diff --git a/app/src/main/java/com/sample/foo/simplekeystoreapp/MainActivity.java b/app/src/main/java/com/sample/foo/simplekeystoreapp/MainActivity.java
index 508d8d2..2e97b72 100644
--- a/app/src/main/java/com/sample/foo/simplekeystoreapp/MainActivity.java
+++ b/app/src/main/java/com/sample/foo/simplekeystoreapp/MainActivity.java
@@ -174,11 +174,11 @@ public void encryptString(String alias) {
 
     public void decryptString(String alias) {
         try {
-            KeyStore.PrivateKeyEntry privateKeyEntry = (KeyStore.PrivateKeyEntry)keyStore.getEntry(alias, null);
-            RSAPrivateKey privateKey = (RSAPrivateKey) privateKeyEntry.getPrivateKey();
 
-            Cipher output = Cipher.getInstance("RSA/ECB/PKCS1Padding", "AndroidOpenSSL");
-            output.init(Cipher.DECRYPT_MODE, privateKey);
+            KeyStore.PrivateKeyEntry privateKeyEntry = (KeyStore.PrivateKeyEntry) keyStore.getEntry(alias, null);
+            Cipher output = Cipher.getInstance("RSA/ECB/PKCS1Padding");
+            output.init(Cipher.DECRYPT_MODE, privateKeyEntry.getPrivateKey());
+
 
             String cipherText = encryptedText.getText().toString();
             CipherInputStream cipherInputStream = new CipherInputStream(