A third-party obfuscator is not strictly required, but it certainly adds an
additional level of security. We even mention it in our developer docs:

The LVL provides a full Obfuscator implementation called AESObfuscator that
> uses AES encryption to obfuscate data. You can use AESObfuscator in your
> application without modification or you can adapt it to your needs. For more
> information, see the next section.


> Alternatively, you can write a custom Obfuscator based on your own code or
> use an obfuscator program such as ProGuard for additional security.


-- 
Trevor Johns
Google Developer Programs, Android
http://developer.android.com

On Tue, Jul 27, 2010 at 2:44 PM, sblantipodi
<perini.dav...@dpsoftware.org>wrote:

> I haven't understood if using this library external obfuscation
> (proguard for example) is needed
> for security reason or if we can avoid using external obfuscator, it's
> quite a pain using proguard in netbeans plus android sdk.
>
> On Jul 27, 10:24 pm, Sebastian Rodriguez <srodrig...@gmail.com> wrote:
> > I agree with Anton Persson. When will Google realize that opening the
> paid
> > market to all the other countries is crucial for the market environment
> :(
> > We don't have access to them here in Singapore either.
> >
> > But this is a major step already, let's hope for even better!
> >
> > Seb
> >
> > On 28 July 2010 04:19, Kaj Bjurman <kaj.bjur...@gmail.com> wrote:
> >
> >
> >
> > > I saw that entry, and have a question.
> >
> > > What will happen if the user doesn't have network connectivity? Many
> > > users turn of data traffic when they travel to other countries, but
> > > the probably still want to use the licensed applications.
> >
> > > On 27 Juli, 19:55, Trevor Johns <trevorjo...@google.com> wrote:
> > > > Android fans,
> > > > For those of you who haven't already heard through our blog, we've
> > > > just launched the Android Market licensing service:
> >
> > > >
> http://android-developers.blogspot.com/2010/07/licensing-service-for-...
> >
> > > > From the above blog post:
> >
> > > > "This simple and free service provides a secure mechanism to manage
> > > > access to all Android Market paid applications targeting Android 1.5
> > > > or higher. At run time, with the inclusion of a set of libraries
> > > > provided by us, your application can query the Android Market
> > > > licensing server to determine the license status of your users. It
> > > > returns information on whether your users are authorized to use the
> > > > app based on stored sales records."
> >
> > > > Developer documentation is available here:
> >
> > > >http://developer.android.com/guide/publishing/licensing.html
> >
> > > > Happy coding!
> >
> > > > --
> > > > Trevor Johns
> > > > Google Developer Programs, Androidhttp://developer.android.com
> >
> > > --
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> >
> > --
> > Sebastien Rodriguez
>
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