Saving App-Specific Docs
Luis
luis at anachreon.co.uk
Tue Sep 26 12:03:22 EDT 2006
It might be a case where it is an invisible file, or that there are two
plist files, one in root/Library and the other in User/Library.
Cheers,
Luis.
Trevor Hopkins wrote:
> Thanks for the tips. What I'm primarily looking for is a way to store
> registration key/trial expiration data in a way that is least visible to
> the user. For an OS X application, is there a way to store this type of
> data in its plist file?
>
> If I store the data in a text file, regardless of encoding mechanism,
> the user could potentially find the file and delete it, thereby starting
> the trial period for the application anew. I noticed in a couple of
> Cocoa shareware apps that I tried, that if I deleted their pList files
> in Preferences, it did not affect their trial periods, i.e., a 10-day
> trial that had been down to 8-days remained at 8-days even though I
> deleted its corresponding plist file. In incidences like these, where is
> that data stored that says how much time is left on a trial or that the
> copy has already been registered?
>
> Many thanks,
>
> Trevor Hopkins
> Exeter, UK
>
>
>> From: Richard Gaskin <ambassador at fourthworld.com>
>> Reply-To: How to use Revolution <use-revolution at lists.runrev.com>
>> To: How to use Revolution <use-revolution at lists.runrev.com>
>> Subject: Re: Saving App-Specific Docs
>> Date: Tue, 26 Sep 2006 07:56:07 -0700
>>
>> Trevor Hopkins wrote:
>>> From a Rev application, how does one go about creating and writing
>>> to/reading from a document that is only openable by the Rev app
>>> itself (i.e., not a text document that anyone can open). I can see
>>> how to write data to a text document but what about to another type
>>> of doc that not anyone can get into so easily?
>>
>> There are many good options for protecting data. In addition to the
>> other suggestions posted here, if your security needs are modest
>> there's a very lightweight but reasonably efficient and easy-to-use
>> encryption handler posted at RevJournal:
>>
>> <http://www.revjournal.com/tutorials/handy-handlers-005.html>
>>
>> Most more "industrial strength" encryption you might also consider
>> Rev's Blowfish implementation, included in the Studio and Enterprise
>> packages.
>>
>> --
>> Richard Gaskin
>> Managing Editor, revJournal
>> _______________________________________________________
>> Rev tips, tutorials and more: http://www.revJournal.com
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