Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 21 Aug 2002 23:37:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 21 Aug 2002 23:37:42 -0400 Received: from abraham.CS.Berkeley.EDU ([128.32.37.170]:47884 "EHLO mx2.cypherpunks.ca") by vger.kernel.org with ESMTP id ; Wed, 21 Aug 2002 23:37:41 -0400 To: linux-kernel@vger.kernel.org Path: not-for-mail From: daw@mozart.cs.berkeley.edu (David Wagner) Newsgroups: isaac.lists.linux-kernel Subject: Re: [PATCH] (0/4) Entropy accounting fixes Date: 22 Aug 2002 03:25:26 GMT Organization: University of California, Berkeley Distribution: isaac Message-ID: References: <20020818021522.GA21643@waste.org> NNTP-Posting-Host: mozart.cs.berkeley.edu X-Trace: abraham.cs.berkeley.edu 1029986725 14197 128.32.153.211 (22 Aug 2002 03:25:26 GMT) X-Complaints-To: news@abraham.cs.berkeley.edu NNTP-Posting-Date: 22 Aug 2002 03:25:26 GMT X-Newsreader: trn 4.0-test74 (May 26, 2000) Originator: daw@mozart.cs.berkeley.edu (David Wagner) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1056 Lines: 15 Linus Torvalds wrote: >On the other hand, if you are _too_ anal you won't consider _anything_ >"truly random", and /dev/random becomes practically useless on things that >don't have special randomness hardware. Well, /dev/random never was the right interface for most applications, and this is arguably the real source of the problem. For most applications, what you want is something like /dev/urandom (possibly a version that doesn't deplete all the true randomness available for /dev/random). Very few applications need true randomness; for most, cryptographic-quality pseudorandomness should suffice. 1 bit of true randomness a minute should be more than sufficient for most real applications. (That means you can catastrophically reseed with 128 bits once every two hours, which sounds good to me.) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/