Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!news.albasani.net!.POSTED!not-for-mail
From: Laura Schmidt <ls@mailinator.com>
Newsgroups: comp.lang.java.programmer
Subject: convert byte array to hex string using BigInteger
Date: Thu, 20 Jun 2013 14:03:21 +0200
Organization: albasani.net
Lines: 23
Message-ID: <kpur29$5v4$1@news.albasani.net>
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
X-Trace: news.albasani.net 6oE9nHXDBa6E8BxBGT8h4xa4aNof8pBgS2sFWIlf7dZ1dBHgRUdvNCJ/+lUYlWeh9A0fAmxqO91VoQN83SMWVQ==
NNTP-Posting-Date: Thu, 20 Jun 2013 12:03:21 +0000 (UTC)
Injection-Info: news.albasani.net; logging-data="vUbELUWkvQ3lAQng0DnWg6VnS74iZJGQyvWzZtQ/S/nNArkKRFoYaOdK3Za0suZG3xbYGCauI9jSVwb6c8uLDxQ9eApOkNKDcySE9sgRC3KStdqYCHvx9ZjtZSvqxJnN"; mail-complaints-to="abuse@albasani.net"
User-Agent: Mozilla/5.0 (X11; Linux i686; rv:10.0.12) Gecko/20130116 Icedove/10.0.12
Cancel-Lock: sha1:sU7rHtf+AOyVxbdQiBPYu53rnwQ=
Xref: csiph.com comp.lang.java.programmer:24481

Hi,

I try to convert a byte array to a hex string like this:

  private static String hex_encode (byte [] val)
  {
   BigInteger b = new BigInteger(val);

   String t = b.toString(16);

   return (t);
  }

For a long byte array it returns a "negative" hex string, i. e. starting 
with a "-" sign.

But I want just the bytes in the array converted to hex representation, 
each one ranging from "00" to "FF". There should be no minus sign then.

Can you help?
Thanks!

Laura