As in other threads, Homomorphic, ZK, etc Cryptoprivacy research are advancing. More papers, libraries, demo applications, etc being published. Google, Microsoft, and others recently dropped code in the game. https://en.wikipedia.org/wiki/Zero-knowledge_proof https://en.wikipedia.org/wiki/Homomorphic_encryption https://homomorphicencryption.org/ https://en.wikipedia.org/wiki/Post-quantum_cryptography https://github.com/google/fully-homomorphic-encryption https://www.microsoft.com/en-us/research/project/homomorphic-encryption/ https://www.microsoft.com/en-us/research/project/microsoft-seal https://www.microsoft.com/en-us/research/blog/password-monitor-safeguarding-... https://github.com/microsoft/electionguard https://github.com/Microsoft/SEAL https://palisade-crypto.org/ https://github.com/cpeikert/Lol https://github.com/vernamlab/cuHE https://github.com/lca1/lattigo https://github.com/homenc/HElib https://www.intel.com/content/www/us/en/newsroom/resources/press-kits-labs-d... https://www.ibm.com/security/services/homomorphic-encryption https://www.ibm.com/blogs/research/2020/06/ibm-releases-fully-homomorphic-en... https://developer.ibm.com/solutions/security/blogs/new-open-source-security-... https://github.com/IBM/fhe-toolkit-linux