/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
protected override void Dispose(bool disposing)
{
Mode = null;
AesKeyBytes = AesKeyBytes.Clear();
HmacKey = HmacKey.SafeDispose();
}
/// <summary>
/// Generates the key.
/// </summary>
/// <param name="size">The size.</param>
protected override void GenerateKey(int size, KeyczarConfig config)
{
AesKeyBytes = new byte[size / 8];
Secure.Random.NextBytes(AesKeyBytes);
HmacKey = (HmacSha1Key)Generate(KeyType.HmacSha1, 0 /*uses default size*/);
}