ISO_IEC_11889-1_2009.pdf

Reference numberISO/IEC 11889-1:2009(E)ISO/IEC 2009 INTERNATIONAL STANDARD ISO/IEC11889-1First edition2009-05-15Information technology Trusted Platform Module Part 1:Overview Technologies de linformation Module de plate-forme de confiance Partie 1:Aperu gnral ISO/IEC 11889-1:2009(E)PDF disclaimer This PDF file may contain embedded typefaces.In accordance with Adobes licensing policy,this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing.In downloading this file,parties accept therein the responsibility of not infringing Adobes licensing policy.The ISO Central Secretariat accepts no liability in this area.Adobe is a trademark of Adobe Systems Incorporated.Details of the software products used to create this PDF file can be found in the General Info relative to the file;the PDF-creation parameters were optimized for printing.Every care has been taken to ensure that the file is suitable for use by ISO member bodies.In the unlikely event that a problem relating to it is found,please inform the Central Secretariat at the address given below.COPYRIGHT PROTECTED DOCUMENT ISO/IEC 2009 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 photocopying 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 Published in Switzerland ii ISO/IEC 2009 All rights reserved ISO/IEC 11889-1:2009(E)ISO/IEC 2009 All rights reserved iii Table of Contents 1.Scope 1 2.Abbreviated Terms 1 3.The Trusted Platform 4 3.1 Trusted Platform Building Block 4 3.2 The Trust Boundary 4 3.3 Transitive Trust 4 3.3.1 Basic Trusted Platform features 5 3.4 Integrity Measurement 6 3.5 Integrity Reporting 7 4.The TPM 7 4.1 Cryptographic Algorithms Required with TPM 7 4.1.1 Algorithm Assumptions 8 4.2 Operating Systems Supported by TPM 8 4.3 Protected Capabilities 8 4.4 Trusted Platform Module components 8 4.5 Naming Conventions 10 4.6 Privacy Considerations 11 4.7 TPM Operational States 12 ISO/IEC 11889-1:2009(E)iv ISO/IEC 2009 All rights reserved Foreword 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 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 organizations,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 Directives,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 the national bodies casting a vote.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights.ISO and IEC shall not be held responsible for identifying any or all such patent rights.ISO/IEC 11889-1 was prepared by the Trusted Computing Group(TCG)and was adopted,under the PAS procedure,by Joint Technical Committee ISO/IEC JTC 1,Information technology,in parallel with its approval by national bodies of ISO and IEC.ISO/IEC 11889 consists of the following parts,under the general title Information technology Trusted Platform Module:Part 1:Overview Part 2:Design principles Part 3:Structures Part 4:Commands ISO/IEC 11889-1:2009(E)ISO/IEC 2009 All rights reserved v Introduction Designers of secure distributed systems,when considering the exchange of information between systems,must identify the endpoints of communication.The composition and makeup of the endpoint is as important to the overall ability of the system to serve as an authentication and attestation device of the system as is the communications protocol.Endpoints are minimally comprised of asymmetric keys,key storage and processing that protects protocol data items.Classic message exchange based on asymmetric cryptography suggests that messages intended for one and only one individual can be encrypted using a public key.Furthermore,the message can be protected from tampering by signing with the private key.Keys are communication endpoints and improperly managed keys can result in loss of