7.1.2.7.6 已翻譯 對應原文版本:2.3.0

用戶憑證(Subscriber Certificate)之擴充欄位

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Subscriber Certificate Extensions

ExtensionPresenceCriticalDescription
authorityInformationAccessMUSTNSee Section 7.1.2.7.7
authorityKeyIdentifierMUSTNSee Section 7.1.2.11.1
certificatePoliciesMUSTNSee Section 7.1.2.7.9
extKeyUsageMUSTNSee Section 7.1.2.7.10
subjectAltNameMUST*See Section 7.1.2.7.12
nameConstraintsMUST NOT--
keyUsageSHOULDYSee Section 7.1.2.7.11
basicConstraintsMAYYSee Section 7.1.2.7.8
crlDistributionPoints*NSee Section 7.1.2.11.2
Signed Certificate Timestamp ListMAYNSee Section 7.1.2.11.3
subjectKeyIdentifierNOT RECOMMENDEDNSee Section 7.1.2.11.4
Any other extensionNOT RECOMMENDED-See Section 7.1.2.11.5
擴充欄位必要性關鍵性說明
authorityInformationAccess應(MUST)N參見第 7.1.2.7.7 節
authorityKeyIdentifier應(MUST)N參見第 7.1.2.11.1 節
certificatePolicies應(MUST)N參見第 7.1.2.7.9 節
extKeyUsage應(MUST)N參見第 7.1.2.7.10 節
subjectAltName應(MUST)*參見第 7.1.2.7.12 節
nameConstraints不得(MUST NOT)--
keyUsage宜(SHOULD)Y參見第 7.1.2.7.11 節
basicConstraints得(MAY)Y參見第 7.1.2.7.8 節
crlDistributionPoints*N參見第 7.1.2.11.2 節
Signed Certificate Timestamp(SCT)清單得(MAY)N參見第 7.1.2.11.3 節
subjectKeyIdentifier不建議(NOT RECOMMENDED)N參見第 7.1.2.11.4 節
任何其他擴充欄位不建議(NOT RECOMMENDED)-參見第 7.1.2.11.5 節

Notes:

  • whether or not the subjectAltName extension should be marked Critical depends on the contents of the Certificate’s subject field, as detailed in Section 7.1.2.7.12.
  • whether or not the CRL Distribution Points extension must be present depends on 1) whether the Certificate includes an Authority Information Access extension with an id-ad-ocsp accessMethod and 2) the Certificate’s validity period, as detailed in Section 7.1.2.11.2.

注意:

  • subjectAltName 擴充欄位是否應標記為關鍵(Critical),取決於憑證 subject 欄位之內容,詳見第 7.1.2.7.12 節。
  • CRL Distribution Points(CRL 發布點)擴充欄位是否應存在,取決於:(1)憑證是否包含 accessMethod 為 id-ad-ocsp 之 Authority Information Access(AIA)擴充欄位,以及(2)憑證之有效期,詳見第 7.1.2.11.2 節。