From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 5196F8DD for ; Wed, 12 Aug 2015 22:46:46 +0000 (UTC) Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 58EBD201 for ; Wed, 12 Aug 2015 22:46:45 +0000 (UTC) From: David Howells In-Reply-To: References: <20436.1438090619@warthog.procyon.org.uk> <1438096213.5441.147.camel@HansenPartnership.com> <1438097471.5441.152.camel@HansenPartnership.com> <1438099839.5441.165.camel@HansenPartnership.com> <1438100102.26913.183.camel@infradead.org> <30361.1438101879@warthog.procyon.org.uk> <1438111168.26913.189.camel@infradead.org> <1438121016.5441.233.camel@HansenPartnership.com> <16035.1439324695@warthog.procyon.org.uk> <11239.1439403720@warthog.procyon.org.uk> <1439405139.3100.147.camel@infradead.org> To: Andy Lutomirski MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <13274.1439419600.1@warthog.procyon.org.uk> Date: Wed, 12 Aug 2015 23:46:40 +0100 Message-ID: <13275.1439419600@warthog.procyon.org.uk> Cc: James Bottomley , Luis Rodriguez , "ksummit-discuss@lists.linuxfoundation.org" , Kyle McMartin Subject: Re: [Ksummit-discuss] [TECH TOPIC] Firmware signing List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Andy Lutomirski wrote: > Once we're talking real, modern public keys, there's no point in even > hashing them. A good cryptosystem will have 32-byte public keys, and > a sufficiently strong hash will be 32 bytes. And likely non-compliant with various security certifications. David