It allows your apps to work closely together (share files, share
processes, share permissions) while still being protected from other
apps.

It also prevents your apps from being replaced by someone pretending
that they're you (and thus accessing all of your apps' data).

JBQ

On Thu, Feb 12, 2009 at 11:02 AM, Mattaku Betsujin
<[email protected]> wrote:
> Then what's the point of signing? To make sure another app cannot use the
> same package name and thus overwrite my app?
>
> Thanks
>
> On Tue, Feb 10, 2009 at 5:38 PM, Dianne Hackborn <[email protected]>
> wrote:
>>
>> Android doesn't use CAs at all, period.  It makes no difference whether
>> you self-sign or use a CA, the system and user will never know the
>> difference.
>>
>> On Tue, Feb 10, 2009 at 4:53 PM, Mattaku Betsujin
>> <[email protected]> wrote:
>>>
>>> Hi,
>>>
>>> If I go cheap and don't pay the $xx or so for a real VerifySign
>>> certificate, and just use a self-signed certificate to sign my app, will it
>>> appear as a second-class citizen on the Android Market?
>>>
>>> Specially, will the user get a prompt like "this app is signed by a
>>> possibly untrustyworthy scheming bastard, do you still want to risk your
>>> life install it"?
>>>
>>> If not now, will such a policy be enforced in the future?
>>>
>>> Thanks
>>> - Mattaku
>>>
>>
>>
>>
>> --
>> Dianne Hackborn
>> Android framework engineer
>> [email protected]
>>
>> Note: please don't send private questions to me, as I don't have time to
>> provide private support.  All such questions should be posted on public
>> forums, where I and others can see and answer them.
>>
>>
>>
>>
>> >>
>



-- 
Jean-Baptiste M. "JBQ" Queru
Android Engineer, Google.

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