In this episode of Zero Knowledge, Anna Rose and Nico interview Abhi Shelat and Matteo Frigo, engineers at Google, about the ID features in Google Wallet and the underlying ZK system, Anonymous Credentials for ECDSA. The discussion covers the user experience, technical details, and the challenges of implementing ZK for privacy, including the constraints of legacy cryptography, the need for post-quantum security, and the importance of efficient proof generation on mobile devices. They delve into the architecture of the Anonymous Credentials system, touching on topics such as parsing, circuit design, and the use of FFTs, and also address the complexities of credential revocation and standardization efforts.
