I want to store a known AES key (retrieved offline) by entering it into the application once, saving it to Cng for storage, then reference it only by name on subsequent use.

I want to save the key in the Key Storage Provider so my application won't load it into memory.

I can create (generate) a AES key (that I can retreive and create an instance of AesCng with) like this:

CngProvider keyStorageProvider = CngProvider.MicrosoftSoftwareKeyStorageProvider;
CngKeyCreationParameters keyCreationParameters = new CngKeyCreationParameters()
{
    ExportPolicy = CngExportPolicies.AllowPlaintextExport,
    KeyCreationOptions = CngKeyCreationOptions.OverwriteExistingKey
};
var name = "mykey";
var algo = new CngAlgorithm("AES");
var created = CngKey.Create(algo, name, keyCreationParameters);

But how can I add my already known AES symmetric key and just reference it by name the next time I run my application to run encryption/decryption using Cng?

Using CngKey.Import won't let me specify a name and I think I've tried all overloads but all yield some kind of error.

UPDATE:

This is a complete working example when creating a key.

    // Calling code
    byte[] key = //<from external input>;
    byte[] data = new byte[] { 0xA, 0xB, 0xC, 0xD };
    crypto.StoreKey("appkey", key);
    var encryptedData = crypto.EncryptWithStoredKey("appkey", data);

    // Implementation
    public void StoreKey(string name, byte[] key)
    {

        CngKeyCreationParameters keyCreationParameters = new CngKeyCreationParameters()
        {
            KeyCreationOptions = CngKeyCreationOptions.OverwriteExistingKey
        };

        var algo = new CngAlgorithm("AES");

        // Question: How can I import the byte[] key with name "appkey" instead of generating a new key here?
        CngKey.Create(algo, name, keyCreationParameters);
    }

    public byte[] EncryptWithStoredKey(string name, byte[] data)
    {
        using (var cng = new AesCng(name))
        using (var encryptor = cng.CreateEncryptor())
        using (var memoryStream = new MemoryStream())
        {
            using (var cryptoStream = new CryptoStream(memoryStream, encryptor, CryptoStreamMode.Write))
            {
                cryptoStream.Write(data, 0, data.Length);
                cryptoStream.FlushFinalBlock();
                return memoryStream.ToArray();
            }

        }
    }