the 'keychain overview' on the apple dev site makes mention of
'secure
notes' in the keychain. but there's absolutely no mention within the
documentation of how to use or set up one of these mystery notes.
does
anybody have any idea how to set up and use one of these items? it
seems
like a theoretically quite easy way to keep a file protected from the
average user without having to tackle on-the-fly file encryption.
Don't know if there is an API for this, but the User Interface for
it is in the KeyChain Access app, under the File menu - 'New Secure
Note...'
I don't think there's any particular special API for doing notes. I
can't remember exactly how they're done, but in any case, you
probably don't need them. Especially if you're talking about files -
I'm pretty sure the Keychain API wasn't designed with file storage in
mind (nor was the CDSA, which underlies it all). I think the
suggested way of storing files securely is to encrypt them on disk,
and store the encryption keys in a keychain. Encrypted disk image
are one such user-driven method of doing so.
If you're not satisfied with that answer, check the apple-cdsa
mailing list. I believe this question has come up there before;
check the archives.
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