1、 INCITS/ISO/IEC 19785-4:2010 2010 ISO/IEC 19785-4:2010 Information technology Common Biometric Exchange Formats Framework Part 4: Security block format specifications Reaffirmed as INCITS/ISO/IEC 19785-4:2010 R2015INCITS/ISO/IEC 19785-4:2010 2010 PDF disclaimer This PDF file may contain embedded typ
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5、Technology Standards) as an American National Standard. Date of ANSI Approval: 12/6/2010 Published by American National Standards Institute, 25 West 43rd Street, New York, New York 10036 Copyright 2010 by Information Technology Industry Council (ITI). All rights reserved. These materials are subject
6、 to copyright claims of International Standardization Organization (ISO), International Electrotechnical Commission (IEC), American National Standards Institute (ANSI), and Information Technology Industry Council (ITI). Not for resale. No part of this publication may be reproduced in any form, inclu
7、ding an electronic retrieval system, without the prior written permission of ITI. All requests pertaining to this standard should be submitted to ITI, 1250 Eye Street NW, Washington, DC 20005. Printed in the United States of America ii ITIC 2010 All rights reserved ISO/IEC 19785-4:2010(E) ISO/IEC 20
8、10 All rights reserved iiiContents Page Foreword iv Introduction.v 1 Scope1 2 Normative references1 3 Terms and definitions .2 3.1 Terms defined in ISO/IEC 19785-1 .2 3.2 Terms defined in ISO/IEC 19784-1 .2 3.3 Terms defined in ISO/IEC 24761 2 3.4 Terms defined in ISO/IEC 9798-6 .2 4 Abbreviated ter
9、ms .2 4.1 Abbreviated terms defined in ISO/IEC 19785-1 2 4.2 Abbreviated terms defined in ISO/IEC 247612 4.3 Abbreviated terms defined in ISO/IEC 9798-6 2 4.4 Abbreviated terms defined in RFC 3852 .3 5 Security block format: general purpose .3 5.1 Security block format owner 3 5.2 Security block for
10、mat owner identifier3 5.3 Security block format name .3 5.4 Security block format identifier .3 5.5 ASN.1 object identifier for this security block format .3 5.6 Domain of use4 5.7 Version identifier .4 5.8 Format specification and conformance statement 4 5.9 Encoding of abstract values 10 6 Securit
11、y block format: signature only.11 6.1 Security block format owner 11 6.2 Security block format owner identifier11 6.3 Security block format name .11 6.4 Security block format identifier .11 6.5 ASN.1 object identifier for this security block format .11 6.6 Domain of use12 6.7 Version identifier .12
12、6.8 Format specification and conformance statement 12 Annex A (normative) ASN.1 module for security block format13 Annex B (informative) Difference from types defined in RFC 5911 .15 Bibliography18 ISO/IEC 19785-4:2010(E) iv ISO/IEC 2010 All rights reservedForeword ISO (the International Organizatio
13、n 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 respectiv
14、e 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 t
15、echnology, 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 Stan
16、dards 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
17、subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. ISO/IEC 19785-4 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 37, Biometrics. ISO/IEC 19785 consists of the following parts, under the
18、 general title Information technology Common Biometric Exchange Formats Framework: Part 1: Data element specification Part 2: Procedures for the operation of the Biometric Registration Authority Part 3: Patron format specifications Part 4: Security block format specifications ISO/IEC 19785-4:2010(E)
19、 ISO/IEC 2010 All rights reserved vIntroduction Biometric verification and identification are important techniques for the authentication and/or identification of an individual. Biometric data used in biometric verification and identification has to be from a trusted source with no interference in t
20、ransmission (integrity). It might or might not be necessary for it to be kept secret (encryption) depending on security policy. This part of ISO/IEC 19785 provides for both integrity and encryption of the biometric data. To ensure interoperability, the Common Biometric Exchange Formats Framework (CB
