1 files changed, 57 insertions, 0 deletions
diff --git a/src/mscorlib/src/System/Security/Cryptography/MD5CryptoServiceProvider.cs b/src/mscorlib/src/System/Security/Cryptography/MD5CryptoServiceProvider.cs
new file mode 100644
index 0000000000..b1aa99b579
--- /dev/null
+++ b/src/mscorlib/src/System/Security/Cryptography/MD5CryptoServiceProvider.cs
@@ -0,0 +1,57 @@
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+using System.Diagnostics.Contracts;
+namespace System.Security.Cryptography {
+[System.Runtime.InteropServices.ComVisible(true)]
+    public sealed class MD5CryptoServiceProvider : MD5 {
+        [System.Security.SecurityCritical] // auto-generated
+        private SafeHashHandle _safeHashHandle = null;
+
+        //
+        // public constructors
+        //
+
+        [System.Security.SecuritySafeCritical]  // auto-generated
+        public MD5CryptoServiceProvider() {
+            if (CryptoConfig.AllowOnlyFipsAlgorithms)
+                throw new InvalidOperationException(Environment.GetResourceString("Cryptography_NonCompliantFIPSAlgorithm"));
+            Contract.EndContractBlock();
+
+            // _CreateHash will check for failures and throw the appropriate exception
+            _safeHashHandle = Utils.CreateHash(Utils.StaticProvHandle, Constants.CALG_MD5);
+        }
+
+        [System.Security.SecuritySafeCritical] // overrides public transparent member
+        protected override void Dispose(bool disposing)
+        {
+            if (_safeHashHandle != null && !_safeHashHandle.IsClosed)
+                _safeHashHandle.Dispose();
+            base.Dispose(disposing);
+        }
+
+        //
+        // public methods
+        //
+
+        [System.Security.SecuritySafeCritical]  // auto-generated
+        public override void Initialize() {
+            if (_safeHashHandle != null && !_safeHashHandle.IsClosed)
+                _safeHashHandle.Dispose();
+            
+            // _CreateHash will check for failures and throw the appropriate exception
+            _safeHashHandle = Utils.CreateHash(Utils.StaticProvHandle, Constants.CALG_MD5);
+        }
+
+        [System.Security.SecuritySafeCritical] // overrides protected transparent member
+        protected override void HashCore(byte[] rgb, int ibStart, int cbSize)
+        {
+            Utils.HashData(_safeHashHandle, rgb, ibStart, cbSize);
+        }
+
+        [System.Security.SecuritySafeCritical] // overrides protected transparent member
+        protected override byte[] HashFinal() {
+            return Utils.EndHash(_safeHashHandle);
+        }
+    }
+}