+ private static String bytesToHex(byte[] bytes) {
+ char[] hexChars = new char[bytes.length * 2];
+ for ( int j = 0; j < bytes.length; j++ ) {
+ int v = bytes[j] & 0xFF;
+ hexChars[j * 2] = hexArray[v >>> 4];
+ hexChars[j * 2 + 1] = hexArray[v & 0x0F];
+ }
+ return new String(hexChars);
+ }
+