Re: Using NSValueTransformer for encryption

FROM : Michael Varlik
DATE : Fri Jan 11 07:45:18 2008

-------- Original-Nachricht --------
> Datum: Fri, 11 Jan 2008 11:38:11 +1030
> Von: Jonathon Mah <<email_removed>>
> An: Michael Varlik <M.<email_removed>>
> CC: <email_removed>
> Betreff: Re: Using NSValueTransformer for encryption


> Hi Michael,
>
> > I belive, that an advantage of this solution would be that there 
> > won't be any decrypted values in the memory footprint of the 
> > application as long as there are any values displayed.
>
>
> Why is this an advantage?
>
> Additionally, even if the values weren't cleartext in memory at any 
> given point, the encrypted values along with the decryption code and 
> key would be.
>

Hi Jonathon,

this would only be an advantage, if you remove the key as well after
it's been used. There's still a small time frame where the key is stored in memory - but this is the same with the unencrypted values.

Best regards,
Michael

>
>
> Jonathon Mah
> <email_removed>
>
>
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