(Swift 2) SSH HSM Public Key Authentication

Demonstrates how to authenticate with an SSH server using public key authentication using an HSM (USB token or smartcard).

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

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

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

    let pkcs11 = CkoPkcs11()

    // This would be a path to a .dylib on MacOS, or a path to a .so shared lib on Linux.
    pkcs11.SharedLibPath = "C:/Program Files (x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS1164.dll"
    var pin: String? = "0000"
    var userType: Int = 1

    // Establish a PKCS11 logged-on session using the driver (.so, .dylib, or .dll) as specified in the SharedLibPath above.
    var success: Bool = pkcs11.QuickSession(userType, pin: pin)
    if success == false {
        print("\(pkcs11.LastErrorText)")
        return
    }

    // Set PKCS11 attributes to find our desired private key object.
    let json = CkoJsonObject()
    json.UpdateString("class", value: "private_key")
    json.UpdateString("label", value: "MySshKey")

    // Get the PKCS11 handle to the private key located on the HSM.
    var priv_handle: UInt32 = pkcs11.FindObject(json)

    // Get the PKCS11 handle to the corresponding public key located on the HSM.
    json.UpdateString("class", value: "public_key")

    var pub_handle: UInt32 = pkcs11.FindObject(json)

    let key = CkoSshKey()
    // The key type can be "rsa" or "ec"
    var keyType: String? = "rsa"
    success = key.UsePkcs11(pkcs11, privKeyHandle: priv_handle, pubKeyHandle: pub_handle, keyType: keyType)
    if success == false {
        print("\(key.LastErrorText)")
        return
    }

    let ssh = CkoSsh()

    success = ssh.Connect("example.com", port: 22)
    if success != true {
        print("\(ssh.LastErrorText)")
        return
    }

    // Authenticate with the SSH server using the login and
    // HSM private key.  (The corresponding public key should've 
    // been installed on the SSH server beforehand.)
    success = ssh.AuthenticatePk("myLogin", privateKey: key)
    if success != true {
        print("\(ssh.LastErrorText)")
        return
    }

    print("Public-Key Authentication Successful!")

}