Text file encryption
Text file encryption
- Subject: Text file encryption
- From: Jeremy Dronfield <email@hidden>
- Date: Sat, 14 Sep 2002 17:58:07 +0100
Does anyone know of a good secure Cocoa method of encrypting text files?
I'd like my app to be able to encrypt/decrypt collections of rtf files.
At the moment I'm using a pretty rudimentary approach (which isn't
encryption at all really), in which I take my collections of attributed
strings and archive them as data objects. These are then put in a
dictionary which is saved into a plist file. Good enough to thwart your
average Joe User, but wouldn't fool anyone with any serious technical
know-how longer than about ten seconds.
I'd like a *proper* encryption method which would bar any attempt (short
of cracking the reader app) to copy encrypted resource files out of the
app bundle and read them. What I'm after, ideally, is a roll-my-ownable
C or obj-C technique which I can write into my application rather than a
piece of proprietary encryption software. Any advice?
-Jeremy
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