ANSI ISO IEC 8825-2-1998 Information technology ASN.1 encoding rules Specification of Packed Encoding Rules (PER) Adopted by INCITS Amendment 1 12 01 2000《信息技术.ASN.1编码规则 INCITS采用的包.pdf

《ANSI ISO IEC 8825-2-1998 Information technology ASN.1 encoding rules Specification of Packed Encoding Rules (PER) Adopted by INCITS Amendment 1 12 01 2000《信息技术.ASN.1编码规则 INCITS采用的包.pdf》由会员分享，可在线阅读，更多相关《ANSI ISO IEC 8825-2-1998 Information technology ASN.1 encoding rules Specification of Packed Encoding Rules (PER) Adopted by INCITS Amendment 1 12 01 2000《信息技术.ASN.1编码规则 INCITS采用的包.pdf（50页珍藏版）》请在麦多课文档分享上搜索。

1、Reference numberISO/IEC 8825-2:1998(E)ISO/IEC 1998INTERNATIONALSTANDARDISO/IEC8825-2Second edition1998-12-15Information technology ASN.1encoding rules: Specification of PackedEncoding Rules (PER)Technologies de linformation Rgles de codage ASN.1:Spcification des rgles de codage compact (PER)Adopted

2、by INCITS (InterNational Committee for Information Technology Standards) as an American National Standard.Date of ANSI Approval: 12/21/00Published by American National Standards Institute,25 West 43rd Street, New York, New York 10036Copyright 2002 by Information Technology Industry Council (ITI).All

3、 rights reserved.These materials are subject to copyright claims of International Standardization Organization (ISO), InternationalElectrotechnical Commission (IEC), American National Standards Institute (ANSI), and Information Technology Industry Council(ITI). Not for resale. No part of this public

4、ation may be reproduced in any form, including an electronic retrieval system, withoutthe 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 AmericaCopyright American National S

5、tandards Institute Provided by IHS under license with ANSINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ISO/IEC 8825-2:1998(E)PDF disclaimerThis PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewe

6、d but shall notbe edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading thisfile, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in thi

7、sarea.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 parameterswere optimized for printing. Every care has been taken to ensure that the file is suitable for use

8、by ISO member bodies. In the unlikely eventthat a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO/IEC 1998All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, ele

9、ctronicor mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member bodyin the country of the requester.ISO copyright officeCase postale 56 Gb7 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 734 10 79E-mail copyrightiso.ch

10、Web www.iso.chPublished by ISO in 1999Printed in Switzerlandii ISO/IEC 1998 All rights reservedCopyright American National Standards Institute Provided by IHS under license with ANSINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ISO/IEC 8825-2:1998(E) ISO/IEC 1998

11、 All rights reserved iii_ ,62 ,( _ ,62 ,( _,62 ,( _ ,62 ,( _ ,62 ,( _,62 ,( ( ,17(51$7,21$/ 67$1$5c44c54c50c18c44c40c38c3c27c27c21c24c16c21c3c29c3c20c28c28c24c3c11c40c12c44c55c56c16c55c3c53c72c70c17c3c59c17c25c28c20c3c11c20c28c28c24c3c40c12,78 7 5( _ ,62 ,( _ ,62 ,( _ ,62 ,( _ ,62 ,( _ ,62 ,( _ ,62

12、,( _ ,62 ,( _ ,62 ,( _ ,62 ,( _ ,62 ,( ( 3DLUHG 5HFRPPHQGDWLRQV _ ,QWHUQDWLRQDO 6WDQGDUGV HTXLYDOHQW LQ WHFKQLFDO FRQWHQW 6SHFLILFDWLRQ RI $EVWUDFW 6QWD 1RWDWLRQ 2QH $61 ,62 ,( _,62 ,( _,62 ,( _,62 ,( _,62 ,( ( 3DUDPHWHULDWLRQ RI $61 6SHFLILFDWLRQ7KLV 5HFRPPHQGDWLRQ _ ,QWHUQDWLRQDO 6WDQGDUG PDNHV XV

13、H RI WKH IROORZLQJ WHUPV GHILQHG LQ ,78 7 5HF ; _,62 ,( _,62 ,( ( (QFRGLQJ WKH FKRLFH WSH127( 7XWRULDO $ FKRLFH WSH LV HQFRGHG E HQFRGLQJ DQ LQGH VSHFLILQJ WKH FKRVHQ DOWHUQDWLYH 7KLV LV HQFRGHG DV IRU DFRQVWUDLQHG LQWHJHU XQOHVV WKH HWHQVLRQ PDUNHU LV SUHVHQW LQ WKH FKRLFH WSH LQ ZKLFK FDVH LW LV D

