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Specification of certificate request syntax based on SM2 cryptographic algorithm
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GM/T 0092-2020: Specification of certificate request syntax based on SM2 cryptographic algorithm---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/GMT0092-2020
GM
CRYPTOGRAPHIC INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 35.040
CCS L 80
Specification of certificate request syntax based on
SM2 cryptographic algorithm
ISSUED ON: DECEMBER 28, 2020
IMPLEMENTED ON: JULY 01, 2021
Issued by: National Cryptography Administration
Table of Contents
Foreword ... 3
Introduction ... 4
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 5
4 Abbreviations ... 6
5 Definition of OID ... 6
6 Certificate request syntax ... 7
7 Extended attributes of certificate request information ... 8
8 Certificate response format ... 9
Annex A (normative) ASN.1 syntax ... 10
Bibliography ... 12
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2020
“Directives for standardization - Part 1: Rules for the structure and drafting of
standardizing documents”.
Attention is drawn to the possibility that some of the elements of this Standard
may be the subject of patent rights. The issuing authority shall not be held
responsible for identifying any or all such patent rights.
This Standard was proposed by and shall be under the jurisdiction of
Cryptographic Industry Standardization Technical Committee.
The drafting organizations of this Standard: Beijing Xin'an Century Technology
Co., Ltd., Geer Software Co., Ltd., Beijing Digital Certification Co., Ltd.,
Changchun Jitai Zhengyuan Information Technology Co., Ltd., Xingtang
Communication Technology Co., Ltd., Weishitong Information Industry Co., Ltd.,
National Information Security Engineering Technology Research Center,
Shandong De’an Information Technology Co., Ltd., Beijing Chuangyuan Tiandi
Technology Co., Ltd.
Main drafters of this Standard: Wang Zongbin, Liu Ting, Zheng Qiang, Fu
Dapeng, Zhao Lili, Wang Nina, Zhao Shan, Luo Jun, Zhang Xu, Zhou Shujing,
Zhang Qingyong, Jiao Jingwei, Shi Xiaofeng, Ma Hongfu.
Specification of certificate request syntax based on
SM2 cryptographic algorithm
1 Scope
This document defines the certificate request syntax that uses SM2
cryptographic algorithm, the extended attributes of the certificate request
information, and the certificate response format.
This document is applicable to the development of digital certificate
authentication system. When the digital certificate application system uses SM2
cryptographic algorithm for certificate request operations, it encapsulates the
standardization of the certificate request syntax.
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 edition of the referenced document (including any
amendments) applies.
GB/T 31503-2015, Information security technology - Encryption and
signature message syntax for electronic document
GB/T 32905, Information security technology SM3 cryptographic hash
algorithm
GB/T 33560-2017, Information security technology - Cryptographic
application identifier criterion specification
GB/T 35275-2017, Information security technology - SM2 cryptographic
algorithm encrypted signature message syntax specification
GB/T 35276-2017, Information security technology - SM2 cryptography
algorithm usage specification
GM/Z 4001, Cryptographic terms
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GM/Z
4001 as well as the followings apply.
3.1 certificate
a credible digital document that is digitally signed by an authoritative, credible
and impartial third-party certificate certification body recognized by the state
3.2 signature
an algorithm defined by GB/T 32905; it is a value generated by an application
program that uses a cryptographic algorithm to calculate with a private key; with
the characteristics of integrity, message authentication and/or signer
authentication
3.3 attributes
a collection of object attributes and a related attribute value
4 Abbreviations
The following abbreviations apply to this document.
ASN.1: Abstract Syntax Notation One
BER: Basic Encoding Rule
CA: Certificate Authority
DER: Distinguished Encoding Rules for ASN.1; DER is a subset of BER
OID: Object Identity
5 Definition of OID
This document defines the identifiers of the three objects
certificationRequestInfo, certificationRequest, and challengePassword, see
Table 1.
Where,
AlgorithmIdentifier here is used to identify the signature algorithm.
OBJECTIDENTIFIER identifies the specific algorithm. The content of the
optional parameters completely depends on the identified algorithm. The
signature algorithm of this document is a signature based on SM2 algorithm
and SM3 algorithm, without parameters. Its OID is in accordance with GB/T
33560-2017.
The type composition of CertificationRequest is shown in Table 3.
The subject sending a certificate application generally occurs after the public
and private key pair is generated, or after the subject's distinguished name is
changed. When applying for a certificate, the purpose of signing the certificate
request information is to prevent the subject from using the other party’s public
key for certificate request. The signing process consists of the following two
steps:
a) The components of CertificationRequestInfo are encoded by DER to
generate a byte string;
b) The result of a) is signed with the private key of the subject of the certificate
request and a specific signature algorithm to generate a bit string, that is,
a signature.
7 Extended attributes of certificate request information
ChallengePassword attribute type specifies a password. Using this password,
the subject can apply for a certificate or revoke the certificate.
The challenge password attribute shall have a unique attribute value.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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