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I am pretty sure Core Data does not have any encryption/decryption features. Is there a tutorial that shows how to "manually" encrypt/decrypt data in Core Data?

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Core Data has a binary attribute type that takes instances of NSData. Could you encrypt a file, put the encrypted data into an NSData object, and store it that way?

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I presume that your concerned with securing user data. That being the case, consider secure removal of the encrypted file (zeroing file data, then deleting): stackoverflow.com/questions/7547517/…

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