Merge pull request #175 from benvdh/cross-platform-asymmetric-higher-…

…key-encryption-helper

make AsymmetricHigherKeyEncryptionHelper runnable on non-windows platforms

sdk/PowerBI.Api/Extensions/AsymmetricHigherKeyEncryptionHelper.cs

@@ -37,7 +37,7 @@ internal static string Encrypt(byte[] plainTextBytes, byte[] modulusBytes, byte[
             Buffer.BlockCopy(keyMac, 0, keys, keyEnc.Length + 2, keyMac.Length);
             byte[] encryptedKeys;
 
-            using (var rsa = new RSACng())
+            using (var rsa = RSA.Create())
             {
                 var rsaKeyInfo = rsa.ExportParameters(false);
                 rsaKeyInfo.Modulus = modulusBytes;