1 files changed, 40 insertions, 0 deletions
diff --git a/src/System.Private.CoreLib/shared/System/Runtime/Intrinsics/Arm/Arm64/Aes.PlatformNotSupported.cs b/src/System.Private.CoreLib/shared/System/Runtime/Intrinsics/Arm/Arm64/Aes.PlatformNotSupported.cs
new file mode 100644
index 000000000..0ad9634d1
--- /dev/null
+++ b/src/System.Private.CoreLib/shared/System/Runtime/Intrinsics/Arm/Arm64/Aes.PlatformNotSupported.cs
@@ -0,0 +1,40 @@
+using System.Runtime.CompilerServices;
+using System.Runtime.Intrinsics;
+
+namespace System.Runtime.Intrinsics.Arm.Arm64
+{
+    /// <summary>
+    /// This class provides access to the Arm64 AES Crypto intrinsics
+    ///
+    /// Arm64 CPU indicate support for this feature by setting
+    /// ID_AA64ISAR0_EL1.AES is 1 or better
+    /// </summary>
+    [CLSCompliant(false)]
+    public static class Aes
+    {
+        public static bool IsSupported {  get { return false; } }
+        // <summary>
+        /// Performs AES single round decryption
+        /// vaesdq_u8 (uint8x16_t data, uint8x16_t key)
+        ///</summary>
+        public static Vector128<byte> Decrypt(Vector128<byte> value, Vector128<byte> roundKey) { throw new PlatformNotSupportedException(); }
+
+        // <summary>
+        /// Performs AES single round encryption
+        /// vaeseq_u8 (uint8x16_t data, uint8x16_t key)
+        ///</summary>
+        public static Vector128<byte> Encrypt(Vector128<byte> value, Vector128<byte> roundKey) { throw new PlatformNotSupportedException(); }
+
+        // <summary>
+        /// Performs AES  Mix Columns
+        /// vaesmcq_u8 (uint8x16_t data)
+        ///</summary>
+        public static Vector128<byte> MixColumns(Vector128<byte> value) { throw new PlatformNotSupportedException(); }
+
+        // <summary>
+        /// Performs AES inverse mix columns
+        /// vaesimcq_u8  (uint8x16_t data)
+        ///</summary>
+        public static Vector128<byte> InverseMixColumns(Vector128<byte> value) { throw new PlatformNotSupportedException(); }
+    }
+}