1、BSI Standards PublicationBS ISO/IEC 11694-5:2014Identification cards Opticalmemory cards Linearrecording methodPart 5: Data format for informationinterchange for applications using ISO/IEC11694-4BS ISO/IEC 11694-5:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation o
2、f ISO/IEC 11694-5:2014. It supersedes BS ISO/IEC 11694-5:2006 which iswithdrawn.The UK participation in its preparation was entrusted to Technical Committee IST/17, Cards and personal identification.A list of organizations represented on this committee can be obtained on request to its secretary.Thi
3、s publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2014.Published by BSI Standards Limited 2014ISBN 978 0 580 78150 6 ICS 35.240.15 Compliance with a British Standard cannot confer
4、 immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2014.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dIdentification cards Optical memory cards Linear recording method Part
5、 5: Data format for information interchange for applications using ISO/IEC 11694-4Cartes didentification Cartes mmoire optique Mthode denregistrement linaire Partie 5: Format de donnes pour lchange dinformations pour les applications utilisant lISO/IEC 11694-4 ISO/IEC 2014INTERNATIONAL STANDARDISO/I
6、EC 11694-5Second edition 2014-11-01Reference number ISO/IEC 11694-5:2014(E)BS ISO/IEC 11694-5:2014ISO/IEC 11694-5:2014(E)ii ISO/IEC 2014 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO/IEC 2014All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utili
7、zed otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright
8、 officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO/IEC 11694-5:2014ISO/IEC 11694-5:2014(E) ISO/IEC 2014 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope .12 Normative references 1
9、3 Terms and definitions .14 General structure .34.1 Tags . 44.2 The TLV stream . 74.3 Guidelines for assigning data elements to data items . 85 Directory structure 85.1 Directory sectors . 86 Data structure 126.1 Normal layout . 126.2 Alternate layout . 14Bibliography .15BS ISO/IEC 11694-5:2014ISO/I
10、EC 11694-5:2014(E)ForewordISO (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 Standar
11、ds 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 IE
12、C, 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.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular th
13、e different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility that some of the elements of this docu
14、ment may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see ww
15、w.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to t
16、he WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/IEC JTC1, Information technology, Subcommittee SC 17, Cards and personal identification.This second edition cancels and replaces th
17、e first edition (ISO/IEC 11694-5:2006), which has been technically revised.ISO/IEC 11694 consists of the following parts, under the general title Identification cards Optical memory cards Linear recording method : Part 1: Physical characteristics Part 2: Dimensions and location of the accessible opt
18、ical area Part 3: Optical properties and characteristics Part 4: Logical data structures Part 5: Data format for information interchange for applications using ISO/IEC 11694-4 Part 6: Use of biometrics on an optical memory cardiv ISO/IEC 2014 All rights reservedBS ISO/IEC 11694-5:2014ISO/IEC 11694-5
19、:2014(E)IntroductionThis part of ISO/IEC 11694 is one of a series of International Standards defining the parameters for optical memory cards and the use of such cards for the storage and interchange of digital data.This part of ISO/IEC 11694 is specific to optical memory cards using the linear reco
20、rding method. Characteristics which apply to other specific recording methods shall be found in separate International Standards.This part of ISO/IEC 11694 defines a logical structure to facilitate the interchange of data written to optical memory cards using the linear recording method.All numbers
21、in this part of ISO/IEC 11694 are written in decimal notation unless otherwise specified.All multi-byte numbers in this part of ISO/IEC 11694 are placed in their respective data structures and written to the media in “little-endian” format. This format puts the least significant byte of the number f
22、irst, followed by the more significant byte(s).All examples that show hexadecimal values corresponding to displayed characters use the ASCII character set. Characters written to cards according to this specification can use any desired character set, as long as the character set is specified in the
23、corresponding tag document. ISO/IEC 2014 All rights reserved vBS ISO/IEC 11694-5:2014ISO/IEC 11694-5:2014(E)BS ISO/IEC 11694-5:2014Identification cards Optical memory cards Linear recording method Part 5: Data format for information interchange for applications using ISO/IEC 11694-41 ScopeThis part
24、of ISO/IEC 11694 defines the data format for optical memory cards necessary to allow compatibility and interchange between systems using the linear recording method.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable f
25、or its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO/IEC 11694-4, Identification cards Optical memory cards Linear recording method Part 4: Logical data structures3 Terms
26、 and definitionsFor the purposes of this document, the terms and definitions given in ISO/IEC 11694-4 and the following apply.3.1applicationcomputer application program which writes to or makes use of the data read from an optical memory cardNote 1 to entry: This also applies more generally to a sys
27、tem that makes use of the card or the way the card is used.3.2data elementset of data bytes that is only useful in its entiretyEXAMPLE A persons surname or a JPEG file containing a single image.3.3data filea stream of bytes which is referenced by a single entry in the cards directoryNote 1 to entry:
28、 A data file can contain either a single data item (associated with a single tag) or a TLV stream having multiple data items.3.4data itemdata element or well-defined set of data elements that is associated with a single tag, which defines its meaning and layoutINTERNATIONAL STANDARD ISO/IEC 11694-5:
29、2014(E) ISO/IEC 2014 All rights reserved 1BS ISO/IEC 11694-5:2014ISO/IEC 11694-5:2014(E)3.5data sectorsector (as defined in ISO/IEC 11694-4) that contains all or part of a data file3.6directorystructure used to keep track of the presence and location of data on a random access storage media3.7direct
