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Date: Tue, 6 Jun 2017 21:18:15 +0200
From: "Jason A. Donenfeld" <>
To: David Howells <>
Cc:, Eric Biggers <>, 
	Herbert Xu <>, Kirill Marinushkin <>,,, "Theodore Ts'o" <>,, LKML <>
Subject: Re: [PATCH] security/keys: rewrite all of big_key crypto

On Tue, Jun 6, 2017 at 8:45 PM, David Howells <> wrote:
> Jason A. Donenfeld <> wrote:
>> Thank you! Perfect instructions, I'll play around with this and make
>> sure it works.
> Don't forget that it's bimodal.  You need to give it sufficient data to
> trigger storage in swappable space.

Somewhat incredibly, it works perfectly.

First I tried the instructions you noted, and things worked, both for
big files and small ones.

Then I modified the source to print to dmesg the data buffer and the
key before and after the encryption/decryption function. I verified
with a small python script that indeed standard aes-gcm is being used

Thus, pending Ted's approval of the new random API, this patch should
be ready for merging.


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