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  PHC 
Open Source and information security mailing list archives
Hash Suite for Android: free password hash cracker in your pocket
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Sun, 20 Jul 2014 17:25:40 -0700
From:	Dwayne Litzenberger <>
To:	Theodore Ts'o <>,
	Christoph Hellwig <>,,,,
Subject: Re: [PATCH, RFC] random: introduce getrandom(2) system call

On Thu, Jul 17, 2014 at 01:01:16PM -0400, Theodore Ts'o wrote:
>The getrandom(2) system call is a superset of getentropy(2).  When we
>add the support for this into glibc, it won't be terribly difficult
>nor annoying to drop the following in alongside the standard support
>needed for any new system call:
>int getentropy(void *buf, size_t buflen)
>	int	ret;
>	ret = getentropy(buf, buflen, 0);
>	return (ret > 0) ? 0 : ret;
>The reason for the additional flags is that I'm trying to solve more
>problems than just getentropy()'s raison d'etre.  The discussion of
>this is in the commit description; let me know if there bits that I
>could make clearer.

This could still return predictable bytes during early boot, though, 

Dwayne C. Litzenberger <>
 OpenPGP: 19E1 1FE8 B3CF F273 ED17  4A24 928C EC13 39C2 5CF7
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists