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GB/T 37376-2024: Transportation - Digital certificate format Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 37376: Historical versions
Similar standardsGB/T 37376-2024: Transportation - Digital certificate format---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT37376-2024GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 03.220.20; 35.240.60 CCS R 07 Replacing GB/T 37376-2019 Transportation - Digital certificate format Issued on. AUGUST 23, 2024 Implemented on. MARCH 01, 2025 Issued by. State Administration for Market Regulation; National Standardization Administration. Table of ContentsForeword... 3 1 Scope... 6 2 Normative references... 6 3 Terms and definitions... 7 4 Abbreviations... 7 5 Classification of digital certificates... 8 6 Digital certificate format... 8 Appendix A (Normative) Signature calculation process... 42 Appendix B (Informative) Example of ITS certificate... 44 Appendix C (Normative) ITS CRL security encapsulation related data structure... 47 Appendix D (Informative) Example of ITS CRL... 52 References... 541 ScopeThis document specifies the requirements for the classification and format of digital certificates in transportation information systems. This document applies to the design, development, testing, application of software and hardware systems related to digital certificates in transportation information systems.2 Normative referencesThe contents of the following documents constitute essential clauses of this document through normative references in the text. Among them, for dated references, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies to this document. GB/T 2659.1 Codes for the representation of names of countries and their subdivisions - Part 1.Country code GB/T 13000 Information technology - Universal multiple-octet coded character set (UCS) GB/T 16262 (all parts) Information technology - Abstract syntax notation one (ASN.1) GB/T 20518 Information security technology - Public key infrastructure - Digital certificate format GB/T 25069 Information security techniques - Terminology GB/T 32905 Information security techniques - SM3 cryptographic hash algorithm GB/T 32907 Information security technology - SM4 block cipher algorithm GB/T 32918.1 Information security technology - Public key cryptographic algorithm SM2 based on elliptic curves - Part 1.General GB/T 32918.2 Information security technology - Public key cryptographic algorithm SM2 based on elliptic curves - Part 2.Digital signature algorithm YD/T 3957-2021 LTE-based vehicular communication - Technical requirement of security certificate management system ISO/IEC 8825-7 Information technology - ASN.1 encoding rules - Part 7. Specification of Octet Encoding Rules (OER)3 Terms and definitionsThe terms and definitions as defined in GB/T 25069, GB/T 32905, GB/T 32907, GB/T 32918.2, as well as the following terms and definitions, apply to this document. 3.1 Digital certificate A trusted digital document digitally signed by a third-party certificate authority (CA) recognized by the state and with authority, credibility, impartiality. [Source. GB/T 20518-2018, 3.7] 3.2 ITS certificate A digital certificate with a specific format issued to on-board units, roadside units, mobile terminals, operation service providers in intelligent transportation systems. 3.3 SM2 algorithm An elliptic curve public key cryptographic algorithm defined by GB/T 32918. [Source. GB/T 25069-2022, 3.583]4 AbbreviationsThe following abbreviations apply to this document. COER. Canonical Octet Encoding Rules CRACA. Certificate Revocation Authorizing Certificate Authority CRL. Certificate Revocation List ITS. Intelligent Transport System LA. Linkage Authority SPDU. Secured Protocol Data Unit SSP. Service Specific Permissions5 Classification of digital certificatesThe digital certificates issued and managed in the transportation information system include the following 5 categories. a) Institutional certificates - General format certificates issued to transportation information system institutions; b) Civil servant certificates - General format certificates issued to end users of transportation information system staff; c) Social public certificates - General format certificates issued to end users of the public outside the transportation information system; d) Equipment certificate - General format certificate issued to servers and supporting terminal equipment of transportation information systems;6 Digital certificate format6.1 General format Institutional certificates, public servant certificates, social public certificates, equipment certificate formats, certificate revocation lists shall comply with the requirements of GB/T 20518. 