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+# Certificate Object 证书对象
+
+* `data` String - PEM encoded data
+* `issuer` [CertificatePrincipal](certificate-principal.md) - Issuer principal
+* `issuerName` String - Issuer's Common Name
+* `issuerCert` Certificate - Issuer certificate (if not self-signed)
+* `subject` [CertificatePrincipal](certificate-principal.md) - Subject principal
+* `subjectName` String - Subject's Common Name
+* `serialNumber` String - Hex value represented string
+* `validStart` Number - Start date of the certificate being valid in seconds
+* `validExpiry` Number - End date of the certificate being valid in seconds
+* `fingerprint` String - Fingerprint of the certificate