(Swift 2) PKCS11 Import an Existing RSA Public Key onto the HSM

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Demonstrates how to import an existing RSA Public Key onto a smart card or token.

Note: This example requires Chilkat v9.5.0.96 or later.

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

    // Note: Chilkat's PKCS11 implementation runs on Windows, Linux, Mac OS X, and other supported operating systems.

    let pkcs11 = CkoPkcs11()

    // Use the PKCS11 driver (.dll, .so, .dylib) for your particular HSM.
    // (The format of the path will change with the operating system.  Obviously, "C:/" is not used on non-Windows systems.
    pkcs11.SharedLibPath = "C:/Program Files (x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS1164.dll"

    // Establish a logged-on session.
    var pin: String? = "0000"
    var userType: Int = 1
    var success: Bool = pkcs11.QuickSession(userType, pin: pin)
    if success == false {
        print("\(pkcs11.LastErrorText)")
        return
    }

    // Generate a new 2048-bit RSA key.
    let rsa = CkoRsa()
    success = rsa.GenerateKey(2048)
    if success == false {
        print("\(rsa.LastErrorText)")
        return
    }

    // Get the public key information as XML, so we can access the modulus and exponent.
    let xml = CkoXml()
    xml.LoadXml(rsa.ExportPublicKey())

    let attrs = CkoJsonObject()
    // Specify the type of object, and the type of key.
    attrs.UpdateString("class", value: "CKO_PUBLIC_KEY")
    attrs.UpdateString("key_type", value: "CKK_RSA")
    // Add an optional label if desired.
    attrs.UpdateString("label", value: "RSA Public Key 1")
    // Allow the key to be use for verify, wrapping, and encryption operations.
    attrs.UpdateBool("verify", value: true)
    attrs.UpdateBool("wrap", value: true)
    attrs.UpdateBool("encrypt", value: true)

    // Make this a session-only public key.
    // To store the public key on the token so that it persists after the PKCS11 session, set token = true.
    attrs.UpdateBool("token", value: false)

    // Provide the RSA public key material
    attrs.UpdateString("modulus", value: xml.GetChildContent("Modulus"))
    attrs.UpdateString("public_exponent", value: xml.GetChildContent("Exponent"))

    // Create the RSA public key.
    // Returns the PKCS11 object handle of the created key.
    var objHandle: UInt32 = pkcs11.CreatePkcs11Object(attrs)
    if objHandle == 0 {
        print("\(pkcs11.LastErrorText)")
        print("Failed.")
    }
    else {
        print("PKCS11 object handle = \(objHandle)")
        print("Successfully imported an RSA key..")
    }

    pkcs11.Logout()
    pkcs11.CloseSession()

}