7.1.2.1.3 已翻譯對應原文版本：2.3.0

根憑證機構（Root CA）之授權單位金鑰識別碼（Authority Key Identifier）

Root CA Authority Key Identifier

Field Description
keyIdentifier MUST be present. MUST be identical to the subjectKeyIdentifier field.
authorityCertIssuer MUST NOT be present
authorityCertSerialNumber MUST NOT be present

Field	Description
`keyIdentifier`	MUST be present. MUST be identical to the `subjectKeyIdentifier` field.
`authorityCertIssuer`	MUST NOT be present
`authorityCertSerialNumber`	MUST NOT be present

欄位	說明
`keyIdentifier`	應（MUST）存在。應（MUST）與 `subjectKeyIdentifier` 欄位完全相同。
`authorityCertIssuer`	不得（MUST NOT）存在
`authorityCertSerialNumber`	不得（MUST NOT）存在