Re: [pulseaudio-tickets] [PulseAudio] #421: emulated AirPort Express as audio source

2011-04-11 Thread PulseAudio 
#421: emulated AirPort Express as audio source
--+-
  Reporter:  albert   |   Owner:  lennart 
  Type:  enhancement  |  Status:  reopened
 Milestone:   |   Component:  daemon  
Resolution:   |Keywords:  
--+-
Changes (by mourad):

 * cc: bugs-pulseau...@aquazul.com (added)
  * status:  closed = reopened
  * resolution:  wontfix =


Comment:

 Now that the private key has been reverse-engineered and is in the open,
 maybe it's time to revisit this ticket.

 It would be a nice feature, considering AirPlay (RAOP) is still used a
 lot for quite a lot of devices (iTunes, iOS, appletv, etc).

 [http://mafipulation.org/blagoblig/2011/04/08#shairport shairport]

-- 
Ticket URL: http://pulseaudio.org/ticket/421#comment:6
PulseAudio http://pulseaudio.org/
The PulseAudio Sound Server
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Re: [pulseaudio-tickets] [PulseAudio] #421: emulated AirPort Express as audio source

2008-11-25 Thread PulseAudio 
#421: emulated AirPort Express as audio source
--+-
  Reporter:  albert   |   Owner:  lennart
  Type:  enhancement  |  Status:  closed 
  Priority:  low  |   Milestone: 
 Component:  daemon   |Severity:  normal 
Resolution:  wontfix  |Keywords: 
--+-
Changes (by coling):

  * status:  new = closed
  * resolution:  = wontfix

Comment:

 Well I'm not a crypto-ninja but my basic understanding is that yes, we
 need to work out the private key equiv of the above. I'm not sure how many
 keys are used in the airtunes devices, not sure if it's actually got
 several public key/private key pairs or just the one.

 There is good info here:
 http://www.cocoadev.com/index.pl?AirTunes

 In the absence of any amazing breakthrough, I may as well close this bug
 :(

 FWIW, if someone worked on native fake-sound card devices for OSX and
 Windows for pulse, the need to use this facility would be more or less
 removed We just need passionate OSX and Windows devs to take up the
 challenge.

 Feel free to join in more discussion on the PA mailing list if you think
 you can step up to the plate ;)

-- 
Ticket URL: http://www.pulseaudio.org/ticket/421#comment:5
PulseAudio http://pulseaudio.org/
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Re: [pulseaudio-tickets] [PulseAudio] #421: emulated AirPort Express as audio source

2008-11-24 Thread PulseAudio 
#421: emulated AirPort Express as audio source
--+-
  Reporter:  albert   |   Owner:  lennart
  Type:  enhancement  |  Status:  new
  Priority:  low  |   Milestone: 
 Component:  daemon   |Severity:  normal 
Resolution:   |Keywords: 
--+-
Comment (by albert):

 I would love to develop on this by myself, but I know barely nothing about
 the AirPort Express and only less about the PulseAudio internals.

 If anybody could help me a bit out here, give a rough overview where to
 start and what to do, that would be nice.

 For example:
 1. How can I distribute the server as an AirPort Express base station via
 Avahi?
 2. Good starting point for the emulation itself? (I assume that I would
 have to listen on some UDP port and then decode the stream, which is coded
 as Apple Lossless audio as far as I know. I would try to get the needed
 information about the protocol from the raop-play project.)

-- 
Ticket URL: http://www.pulseaudio.org/ticket/421#comment:2
PulseAudio http://pulseaudio.org/
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Re: [pulseaudio-tickets] [PulseAudio] #421: emulated AirPort Express as audio source

2008-11-24 Thread PulseAudio 
#421: emulated AirPort Express as audio source
--+-
  Reporter:  albert   |   Owner:  lennart
  Type:  enhancement  |  Status:  new
  Priority:  low  |   Milestone: 
 Component:  daemon   |Severity:  normal 
Resolution:   |Keywords: 
--+-
Comment (by albert):

 Hi Coling,

 Thank you very much for pointing that out. That is really a pity.

 To point it out more clearly, we basically have to get the private RSA key
 which belongs to this public RSA key:

 {{{
 152 static int rsa_encrypt(uint8_t *text, int len, uint8_t *res) {
 153 const char n[] =
 154
 59dE8qLieItsH1WgjrcFRKj6eUWqi+bGLOX1HL3U3GhC/j0Qg90u3sG/1CUtwC
 155
 5vOYvfDmFI6oSFXi5ELabWJmT2dKHzBJKa3k9ok+8t9ucRqMd6DZHJ2YCCLlDR
 156
 KSKv6kDqnw4UwPdpOMXziC/AMj3Z/lUVX1G7WSHCAWKf1zNS1eLvqr+boEjXuB
 157
 OitnZ/bDzPHrTOZz0Dew0uowxf/+sG+NCK3eQJVxqcaJ/vEHKIVd2M+5qL71yJ
 158
 Q+87X6oV3eaYvt3zWZYD6z5vYTcrtij2VZ9Zmni/UAaHqn9JdsBWLUEpVviYnh
 159 imNVvYFZeCXg/IdTQ+x4IRdiXNv5hEew==;
 160 const char e[] = AQAB;
 ...
 }}}
 (code from
 http://www.pulseaudio.org/browser/src/modules/raop/raop_client.c)

 The private key should be stored somewhere on the AirPort Express and is
 used to decrypt the message (as I have seen from the code, this RSA
 encryption is only used to transfer the AES key, whereby that does not
 really matter for the problem).

 I sadly don't own an Airport Express myself, but for somebody who has
 access to one, wouldn't it be possible somehow to read the key from the
 device? (I guess that the key is not stored in any of their firmware
 updates, which would be a bit easier to read (or is it?).)

-- 
Ticket URL: http://www.pulseaudio.org/ticket/421#comment:4
PulseAudio http://pulseaudio.org/
The PulseAudio Sound Server
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