From: Charles Johnson <charles.johnson@...>
Date: 2009-04-28T00:51:33+09:00
Subject: Re: Legacy encryption function...


On Apr 27, 2009, at 10:19 AM, Alexandre Alex wrote:

> Hello everyone, I have an old Java authentication web service that I
> must use in my rails development. The service takes a username and an
> encrypted password. I'm having trouble reproducing the same encryption
> algorithm.
>
> Here is the Java encryption function:
>  public static String digest(String text)
>  {
>    MessageDigest mDigest = null;
>    try
>    {
>      mDigest = MessageDigest.getInstance("SHA");
>
>
>      mDigest.update(text.toUpperCase().getBytes("UTF-8"));
>    } catch (NoSuchAlgorithmException nsae) {
>      nsae.printStackTrace();
>    } catch (UnsupportedEncodingException uee) {
>      uee.printStackTrace();
>    }
>    byte[] raw = mDigest.digest();
>    return new BASE64Encoder().encode(raw);
>  }
>
>
> Here is the Ruby encryption function:
> ...
> require 'digest/sha1'
> Base64.encode64(Digest::SHA1.hexdigest('ruby'))
> ...
>
>
> Now here is the resulting String calling the Java function with the
> string 'ruby':
> "oJtN1kHfQdCCLFN7ATWgAxIH6bc="
>
>
> Here is what I get with my Ruby function for the same string:
> "MThlNDBlMTQwMWVlZjY3ZTFhZTY5ZWZhYjA5YWZiNzFmODdmZmI4MQ==\n"
>
>
> So, anybody knows what I'm doing wrong?
> -- 
> Posted via http://www.ruby-forum.com/.
>
What happens if you do this:

mDigest = MessageDigest.getInstance("SHA-1");

Cheers--

Charles
---
Charles Johnson
Advanced Computing Center for Research and Education
Vanderbilt University