare the efficiency of pairing-based attribute-based …

We propose the first constructions of anonymous tokens with decentralized issuance.
Namely, we consider a dynamic set of signers/issuers; a user can obtain a token from any …

Wireless broadcast transmission technology enables vehicles to communicate with other
nearby vehicles and with nearby fixed equipment. Vehicles and equipment within …