From: Michael Fellinger <m.fellinger@...>
Date: 2010-04-19T06:16:47+09:00
Subject: Re: MD5 16 octet - how to compute?

On Mon, Apr 19, 2010 at 3:26 AM, Shuaib Zahda <shuaib.zahda@gmail.com> wrote:
> Hi there
>
> I am trying to compute the 16 octet MD5 hash.
> I looked in the digest/md5 and i could not figure it out.
> i used Digest::MD5.hexdigest(value)
> but this computes 32 if I am not mistaken.
>
> Any idea please?

MD5 computes a 128bit hash.
If you use MD5.hexdigest, you will get a String representation in base
16, so it's 32 octets.
You could use MD5.digest instead, which returns a String in base 255,
that means it's 16 octets.

-- 
Michael Fellinger
CTO, The Rubyists, LLC