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[209.132.180.67]) by mx.google.com with ESMTP id d69si31077261pgc.451.2019.04.16.03.37.41; Tue, 16 Apr 2019 03:37:57 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=hygon.cn Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729153AbfDPKfT (ORCPT + 99 others); Tue, 16 Apr 2019 06:35:19 -0400 Received: from [110.188.70.11] ([110.188.70.11]:40646 "EHLO spam2.hygon.cn" rhost-flags-FAIL-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1727783AbfDPKfT (ORCPT ); Tue, 16 Apr 2019 06:35:19 -0400 Received: from MK-DB.hygon.cn ([172.23.18.60]) by spam2.hygon.cn with ESMTP id x3GAScAS069530; Tue, 16 Apr 2019 18:28:38 +0800 (GMT-8) (envelope-from fenghao@hygon.cn) Received: from cncheex02.Hygon.cn ([172.23.18.12]) by MK-DB.hygon.cn with ESMTP id x3GASTDC034698; Tue, 16 Apr 2019 18:28:29 +0800 (GMT-8) (envelope-from fenghao@hygon.cn) Received: from [172.30.20.134] (172.23.18.44) by cncheex02.Hygon.cn (172.23.18.12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1466.3; Tue, 16 Apr 2019 18:28:34 +0800 Subject: Re: [PATCH 0/6] Add Hygon SEV support To: Paolo Bonzini , Pascal Van Leeuwen , "'Tom Lendacky '" , "'Gary Hook '" , "'Herbert Xu '" , "' David S. Miller '" , "'Janakarajan Natarajan '" , "'Joerg Roedel '" , =?UTF-8?B?JyBSYWRpbSBLcsSNbcOhxZkgJw==?= , "'Thomas Gleixner '" , "'Ingo Molnar '" , "'Borislav Petkov '" , "' H. Peter Anvin '" CC: "'Zhaohui Du '" , "'Zhiwei Ying '" , "'Wen Pu '" , "x86@kernel.org" , "linux-crypto@vger.kernel.org" , "kvm@vger.kernel.org" , "linux-kernel@vger.kernel.org" References: <1555329868-17895-1-git-send-email-fenghao@hygon.cn> <3a1288ab-8e18-5421-05b4-4f4ef2fc531c@redhat.com> <985108b1-6d51-4458-48de-c5b96c5f14f9@redhat.com> From: Hao Feng Message-ID: <992c3a3f-8eb2-5286-c9f7-7940fc5ccf55@hygon.cn> Date: Tue, 16 Apr 2019 18:28:33 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <985108b1-6d51-4458-48de-c5b96c5f14f9@redhat.com> Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [172.23.18.44] X-ClientProxiedBy: cncheex01.Hygon.cn (172.23.18.10) To cncheex02.Hygon.cn (172.23.18.12) X-MAIL: spam2.hygon.cn x3GAScAS069530 X-DNSRBL: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 4/16/19 4:09 PM, Paolo Bonzini wrote: > Useful does not mean secure, does it? PKZIP encryption was certainly > useful back in the day, but it was not secure. > Thanks for the comments, quite understand the concern about security because it is indeed so important. Many people may not hear about SM2, so it is natural to doubt its security. Actually SM2 is not just China standard, it is also ISO/IEC standard, this fact should give us some confidence about its security. You can get more information about SM2 from below ISO/IEC specification. https://www.iso.org/obp/ui/#iso:std:iso-iec:14888:-3:ed-4:v1:en -- Thanks Harry