(Swift 3,4,5...) Load Base64-encoded X.509 Certificate (.cer)

Loads a digital certificate from a base64 encoded DER X.509 Certificate (.cer, .crt) and fetches information about the cert.

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

func chilkatTest() {
    let cert = CkoCert()!

    var success: Bool

    // LoadFromFile will load virtually any certificate format file.
    // It will auto-recognize the format and load appropiately.
    // A base64-encoded DER X.509 certificate file
    // contains the binary DER in base64 encoded form.
    // Therefore, it is a text file that will begin like this:
    // -----BEGIN CERTIFICATE-----
    // MIIFbjCCBFagAwIBAgIGdDPNv/L0MA0GCSqGSIb3DQEBBQUAMIHKMQswCQYDVQQG
    // EwJVUzEQMA4GA1UECBMHQXJpem9uYTETMBEGA1UEBxMKU2NvdHRzZGFsZTEaMBgG
    // ...

    success = cert.load(fromFile: "/Users/chilkat/testData/cer/chilkat_base64.cer")
    if success != true {
        print("\(cert.lastErrorText!)")
        return
    }

    // DN = "Distinguished Name"
    print("SubjectDN:\(cert.subjectDN!)")

    print("Common Name:\(cert.subjectCN!)")
    print("Issuer Common Name:\(cert.issuerCN!)")

    print("Serial Number:\(cert.serialNumber!)")

}