1、Information technology Secu rity techniques Message Authentication Codes (MACs) Part 2: Mechanisms using a dedicated hash-functionCAN/CSA-ISO/IEC 9797-2:13(ISO/IEC 9797-2:2011, IDT)National Standard of CanadaNOT FOR RESALE. / PUBLICATION NON DESTINE LA REVENTE.Legal Notice for StandardsCanadian Stan
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20、ting as “CSA Group”TMA trade-mark of the Canadian Standards Association, operating as “CSA Group”National Standard of CanadaPublished in January 2013 by CSA GroupA not-for-profit private sector organization5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N61-800-463-6727 416-747-4044V
21、isit our Online Store at shop.csa.caApproved byStandards Council of CanadaCAN/CSA-ISO/IEC 9797-2:13Information technology Security techniques Message Authentication Codes (MACs) Part 2: Mechanisms using a dedicated hash-functionPrepared by InternationalOrganizationforStandardization/ International E
22、lectrotechnical CommissionReviewed byCAN/CSA-ISO/IEC 9797-2:13Information technology Security techniques Message Authentication Codes (MACs) Part 2:Mechanisms using a dedicated hash-functionCSA/4 2013 CSA Group January 2013CAN/CSA-ISO/IEC 9797-2:13Information technology Security techniques Message A
23、uthentication Codes (MACs) Part 2: Mechanisms using a dedicated hash-functionCSA PrefaceStandards development within the Information Technology sector is harmonized with international standards development. Through the CSA Technical Committee on Information Technology (TCIT), Canadians serve as the
24、Canadian Advisory Committee (CAC) on ISO/IEC Joint Technical Committee 1 on Information Technology (ISO/IEC JTC1) for the Standards Council of Canada (SCC), the ISO member body for Canada and sponsor of the Canadian National Committee of the IEC. Also, as a member of the International Telecommunicat
25、ion Union (ITU), Canada participates in the International Telegraph and Telephone Consultative Committee (ITU-T).This Standard supersedes CAN/CSA-ISO/IEC 9797-2-04 (adoption of ISO/IEC 9797-2:2002).At the time of publication, ISO/IEC 9797-2:2011 is available from ISO and IEC in English only. CSA Gro
26、up will publish the French version when it becomes available from ISO and IEC.This International Standard was reviewed by the TCIT under the jurisdiction of the Strategic Steering Committee on Information Technology and deemed acceptable for use in Canada. From time to time, ISO/IEC may publish adde
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30、ds and related publications, visit our Online Store at shop.csa.ca or call toll-free 1-800-463-6727 or 416-747-4044.This Standard is subject to periodic review, and suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send the followi
31、ng information to inquiriescsagroup.org and include “Proposal for change” in the subject line:(a) Standard designation (number);(b) relevant clause, table, and/or figure number;(c) wording of the proposed change; and(d) rationale for the change.Reference numberISO/IEC 9797-2:2011(E)ISO/IEC 2011INTER
32、NATIONAL STANDARD ISO/IEC9797-2Second edition2011-05-01Corrected version2011-06-15Information technology Security techniques Message Authentication Codes (MACs) Part 2: Mechanisms using a dedicated hash-function Technologies de linformation Techniques de scurit Codes dauthentification de message (MA
33、C) Partie 2: Mcanismes utilisant une fonction de hachage ddie ISO/IEC 9797-2:2011(E) COPYRIGHT PROTECTED DOCUMENT ISO/IEC 2011 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including p
34、hotocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org ii ISO/IEC 20