30、ory sectorsector on a random access media that contains directory information3.8layoutspecific sequence of bytes required in the data itemNote 1 to entry: This is in contrast to the meaning of the data item, which describes its use.EXAMPLE A card can contain two JPEG “files”. The layout of these ite
31、ms is the same, but the meaning can be different. One can be a portrait of the card holder, and the other can be an image of the card holders fingerprint, for example.3.9little-endian formatformat for defining the order of bytes in a multi-byte numberNote 1 to entry: This format is sometimes referre
32、d to as “Intel” format. The first byte of a multi-byte number contains the least significant byte of the number, and the last byte contains the most significant byte of the number.EXAMPLE If the decimal number 8765 (which is expressed as 223D in hexadecimal notation) is written out as a 16-bit quant
33、ity in little-endian format, the series of bytes containing the number is: 3D followed by 22. So the least significant byte (3D hex) is written out followed by the most significant byte (22 hex).3.10logical tracksequence of bytes, the length of which is the data capacity of a track, which make up pa
34、rt of a fileEXAMPLE A file can have a length that exceeds the capacity of a single track on the card. In such a case, the file shall be broken up into several pieces, each of which shall be written to a different track on the card. The reading application shall put the pieces of the file back togeth
35、er after it has read all the tracks containing the file. Each of these “pieces” is considered a “logical track”, with the first piece containing the beginning of the file being counted as logical track zero. Most of the time, the logical tracks will be written to succeeding physical tracks, so if a
36、file is written starting at physical track 8 for 2 tracks, logical track 0 occupies track 8 and logical track 1 occupies track 9. In some cases, a given logical track can be written twice, so it can be that the reading application finds logical track 0 at both physical tracks 8 and 9 and finds logic
37、al track 1 at physical track 10. In this case, the reader shall ignore the second copy of logical track 0 and paste the contents of tracks 8 and 10 together to form the original file.3.11meaninguse to which the data item can be putEXAMPLE The data associated with a given tag can have the meaning tha
38、t it is a colour photograph of the head of the person to whom the card was issued.3.12physical tracktrack on the optical memory stripe that is referenced by a physical track address as defined in ISO/IEC 11694-42 ISO/IEC 2014 All rights reservedBS ISO/IEC 11694-5:2014ISO/IEC 11694-5:2014(E)3.13publi
39、c zonepart of the optical stripe on the card that is accessible to all optical card drivesNote 1 to entry: Optical memory cards can also contain a private zone that is accessible to only a specific set of card drives operated by the card issuer.3.14tagunique unsigned 16-bit number in the range 0 thr
40、ough 65535 (inclusive) that is used to identify a data item stored on the cardNote 1 to entry: A single set of tags applies to any and all data stored in the pubic zone of an optical memory card that conforms to this part of ISO/IEC 11694.3.15tag documentdocument that completely describes both the m
41、eaning and the layout of one or more data items associated with a tag or a numerically contiguous group of tagsNote 1 to entry: This document is created by the body which wishes to issue or update cards and is submitted to the tag issuing body for publication. An organization that desires to create
42、or read and use the described data item(s) shall be able to do so by reading the tag document and any references incorporated in the tag document.3.16tag issuing bodyorganization responsible for issuing tags to organizations which wish to issue or update cards complying with this part of ISO/IEC 116
43、94Note 1 to entry: The tag issuing body maintains a list of tags to ensure that each tag corresponds to a unique type of data item and publishes tag documents which describe the meaning and layout of the data associated with each tag. It is proposed that HID Global be the tag issuing body for ISO/IE
44、C 11694-5.3.17tag, length, value (TLV) data streamdata storage structure that involves placing multiple data items in serial fashion on a storage medium and keeping track of these items through a tagNote 1 to entry: The tag identifies the meaning and layout of the data, followed by the length of the
45、 data in bytes, followed by the value, which is the data itself. The last byte of the “value” part is then optionally followed by another TLV structure within the stream. The stream is terminated by a “tag” of zero. Although such a data stream is a serial entity, a random access technology can conta
46、in any number of such streams, and parts of a TLV stream can be read independently if desired. Each TLV data stream is contained in a file that is referenced by a single entry in the cards directory.3.18trackphysical location on an optical memory card that can contain one or more sectorsNote 1 to en
47、try: This term is the same as the term “physical track” and is defined in ISO/IEC 11694-4.3.19unique stampunique 12-byte value that is created based on the time of writing and the unique serial number of the optical memory card writing deviceNote 1 to entry: This stamp is used to identify two separa
48、te sectors as containing parts of the same data file.4 General structureThe purpose of this part of ISO/IEC 11694 is to allow for the interchange of data on optical cards by specifying both the directory structure on the card and the method of identifying individual data ISO/IEC 2014 All rights rese
49、rved 3BS ISO/IEC 11694-5:2014ISO/IEC 11694-5:2014(E)elements that are written to the card. The directory provides a mapping between the identity of a data element and that elements location on the card. Tags are used to identify data elements both in their meaning and in the layout of the referenced data.This document defines the starting location of the directory on the card. It does not define the location of the data. The entity that writes to the card selects the location of the data, writes the data to th
