It's ether that you don't understand what I'm doing, or I don't understand that. Here is the full story.
I am using Apple's SFAuthorizationView to find out if the user is an administrator. If they are an admin, I allow them to modify the settings, when they save I am saving the settings in AES with 2 keys, 1 randomly generated and saved in AES encrypted by the first key and the other in the binary. Although nobody has cracked it yet, I can't have the first key in the open. Things I can't do. I can't ask for a password to use to encrypt, as I won't be able to find out what the settings are. I can't store it in the keychain as a password as if I do it'll be open if the kid/teenager knows the password to the user he/her is in. Things I can do. I can store it in the keychain as a key if someone could send me a link to an example on how to do that. I can encode the key in a way that only if you have the source code, you can find out, like make my own md5 algorithm and only if you know that algorithm, you can get the actual key. But to do that, I'll need to find a algorithm in cocoa that is public domain so I can modify it. Hope this clears things up, Mr. Gecko On Dec 30, 2009, at 3:33 PM, Ken Thomases wrote: > On Dec 30, 2009, at 11:59 AM, Mr. Gecko wrote: > >> This is basically for Parental Controls, I know I could ask for a password >> at first, but then any kid could grab a copy and set their own password. >> What I'm doing is I'm asking for them to authenticate with Mac OS X, and >> then once they are authenticated, I'm allowing them to set settings that are >> encrypted with a key in AES. > > You might consider using Authorization Services for this, instead of rolling > your own. See: > > http://developer.apple.com/mac/library/technotes/tn2002/tn2095.html > > It uses a parental-control mechanism as an example of one of the things that > Authorization Services can be used for. > > Cheers, > Ken >
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