Fixed failing tests on Windows

Author: jaaufauvre

src/main/java/com/mastercard/developer/utils/EncryptionUtils.java

@@ -47,15 +47,17 @@ public static PrivateKey loadDecryptionKey(String keyFilePath) throws GeneralSec
             // OpenSSL / PKCS#1 Base64 PEM encoded file
             keyDataString = keyDataString.replace(PKCS_1_PEM_HEADER, "");
             keyDataString = keyDataString.replace(PKCS_1_PEM_FOOTER, "");
-            keyDataString = keyDataString.replace(System.lineSeparator(), "");
+            keyDataString = keyDataString.replace("\n", "");
+            keyDataString = keyDataString.replace("\r\n", "");
             return readPkcs1PrivateKey(base64Decode(keyDataString));
         }
 
         if (keyDataString.contains(PKCS_8_PEM_HEADER)) {
             // PKCS#8 Base64 PEM encoded file
             keyDataString = keyDataString.replace(PKCS_8_PEM_HEADER, "");
             keyDataString = keyDataString.replace(PKCS_8_PEM_FOOTER, "");
-            keyDataString = keyDataString.replace(System.lineSeparator(), "");
+            keyDataString = keyDataString.replace("\n", "");
+            keyDataString = keyDataString.replace("\r\n", "");
             return readPkcs8PrivateKey(base64Decode(keyDataString));
         }