/// <summary>
/// Creates a DES cipher using the provided key.
/// </summary>
/// <param name="key">The DES key. This must be eight bytes.</param>
/// <returns>A DES cipher.</returns>
public static DesCipher Create(byte[] key)
{
Check.Length("key", key, 8, 8);
DesCipher cipher = new DesCipher();
cipher.ExpandKey(key);
return cipher;
}
