(Swift 3,4,5...) Subject Alternative Name

Demonstrates the usage of the SubjectAlternativeName property to get the certificate SAN (subject alternative name) as XML.

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    // Note: Not all certificates contain a Subject Alternative Name.
    // If it does not, the SubjectAlternativeName property will contain the empty string.

    let cert = CkoCert()!

    var success: Bool = cert.load(fromFile: "qa_data/certs/testIcpBrasil.cer")
    if success == false {
        print("\(cert.lastErrorText!)")
        return
    }

    var subjectAltNameXml: String? = cert.subjectAlternativeName

    print("\(subjectAltNameXml!)")

    // Here's a sample of the subjectAltNameXml:

    // <?xml version="1.0" encoding="utf-8"?>
    // <SubjectAltName>
    //     <name type="oid" oid="2.16.76.1.3.4">...</name>
    //     <name type="oid" oid="2.16.76.1.3.2">...</name>
    //     <name type="oid" oid="2.16.76.1.3.3">...</name>
    //     <name type="oid" oid="2.16.76.1.3.7">...</name>
    //     <rfc822Name>...</rfc822Name>
    // </SubjectAltName>

    // The XML can be parsed like this:

    let xml = CkoXml()!

    xml.load(subjectAltNameXml)

    var oid: String?
    var name: String?

    var i: Int = 0
    var count_i: Int = xml.numChildrenHavingTag("name").intValue
    while i < count_i {
        xml.i = i
        oid = xml.chilkatPath("name[i]|(oid)")
        name = xml.getChildContent("name[i]")
        i = i + 1
    }

    var rfc822Name: String? = xml.getChildContent("rfc822Name")

}