6.2 ITS certificate format 6.2.1 Basic elements 6.2.1.1 Encoding rules The data structure defined in this document shall comply with the requirements of GB/T 16262 (all parts). The various information in the digital certificate format shall be encoded using the COER encoding rules specified in ISO/IEC 8825-7. 6.2.1.2 Basic data types The basic data types are defined as follows. The following octet strings are used in the data structure definitions. 6.2.1.3 Application identifier Definition type. Aid 6.2.1.4 3-byte (OCTET) hash value Definition type. HashedId3 6.2.1.5 8-byte (OCTET) hash value Definition type. HashedId8 Structure. HashedId8..= OCTET STRING (SIZE(8)) SequenceOfHashedId8..= SEQUENCE OF HashedId8 Description. This data structure contains an 8-byte truncated hash value of another data structure. The HashedId8 of a given data structure is obtained by computing the hash value of the encoded data structure and taking the low-order 8 octets of the hash output. The low-order 8 bytes are the last 8 octets of the hash value, when represented in network byte order. 6.2.1.6 10-byte (OCTET) hash value Type definition. HashedId10 Structure. HashedId10..= OCTET STRING (SIZE(10)) SequenceOfHashedId10..= SEQUENCE OF HashedId10 Description. This data structure contains a 10-byte truncated hash value of another data structure. HashedId10 of a given data structure is obtained by computing the hash value of the encoded data structure and taking the low-order 10 octets of the hash output. The low-order 10 bytes are the last 10 octets of the hash value, when represented in network byte order. 6.2.1.7 Hash algorithm Type definition. HashAlgorithm Structure. Description. This data structure represents a hash algorithm. 6.2.1.8 32-bit time Definition type. Time32 Structure. Time32..= Uint32 Description. Time32 is a 32-bit unsigned integer, with high-order first encoding format, giving the number of seconds of the International Atomic Time since 08.00.00 Beijing time on January 1, 2004. 6.2.1.9 64-bit time Definition type. Time64 Structure. Time64..= Uint64 Description. Time64 is a 64-bit unsigned integer, with high-order first encoding format, giving the number of microseconds of the International Atomic Time since 08.00.00 Beijing time on January 1, 2004. 6.2.2 Certificate 6.2.2.30 Verification key indicator Definition type. VerificationKeyIndicator Structure. 6.3 ITS certificate revocation list 6.3.1 ITS CRL encapsulation format Definition type. SecuredCrl Structure. Description. ITS CRL is defined as a secure encapsulation message, whose content field type is signed data. The signature data payload structure in the signed CRL has no range data extDataHash field; the data field contains ITSSecData, whose content field type is UnsecuredData data and contains signature content. ITSSecData and other ITS CRL security encapsulation related data structures shall comply with the requirements of Appendix C. 6.3.2 ITS CRL content Definition type. CrlContents Structure. 6.3.3 Priority information Definition Type. CrlPriorityInfo Structure. 6.3.6 Revocation certificate link value information Definition type. ToBeSignedLinkageValueCrl Structure. 6.3.7 Revocation batch information Definition type. JMaxGroup Structure. Description. This data structure contains the following information. - jMax is used for the link value-based revocation algorithm. This value applies to all revocation information contained in contents; - contents contains individual link data. 6.3.8 Linkage authority information Definition type. LAGroup Structure. 6.3.9 Total revocation information Definition type. IMaxGroup Structure. 6.3.10 Individual linkage data Definition type. IndividualRevocation Structure. Description. This data structure contains the following information. - linkageSeed1 is used as the LinkageSeed 1 parameter for the revocation algorithm based on the double seed link value; - linkageSeed2 is used as the LinkageSeed 2 parameter for the revocation algorithm based on the double seed link value. 6.3.11 Dual link authority CRL information Definition type. GroupCrlEntry Structure. 6.3.12 Single link authority CRL information Definition type. GroupSingleSeedCrlEntry Structure. Description. This data structure contains the following information. 6.3.13 Linkage authority identifier Definition type. LaId 6.3.14 Linkage seed Definition type. LinkageSeed Structure. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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