21、EFF) was specified in ISO/IEC 19785-1 to associate meta-data with one or more Biometric Data Blocks (BDBs). In ISO/IEC 19785-1, the options for integrity and encryption, and the concept of a security block (SB) to contain security information related to these options are defined, but the format and
22、detailed content of security blocks (SB formats) are not specified. There are several steps in the chain, starting from a CBEFF patron format. First, the patron format can determine that the abstract value of the CBEFF data element CBEFF_BDB_encryption_options is fixed as NO ENCRYPTION and that the
23、CBEFF data element CBEFF_BIR_integrity_options is fixed as NO INTEGRITY. In this case, there is no need for a security block to be required in that patron format. If the patron format requires the inclusion of a security block in some circumstances, it can fix it as one of the security blocks define
24、d in this part of ISO/IEC 19785 (or as some other security block), or can include the CBEFF data elements CBEFF_SB_format_owner and CBEFF_SB_format_type to identify one of these or some other security block format. Besides the security block formats defined in this part of ISO/IEC 19785, there will
25、be many possible CBEFF security block formats meeting different needs. For example, a security block format is specified for the ILO seafarers profile in ISO/IEC 24713-3. The security block format specified in Clause 5 is designed to be as general as possible. The security block format specified in
26、Clause 6 is designed to provide a basic security provision and supports integrity only. This part of ISO/IEC 19785 specifies two security block formats. The first security block specifies a general-purpose security block format with optional elements for encryption, and for integrity, using RFC 3852
27、 Cryptographic Message Syntax (CMS), with certain modifications to EnvelopedData, EncryptedData, SignedData, and AuthenticatedData, to meet the needs and requirements in expressing the security of biometric information in conformance with CBEFF. The second is named signature-only security block form
28、at, which is also defined using RFC 3852. The general-purpose security block format specified in this part of ISO/IEC 19785 also contains optional Authentication Context for Biometrics (ACBio) instances specified in ISO/IEC 24761. ACBio also uses the RFC 3852 Cryptographic Message Syntax scheme. The
29、 inclusion of ACBio instances enables the security levels of the systems producing the authenticated biometric to be determined. The optional use of ACBio instances is an important part of the provision of a telebiometric authentication infrastructure (TAI) 3. INTERNATIONAL STANDARD ISO/IEC 19785-4:
30、2010(E) ISO/IEC 2010 All rights reserved 1Information technology Common Biometric Exchange Formats Framework Part 4: Security block format specifications 1 Scope This part of ISO/IEC 19785 specifies security block formats (see ISO/IEC 19785-1) registered in accordance with ISO/IEC 19785-2 as formats
31、 defined by the CBEFF biometric organization ISO/IEC JTC 1/SC 37, and specifies their registered security block format identifiers. NOTE The security block format identifier is recorded in the standard biometric header (SBH) of a patron format (or defined by that patron format as the only available
32、security block format). The general-purpose security block format provides for specification of whether the biometric data block (BDB) is encrypted or the SBH and BDB have integrity applied (or both), and can include ACBio instances (see ISO/IEC 24761). This security block provides all necessary sec
33、urity parameters, including those used for encryption or integrity. It does not restrict the algorithms and parameters used for encryption or integrity, but provides for the recording of such algorithms and parameter values. It is a matter for profiling to determine, for a particular application are
34、a, what algorithms and parameter ranges can be used by the generator of a security block, and hence what algorithms and parameter ranges have to be supported by the user of a security block. This is out of the scope of this part of ISO/IEC 19785. The second security block is more limited, but simple
35、r (and in particular cannot contain ACBio instances, and does not support encryption of the BDB). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest
