Newsgroups: php.internals Path: news.php.net Xref: news.php.net php.internals:98257 Return-Path: Mailing-List: contact internals-help@lists.php.net; run by ezmlm Delivered-To: mailing list internals@lists.php.net Received: (qmail 14319 invoked from network); 8 Feb 2017 09:37:52 -0000 Received: from unknown (HELO lists.php.net) (127.0.0.1) by localhost with SMTP; 8 Feb 2017 09:37:52 -0000 Authentication-Results: pb1.pair.com header.from=yohgaki@ohgaki.net; sender-id=pass Authentication-Results: pb1.pair.com smtp.mail=yohgaki@ohgaki.net; spf=pass; sender-id=pass Received-SPF: pass (pb1.pair.com: domain ohgaki.net designates 180.42.98.130 as permitted sender) X-PHP-List-Original-Sender: yohgaki@ohgaki.net X-Host-Fingerprint: 180.42.98.130 ns1.es-i.jp Received: from [180.42.98.130] ([180.42.98.130:37042] helo=es-i.jp) by pb1.pair.com (ecelerity 2.1.1.9-wez r(12769M)) with ESMTP id C4/D0-33872-DE6EA985 for ; Wed, 08 Feb 2017 04:37:51 -0500 Received: (qmail 112937 invoked by uid 89); 8 Feb 2017 09:37:45 -0000 Received: from unknown (HELO mail-qk0-f173.google.com) (yohgaki@ohgaki.net@209.85.220.173) by 0 with ESMTPA; 8 Feb 2017 09:37:45 -0000 Received: by mail-qk0-f173.google.com with SMTP id s140so116305983qke.0 for ; Wed, 08 Feb 2017 01:37:45 -0800 (PST) X-Gm-Message-State: AMke39k27qTSr5JGtWBaZ9idVlOgcEXT0RV2CcZrggvnk+TIz3jwyLxuq4EZCZ2SFj/MNS1ZqrSnoq2VORllCg== X-Received: by 10.55.92.198 with SMTP id q189mr14393398qkb.86.1486546659980; Wed, 08 Feb 2017 01:37:39 -0800 (PST) MIME-Version: 1.0 Received: by 10.140.19.232 with HTTP; Wed, 8 Feb 2017 01:36:59 -0800 (PST) In-Reply-To: References: Date: Wed, 8 Feb 2017 18:36:59 +0900 X-Gmail-Original-Message-ID: Message-ID: To: Scott Arciszewski Cc: "internals@lists.php.net" , Andrey Andreev , Nikita Popov Content-Type: multipart/alternative; boundary=001a114e750e9c5fdd0548019dd4 Subject: Re: [PHP-DEV] hash_hkdf() signature From: yohgaki@ohgaki.net (Yasuo Ohgaki) --001a114e750e9c5fdd0548019dd4 Content-Type: text/plain; charset=UTF-8 Forgot to mention the most important. On Wed, Feb 8, 2017 at 6:16 PM, Yasuo Ohgaki wrote: > Is that enough of a downside to dismiss an argument for better security? > Maybe I suppose so. It is very clear that "salt" is the most important for derived key security, "info" is next, then "length". Regards, -- Yasuo Ohgaki yohgaki@ohgaki.net --001a114e750e9c5fdd0548019dd4--