From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Subject: Re: [Bluez-users] Key exchange before pairing From: Marcel Holtmann To: bluez-users@lists.sourceforge.net In-Reply-To: <537e39c905062907433980aa7f@mail.gmail.com> References: <537e39c905062907433980aa7f@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 Message-Id: <1120067870.15397.134.camel@pegasus> Mime-Version: 1.0 Sender: bluez-users-admin@lists.sourceforge.net Errors-To: bluez-users-admin@lists.sourceforge.net Reply-To: bluez-users@lists.sourceforge.net List-Unsubscribe: , List-Id: BlueZ users List-Post: List-Help: List-Subscribe: , List-Archive: Date: Wed, 29 Jun 2005 19:57:50 +0200 Hi Jordi, > I would like to know if it is possible to perform a "peer key > exchange" prior to the pairing operation, in order to for example, > have the peers exchange some extra information about them and be able > for example to look-up different PINs for every different service / > connection / device. >=20 > I have written a little program using rfcomm sockets (although I am > planing to change them to BNEP ones) which carries out the data > exchange without problems as long as the security manager is set to > 'none'. >=20 > But I would like to be able to replace the normal pairing procedure > with this "key exchange between bluetooth peers" procedure:=20 >=20 > * it is then possible to trigger (maybe via 'pin_helper' ?) a data > exchange between the two bluetooth sockets (using raw L2CAP sockets, > for example) while the devices are _not paired_ and while the security > level is set at least to authentication ? >=20 > * I tried to change the rfcomm "working" sockets program to L2CAP > sockets, but then I don=B4t know which Protocol Service MUX (psm) valu= e > I might have to set for this sockets to have them connect successfully > (the one from an already existing service, one of the reserved > values?!).=20 >=20 > I tried different odd values greater than 1 for the psm (using > htobs(psm)) and I get the following error message:=20 >=20 > Cannot connect to socket: Connection refused (111) >=20 > I would really appreciate it if you could help me out or give me some > advise on these topics. actually I have no idea what you are trying to achieve. Try to include examples, because I can't follow you. Regards Marcel ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click _______________________________________________ Bluez-users mailing list Bluez-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bluez-users