On 22 May '08, at 3:12 AM, Ruotger Skupin wrote:
I have an application which uses Core Data and handles sensitive information. Is there an easy way to encrypt the on-disk persistent store provided I'm reasonably fluent in libCrypto and do not want to use an encrypted disk image?
With the sqlite store I think you'd be limited to encrypting the contents of individual column values (with the side effect that you'd no longer be able to query or sort on those values.) If there's some individual property you want to encrypt, like the contents of a message, then you could make the persistent property be "encryptedContents" and declare a transient "contents" property that does the en/decryption based on the persistent value.
I've used sqlite a fair bit and I don't remember seeing any hooks that would let you intercept the raw file reads and writes it makes, which is what would be required to encrypt the entire database.
With the XML store you could probably override some methods (as the previous reply points out) to encrypt the entire file as it's being read or written.
—Jens
smime.p7s
Description: S/MIME cryptographic signature
_______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
