A recent line of works–initiated by Gordon, Katz and Vaikuntanathan (Asiacrypt 2010)–gave
lattice-based constructions allowing users to authenticate while remaining hidden in a …

Ring signatures and group signatures are prominent cryptographic primitives offering a
combination of privacy and authentication. They enable individual users to anonymously …

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 …

Lattice-based group signature is an active research topic in recent years. Since the
pioneering work by Gordon et al.(Asiacrypt 2010), eight other schemes have been …

Group signatures are a central cryptographic primitive which allows users to sign messages
while hiding their identity within a crowd of group members. In the standard model (without …

Group signatures are a central tool in privacy-enhancing cryptography, which allow
members of a group to anonymously produce signatures on behalf of the group …

Group signatures present a compromise between the traditional goals of digital signatures
and the need for signer privacy, allowing for the creation of unforgeable signatures in the …

In a group signature scheme, users can anonymously sign messages on behalf of the group
they belong to, yet it is possible to trace the signer when needed. Since the first proposal of …

Sanitizable signatures are a variant of signatures which allow a single, and signer-defined,
sanitizer to modify signed messages in a controlled way without invalidating the respective …

Group signatures and their variants have been widely used in privacy-sensitive scenarios
such as anonymous authentication and attestation. In this paper, we present a new post …