AesCipher public sealed class AesCipher : BlockCipher AES cipher implementation. Documentation protected uint[,] DecryptionKey { get; } Gets the encryption key. protected uint[,] EncryptionKey { get; } Gets the encryption key. public AesCipher(byte[] key, CipherMode mode, CipherPadding padding) Initializes a new instance of the AesCipher class.