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CCNxCon2012: Session 5: CCN Location Sharing System
 

CCNxCon2012: Session 5: CCN Location Sharing System

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CCN Location Sharing System

CCN Location Sharing System
Fabien Gavelle, Farid Benbadis (Thales Communications & Security S.A., France)

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    CCNxCon2012: Session 5: CCN Location Sharing System CCNxCon2012: Session 5: CCN Location Sharing System Document Transcript

    • CCN  location  sharing  system (1)   Fabien  Gavelle,  Farid  Benbadis,  Jérémie  Leguay   Thales  Communications  and  Security,  France     Context     R1 Constraint  networks        Networks  with  a  high  bit  error  rate  and  latency   Communications  between  nodes  must  be  confidential   VHF/HF   R2 R3 Hierarchical  topology    Each  network  is  provided  with  a  head  (R1,  R2,  R3)    A  head  can  act  as  a  gateway  between  two  networks  (R2,  R3)   VHF/HF VHF/HF   Nodes  share  information    Nodes  need  to  share  their  location   X1 X3 X2  Information  sharing  is  controlled  and  limited  by  the  heads         Location  sharing  without  CCN   Integration  of  CCN       When  a  node  wants  to  retrieve  another  node  location   CCN  architecture  objectives    The  node  expresses  a  request  for  the  location    Limit  the  number  of  exchanged  messages  between  the  nodes  sharing    The  request  is  forwarded  to  the  destination  (if  authorized  by  the  heads   information   of  the  crossed  networks)   Improve  the  network  resource  consumption    The  location  is  returned  by  the  destination  to  the  interested  node   Deliver  the  shared  information  in  a  timely  manner       Problem  statement   How  to  integrate  the  CCN  architecture  ?    Same  location  required  by  nearby  nodes    Using  the  open  source  code  developed  by  CCNx    Retransmission  from  the  source  to  the  destination  in  case  of  loss    Develop  the  application  on  top  of  the  CCNx  architecture           Location  sharing   Location  retrieval       R1 R1 The  Interest  is  forwarded  if   X1  wants  to  share   X2  and  X3  want  to   3   authorized  by  the  heads   its  position   retrieve  X1  location   2   k1  is    generated  and   R2 4 R2 2   stored  by  R2   R3 R3 Interest  to  request  a   s   k1  is  delivered   Interest  to  request  X1   symmetric  key   and  stored  by   k1   symmetric  key   intermediate   1   VHF/HF nodes   3   k1  is  delivered  as  a   Data   k1   X3 X3 X1 X2 X1 X2 4   X1  Content  Store   1   5   X1  encrypts  and  shares  its   E(X1 location) k1 X2  and  X3  retrieve  E(X1 location) k1 X2  and  X3  can  decrypt  the   location   using  the  traditional  CCN  mechanisms   retrieved  position   Location sharing system evaluation   Topologies    20  hierarchical  topologies    Number  of  nodes  =  [5,  10,  15,  20,  25,  30,  35,  40]     Scenario    Each  node  retrieves  the  location  of  all  the  other  nodes  (one  time)     Measurements    For  each  topology,  the  number  of  exchanged  messages  is  counted  with   and  without  CCN     (1)  This  research  project  is  funded  by  FP7  Fi-­‐Content