From: Arnd Bergmann Subject: Re: [RFC][PATCH] Pseudo-random number generator Date: Thu, 7 Dec 2006 16:06:33 +0100 Message-ID: <200612071606.33951.arnd@arndb.de> References: <1164979155.5882.23.camel@bender> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Cc: linux-crypto , linux-kernel@vger.kernel.org Return-path: To: Jan Glauber In-Reply-To: <1164979155.5882.23.camel@bender> Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-crypto.vger.kernel.org On Friday 01 December 2006 14:19, Jan Glauber wrote: > I've chosen the char driver since it allows the user to decide which pseudo-random > numbers he wants to use. That means there is a new interface for the s390 > PRNG, called /dev/prandom. > > I would like to know if there are any objections, especially with the chosen device > name. This may be a stupid question, but what is it _good_ for? My understanding is that the crypt_s390_kmc() opcodes work in user mode as well as kernel mode, so you should not need a character device at all, but maybe just a small tool that spits prandom data to stdout. Arnd <><