14、 QRUPDOO VPDOO QRQ QHJDWLYHZKROH QXPEHU DQG ZRXOG WKHUHIRUH WSLFDOO RFFXS D ILHG OHQJWK ELW ILHOG RI WKH PLQLPXP QXPEHU RI ELWV QHHGHG WR HQFRGH WKHLQGH $OWKRXJK LW FRXOG LQ SULQFLSOH EH DUELWUDULO ODUJH 7KLV LV IROORZHG E WKH HQFRGLQJ RI WKH FKRVHQ DOWHUQDWLYH ZLWKDOWHUQDWLYHV WKDW DUH HWHQVLRQ DGG

15、LWLRQV HQFRGHG DV LI WKH ZHUH WKH YDOXH RI DQ RSHQ WSH ILHOG :KHUH WKH FKRLFH KDV RQO RQHDOWHUQDWLYH WKHUH LV QR HQFRGLQJ IRU WKH LQGH (QFRGLQJ RI FKRLFH WSHV DUH QRW DIIHFWHG E 3(5 YLVLEOH FRQVWUDLQWV (DFK FRPSRQHQW RI D FKRLFH KDV DQ LQGH DVVRFLDWHG ZLWK LW ZKLFK KDV WKH YDOXH HUR IRU WKH ILUVW DO

16、WHUQDWLYH LQWKH URRW RI WKH FKRLFH WDNLQJ WKH DOWHUQDWLYHV LQ WKH FDQRQLFDO RUGHU VSHFLILHG LQ ,78 7 5HF ; _ ,62 ,( _ ,62 ,( ( E DQ LQQHU WSH FRQVWUDLQW LV QRW HPSORHG WR FRQVWUDLQ WKH VQWDHV DOWHUQDWLYH WR D VLQJOH YDOXH QRU WRFRQVWUDLQ LGHQWLILFDWLRQ WR WKH ILHG DOWHUQDWLYH LQ ZKLFK FDVH ERWK WKH

17、LGHQWLILFDWLRQ DQG GDWD YDOXH VKDOO EH HQFRGHG WKLV LV FDOOHG WKH JHQHUDO FDVH ,Q WKH SUHGHILQHG FDVH WKH HQFRGLQJ RI WKH YDOXH RI WKH HPEHGGHG SGY WSH VKDOO EH WKH 3(5 HQFRGLQJ RI DYDOXH RI WKH 2 _ ,62 ,( _ ,62 ,( _,62 ,(3/, _ ,62 ,( _ ,62 ,( _ ,62 ,( ( ,I WKH HQFRGLQJ RI WKH GDWD YDOXH XVLQJ WKH D

18、JUHHG RU QHJRWLDWHG HQFRGLQJ LV DQ LQWHJUDO QXPEHU RI RFWHWV WKHQWKH VHQGLQJ LPSOHPHQWDWLRQ VKDOO EH RFWHW DOLJQHG 127( $ GDWD YDOXH ZKLFK LV D VHULHV RI $61 WSHV DQG IRU ZKLFK WKH WUDQVIHU VQWD VSHFLILHV VLPSOH FRQFDWHQDWLRQ RI WKHRFWHW VWULQJV SURGXFHG E DSSOLQJ WKH $61 %DVLF (QFRGLQJ 5XOHV WR HDF

19、K $61 WSH IDOOV LQWR WKLV FDWHJRU QRW WKDW RI ,I WKH HQFRGLQJ RI WKH GDWD YDOXH XVLQJ WKH DJUHHG RU QHJRWLDWHG HQFRGLQJ LV QRW DQ LQWHJUDO QXPEHU RI RFWHWV WKH HQFRGLQJ FKRLFH VKDOO EH DUELWUDU ,I WKH HQFRGLQJ FKRLFH LV FKRVHQ DV VLQJOH $61 WSH WKHQ WKH $61 WSH VKDOO EH HQFRGHG DV VSHFLILHGLQ ZLWK D

20、 YDOXH HTXDO WR WKH GDWD YDOXH WR EH HQFRGHG 127( 7KH UDQJH RI YDOXHV ZKLFK PLJKW RFFXU LQ WKH RSHQ WSH LV GHWHUPLQHG E WKH UHJLVWUDWLRQ RI WKH REMHFW LGHQWLILHU YDOXHDVVRFLDWHG ZLWK WKH GLUHFW UHIHUHQFH DQG RU WKH LQWHJHU YDOXH DVVRFLDWHG ZLWK WKH LQGLUHFW UHIHUHQFH ,I WKH HQFRGLQJ FKRLFH LV RFWHW

