Re: Non-pageable app
Re: Non-pageable app
- Subject: Re: Non-pageable app
- From: Finlay Dobbie <email@hidden>
- Date: Sat, 4 Apr 2009 21:47:59 +0100
On Fri, Apr 3, 2009 at 11:57 PM, Rich Collyer <email@hidden> wrote:
> My primary interest is to ensure that the content of an NSSecureTextField
> and any times I extract the string from it, the memory is not paged out, or
> cached.
http://developer.apple.com/documentation/Darwin/Conceptual/KernelProgramming/security/security.html
says:
--
Indeed, many types of data, such as hashes, unencrypted versions of
sensitive data, and authentication tokens, should generally not be
written to disk due to the potential for abuse. This raises an
interesting problem. There is no good way to deal with this in user
space (unless a program is running as root).
--
-- Finlay
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