Swift

Export Public Key from USB Token or Smartcard using the Apple Keychain

See more Apple Keychain Examples

Demonstrates how to export a public key from a USB token or smart card via the Apple Keychain. Swift

func chilkatTest() {
    var success: Bool = false

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    let cert = CkoCert()!

    // On MacOS and iOS, the LoadByCommonName function will search the Apple Keychain for the matching certificate.

    // A digital certificate's Common Name (CN) is a field in the certificate that specifies the name of the entity the 
    // certificate is issued to. It is often used to identify the domain name, hostname, or organization the certificate represents. 

    // For example:
    // - In an SSL/TLS certificate for a website, the CN typically contains the domain name (e.g., "www.example.com").
    // - For certificates representing individuals or organizations, the CN might include the person's name or the organization's name.

    // The CN is part of the certificate's Subject field and is crucial for verifying that the certificate corresponds 
    // to the intended entity, especially in SSL/TLS communications.

    success = cert.load(byCommonName: "Test 2048 bit RSA")
    if success == false {
        print("\(cert.lastErrorText!)")
        return
    }

    let pubKey = CkoPublicKey()!
    cert.getPublicKey(pubKey: pubKey)

    success = pubKey.savePemFile(preferPkcs1: false, path: "rsaKeys/Test2048Rsa.pem")
    if success == false {
        print("\(pubKey.lastErrorText!)")
    }


}