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  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:   Mon, 16 Jan 2017 19:52:04 +0100
From:   Denys Vlasenko <vda.linux@...glemail.com>
To:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "Theodore Ts'o" <tytso@....edu>,
        "H. Peter Anvin" <hpa@...ux.intel.com>,
        Denys Vlasenko <dvlasenk@...hat.com>
Subject: Re: random: /dev/random often returns short reads

> # while ./eat_dev_random; do ./eat_dev_random; done; ./eat_dev_random
> read of 32 returns 32
> read of 32 returns 32
> read of 32 returns 28
> read of 32 returns 24
>
> Just two few first requests worked, and then ouch...
>
> I think this is what happens here:
> we transfer 4 bytes of entrophy to /dev/random pool:


erm... 32 bytes, of course.

Powered by blists - more mailing lists