21、DOLJQHG WKHQ WKH GDWD YDOXH VKDOO EH HQFRGHG DFFRUGLQJ WR WKH DJUHHG RUQHJRWLDWHG WUDQVIHU VQWD DQG WKH UHVXOWLQJ RFWHWV VKDOO IRUP WKH YDOXH RI WKH RFWHWVWULQJ ,I WKH HQFRGLQJ FKRLFH LV DUELWUDU WKHQ WKH GDWD YDOXH VKDOO EH HQFRGHG DFFRUGLQJ WR WKH DJUHHG RUQHJRWLDWHG WUDQVIHU VQWD DQG WKH UHVXOW V

22、KDOO IRUP WKH YDOXH RI WKH ELWVWULQJ (QFRGLQJ WKH UHVWULFWHG FKDUDFWHU VWULQJ WSHV127( 7XWRULDO $/,*1( YDULDQW &KDUDFWHU VWULQJV RI ILHG OHQJWK OHVV WKDQ RU HTXDO WR WZR RFWHWV DUH QRW RFWHW DOLJQHG &KDUDFWHU VWULQJV RI YDULDEOH OHQJWK WKDW DUH FRQVWUDLQHG WR KDYH D PDLPXP OHQJWK RI OHVV WKDQ WZR RF

23、WHWV DUH QRW RFWHW DOLJQHG $OO RWKHU FKDUDFWHU VWULQJV DUH RFWHW DOLJQHG )LHG OHQJWK FKDUDFWHU VWULQJV HQFRGH ZLWK QR OHQJWK RFWHWV LI WKH DUH VKRUWHU WKDQ. FKDUDFWHUV )RU XQFRQVWUDLQHG FKDUDFWHU VWULQJV RU FRQVWUDLQHG FKDUDFWHU VWULQJV ORQJHU WKDQ . WKH OHQJWK LV HSOLFLWOHQFRGHG ZLWK IUDJPHQWDWLRQ

24、LI QHFHVVDU (DFK 1XPHULF6WULQJ 3ULQWDEOH6WULQJ 9LVLEOH6WULQJ ,62 6WULQJ ,$ 6WULQJ %036WULQJ DQG 8QLYHUVDO6WULQJ FKDUDFWHU LV HQFRGHG LQWR WKH QXPEHU RI ELWV WKDW LV WKH VPDOOHVW SRZHU RI WZR WKDW FDQDFFRPPRGDWH DOO FKDUDFWHUV DOORZHG E WKH HIIHFWLYH 3HUPLWWHG$OSKDEHW FRQVWUDLQW 127( 7XWRULDO 81$/,*1

25、( YDULDQW &KDUDFWHU VWULQJV DUH QRW RFWHW DOLJQHG ,I WKHUH LV RQO RQH SRVVLEOH OHQJWK YDOXH WKHUHLV QR OHQJWK HQFRGLQJ LI WKH DUH VKRUWHU WKDQ . FKDUDFWHUV )RU XQFRQVWUDLQHG FKDUDFWHU VWULQJV RU FRQVWUDLQHG FKDUDFWHU VWULQJVORQJHU WKDQ . WKH OHQJWK LV HSOLFLWO HQFRGHG ZLWK IUDJPHQWDWLRQ LI QHFHVVDU

26、(DFK 1XPHULF6WULQJ 3ULQWDEOH6WULQJ 9LVLEOH6WULQJ ,62 6WULQJ ,$ 6WULQJ %036WULQJ DQG 8QLYHUVDO6WULQJ FKDUDFWHU LV HQFRGHG LQWR WKH QXPEHU RI ELWV WKDW LV WKHVPDOOHVW WKDW FDQ DFFRPPRGDWH DOO FKDUDFWHUV DOORZHG E WKH HIIHFWLYH 3HUPLWWHG$OSKDEHW FRQVWUDLQW 127( 7XWRULDO RQ VLH RI HDFK HQFRGHG FKDUDFWHU

27、 (QFRGLQJ RI HDFK FKDUDFWHU GHSHQGV RQ WKH HIIHFWLYH 3HUPLWWHG$OSKDEHWFRQVWUDLQW VHH ZKLFK GHILQHV WKH DOSKDEHW LQ XVH IRU WKH WSH 6XSSRVH WKLV DOSKDEHW FRQVLVWV RI D VHW RI FKDUDFWHUV $/3+$VD )RU HDFK RI WKH NQRZQ PXOWLSOLHU FKDUDFWHU VWULQJ WSHV VHH WKHUH LV DQ LQWHJHU YDOXH DVVRFLDWHG ZLWK HDFK F

