diff --git a/panbox-core/src/org/panbox/core/crypto/CryptCore.java b/panbox-core/src/org/panbox/core/crypto/CryptCore.java
index 8bcf77a..ecd87c9 100644
--- a/panbox-core/src/org/panbox/core/crypto/CryptCore.java
+++ b/panbox-core/src/org/panbox/core/crypto/CryptCore.java
@@ -497,7 +497,7 @@ public static boolean checkChecksum(File f, byte[] tocheck)
 			throws NoSuchAlgorithmException, NoSuchProviderException,
 			FileNotFoundException, IOException {
 		byte[] ref = genChecksum(f);
-		return Arrays.equals(ref, tocheck);
+		return MessageDigest.isEqual(ref, tocheck);
 	}
 
 	public static char[] deriveKeystorePass(char[] userpass, byte[] salt)