From: Daniel Kiper <dkiper@net-space.pl>
To: Gary Lin <glin@suse.com>
Cc: grub-devel@gnu.org,
Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>,
Glenn Washburn <development@efficientek.com>,
Michael Chang <mchang@suse.com>,
Steffen Winterfeldt <snwint@suse.com>
Subject: Re: [PATCH 0/2] Optimize PBKDF2
Date: Thu, 16 Oct 2025 20:02:00 +0200 [thread overview]
Message-ID: <20251016180200.xpfifmvc4phqwhbc@tomti.i.net-space.pl> (raw)
In-Reply-To: <20250814063242.21644-1-glin@suse.com>
On Thu, Aug 14, 2025 at 02:32:40PM +0800, Gary Lin via Grub-devel wrote:
> This patch series addresses performance issues in the PBKDF2
> implementation, which previously caused significant delays when
> unlocking encrypted partitions. The code has been optimized to eliminate
> redundant memory allocations and unnecessary hash operations.
>
> These changes result in a substantial improvement: in local testing, the
> disk unlocking time was reduced from 15 seconds to 4 seconds.
>
> Credit to Steffen Winterfeldt for providing a custom PBKDF2 implementation
> that helped identify these bottlenecks.
>
> Gary Lin (2):
> lib/crypto: Introduce new HMAC functions to reuse buffers
> lib/pbkdf2: Optimize PBKDF2 by reusing HMAC handle
For both patches Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>...
Daniel
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prev parent reply other threads:[~2025-10-16 18:02 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-14 6:32 [PATCH 0/2] Optimize PBKDF2 Gary Lin via Grub-devel
2025-08-14 6:32 ` [PATCH 1/2] lib/crypto: Introduce new HMAC functions to reuse buffers Gary Lin via Grub-devel
2025-08-14 6:32 ` [PATCH 2/2] lib/pbkdf2: Optimize PBKDF2 by reusing HMAC handle Gary Lin via Grub-devel
2025-08-14 8:32 ` [PATCH 0/2] Optimize PBKDF2 Gary Lin via Grub-devel
2025-10-16 18:02 ` Daniel Kiper [this message]
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