BS ISO IEC 7064-2003 Information technology - Security techniques - Check character systems《信息技术 保密技术 检验字符系统》.pdf
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1、BRITISH STANDARD BS ISO/IEC 7064:2003 Information technology Security techniques Check character systems ICS 35.040 BS ISO/IEC 7064:2003 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 21 March 2003 BSI 21 March 2003 ISBN 0 580 41440 X Nation
2、al foreword This British Standard reproduces verbatim ISO/IEC 7064:2003 and implements it as the UK national standard. It supersedes BS 6541:1985 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee IST/33, Security techniques, which has the responsibility
3、 to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards
4、 Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard doe
5、s not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European devel
6、opments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO/IEC title page, pages ii to v, a blank page, pages 1 to 13 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Am
7、endments issued since publication Amd. No. Date Comments Reference number ISO/IEC 7064:2003(E)INTERNATIONAL STANDARD ISO/IEC 7064 First edition 2003-02-15 Information technology Security techniques Check character systems Technologies de linformation Techniques de scurit Systmes de caractres de cont
8、rle BSISO/IEC7064:2003BSISO/IEC7064:2003iiISO/IEC 6074:0203()E ISO/IE002 C3 All rihgts erservde iiiContents 1Scope 1 2Termsanddefinitions 1 3Symbolsandnotation 2 4Typesofsystems 2 4.1 Pure systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 4.2 H
9、ybrid systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 5Complianceanddesignation 2 5.1 Strings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 5.2 Check character generating products . .
10、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 5.3 Checking products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 5.4 System designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 6Sp
11、ecificationofpuresystems 3 6.1 Formula . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6.2 Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 6.3 Check character position . . . . . .
12、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 7Computationalmethodsforpuresystemswithonecheckcharacter 4 7.1 Pure system recursive method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 7.1.1 Computation . . . . . . . . . . . . . . . . . .
13、. . . . . . . . . . . . . . . . . . . . . . . . . . 4 7.1.2 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 7.2 Pure system polynomial method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 7.2.1 Computation . . . .
14、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 7.2.2 Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 8Computationalmethodsforpuresystemswithtwocheckcharacters 6 8.1Computation6 8.2Exampleusingrecursivemethod.6
15、 8.3 Example using polynomial method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 8.4 Simplied procedure for ISO/IEC 7064, MOD 9710 . . . . . . . . . . . . . . . . . . . . . . . . . . 7 9Specificationforhybridsystems 7 9.1 Formula . . . . . . . . . . . . . . . . . . . .
16、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 9.2 Check character position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 10Computationalmethodforhybridsystems 8 10.1Hybridsystemrecursivemethod.8 10.1.1 Computation . . . . . . . . . . . . . .
17、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 10.1.2Example.8 Annex A (informative) Criteria for the selection of check character systems for applications . 10 Annex B (informative) Check character systems for other alphabets . 12 Bibliography 13 BSISO/IEC7064:2003iiiISO/IEC 6074:020
18、3()E vi ISO/IE002 C3 All rihgts erservdeForeword 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 o
19、f 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
20、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
21、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
22、 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 7064 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommi
23、ttee SC 27, IT Security techniques. This first edition of ISO/IEC 7064 cancels and replaces ISO 7064:1983, which has been technically revised. Note, however, that implementations which comply with ISO 7064:1983 will be compliant with ISO/IEC 7064:2003. BSISO/IEC7064:2003ivISO/IEC 6074:0203()E ISO/IE
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