fix MD5 not work on FIPS enabled machine issue

Author: blueww

src/Storage/Commands.Storage/Blob/Cmdlet/SetAzureStorageBlobContent.cs

@@ -500,6 +500,12 @@ public override void ExecuteCmdlet()
                 ValidateBlobProperties(BlobProperties);
             }
 
+            // if FIPS policy is enabled, must use native MD5
+            if (FIPSEnabled)
+            {
+                CloudStorageAccount.UseV1MD5 = false;
+            }
+
             string containerName = string.Empty;
 
             switch (ParameterSetName)

src/Storage/Commands.Storage/Common/StorageCloudCmdletBase.cs

@@ -622,5 +622,32 @@ protected override void StopProcessing()
             cancellationTokenSource.Cancel();
             base.StopProcessing();
         }
+
+        /// <summary>
+        /// true if FIPS policy is enabled on the current machine
+        /// </summary>
+        protected static bool FIPSEnabled
+        {
+            get
+            {
+                if (fIPSEnabled.HasValue)
+                {
+                    return fIPSEnabled.Value;
+                }
+
+                try
+                {
+                    System.Security.Cryptography.MD5.Create();
+                }
+                catch (System.Reflection.TargetInvocationException)
+                {
+                    fIPSEnabled = true;
+                    return true;
+                }
+                fIPSEnabled = false;
+                return false;
+            }
+        }
+        private static bool? fIPSEnabled = null;
     }
 }

src/Storage/Commands.Storage/File/Cmdlet/SetAzureStorageFileContent.cs

@@ -80,6 +80,12 @@ public override void ExecuteCmdlet()
                 throw new FileNotFoundException(string.Format(CultureInfo.CurrentCulture, Resources.SourceFileNotFound, this.Source));
             }
 
+            // if FIPS policy is enabled, must use native MD5
+            if (FIPSEnabled)
+            {
+                CloudStorageAccount.UseV1MD5 = false;
+            }
+
             bool isDirectory;
             string[] path = NamingUtil.ValidatePath(this.Path, out isDirectory);
             var cloudFileToBeUploaded =