ZKP is integrated in Google Wallet and has been running in production for a few months. We (Google) released the ZKP library as open source last year (this is

ZKP is integrated in Google Wallet and has been running in production for a few months. We (Google) released the ZKP library as open source last year (this is the library used in production). Announcement: https://blog.google/innovation-and-ai/technology/safety-security/opening-up-zero-knowledge-proof-technology-to-promote-privacy-in-age-assurance/ https://blog.google/innovation-and-ai/technology/safety-secu... Library: https://github.com/google/longfellow-zk https://github.com/google/longfellow-zk Paper: https://eprint.iacr.org/2024/2010 https://eprint.iacr.org/2024/2010 Afterwards, folks from ISRG produced an independent implementation https://github.com/abetterinternet/zk-cred-longfellow https://github.com/abetterinternet/zk-cred-longfellow with our blessing and occasional help. I don't know if the authors would call it "production ready" yet, but it is at least code complete, fast enough, and interoperable with ours.