linux-kernel - Re: Updated scalable urandom patchkit

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 14 Oct 2015 04:15:13 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	George Spelvin <linux@...izon.com>
Cc:	ahferroin7@...il.com, andi@...stfloor.org, jepler@...ythonic.net,
	linux-kernel@...r.kernel.org, linux@...musvillemoes.dk,
	tytso@....edu
Subject: Re: Updated scalable urandom patchkit

> Off hand, do you know how large a read each operation is?  I want to
> reduce mixback from once per 10 bytes to once per read, and the size
> ratio will give me some idea of how large an improvement to expect.

My test reads 64 bytes using the syscall.

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/