We present SCALLOP: SCALable isogeny action based on Oriented supersingular curves
with Prime conductor, a new group action based on isogenies of supersingular curves …

Blind signatures, proposed by Chaum (CRYPTO'82), are interactive protocols between a
signer and a user, where a user can obtain a signature without revealing the message to be …

In vehicular ad hoc networks (VANETs), the broadcasting of fake announcement messages
by malicious vehicles can potentially misguide nearby vehicles. Ensuring the trustworthiness …

In this paper, we construct the first provably-secure isogeny-based (partially) blind signature
scheme. While at a high level the scheme resembles the Schnorr blind signature, our work …

In this paper, we construct the first password authenticated key exchange (PAKE) scheme
from isogenies with Universal Composable (UC) security in the random oracle model …

Isogeny computations in CSIDH (Asiacrypt 2018) are described using a commutative group
G acting on the set of supersingular elliptic curves. The commutativity property gives CSIDH …

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 …

Generating supersingular elliptic curves of unknown endomorphism ring has been a
problem vexing isogeny-based cryptographers for several years. A recent development has …

Ring signatures are significant cryptographic primitives used for anonymous authentication
due to their anonymity and spontaneity. However, in some scenarios, they may offer …

In this work, we introduce two post-quantum Verifiable Random Function (VRF)
constructions based on abelian group actions and isogeny group actions with a twist. The …