36、 edition of the referenced document (including any amendments) applies. ISO/IEC 8824 (all parts) | ITU-T Rec. X.680683, Information technology Abstract Syntax Notation One (ASN.1) ISO/IEC 8825 (all parts) | ITU-T Rec. X.690693, Information technology ASN.1 encoding rules ISO/IEC 9798-6, Information
37、technology Security techniques Entity authentication Part 6: Mechanisms using manual data transfer ISO/IEC 19784-1, Information technology Biometric application programming interface Part 1: BioAPI specification ISO/IEC 19785-1, Information technology Common Biometric Exchange Formats Framework Part
38、 1: Data element specification ISO/IEC 19785-4:2010(E) 2 ISO/IEC 2010 All rights reservedISO/IEC 24761, Information technology Security techniques Authentication context for biometrics RFC 3852, Cryptographic Message Syntax (CMS), July 2004 RFC 5911, New ASN.1 Modules for Cryptographic Message Synta
39、x (CMS) and S-MIME, June 2010 3 Terms and definitions 3.1 Terms defined in ISO/IEC 19785-1 For the purposes of this document, the following terms defined in ISO/IEC 19785-1 apply: biometric, biometrics, biometric data block (BDB), biometric information record (BIR), CBEFF biometric organization, sec
40、urity block (SB), security block format, security block format identifier, security block format owner, standard biometric header (SBH). 3.2 Terms defined in ISO/IEC 19784-1 For the purposes of this document, the following term defined in ISO/IEC 19784-1 applies: BioAPI Unit. 3.3 Terms defined in IS
41、O/IEC 24761 For the purposes of this document, the following terms defined in ISO/IEC 24761 apply: ACBio instance, authentication context for biometrics (ACBio), biometric processing unit (BPU). 3.4 Terms defined in ISO/IEC 9798-6 For the purposes of this document, the following term defined in ISO/
42、IEC 9798-6 applies: message authentication code. 4 Abbreviated terms 4.1 Abbreviated terms defined in ISO/IEC 19785-1 For the purposes of this document, the following abbreviated terms in ISO/IEC 19785-1 apply: BDB, BIR, CBEFF, SB, SBH. 4.2 Abbreviated terms defined in ISO/IEC 24761 For the purposes
43、 of this document, the following abbreviated terms in ISO/IEC 24761 apply: ACBio, BPU. 4.3 Abbreviated terms defined in ISO/IEC 9798-6 For the purposes of this document, the following abbreviated term in ISO/IEC 9798-6 applies: MAC. ISO/IEC 19785-4:2010(E) ISO/IEC 2010 All rights reserved 34.4 Abbre
44、viated terms defined in RFC 3852 For the purposes of this document, the following abbreviated term in RFC 3852 applies: CRL. 5 Security block format: general purpose 5.1 Security block format owner ISO/IEC JTC 1/SC 37 5.2 Security block format owner identifier 257 (0101Hex). This identifier has been
45、 assigned in accordance with ISO/IEC 19785-2 to ISO/IEC JTC 1/SC 37 as a CBEFF biometric organization. 5.3 Security block format name ISO/IEC JTC 1/SC 37 CBEFF general-purpose security block format 5.4 Security block format identifier 1 (0001 Hex). This has been registered in accordance with ISO/IEC
46、 19785-2 when DER encodings (see ISO/IEC 8825-1) are applied. 2 (0002 Hex). This has been registered in accordance with ISO/IEC 19785-2 when canonical PER encodings (see ISO/IEC 8825-2) are applied. 3 (0003 Hex). This has been registered in accordance with ISO/IEC 19785-2 when canonical XER encoding
47、s (see ISO/IEC 8825-3) are applied. 5.5 ASN.1 object identifier for this security block format 5.5.1 The case of DER encodings iso registration-authority cbeff(19785) organizations(0) jtc-sc37 (257) sb-formats(3) general-purpose(0) der-encoding(1) or, in XML value notation, 1.1.19785.0.257.3.0.1 5.5
48、.2 The case of canonical PER encodings iso registration-authority cbeff(19785) organizations(0) jtc-sc37 (257) sb-formats(3) general-purpose(0) per-encoding(2) or, in XML value notation, 1.1.19785.0.257.3.0.2 ISO/IEC 19785-4:2010(E) 4 ISO/IEC 2010 All rights reserved5.5.3 The case of canonical XER e
49、ncodings iso registration-authority cbeff(19785) organizations(0) jtc-sc37 (257) sb-formats(3) general-purpose(0) xer-encoding(3) or, in XML value notation, 1.1.19785.0.257.3.0.3 5.6 Domain of use The general-purpose security block is designed for applications that require integrity and/or encryption, and optionally inclusion of ACBio instances. 5.7 Version identifier This security block format specifica
