1 files changed, 27 insertions, 0 deletions
diff --git a/Tools/Hazel-Networking/Hazel/Crypto/IAes.cs b/Tools/Hazel-Networking/Hazel/Crypto/IAes.cs
new file mode 100644
index 0000000..6c494cd
--- /dev/null
+++ b/Tools/Hazel-Networking/Hazel/Crypto/IAes.cs
@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Hazel.Crypto
+{
+    /// <summary>
+    /// AES encryption interface
+    /// </summary>
+    public interface IAes : IDisposable
+    {
+        /// <summary>
+        /// Encrypts the specified region of the input byte array and copies
+        /// the resulting transform to the specified region of the output
+        /// array.
+        /// </summary>
+        /// <param name="inputSpan">The input for which to encrypt</param>
+        /// <param name="outputSpan">
+        /// The otput to which to write the encrypted data. This span can
+        /// overlap with `inputSpan`.
+        /// </param>
+        /// <returns>The number of bytes written</returns>
+        int EncryptBlock(ByteSpan inputSpan, ByteSpan outputSpan);
+    }
+}