(Swift 3,4,5...) PKCS11 Find all Public Keys

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Demonstrates how to list all public keys on an HSM.

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. (We can typically skip the login by passing an empty PIN if only needing to list public keys)
    // Use your actual PIN here, or an empty string to skip login.
    var pin: String? = "0000"
    var userType: Int = 1
    var success: Bool = pkcs11.quickSession(userType, pin: pin)
    if success == false {
        print("\(pkcs11.lastErrorText!)")
        return
    }

    // Note: To find public keys, we need a session, but it doesn't necessarily need to be logged-on.

    let json = CkoJsonObject()!
    json.emitCompact = false

    success = pkcs11.findAllKeys("public", json: json)
    if success == false {
        print("\(pkcs11.lastErrorText!)")
        return
    }

    print("\(json.emit()!)")

    // Sample output, with parsing code below..

    // {
    //   "keys": [
    //     {
    //       "handle": 74842125,
    //       "id": "0001020304",
    //       "key_type": "RSA",
    //       "label": "Chilkat Software, Inc.",
    //       "modulus": "twVRf6O ... Rwa1ebFY0=",
    //       "exponent": "AAEAAQ=="
    //     },
    //     {
    //       "handle": 18415630,
    //       "id": "010203040A0B0C0D0E0F",
    //       "key_type": "RSA",
    //       "label": "ehealth private key",
    //       "modulus": "qdKjhOwA1 ... A4MtX8BYgHmLw==",
    //       "exponent": "AAEAAQ=="
    //     },
    //     {
    //       "handle": 3735567,
    //       "id": "D531B4B8F308489DA58350596178845973A4562E",
    //       "key_type": "RSA",
    //       "label": "d531b4b8-f308-489d-a583-505961788459",
    //       "modulus": "r0MmXRKBP ... HAd1kUPsNyzcQ==",
    //       "exponent": "AAEAAQ=="
    //     },
    //     {
    //       "handle": 238092304,
    //       "id": "0A0B0C0D01020304",
    //       "key_type": "RSA",
    //       "label": "MySshKey",
    //       "modulus": "ykFHcfBFOq ... rfXBK/6g9t+S6UjJ1kUQ==",
    //       "exponent": "AAEAAQ=="
    //     },
    //     {
    //       "handle": 49348625,
    //       "id": "48656C6C6F",
    //       "key_type": "RSA",
    //       "label": "2048-bit RSA key for testing",
    //       "modulus": "vReVaJzXZYIOB ... kamD/8iNvhAKlKbQ==",
    //       "exponent": "AAEAAQ=="
    //     }
    //   ]
    // }

    // Use this online tool to generate parsing code from sample JSON: 
    // Generate Parsing Code from JSON

    var handle: Int
    var id: String?
    var key_type: String?
    var label: String?
    var modulus: String?
    var exponent: String?

    var i: Int = 0
    var count_i: Int = json.size(ofArray: "keys").intValue
    while i < count_i {
        json.i = i
        handle = json.int(of: "keys[i].handle").intValue
        id = json.string(of: "keys[i].id")
        key_type = json.string(of: "keys[i].key_type")
        label = json.string(of: "keys[i].label")
        modulus = json.string(of: "keys[i].modulus")
        exponent = json.string(of: "keys[i].exponent")
        i = i + 1
    }

    pkcs11.logout()
    pkcs11.closeSession()

}