Research Papers

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Anonymous Reputation Systems Achieving Full Dynamicity from Lattices

In this work, we revisit the Anonymous Reputation Systems presented by Blömer et al. in (FC’15).

Shorter Messages and Faster Post-Quantum Encryption with Round5 on Cortex M

Round5 is a Public Key Encryption and Key Encapsulation Mechanism (KEM) based on General Learning with Rounding (GLWR), a lattice problem. We implement Round5 on Cortex M4.

Attribute-Based Signatures for Unbounded Circuits in the ROM and Efficient Instantiations from Lattices

In this work, we affirmatively close the gap between ABS schemes based on bilinear maps and lattices by constructing the first lattice-based ABS scheme for unbounded circuits in the random oracle model.