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Date: Thu, 19 Sep 2013 18:10:58 -0500
From: Tony Arcieri <>
To: "" <>
Subject: Re: [PHC] further limitation: not writing secret to memory

On Thu, Sep 19, 2013 at 1:45 PM, Larry Bugbee <> wrote:
> But while that or something else might lock on Linux, there might be no
> way to reliably lock on other platforms.  If that be the case, the
> algorithm is not really appropriate if one might need to re-host on a
> different platform later.

mlock is part of SUSv2:

Windows is the real problem here. It supports a proprietary API called
VirtualLock to accomplish the same thing:

On Thu, Sep 19, 2013 at 4:27 PM, Krisztián Pintér <>wrote:

> it also does not help on a virtual server

Well, on a virtual server you have no secrets from the hypervisor, and
other things to worry about like cross-VM sidechannels:

Tony Arcieri

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