> These suggest to me that the hash comparison is going to happen inside the Secure Enclave - give it the encrypted database and the NeuralHash of an image, it

> These suggest to me that the hash comparison is going to happen inside the Secure Enclave - give it the encrypted database and the NeuralHash of an image, it gives you back a Security Voucher to upload. My understanding is that the hash comparison, or at any rate the counting of matches, is done in the cloud then. The way the crypto is set up is that the server has no access to the security envelope and its contents (and, after E2EE in the future, to any images) unless the number of matches exceeds the threshold.