Zero knowledge proofs

CROSS — Leveraging AI ASICs for Homomorphic Encryption

CROSS — Leveraging AI ASICs for Homomorphic Encryption

The talk presents CROSS and Morph, two compiler frameworks that enable existing AI accelerators, like Google's TPUs, to efficiently execute cryptographic workloads. CROSS focuses on Homomorphic Encryption (HE) and Morph on Zero-Knowledge Proofs (ZKP), demonstrating how to transform high-precision modular arithmetic into low-precision matrix operations that TPUs excel at, thereby achieving state-of-the-art performance and energy efficiency without any hardware modifications.

Lattice-Based Accumulator and Application to Anonymous Credential Revocation

Lattice-Based Accumulator and Application to Anonymous Credential Revocation

Victor Youdom Kemmoe from Brown University presents a novel, communication-efficient cryptographic accumulator based on the Module-SIS assumption. This construction is designed for applications like anonymous credential revocation, where elements can be added without needing to update existing membership witnesses, a significant improvement over previous post-quantum schemes.

zk-promises: Anonymous Moderation, Reputation, & Blocking from Anonymous Credentials with Callbacks

zk-promises: Anonymous Moderation, Reputation, & Blocking from Anonymous Credentials with Callbacks

A novel framework called zk-promises is introduced, enabling stateful anonymous credentials with Turing-complete state machines and asynchronous callbacks. This allows for robust moderation, such as banning or reputation updates, for anonymous users without compromising their privacy, using zk-objects and zero-knowledge proofs to ensure state integrity.