Re: [Bluez-users] auto pairing between client & server

[Marco Trudel <mtrudel@gmx.ch>]

N. I. wrote:
> Hi Marco,
> 
> I ran a test with the new configuration and found out the bluetooth
> devices which has this config modified accepted any device coming. The
> pairing window is not poped up anymore, but the link_key is not
> updated (still 0 byte).

yes. because no link key is created.

> As my understanding, this config ignores the pairing and pin code. It
> accepts all devices connecting to my device, no authentication. Is
> that it?

yes. you can't use security mode 3 for what you're trying to reach. you 
need security mode 2 (application based autentication/encryption).

> What I want is to avoid the pin popup for certain bluetooth devices
> (know specific BD_ADDR). When those allowed devices connect to my
> device, then I will try to provide "silently" the PIN (no popups) and
> the pairing should be done from there. If other device which BD_ADDR
> does not belong to the list of addresses that my device has, it should
> not be rejected.

I don't think this is possible because you don't know the remote BD_ADDR 
until the device has connected to your device. And if it has already 
connected, it's too late for bluteooth based autentication/encryption. So 
you might implement an own authentication/encryption algorithm for your 
purpose.
Please note that I'm not an expert. Maybee this works and I just don't know it.


regards
Marco

> Any help please?
> 
> N.I.
> 
> On 4/25/05, Marco Trudel <mtrudel@gmx.ch> wrote:
> 
>>change to security mode 1. that means to comment out:
>>#auth enable;
>>#encrypt enable;
>>
>>you can keep "security auto".
>>
>>regards
>>Marco
>>
>>
>>N. I. wrote:
>>
>>>In the hcid.conf file, I have:
>>>security auto;
>>>auth enable;
>>>
>>>Is that what you meant I should change to be off?
>>>
>>>
>>>
>>>On 4/23/05, Marco Trudel <mtrudel@gmx.ch> wrote:
>>>
>>>
>>>>N. I. wrote:
>>>>
>>>>
>>>>>I have a laptop which runs my application as server, and another
>>>>>cellphone as client. Both of them communicate to each other using
>>>>>Bluetooth (Bluez implementation).
>>>>
>>>>do you really mean the mobile phone is using bluez?
>>>>what for a mobilephone is this?
>>>>
>>>>
>>>>
>>>>>What should I do in order to perform automatic pairing between these 2
>>>>>devices (knowing the BD_ADDR) inside my application?
>>>>>
>>>>>How can I detect if the pairing had been done between these
>>>>>client-server devices inside my application? And from that, how to do
>>>>>pairing using the "givepin" script?
>>>>>
>>>>>I want to avoid the pop-ups window asking for entering the PIN.
>>>>
>>>>disable authentication/encryption. you won't be asked for a pin because no
>>>>one is needed. you haven't to change the default bluez configuration to
>>>>reach this.
>>>>if you use java on your mobile phone, be shure to program the security
>>>>correctly.
>>>>
>>>>regards
>>>>Marco
>>>>
>>>>
>>>>
>>>>>Please help,
>>>>>
>>>>>Thanks
>>>>>
>>>>>N.I.
>>>>>
>>>>>
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> 
> 
> 
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