28、KDUDFWHU REWDLQHG E UHIHUHQFH WR VRPH FRGH WDEOH DVVRFLDWHG ZLWK WKH UHVWULFWHG FKDUDFWHU VWULQJ WSH 7KH VHW RI YDOXHV %(7$ VD FRUUHVSRQGLQJ WR WKH VHW RI FKDUDFWHUV $/3+$ LV XVHG WR GHWHUPLQH WKH HQFRGLQJ WR EH XVHG DV IROORZV WKH QXPEHU RI ELWV IRU WKHHQFRGLQJ RI HDFK FKDUDFWHU LV GHWHUPLQHG VROHO

29、 E WKH QXPEHU RI HOHPHQWV 1 LQ WKH VHW %(7$ RU $/3+$ )RU WKH81$/,*1( YDULDQW LV WKH VPDOOHVW QXPEHU RI ELWV WKDW FDQ HQFRGH WKH YDOXH 1 DV D QRQ QHJDWLYH ELQDU LQWHJHU )RU WKH$/,*1( YDULDQW WKLV LV WKH VPDOOHVW QXPEHU RI ELWV WKDW LV D SRZHU RI WZR DQG WKDW FDQ HQFRGH WKH YDOXH 1 6XSSRVH WKHVHOHFWHG

30、 QXPEHU RI ELWV LV % 7KHQ LI HYHU YDOXH LQ WKH VHW %(7$ FDQ EH HQFRGHG ZLWK QR WUDQVIRUPDWLRQ LQ % ELWV WKHQ WKHYDOXH LQ VHW %(7$ LV XVHG WR UHSUHVHQW WKH FRUUHVSRQGLQJ FKDUDFWHUV LQ WKH VHW $/3+$ 2WKHUZLVH WKH YDOXHV LQ VHW %(7$ DUHWDNHQ LQ DVFHQGLQJ RUGHU DQG UHSODFHG E YDOXHV DQG VR RQ XS WR 1 DQ

31、G LW LV WKHVH YDOXHV WKDW DUH XVHG WR UHSUHVHQW WKHFRUUHVSRQGLQJ FKDUDFWHU ,Q VXPPDU PLQLPXP ELWV WDNHQ WR WKH QHW SRZHU RI WZR IRU WKH $/,*1( YDULDQW DUH DOZDV XVHG 3UHIHUHQFH LV WKHQ JLYHQ WR XVLQJ WKH YDOXH QRUPDOO DVVRFLDWHG ZLWK WKH FKDUDFWHU EXW LI DQ RI WKHVH YDOXHV FDQQRW EH HQFRGHG LQWKH PL

32、QLPXP QXPEHU RI ELWV D FRPSDFWLRQ LV DSSOLHG 7KH IROORZLQJ UHVWULFWHG FKDUDFWHU VWULQJ WSHV DUH NQRZQ PXOWLSOLHU FKDUDFWHU VWULQJ WSHV 1XPHULF6WULQJ 3ULQWDEOH6WULQJ 9LVLEOH6WULQJ ,62 6WULQJ ,$ 6WULQJ %036WULQJ 8QLYHUVDO6WULQJ (IIHFWLYH 3HUPLWWHG$OSKDEHWFRQVWUDLQWV DUH 3(5 YLVLEOH RQO IRU WKHVH WSHV

33、7KH HIIHFWLYH VLH FRQVWUDLQW QRWDWLRQ PD GHWHUPLQH DQ XSSHU ERXQG DXE IRU WKH OHQJWK RI WKH DEVWUDFWFKDUDFWHU VWULQJ 2WKHUZLVH DXE LV XQVHW 7KH HIIHFWLYH VLH FRQVWUDLQW QRWDWLRQ PD GHWHUPLQH D QRQ HUR ORZHU ERXQG DOE IRU WKH OHQJWK RI WKHDEVWUDFW FKDUDFWHU VWULQJ 2WKHUZLVH DOE LV HUR 127( 3(5 YLVLEO

34、H FRQVWUDLQWV RQO DSSO WR NQRZQ PXOWLSOLHU FKDUDFWHU VWULQJ WSHV )RU RWKHU UHVWULFWHG FKDUDFWHU VWULQJ WSHVDXE ZLOO EH XQVHW DQG DOE ZLOO EH HUR Copyright American National Standards Institute Provided by IHS under license with ANSINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-