From: bugzilla-daemon@kernel.org
To: linux-man@vger.kernel.org
Subject: [Bug 214885] random.{4,7} [man-pages 5.13] do not reflect changes to /dev/random semantics since kernel 5.6
Date: Thu, 25 May 2023 11:34:12 +0000 [thread overview]
Message-ID: <bug-214885-11311-OF0ptbiFet@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-214885-11311@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=214885
Mingye Wang (arthur200126@gmail.com) changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |arthur200126@gmail.com
--- Comment #1 from Mingye Wang (arthur200126@gmail.com) ---
Ha, can confirm. Was putting my nose through these things starting with
https://words.filippo.io/dispatches/linux-csprng/.
Things to change:
## random.7
* We should remove the concept of a "blocking pool".
* GRND_RANDOM is no longer a thing. Remove the two rows.
filippo also questions the wisdom of recommending people to roll their own
PRNG, now that the ChaCha stuff is much faster. I don't know.
filippo reports that 5.4 (commit
https://github.com/torvalds/linux/commit/50ee7529ec4500c88f8664560770a7a1b65db72b)
has some magic to get entropy from jitter. We should document this behavior so
people know blocking will not be that bad.
## random.4
Yep, that's gonna be painful. I recommend adding a sub section for "pre-5.6
behavior".
## getrandom.2
Removal of GRND_RANDOM shall be noted.
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next prev parent reply other threads:[~2023-05-25 11:36 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-30 16:42 [Bug 214885] New: random.{4,7} [man-pages 5.13] do not reflect changes to /dev/random semantics since kernel 5.6 bugzilla-daemon
2021-10-30 17:01 ` [Bug 214885] " bugzilla-daemon
2023-05-25 11:34 ` bugzilla-daemon [this message]
2023-05-25 12:36 ` bugzilla-daemon
2023-05-29 8:50 ` [PATCH] random.{4,7}, getrandom.2: Adapt to Linux 5.6 changes Mingye Wang
2023-05-31 22:20 ` Alejandro Colomar
2023-06-02 11:35 ` Mingye Wang
2023-06-05 3:13 ` Mingye Wang
2023-07-08 19:06 ` Alejandro Colomar
2024-03-25 12:44 ` [Bug 214885] random.{4,7} [man-pages 5.13] do not reflect changes to /dev/random semantics since kernel 5.6 bugzilla-daemon
2024-03-25 13:26 ` bugzilla-daemon
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