6.5 ExtendedCertificateOrCertificate

ExtendedCertificateOrCertificate類型指定一個PKCS#6擴展證書或者一個X.509證書。這一類型見PKCS#6 第6節推薦的語法：
ExtendedCertificateOrCertificate ::= CHOICE {
certificate Certificate, – X.509
extendedCertificate [0] IMPLICIT ExtendedCertificate
}