SNAC(17,07)  SRV_AUTH_KEY_RESPONSE 

This is the second snac in md5 crypted login sequence. Server send this for SNAC(17,06) request. This snac contain server generated auth key. Client should use it to crypt password.

 00 17   word   SNAC family
 00 07   word   SNAC subtype
 00 00   word   SNAC flags
 xx xx xx xx   dword   SNAC request-id
 xx xx xx xx   dword   Auth key length
 xx ..   string   Auth key

Example SNAC dump with flap header:

  2A 02 20 0D 00 46 00 17  00 07 00 00 00 00 00 00 *. ..F..........
  00 00 00 38 42 37 47 44  34 61 37 61 39 30 31 6F ...8B7GD4a7a901o
  33 30 32 30 61 66 32 32  65 42 38 31 3F 63 44 38 3020af22eB81?cD8
  33 36 30 38 39 32 37 50  71 65 61 65 31 31 35 38 3608927Pqeae1158
  42 3D 40 44 33 63 42 46  63 36 30 61             B=@D3cBFc60a


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