RFC 文档RFC 6962 - Certificate Transparency6. IANA 考量本页总览6. IANA Considerations (IANA 考量)6. IANA Considerations (IANA 考量) IANA 已为 SCT TLS 扩展分配了 RFC 5246 ExtensionType 值 (18). 扩展名为 signed_certificate_timestamp.