35、11 All rights reservedCAN/CSA-ISO/IEC 9797-2:13ISO/IEC 9797-2:2011(E) ISO/IEC 2011 All rights reserved iiiContents Page Foreword iv Introduction.v 1 Scope1 2 Normative references1 3 Terms and definitions .2 4 Symbols and notation.4 5 Requirements.5 6 MAC Algorithm 1 .6 6.1 Description of MAC Algorit
36、hm 1 7 6.1.1 Step 1 (key expansion)7 6.1.2 Step 2 (modification of the constants and the IV)7 6.1.3 Step 3 (hashing operation) .7 6.1.4 Step 4 (output transformation).8 6.1.5 Step 5 (truncation).8 6.2 Efficiency8 6.3 Computation of the constants8 6.3.1 Dedicated Hash-Function 1 (RIPEMD-160) .9 6.3.2
37、 Dedicated Hash-Function 2 (RIPEMD-128) .9 6.3.3 Dedicated Hash-Function 3 (SHA-1)10 6.3.4 Dedicated Hash-Function 4 (SHA-256)10 6.3.5 Dedicated Hash-Function 5 (SHA-512)10 6.3.6 Dedicated Hash-Function 6 (SHA-384)11 6.3.7 Dedicated Hash-Function 8 (SHA-224)11 7 MAC Algorithm 2 .12 7.1 Description o
38、f MAC Algorithm 2 12 7.1.1 Step 1 (key expansion)12 7.1.2 Step 2 (hashing operation) .12 7.1.3 Step 3 (output transformation).12 7.1.4 Step 4 (truncation).13 7.2 Efficiency13 8 MAC Algorithm 3 .13 8.1 Description of MAC Algorithm 3 13 8.1.1 Step 1 (key expansion)13 8.1.2 Step 2 (modification of the
39、constants and the IV)14 8.1.3 Step 3 (padding) 14 8.1.4 Step 4 (application of the round-function)14 8.1.5 Step 5 (truncation).15 8.2 Efficiency15 Annex A (normative) ASN.1 Module .16 Annex B (informative) Examples .17 Annex C (informative) A security analysis of the MAC algorithms37 Bibliography39
40、CAN/CSA-ISO/IEC 9797-2:13ISO/IEC 9797-2:2011(E) iv ISO/IEC 2011 All rights reservedForeword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of
41、ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizati
42、ons, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules given in the ISO/IEC Dire
43、ctives, Part 2. The main task of the joint technical committee is to prepare International Standards. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of th
44、e national bodies casting a vote. ISO/IEC 9797-2 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 27, IT Security techniques. This second edition cancels and replaces the first edition (ISO/IEC 9797-2:2002), which has been technically revised by includ
45、ing MAC algorithms based on Dedicated Hash-Functions 4 7 of ISO/IEC 10118-3:2004 and Dedicated Hash-Function 8 of ISO/IEC 10118-3/Amd.1:2006. ISO/IEC 9797 consists of the following parts, under the general title Information technology Security techniques Message Authentication Codes (MACs): Part 1:
46、Mechanisms using a block cipher Part 2: Mechanisms using a dedicated hash-function Part 3: Mechanisms using a universal hash-function Further parts may follow. This corrected version of ISO/IEC 9797-2:2011 incorporates corrections to subclauses 3.14, 6.3, 6.3.5 and 6.3.6. CAN/CSA-ISO/IEC 9797-2:13IS
47、O/IEC 9797-2:2011(E) ISO/IEC 2011 All rights reserved vIntroduction The International Organization for Standardization (ISO) and International Electrotechnical Commission (IEC) draw attention to the fact that it is claimed that compliance with this document may involve the use of a patent concerning
48、 MAC Algorithm 1 (MDx-MAC) given in Clause 6. ISO and IEC take no position concerning the evidence, validity and scope of this patent right. The holder of this patent right has assured ISO and IEC that he is willing to negotiate licenses under reasonable and non-discriminatory terms and conditions w
49、ith applicants throughout the world. In this respect, the statement of the holder of this patent right is registered with ISO and IEC. Information may be obtained from: Entrust Technologies, Technology Licensing Dept., 1000 Innovation Drive, Ottawa, Ontario, Canada K2K 3E7. Attention is drawn to the possibility that some of
