All of lore.kernel.org
 help / color / mirror / Atom feed
From: peter garner <peter@petergarner.net>
To: wireguard@lists.zx2c4.com
Subject: Using OneRNG hardware RNG can I get wireguard to use /dev/random
Date: Tue, 21 Jul 2020 15:58:26 +0100	[thread overview]
Message-ID: <20200721155826.29f29036.peter@petergarner.net> (raw)

Hi List, 

Platform: Raspberry Pi4B, Raspbian Buster 10.  This device dedicated to
wireguard. uname -a: Linux wireguard 4.19.118-v7l+ #1311 SMP Mon Apr 27
14:26:42 BST 2020 armv7l GNU/Linux. wg-quick is dated May 22 08:11
 
I've used my OneRNG v3.0 external device to recreate my SSH moduli and
am now looking to recreate my wireguard keys.

According to the Wireguard docs it uses /dev/urandom:
https://gist.github.com​/rmoriz​/58f1768218a4fbc4b318615bfb85111d
 
fd = open("/dev/urandom", O_RDONLY);
	if (fd < 0)
		return fd;
	ret = read(fd, out, len);
	close(fd);
 
The OneRNG utilises /dev/random though - is there any way I can get
wireguard to use /dev/random instead (without recompiling) ?


             reply	other threads:[~2020-07-24  8:27 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-21 14:58 peter garner [this message]
2020-07-24  8:32 ` Using OneRNG hardware RNG can I get wireguard to use /dev/random Jeffrey Walton
2020-07-24  8:58   ` Ipad@petergarner.net
2020-07-24  8:55 ` Jason A. Donenfeld

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200721155826.29f29036.peter@petergarner.net \
    --to=peter@petergarner.net \
    --cc=wireguard@lists.zx2c4.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.