Lattice Group Signatures, Revisited
Olivier Sanders
Group signatures are one of the central privacy-preserving authentication mechanisms, offering an interesting trade-off between accountability and anonymity. Their versatility has led to many applications and even standardization at ISO/IEC. Unfortunately, they lack so far efficient quantum-safe constructions, despite several works implementing the seminal framework by Bellare, Micciancio and Warinschi (BMW) in the lattice setting.
In this work, we propose an alternative lattice-based constructi
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