I have seen many questions regarding other types of encryption but I have yet to see one that answers whether or not core data encryption requires you to submit any extra documents when pushing an app to the app store.
I know that apple requires you to click yes to the encryption question even if using apple services for your encryption which is why I am asking what level of encryption is Core Data according to Bureau of Industry and Security.
Core Data as supplied by Apple does not use encryption so just using Core Data does not require any encryption check-box or documentation.
Core Data generally used a SQLite database backend and although there is encoding, that is not encryption in the same manner UTF-8 character encoding is not encryption. Encryption used a key to encrypt data and without the key the data can not be recovered (decrypted).