* How do you manage the key for encrypting IDs? Injected to app environment via envvar? Just embedded in source code? I ask this because I'm curious as to how much "care" I should be putting in into managing the secret material if I were to adopt this scheme.
* Is the ID encrypted using AEAD scheme (e.g. AES-GCM)? Or does the plain AES suffice? I assume that the size of IDs would never exceed the block size of AES, but again, I'm not a cryptographer so not sure if it's safe to do so.
* How do you manage the key for encrypting IDs? Injected to app environment via envvar? Just embedded in source code? I ask this because I'm curious as to how much "care" I should be putting in into managing the secret material if I were to adopt this scheme.
* Is the ID encrypted using AEAD scheme (e.g. AES-GCM)? Or does the plain AES suffice? I assume that the size of IDs would never exceed the block size of AES, but again, I'm not a cryptographer so not sure if it's safe to do so.